A pipe repairer

Abstract

The invention discloses a pipeline repairer, which relates to the technical field of repairers and comprises a half-type repairer composed of an upper shell of the pipeline repairer, a lower shell of the pipeline repairer and a sealing gasket, wherein two groups of sealing gaskets are provided, and the two groups of sealing gaskets are respectively arranged on the inner walls of the upper shell of the pipeline repairer and the lower shell of the pipeline repairer; the sealing gasket comprises two groups of parallel corresponding straight edge pads, two groups of external arc edge pads arranged between the two groups of straight edge pads and two groups of internal arc edge pads, wherein the two groups of external arc edge pads are respectively located at the two ends of the two groups of straight edge pads, and the two groups of internal arc edge pads are independently arranged on the inner sides of the two groups of external arc edge pads, and the inner ring radius of the internal arc edge pad is larger than the inner ring radius of the external arc edge pad; the pipeline repairer can realize double-channel sealing and has a good anti-slip effect at the same time, the bolt assembly has a two-way anti-rotation function, the shell strength is correspondingly improved, and the comprehensive performance is better.

Description

Technical Field

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

[0002] In the field of rapid repair of urban fluid delivery pipelines, especially in the field of rapid repair of urban water supply pipelines, pipeline repairers have played a huge role. Among them, most pipeline repairers are half-type structures, and their main components are upper and lower shells and upper and lower sealing rubber pads, which are installed and connected into a whole through bolt assemblies, wrapped around the pipeline, and play a sealing role.

[0003] The half-structured pipe repairer consists of an upper and lower shell composed of a straight edge section and an arc edge section. The upper shell has a pressure relief hole for installing a plug, which plays a role in pressure relief during rapid pipe repair. Among them, the straight edge section is provided with a bolt hole for installing a bolt assembly.

[0004] In the existing repairer housing, the bolt holes are round holes and ordinary hexagonal bolts are used, or square holes and semi-circular square neck bolts are used. When round holes are used and ordinary hexagonal bolts are used, in combination with a pipeline repairer and its housing bolt anti-rotation structure disclosed in patent number CN210240913U, one-way anti-rotation of the bolts can be achieved, that is, the bolts can only be installed in one direction. When square holes are used and semi-circular square neck bolts are used, although two-way anti-rotation can be achieved, that is, the bolts can be installed in both directions, there are many unfavorable factors and defects in the installation of semi-circular square neck bolt assemblies, such as: the arc radius of the square neck of the bolt is too small, resulting in stress concentration, and the square neck section is not easy to install and difficult to center and align. The square neck bolts are easy to loosen under vibration, impact, and excessive temperature difference. In addition, the square holes on the straight edge sections of the upper and lower shells are prone to casting defects such as pores, shrinkage cavities and shrinkage, sand sticking, and sand inclusions during the casting process.

[0005] At the same time, in actual use, the internal stresses of the upper and lower shells of the Half type pipeline repairer are different at different locations. The internal stress of the arc edge section near the position where the straight edge section is connected is relatively large. Therefore, in order to increase the strength of this section, the upper and lower shells of the existing Half type pipeline repairer are mainly locally reinforced by reinforcing ribs, which is a single method and has limited reinforcement effect. In addition, the existing Half type pipeline repairer either does not have an anti-slip function or has a complex anti-slip structure and is easy to shift on the pipeline.

[0006] In addition, the existing half-structure pipe repairer, as a rubber pad of the sealing component, has an arc-shaped single-body structure, which is not a true double-pass seal. Accordingly, the compression amount of both sides of the rubber pad is equal, and it can only adapt to pipes of a certain diameter. Therefore, the adaptability to the pipe diameter is not very strong. When the pipe diameter has a negative tolerance, the sealing pad can only be thickened as a whole, which will increase the difficulty of installation, and the pressure-bearing requirements for the pipe and the upper and lower shells are high. The compression deformation of the sealing pad is increased as a whole, which is prone to aging and the performance decays faster. Summary of the invention

[0007] The purpose of the present invention is to provide a pipeline repair device to solve the following technical problems:

[0008] How to improve the overall performance of pipeline repairers?

[0009] The purpose of the present invention can be achieved through the following technical solutions:

[0010] The present invention discloses a pipeline repair device, comprising a half-type repair device consisting of an upper shell of the pipeline repair device, a lower shell of the pipeline repair device, and a sealing gasket, wherein the sealing gasket is provided with two groups, and the two groups of sealing gaskets are respectively arranged on the inner walls of the upper shell of the pipeline repair device and the lower shell of the pipeline repair device; the sealing gasket comprises two groups of parallel and corresponding straight-edge gaskets, two groups of external arc-edge gaskets arranged between the two groups of straight-edge gaskets, and two groups of internal arc-edge gaskets, wherein the two groups of external arc-edge gaskets are respectively located at the two ends of the two groups of straight-edge gaskets, and the two groups of internal arc-edge gaskets are independently arranged on the inner sides of the two groups of external arc-edge gaskets, and the inner ring radius of the internal arc-edge gaskets is larger than the inner ring radius of the external arc-edge gaskets; the inner sides of the upper shell of the pipeline repair device and the lower shell of the pipeline repair device are respectively provided with accommodating grooves for embedding the sealing gaskets, wherein a plurality of anti-slip gear teeth are provided on the top surfaces of the groove walls on both sides of the accommodating grooves for embedding the internal arc-edge gaskets.

[0011] In a further embodiment of the present invention: the upper shell of the pipeline repair device includes an upper arc edge segment and two groups of upper straight edge segments respectively connected to the two straight edge ends of the upper arc edge segment, and the inner sides of the two arc edge ends of the upper arc edge segment are respectively provided with upper arc edge accommodating grooves for embedding external arc edge pads and internal arc edge pads; the inner sides of the two groups of upper straight edge segments are respectively provided with upper straight edge accommodating grooves for embedding straight edge pads.

[0012] In a further embodiment of the present invention: the lower shell of the pipeline repair device includes a lower arc edge segment and two groups of lower straight edge segments respectively connected to the two straight edge ends of the lower arc edge segment, and the inner sides of the two arc edge ends of the lower arc edge segment are respectively provided with lower arc edge accommodating grooves for embedding external arc edge pads and internal arc edge pads; the inner sides of the two groups of lower straight edge segments are respectively provided with lower straight edge accommodating grooves for embedding straight edge pads.

[0013] In a further embodiment of the present invention: a plurality of upper annular anti-skid gear teeth and a lower annular anti-skid gear are respectively arranged in a row on the top surfaces of the groove walls on both sides of the upper arc edge accommodating groove and the lower arc edge accommodating groove for embedding the internal arc edge pad, and the gear cross-sections of the two are trapezoidal, and the gear teeth of each row of upper annular anti-skid gear teeth and lower annular anti-skid gear are distributed in an alternating manner, and the tooth tips face the movement direction when the upper shell of the pipeline repair device and the lower shell of the pipeline repair device are locked.

[0014] In a further embodiment of the present invention: an upper flange and a lower flange are respectively provided at the center of the side walls of the upper straight-edge receiving groove and the lower straight-edge receiving groove, and a slot engaged with the upper flange and the lower flange is provided on the straight-edge pad.

[0015] In a further embodiment of the present invention: a plurality of upper mounting holes are provided on the upper straight side section, a plurality of lower mounting holes corresponding to the upper mounting holes are provided on the lower straight side section, and edges are respectively provided on the outer platforms where the upper straight side section is provided with the upper mounting holes and the lower straight side section is provided with the lower mounting holes; the corresponding upper mounting holes are connected with the lower mounting holes to form a connecting channel, and a bolt assembly is provided in the connecting through hole.

[0016] In a further embodiment of the present invention: the bolt assembly includes a matching bolt, a gasket and a nut, wherein the bolt is composed of a head connected to a rod, a falcon body structure is provided at the connection between the rod and the head, and falcon grooves corresponding to the falcon body are provided in the upper mounting hole and the lower mounting hole.

[0017] In a further solution of the present invention: the body structure is a straight-line ...

[0018] In a further solution of the present invention: according to the pipe repairer described in claim, it is characterized in that the outer sides of the two straight side ends of the upper arc edge section and the lower arc edge section are respectively provided with a plurality of upper U-shaped convex patterns and lower U-shaped convex patterns.

[0019] In a further embodiment of the present invention: the pipeline repairer according to claim is characterized in that a pressure relief hole extending outward is provided at the center of the upper arc edge segment.

[0020] Beneficial effects of the present invention:

[0021] 1. In the pipeline repairer of the present invention, the inner ring radius of the inner arc edge pad is set to meet the sealing requirements of the standard pipeline outer diameter, and the inner ring radius of the outer arc edge pad is set to meet the sealing requirements of the negative tolerance pipeline outer diameter. When the pipeline diameter becomes smaller due to negative tolerance, the outer arc edge pad is suitable for the pipeline because of its smaller inner ring radius, that is, larger thickness, and the reduced and narrowed width of the outer arc edge pad is conducive to compression, which can improve the convenience of installation and reduce the pressure requirements of the pipeline and the upper and lower shells; at the same time, if the performance of the outer arc edge pad declines due to excessive compression, the inner arc edge pad inside it still retains normal compression amount and compression performance.

[0022] 2. In the pipeline repair device of the present invention, the internal arc edge pads are respectively embedded in the arc edge receiving grooves located on the inner side. Since a plurality of rows of anti-skid gear teeth are respectively provided on the top surfaces of the groove walls on both sides of the inner arc edge receiving groove, the friction force on the internal arc edge pad can be enhanced, thereby improving the friction force between the sealing pad and the pipeline, improving the anti-skid performance, making the combination between the internal arc edge pad and the arc edge receiving groove closer and firmer, and improving the installation stability of the sealing pad in the upper shell and the lower shell of the pipeline repair device.

[0023] 3. In the pipeline repairer of the present invention, the outer sides of the two straight sides of the upper arc edge section and the lower arc edge section are respectively provided with lower U-shaped convex patterns, which can increase the mechanical strength and aesthetics of the two straight sides of the lower arc edge section.

[0024] 4. In the pipeline repairer of the present invention, the bolt is formed by connecting the head and the rod, a body structure is provided at the connection between the rod and the head, and a groove corresponding to the body structure is provided in the upper mounting hole and the lower mounting hole. By arranging the bolt assembly in the connecting channel, the upper part of the pipeline can be detachably connected to the lower shell of the pipeline repairer, and the clamping design of the body structure and the groove can realize a two-way anti-rotation function for the bolt, and can also avoid the manufacturing defects of the square neck structure and improve the anti-loosening performance. In addition, it will not affect the continued use of ordinary hexagonal head bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] Figure 1 It is a structural schematic diagram of the pipeline repair device of the present invention;

[0027] Figure 2 It is a schematic structural diagram of an upper housing of a pipeline repair device in the pipeline repair device of the present invention;

[0028] Figure 3 The upper housing of the pipeline repair device of the present invention is different from Figure 2 Schematic diagram of the structure;

[0029] Figure 4It is a schematic structural diagram of a lower housing of a pipeline repair device in the pipeline repair device of the present invention;

[0030] Figure 5 The lower housing of the pipeline repair device of the present invention is different from Figure 4 Schematic diagram of the structure;

[0031] Figure 6 It is a structural schematic diagram of a sealing gasket in a pipeline repair device of the present invention;

[0032] Figure 7 is a side view of the pipeline repair device of the present invention;

[0033] Figure 8 It is a structural schematic diagram of a bolt assembly in a pipeline repair device of the present invention.

[0034] In the figure: 100, upper housing of the pipeline repairer; 101, upper arc edge section; 102, upper straight edge section; 103, upper mounting hole; 104, upper straight edge receiving groove; 105, upper flange; 106, upper arc edge receiving groove; 107, upper annular anti-slip gear; 108, upper Chinese-shaped convex pattern; 200, lower housing of the pipeline repairer; 201, lower arc edge section; 202, lower straight edge section; 203, lower mounting hole ; 204, lower straight edge receiving groove; 205, lower flange; 206, lower arc edge receiving groove; 207, lower annular anti-skid gear; 208, lower U-shaped convex pattern; 300, bolt assembly; 301, bolt; 302, gasket; 303, nut; 400, sealing gasket; 401, straight edge gasket; 402, slot; 403, external arc edge gasket; 404, internal arc edge gasket; 500, pipe; 600, along the edge. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figure 1 The present invention is a pipeline repair device, including a half-type repair device consisting of a pipeline repair device upper shell 100, a pipeline repair device lower shell 200, and a sealing gasket 400, which is used to be sleeved on a pipeline 500; wherein, the sealing gasket 400 is provided with two groups, and the two groups of sealing gaskets 400 are respectively embedded in the inner walls of the pipeline repair device upper shell 100 and the pipeline repair device lower shell 200 through accommodating grooves.

[0037] See also Figure 2-3The upper shell 100 of the pipeline repair device includes an upper arc edge section 101 and two groups of upper straight edge sections 102 respectively connected to the two straight edge ends of the upper arc edge section 101, and each group of upper straight edge sections 102 is provided with three upper mounting holes 103; a pressure relief hole 109 extending outward is opened at the center of the upper arc edge section 101 to correspond to the leakage position of the pipeline 500, and a plug is provided on the pressure relief hole 109 to block the pressure relief port 109; upper U-shaped convex patterns 108 are also respectively provided on the outer sides of the two straight edge ends of the upper arc edge section 101 (i.e., close to the two ends of the two groups of upper straight edge sections 102) to increase the mechanical strength and aesthetics of the two straight edge ends of the upper arc edge section 101.

[0038] The inner sides of the two groups of upper straight edge sections 102 are respectively provided with upper straight edge receiving grooves 104, and an upper flange 105 is provided at the center of the groove wall located on the outer side of the upper straight edge receiving groove 104; the inner sides of the two arc edge ends of the upper arc edge section 101 are respectively provided with upper arc edge receiving grooves 106, and each end is provided with two groups of upper arc edge receiving grooves 106, and a plurality of upper annular anti-skid gear teeth 107 are respectively arranged in rows on the top surfaces of the groove walls on both sides of the upper arc edge receiving grooves 106 located on the inner side, and the gear cross-section is trapezoidal, and the gear teeth of each row of upper annular anti-skid gear teeth 107 are distributed in an alternating manner at intervals, and the tooth tips face the movement direction when the upper shell 100 of the pipeline repair device and the lower shell 200 of the pipeline repair device are locked.

[0039] See also Figure 4-5 The structure of the pipeline repair device lower shell 200 is similar to that of the pipeline repair device upper shell 100, and the only difference is that the pipeline repair device lower shell 200 is not provided with a pressure relief hole 109, and other structures are exactly the same. Specifically, the pipeline repair device lower shell 200 includes a lower arc edge segment 201 and two groups of lower straight edge segments 202 respectively connected to the two straight edge ends of the lower arc edge segment 201, and each group of lower straight edge segments 202 is provided with three lower mounting holes 203; the outer sides of the two straight edge ends of the lower arc edge segment 201 (that is, close to the two ends of the two groups of lower straight edge segments 202) are also respectively provided with lower U-shaped convex patterns 208 to increase the mechanical strength and aesthetics of the two straight edge ends of the lower arc edge segment 201.

[0040] It should be noted that the number of upper mounting holes 103 and lower mounting holes 203 on each group of upper straight side sections 102 and lower straight side sections 202 is not limited to 3 in the present embodiment. In other embodiments, the number of upper mounting holes 103 and lower mounting holes 203 can be formulated according to actual conditions, such as 4, 5, 6... At the same time, the outer platforms of the upper straight side section 102 with the upper mounting holes 103 and the lower straight side section 202 with the lower mounting holes 203 are respectively provided with edges 600 to enhance the strength between adjacent mounting holes and prevent damage when the upper and lower shells are locked.

[0041] The inner sides of the two groups of lower straight edge sections 202 are respectively provided with lower straight edge receiving grooves 204, and a lower flange 205 is provided at the center of the groove wall located on the outer side of the lower straight edge receiving groove 204; the inner sides of the two arc edge ends of the lower arc edge section 201 are respectively provided with lower arc edge receiving grooves 206, and each end is provided with two groups of lower arc edge receiving grooves 206, and a plurality of lower annular anti-skid gear teeth 207 are respectively arranged in rows on the top surfaces of the groove walls on both sides of the lower arc edge receiving grooves 206 located on the inner side, and the gear cross-section is trapezoidal, and the gear teeth of each row of lower annular anti-skid gear teeth 207 are distributed in an alternating manner at intervals, and the tooth tips face the movement direction when the upper shell 100 of the pipeline repair device and the lower shell 200 of the pipeline repair device are locked.

[0042] See also Figure 6 The sealing gasket 400 includes two groups of parallel corresponding straight edge gaskets 401, two groups of external arc edge gaskets 403 and two groups of internal arc edge gaskets 404 arranged between the two groups of straight edge gaskets 401, wherein the two groups of external arc edge gaskets 403 are respectively located at the two ends of the two groups of straight edge gaskets 401, and the two groups of internal arc edge gaskets 404 are independently arranged on the inner sides of the two groups of external arc edge gaskets 403, and the inner ring radius of the internal arc edge gasket 404 is greater than the inner ring radius of the external arc edge gasket 403; the outer centers of the two groups of straight edge gaskets 401 are respectively provided with card grooves 402 corresponding to the upper flange 105 and the lower flange 205; the two groups of sealing gaskets 400 are respectively embedded and installed on the inner sides of the upper arc edge section 101 and the lower arc edge section 201, and the installation method is the same.

[0043] See also Figure 7 Taking the installation method of the sealing gasket 400 on the inner side of the upper arc edge section 101 as an example, two groups of parallel corresponding straight edge gaskets 401 are respectively embedded in the two groups of upper straight edge receiving grooves 104, and the upper flanges 105 in the upper straight edge receiving grooves 104 are embedded in the slots 402 on the outer sides of the straight edge gaskets 401; two groups of external arc edge gaskets 403 and two groups of internal arc edge gaskets 404 are respectively embedded in the upper arc edge receiving grooves 106; similarly, the installation method of the sealing gasket 400 on the inner side of the lower arc edge section 201 is as follows: two groups of parallel corresponding straight edge gaskets 401 are respectively embedded in the two groups of lower straight edge receiving grooves 204, and the lower flanges 205 in the lower straight edge receiving grooves 204 are embedded in the slots 402 on the outer sides of the straight edge gaskets 401; two groups of external arc edge gaskets 403 and two groups of internal arc edge gaskets 404 are respectively embedded in the lower arc edge receiving grooves 206.

[0044] In detail, the interlocking structure of the slot 402 and the flange (upper flange 105, lower flange 205) is conducive to improving the bonding tightness between the sealing gasket 400 and the arc edge segment (upper arc edge segment 101, lower arc edge segment 201), thereby improving the installation strength. At the same time, it is also conducive to achieving rapid positioning during the installation process, and preventing the sealing gasket 400 from falling off and shifting during the transportation and installation of the repairer, thereby improving the reliability of the product; the outer arc edge pad 403 and the inner arc edge pad 404 at both ends of the rubber pad 400 are two independently arranged arc edge monomers, which can form a de facto double-channel seal; the sum of the widths of the outer arc edge pad 403 and the inner arc edge pad 404 is the same as the existing single-channel arc edge width, that is, the widths of the outer arc edge pad 403 and the inner arc edge pad 404 are reduced and narrowed compared with the existing single-channel arc edge width.

[0045] The inner ring radius of the inner arc edge pad 404 is greater than the inner ring radius of the outer arc edge pad 403, that is, the radial thickness of the inner arc edge pad 404 is less than the radial thickness of the outer arc edge pad 403. The inner ring radius of the inner arc edge pad 404 is set to meet the sealing requirements of the outer diameter of the standard pipe, and the inner ring radius of the outer arc edge pad 403 is set to meet the sealing requirements of the outer diameter of the negative tolerance pipe. When the pipe diameter of the pipe 500 becomes smaller due to the negative tolerance, the outer arc edge pad 403 is suitable for the pipe 500 because of its smaller inner ring radius, that is, its larger thickness. The reduced width and narrowing of the outer arc edge pad 403 is conducive to compression, which can improve the convenience of installation and reduce the pressure-bearing requirements of the pipe 500. At the same time, if the performance of the outer arc edge pad 403 declines due to excessive compression, the inner arc edge pad 404 inside it still retains the normal compression amount and compression performance.

[0046] The internal arc edge pads 404 are respectively embedded in the arc edge receiving grooves (upper arc edge receiving grooves 106 and lower arc edge receiving grooves 206) located on the inner side. Since a plurality of rows of anti-skid gears (upper annular anti-skid gears 107 and lower annular anti-skid gears 207) are respectively provided on the top surfaces of the groove walls on both sides of the inner arc edge receiving grooves, the friction force on the internal arc edge pads 404 can be enhanced, thereby improving the friction force between the sealing pad 400 and the pipeline 500, improving the anti-skid performance, making the combination between the internal arc edge pad 404 and the arc edge receiving grooves closer and firmer, and improving the installation stability of the sealing pad 400 in the pipeline repairer upper shell 100 and the pipeline repairer lower shell 200.

[0047] In the pipeline repair device upper shell 100 and the pipeline repair device lower shell 200, the three upper mounting holes 103 on each group of upper straight edge sections 102 correspond to the three lower mounting holes 203 on each group of lower straight edge sections 202, and the corresponding upper mounting holes 103 and lower mounting holes 203 are connected to form a connecting channel, and a bolt assembly 300 is provided in the connecting through hole.

[0048] See also Figure 8 The bolt assembly 300 includes a matching bolt 301, a gasket 302 and a nut 303, wherein the bolt 301 is formed by connecting a head and a rod, and a body structure is arranged at the connection between the rod and the head. In this embodiment, the body structure is a straight-line ...

[0049] The working principle of the present invention is:

[0050] When using the pipeline repair device of the present invention, the upper housing 100 of the pipeline repair device and the lower housing 200 of the pipeline repair device are correspondingly enclosed on the pipeline 500 to be repaired, so that the pressure relief hole 109 on the upper housing 100 of the pipeline repair device corresponds to the damaged part of the pipeline 500, and then the upper housing 100 of the pipeline repair device and the lower housing 200 of the pipeline repair device are fixedly connected by the bolt assembly 300. During this process, the two sets of sealing gaskets 400 are compressed. Since the inner ring radius of the outer arc edge segment 403 is smaller than the inner ring radius of the inner arc edge segment 404, the outer arc edge segment 403 first contacts and fits the pipeline 500 to generate compression deformation, and then the inner arc edge segment 404 contacts and fits the pipeline 500 to generate compression deformation. Compression deformation is generated, thereby producing a sealing effect; the compression amount of the inner arc edge segment 404 is less than that of the outer arc edge segment 403, so the seal generated is a graded seal; when the pipe diameter of the pipeline 500 becomes smaller due to a negative tolerance, the outer arc edge pad 403 is suitable for the pipeline 500 due to its smaller inner ring radius, that is, its larger thickness, and the reduced and narrowed width of the outer arc edge pad 403 is conducive to compression, which can improve the convenience of installation and reduce the pressure requirements of the pipeline 500 and the pipeline repair device upper shell 100 and the pipeline repair device lower shell 200; at the same time, if the performance of the outer arc edge pad 403 declines due to excessive compression, the inner arc edge pad 404 on its inner side still retains normal compression amount and compression performance.

[0051] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0052] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A pipeline repair device, comprising a Hough type repair device consisting of a pipeline repair device upper shell (100), a pipeline repair device lower shell (200), and a sealing gasket (400), wherein: The sealing gasket (400) is provided with two groups, and the two groups of sealing gaskets (400) are respectively arranged on the inner wall of the upper shell (100) of the pipeline repair device and the lower shell (200) of the pipeline repair device; it is characterized in that the sealing gasket (400) comprises two groups of parallel corresponding straight edge gaskets (401), two groups of external arc edge gaskets (403) arranged between the two groups of straight edge gaskets (401) and two groups of internal arc edge gaskets (404), wherein the two groups of external arc edge gaskets (403) are respectively located between the two groups of straight edge gaskets (401) At both ends of the pipe repair device, two groups of internal arc edge pads (404) are independently arranged on the inner sides of the two groups of external arc edge pads (403), and the inner ring radius of the internal arc edge pads (404) is greater than the inner ring radius of the external arc edge pads (403); the inner sides of the pipe repair device upper shell (100) and the pipe repair device lower shell (200) are respectively provided with receiving grooves for embedding the sealing gasket (400), wherein the top surfaces of the groove walls on both sides of the receiving groove for embedding the internal arc edge pads (404) are provided with a plurality of anti-slip gear teeth.

2. The pipeline repair device according to claim 1, characterized in that: The pipeline repair device upper shell (100) comprises an upper arc edge segment (101) and two groups of upper straight edge segments (102) respectively connected to two straight edge ends of the upper arc edge segment (101); the inner sides of the two arc edge ends of the upper arc edge segment (101) are respectively provided with upper arc edge receiving grooves (106) for embedding an outer arc edge pad (403) and an inner arc edge pad (404); the inner sides of the two groups of upper straight edge segments (102) are respectively provided with upper straight edge receiving grooves (104) for embedding the straight edge pads (401).

3. The pipeline repair device according to claim 2, characterized in that: The pipeline repair device lower shell (200) comprises a lower arc edge section (201) and two groups of lower straight edge sections (202) respectively connected to two straight edge ends of the lower arc edge section (201); the inner sides of the two arc edge ends of the lower arc edge section (201) are respectively provided with lower arc edge receiving grooves (206) for embedding an outer arc edge pad (403) and an inner arc edge pad (404); the inner sides of the two groups of lower straight edge sections (202) are respectively provided with lower straight edge receiving grooves (204) for embedding the straight edge pads (401).

4. The pipeline repair device according to claim 3, characterized in that: A plurality of upper annular anti-skid gear teeth (107) and a lower annular anti-skid gear (207) are arranged in a row on the top surfaces of the groove walls of the upper arc edge receiving groove (106) and the lower arc edge receiving groove (206) for embedding the internal arc edge pad (404), respectively. The cross-section of the gears of the two is trapezoidal. The gear teeth of each row of the upper annular anti-skid gear teeth (107) and the lower annular anti-skid gear (207) are arranged in an alternating manner, and the tooth tips face the movement direction when the upper shell (100) of the pipeline repair device and the lower shell (200) of the pipeline repair device are locked.

5. The pipeline repair device according to claim 3, characterized in that: An upper flange (105) and a lower flange (205) are respectively arranged at the center of the side walls of the upper straight-edge receiving groove (104) and the lower straight-edge receiving groove (204), and a clamping groove (402) which is engaged with the upper flange (105) and the lower flange (205) is arranged on the straight-edge pad (401).

6. The pipeline repair device according to claim 3, characterized in that: The upper straight edge section (102) is provided with a plurality of upper mounting holes (103), the lower straight edge section (202) is provided with a plurality of lower mounting holes (203) corresponding to the upper mounting holes (103) one by one, and the outer platforms of the upper straight edge section (102) provided with the upper mounting holes (103) and the lower straight edge section (202) provided with the lower mounting holes (203) are respectively provided with edges (600); the corresponding upper mounting holes (103) and the lower mounting holes (203) are connected to form a connecting passage, and a bolt assembly (300) is provided in the connecting through hole.

7. The pipeline repair device according to claim 6, characterized in that: The bolt assembly comprises a matching bolt (301), a washer (302) and a nut (303), wherein the bolt (301) is formed by connecting a head and a rod, a falcon body structure is arranged at the connection between the rod and the head, and falcon grooves corresponding to the falcon body are arranged in the upper mounting hole (103) and the lower mounting hole (203).

8. The pipeline repair device according to claim 7, characterized in that: The falcon body structure is a straight-line falcon, and the falcon groove is a straight-line groove corresponding to and matching the straight-line falcon.

9. The pipeline repair device according to claim 3, characterized in that: The pipeline repair device according to claim (1) is characterized in that the outer sides of the two straight side ends of the upper arc edge section (101) and the lower arc edge section (201) are respectively provided with a plurality of upper U-shaped convex patterns (108) and lower U-shaped convex patterns (208).

10. The pipeline repair device according to claim 2, characterized in that: The pipeline repair device according to claim (1) is characterized in that a pressure relief hole (109) extending outward is provided at the center of the upper arc edge segment (101).

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