First-aid repair joint for rapid maintenance of stainless steel pipe

By designing emergency repair sections for the upper and lower shells, and combining annular absorbent cotton, inner sealing ring gasket, and rubber sealing block, the problem of poor sealing performance of stainless steel pipes was solved, achieving a fast and effective sealing connection.

CN223768447UActive Publication Date: 2026-01-06KUNSHAN DONGBU RUNNING WATER PIPE INSTALL CO LTD
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Patent Information

Application Number
CN202422849540.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2026-01-06
Estimated Expiration
2034-11-22

AI Technical Summary

Technical Problem

The sealing performance of existing stainless steel pipe repair joints is poor, and traditional connection methods are not effective enough in sealing, leading to leakage problems.

Method used

The emergency repair section, which adopts an upper and lower shell design, includes a connecting plate, a fixing plate, a rotating shaft, a sealing assembly, and a tight connection assembly. It uses an annular absorbent cotton, an inner sealing ring gasket, and a rubber sealing block to improve the sealing performance, and achieves a tight connection through a limiting groove and bolt connection.

Benefits of technology

It improves the sealing performance and connection stability of stainless steel pipes, reduces the risk of leakage, and achieves fast and effective maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a first-aid repair joint for quickly maintaining a stainless steel pipe, which belongs to the technical field of stainless steel pipes and comprises an upper shell and a lower shell, connecting plates are fixedly connected to one end of the outer surface of the upper shell and one end of the outer surface of the lower shell, the two connecting plates are rotatably connected through a rotating shaft, and an inner sealing ring gasket can be tightly attached to a pipeline. Meanwhile, the annular absorbent cotton can absorb water discharged from the water leakage position, the size is increased, when the size of the annular absorbent cotton is increased, generated force can drive the inner sealing ring pad to be attached to the pipeline more tightly, the sealing performance is better, the sealing effect is also improved through the arrangement of the rubber sealing block, the upper shell and the lower shell are buckled to the water leakage position of the pipeline, and the sealing effect is better. The limiting plates are completely inserted into the limiting grooves, bolts penetrate through the through holes and then are connected into the threaded holes in a threaded mode to achieve compression connection between the upper shell and the lower shell, and the sealing effect is further improved through the arrangement of the limiting plates.
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Description

Technical Field

[0001] This utility model relates to the field of stainless steel pipe technology, and in particular to a quick repair section for stainless steel pipes. Background Technology

[0002] Emergency repair technology originated from the need for rapid pipeline repair. Stainless steel pipes are widely used in pipeline transportation due to their excellent corrosion resistance and high strength. However, due to various reasons (such as aging, wear, and improper construction), stainless steel pipes sometimes experience problems such as leaks and damage. Traditional repair methods often require a long time and specialized welding techniques and equipment, which brings many inconveniences in practical applications. Therefore, emergency repair technology emerged, employing a simpler and faster repair method, greatly improving repair efficiency and reducing repair costs.

[0003] However, common emergency repair joints do not have good sealing performance and leaks can still occur after the pipe is wrapped; at the same time, traditional emergency repair joints rely solely on bolts for connection, which does not provide a good enough seal. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a rapid repair section for stainless steel pipes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: It includes an upper shell and a lower shell. A connecting plate is fixedly connected to one end of the outer surface of both the upper and lower shells. The two connecting plates are rotatably connected via a rotating shaft. A fixing plate is fixedly connected to the other end of the outer surface of both the upper and lower shells. A tight-connecting assembly is connected to the fixing plate. A sealing assembly is connected inside the upper and lower shells. The sealing assembly includes annular absorbent cotton fixed to both sides of the inner surface of the upper shell and both sides of the inner surface of the lower shell. An inner sealing ring gasket is fixedly connected to the inner surface of the annular absorbent cotton. Outer sealing ring gaskets are fixedly connected to both ends of the inner surfaces of the upper and lower shells. The annular absorbent cotton and the inner sealing ring gaskets are fixedly connected to their corresponding outer sealing ring gaskets. Grooves are provided at both ends of the upper shell and both ends of the lower shell. Rubber sealing blocks are connected to the grooves on the upper shell. The bottom ends of the two rubber sealing blocks are respectively inserted into the two grooves on the lower shell.

[0006] As a further description of the above technical solution:

[0007] The tight connection assembly includes limiting grooves respectively opened on the opposite side walls of the two fixed plates. A matching limiting plate is embedded in both limiting grooves. A plurality of threaded holes are spaced apart on the top surface of the limiting plate. A plurality of through holes are spaced apart on the fixed plate connected to the upper housing. The positions of the plurality of through holes correspond one-to-one with the positions of the plurality of threaded holes. Bolts are inserted into the plurality of through holes. The bottom end of the bolts passes through the through holes and is threaded into the corresponding threaded holes.

[0008] As a further description of the above technical solution:

[0009] Both of the aforementioned limiting grooves are arranged along the axial direction of the outer shell.

[0010] As a further description of the above technical solution:

[0011] The inner cavities of the two limiting grooves are connected, the cross-sections of the two limiting grooves are opposite T-shapes, and the cross-sections of the two limiting grooves form an I-shape.

[0012] As a further description of the above technical solution:

[0013] The ends of the outer sealing ring gasket, annular absorbent cotton, and inner sealing ring gasket on the upper housing are in close contact with the ends of the outer sealing ring gasket, annular absorbent cotton, and inner sealing ring gasket on the lower housing.

[0014] As a further description of the above technical solution:

[0015] Reinforcing ribs are fixed to the sides of the two connecting plates that are far apart from each other and the sides of the two fixing plates that are far apart from each other. The two upper reinforcing ribs are fixed to the outer surface of the upper shell, and the two lower reinforcing ribs are fixed to the outer surface of the lower shell.

[0016] As a further description of the above technical solution:

[0017] The outer wall of the rubber sealing block is in close contact with the inner wall of the groove.

[0018] This utility model has the following beneficial effects:

[0019] 1. In this utility model, the inner sealing ring gasket can be tightly attached to the pipe, and the annular absorbent cotton will absorb the water discharged from the leak, increasing its volume. When the volume of the annular absorbent cotton increases, the force generated can drive the inner sealing ring gasket to be attached to the pipe more tightly, resulting in better sealing. The setting of the rubber sealing block also improves the sealing effect.

[0020] 2. In this utility model, the upper and lower housings are fastened to the leaking part of the pipe, the limiting plate is fully inserted into the limiting groove, and the bolt is threaded into the threaded hole after passing through the through hole to achieve a pressing connection between the upper and lower housings. The setting of the limiting plate further improves the sealing effect. Attached Figure Description

[0021] Figure 1 This utility model presents a schematic diagram of the overall structure of a rapid repair section for stainless steel pipes. Figure 1 ;

[0022] Figure 2 This utility model presents a schematic diagram of the overall structure of a rapid repair section for stainless steel pipes. Figure 2 ;

[0023] Figure 3 This utility model presents a schematic diagram of the overall structure of a rapid repair section for stainless steel pipes. Figure 3 ;

[0024] Figure 4 This is a schematic diagram of a tight connection assembly for a quick repair section of a stainless steel pipe, as proposed in this utility model.

[0025] Legend:

[0026] 1. Upper shell; 2. Lower shell; 3. Connecting plate; 4. Reinforcing rib; 5. Outer sealing ring gasket; 6. Annular absorbent cotton; 7. Inner sealing ring gasket; 8. Fixing plate; 9. Limiting groove; 10. Limiting plate; 11. Bolt; 13. Rubber sealing block; 14. Groove II; 15. Threaded hole; 16. Through hole. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Reference Figures 1-4An embodiment of this utility model includes an upper shell 1 and a lower shell 2. A connecting plate 3 is fixedly connected to one end of the outer surface of both the upper shell 1 and the lower shell 2. The two connecting plates 3 are rotatably connected via a rotating shaft. A fixing plate 8 is fixedly connected to the other end of the outer surface of both the upper shell 1 and the lower shell 2. A tight-connecting assembly is connected to the fixing plate 8. A sealing assembly is connected inside the upper shell 1 and the lower shell 2. The sealing assembly includes annular absorbent cotton 6 fixedly connected to both sides of the inner surface of the upper shell 1 and both sides of the inner surface of the lower shell 2. The inner surface of the annular absorbent cotton 6... An inner sealing ring gasket 7 is fixedly attached to the surface. An outer sealing ring gasket 5 is fixedly connected to both ends of the inner surface of the upper housing 1 and the lower housing 2. The outer sealing ring gasket 5 can prevent the liquid inside the annular absorbent cotton 6 from being squeezed out. The annular absorbent cotton 6 and the inner sealing ring gasket 7 are fixedly connected to the corresponding outer sealing ring gasket 5. Grooves 14 are provided at both ends of the upper housing 1 and both ends of the lower housing 2. Rubber sealing blocks 13 are connected to the grooves 14 on the upper housing 1. The bottom ends of the two rubber sealing blocks 13 are respectively inserted into the two grooves 14 on the lower housing 2.

[0029] The tight-fitting assembly includes limiting grooves 9 respectively opened on the opposite side walls of two fixed plates 8. A matching limiting plate 10 is embedded in both limiting grooves 9. The limiting plate 10 improves the sealing effect. Multiple threaded holes 15 are spaced apart on the top surface of the limiting plate 10. Multiple through holes 16 are spaced apart on the fixed plate 8 connected to the upper housing 1. The positions of the multiple through holes 16 correspond one-to-one with the positions of the multiple threaded holes 15. Bolts 11 are inserted into each of the multiple through holes 16, with the bottom end of the bolt 11 penetrating the through hole 16 and threaded into the corresponding threaded hole 15. Both limiting grooves 9 are arranged along the axial direction of the outer shell. The inner cavities of groove 9 are connected. The cross-sections of the two limiting grooves 9 are T-shaped relative to each other. The cross-sections of the two limiting grooves 9 form an I-shape. The ends of the outer sealing ring gasket 5, the annular absorbent cotton 6, and the inner sealing ring gasket 7 on the upper housing 1 are in close contact with the ends of the outer sealing ring gasket 5, the annular absorbent cotton 6, and the inner sealing ring gasket 7 on the lower housing 2. The two connecting plates 3 and the two fixing plates 8 are fixedly connected to the opposite sides. The two upper reinforcing ribs 4 are fixedly connected to the outer surface of the upper housing 1, and the two lower reinforcing ribs 4 are fixedly connected to the outer surface of the lower housing 2. The outer wall of the rubber sealing block 13 is in close contact with the inner wall of the groove 14.

[0030] Working principle: The upper housing 1 and lower housing 2 are fastened to the leaking part of the pipe. The limiting plate 10 is fully inserted into the limiting groove 9. The bolt 11 is passed through the through hole 16 and threaded into the threaded hole 15 to achieve a tight connection between the upper housing 1 and the lower housing 2. The setting of the limiting plate 10 improves the sealing effect. After the tight connection between the upper housing 1 and the lower housing 2 is achieved, the inner sealing ring gasket 7 will be tightly attached to the pipe. At the same time, the annular absorbent cotton 6 will absorb the water discharged from the leak, increasing its volume. When the volume of the annular absorbent cotton 6 increases, the force generated can make the inner sealing ring gasket 7 fit more tightly with the pipe, resulting in better sealing. The outer sealing ring gasket 5 can prevent the liquid inside the annular absorbent cotton 6 from being squeezed out. The setting of the rubber sealing block 13 also improves the sealing effect.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick repair joint for repairing a stainless steel pipe, comprising an upper casing (1) and a lower casing (2), characterized in that: One end of the outer surface of the upper shell (1) and the lower shell (2) is fixedly connected with a connecting plate (3), the two connecting plates (3) are rotatably connected through a rotating shaft, the other end of the outer surface of the upper shell (1) and the lower shell (2) is fixedly connected with a fixed plate (8), the fixed plate (8) is connected with a tight connection assembly, and the upper shell (1) and the lower shell (2) are connected with a sealing assembly; The sealing assembly assembly comprises annular water-absorbing cotton (6) fixedly connected to the inner surfaces of the upper shell (1) and the lower shell (2), and inner sealing ring pads (7) fixedly connected to the inner surfaces of the annular water-absorbing cotton (6), both ends of the inner surfaces of the upper shell (1) and the lower shell (2) are fixedly connected with outer sealing ring pads (5), the annular water-absorbing cotton (6) and the inner sealing ring pads (7) are fixedly connected with the corresponding outer sealing ring pads (5), both ends of the upper shell (1) and both ends of the lower shell (2) are provided with grooves (14), and the grooves (14) on the upper shell (1) are connected with rubber sealing blocks (13), and the bottom ends of the two rubber sealing blocks (13) are respectively inserted into the two grooves (14) on the lower shell (2).

2. A quick repair clamp according to claim 1, characterized in that: The tight connection assembly comprises limiting grooves (9) formed in the opposite two side walls of the two fixed plates (8), respectively, a limiting plate (10) is embedded in the two limiting grooves (9) and is matched with the limiting grooves (9), a plurality of threaded holes (15) are formed in the top end face of the limiting plate (10) and are spaced apart from each other, a plurality of through holes (16) are formed in the fixed plate (8) connected with the upper shell (1) and are spaced apart from each other, the positions of the plurality of through holes (16) correspond to the positions of the plurality of threaded holes (15) one by one, and a plurality of bolts (11) are inserted into the plurality of through holes (16), and the bottom ends of the bolts (11) penetrate through the through holes (16) and are threadedly connected in the corresponding threaded holes (15).

3. A quick repair clamp according to claim 2, characterized in that: Both the limiting grooves (9) are arranged along the axis direction of the shell.

4. The quick repair clamp of stainless steel pipe according to claim 2, characterized in that: The inner cavities of the two limiting grooves (9) are communicated, the cross sections of the two limiting grooves (9) are opposite T-shaped, and the cross sections of the two limiting grooves (9) form a H-shaped structure.

5. A quick repair clamp as defined in claim 1, wherein: The end portions of the outer sealing ring pads (5), the annular water-absorbing cotton (6) and the inner sealing ring pads (7) on the upper shell (1) are in close contact with the end portions of the outer sealing ring pads (5), the annular water-absorbing cotton (6) and the inner sealing ring pads (7) on the lower shell (2).

6. A quick repair clamp as defined in claim 1, wherein: The sides of the two connecting plates (3) away from each other and the sides of the two fixed plates (8) away from each other are fixedly connected with reinforcing ribs (4), the two reinforcing ribs (4) located above are fixedly connected with the outer surface of the upper shell (1), and the two reinforcing ribs (4) located below are fixedly connected with the outer surface of the lower shell (2).

7. A quick repair clamp as defined in claim 1, wherein: The outer wall of the rubber sealing block (13) is in close contact with the inner wall of the groove (14).