Pipeline anti-corrosion layer stripping device

By designing the pipeline anti-corrosion layer exploitation device and using the joint pressing components and fixed slide rings, the exploitation efficiency of the steel pipeline anti-corrosion layer is improved, the problem of long exploitation time during the transformation process is solved, and a more efficient welding process is achieved.

CN222201963UActive Publication Date: 2024-12-20MIANZHU HONG KONG & CHINA GAS CO LTD
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Patent Information

Application Number
CN202420891805.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-26
Publication Date
2024-12-20
Estimated Expiration
2034-04-26

AI Technical Summary

Technical Problem

During the transformation of gas pipelines, the exploitation efficiency of anti-corrosion layers of steel pipelines is low and time-consuming, resulting in unstable welding processes and increased user complaints.

Method used

A pipe anti-corrosion layer exploitation device is designed, including a clamping assembly, an exploitation assembly and a fixed slide assembly. The lifting member drives the exploitation knife through the through slot to cooperate with the fixed slide ring to achieve efficient exploitation of the anti-corrosion layer.

Benefits of technology

It improves the exploitation efficiency of anti-corrosion layer, shortens the exploitation time, and solves the problems of low efficiency and long time under traditional manual scrapers and flame removal methods.

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Abstract

The utility model discloses a pipeline anti-corrosion layer stripping device which comprises a clamping and pressing assembly which comprises an upper pressing body and a lower pressing body, one end of the upper pressing body and one end of the lower pressing body are rotationally connected through a pair of rotating pieces, and the other end of the upper pressing body and the other end of the lower pressing body are detachably connected through a pair of buckling pieces; the stripping assembly comprises a stripping knife and a lifting part, the lifting part is arranged on the upper pressing body, the stripping knife is arranged on the lifting part, a penetrating inserting groove matched with the stripping knife is formed in the upper pressing body, the penetrating inserting groove penetrates through the upper pressing body, and the stripping knife can penetrate through the penetrating inserting groove under driving of the lifting part to be used for stripping a pipeline anti-corrosion layer; the fixed slide way assembly comprises a pair of fixed slide way rings, the fixed slide way rings can be fixedly installed on a pipeline, the fixed slide way rings can be sleeved with the upper pressing body and the lower pressing body, the upper pressing body and the lower pressing body are in threaded connection with the fixed slide way rings, and the problems that when an anti-corrosion layer is peeled at present, the peeling efficiency is low, and the peeling time of the anti-corrosion layer is long are solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of pipeline construction, in particular to a pipeline anti-corrosion layer stripping device. Background Art

[0002] Most steel pipelines are used as main pipes. In general, most gas pipelines used in residential construction are steel pipelines. In order to extend the service life of steel pipelines and reduce the corrosion of steel pipelines by external factors, a 3PE anti-corrosion layer is generally set on the outside of the steel pipeline. Three-layer polyethylene anti-corrosion is also called 3PE anti-corrosion. The bottom layer of the three-layer structure is epoxy coating, the middle layer is adhesive, and the outer protective layer is polyethylene.

[0003] Due to the diversity and complexity of gas pipeline construction, sometimes it is necessary to modify the gas pipeline. The modification of gas pipelines generally requires pipeline joints, which need to be completed by welding. However, since the outer side of the steel pipeline is equipped with an anti-corrosion layer, it cannot be directly welded. Therefore, before welding, four processes are usually required: weld marking, anti-corrosion layer stripping, groove grinding, and weld jointing. At present, the two main methods of anti-corrosion layer stripping are manual scraping or flame burning.

[0004] However, these two methods have the problems of low exploitation efficiency and long anti-corrosion layer exploitation time when used, which results in long gas outage time, unstable steel pipeline welding process time and a large number of user complaints during the transformation of gas pipelines. Utility Model Content

[0005] Based on this, in order to solve the above problems, the utility model proposes a pipeline anti-corrosion layer stripping device, which solves the problems of low stripping efficiency and long anti-corrosion layer stripping time that exist in the current anti-corrosion layer stripping.

[0006] The technical solution of the utility model is:

[0007] A pipeline anti-corrosion layer stripping device, comprising:

[0008] The clamping assembly includes an upper pressing body and a lower pressing body, one end of the upper pressing body and the lower pressing body are rotatably connected by a pair of rotating parts, and the other end is detachably connected by a pair of buckles;

[0009] The stripping assembly includes a stripping knife and a lifting member, the lifting member is arranged on the upper pressing body, the stripping knife is arranged on the lifting member, the upper pressing body is provided with a through slot which is matched with the stripping knife, the through slot penetrates the upper pressing body, and the stripping knife can pass through the through slot under the drive of the lifting member to strip the anti-corrosion layer of the pipeline;

[0010] The fixed slide assembly comprises a pair of fixed slide rings, the fixed slide rings can be fixedly installed on the pipeline, the upper pressure body and the lower pressure body can be sleeved on the fixed slide rings and threadedly connected with the fixed slide rings.

[0011] Preferably, the lifting member includes a mounting block and an adjusting threaded rod, the mounting block is provided with a sliding limit groove, the sliding limit groove passes through the bottom of the mounting block, one end of the adjusting threaded rod passes through the top of the mounting block and extends into the sliding limit groove, the adjusting threaded rod is threadedly connected to the mounting block, the exploitation knife is arranged at the end of the adjusting threaded rod located in the sliding limit groove, and the exploitation knife is rotatably connected to the adjusting threaded rod, the exploitation knife is slidably matched with the sliding limit groove, the sliding limit groove is used to limit the rotation of the exploitation knife, and the adjusting threaded rod is used to drive the exploitation knife close to or away from the pipeline.

[0012] Preferably, a mounting groove is provided on the upper pressing body, and fixing blocks are provided on both sides of the mounting block, and the fixing blocks are fixed in the mounting groove by screws.

[0013] Preferably, the through slot is arranged in the installation slot and is arranged in cooperation with the stripping knife. The stripping knife can pass through the through slot under the drive of the adjusting threaded rod to strip the anti-corrosion layer of the pipeline.

[0014] Preferably, a rotating disk for rotating the adjusting threaded rod is provided at an end portion of the adjusting threaded rod located outside the sliding limit groove, and the rotating disk is fixedly connected to the adjusting threaded rod.

[0015] Preferably, the rotating member is a hinge, one end of the rotating member is fixedly connected to the upper pressing body, and the other end of the rotating member is fixedly connected to the lower pressing body.

[0016] Preferably, the fastener includes a snap joint, a rotating connecting seat, a connecting screw, a gasket and a fixing nut. The snap joint is arranged on the lower pressure body, the rotating connecting seat is arranged on the upper pressure body, one end of the connecting screw is rotatably connected to the rotating connecting seat, and the other end is snap-connected with the snap joint. The gasket and the fixing nut are successively arranged at the end portions of one end where the connecting screw and the snap joint are snap-connected. The gasket and the fixing nut can be screwed into the connecting screw and cooperate with the snap joint to fix the connecting screw.

[0017] Preferably, the rotating connection seat includes a pair of connection blocks and a fixed shaft fixedly arranged between the pair of connection blocks, and a rotating sleeve is provided at one end of the connecting screw, and the rotating sleeve is arranged on the fixed shaft and is rotatably connected to the fixed shaft.

[0018] Preferably, at least one force member is provided on the clamping assembly, and the force member includes a mounting tube and a force rod, one end of the mounting tube is fixedly connected to the clamping assembly, and the other end is threadedly connected to one end of the force rod, and the force rod can be screwed into the mounting tube and fixedly installed on the clamping assembly.

[0019] Preferably, the fixed slide ring comprises an upper ring body and a lower ring body, and the upper ring body and the lower ring body are detachably connected on both sides by bolts.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] The utility model pre-fixes and installs a pair of fixed slide rings on the pipeline, then sets the upper pressure body and the lower pressure body on the pair of fixed slide rings, and then fixes them through the snap fasteners, so that the clamping assembly is matched with the fixed slide rings, and then the stripping knife is driven through the through slot by the lifting member to form a match with the pipeline, and then the clamping assembly is rotated, and the stripping of the pipeline anti-corrosion layer can be completed by the stripping knife. Compared with the traditional manual scraper or flame burning, the utility model can more easily complete the stripping of the pipeline anti-corrosion layer, which is conducive to improving the stripping efficiency of the pipeline anti-corrosion layer and reducing the stripping time of the anti-corrosion layer, and solves the current problems of low stripping efficiency and long stripping time of the anti-corrosion layer when stripping the anti-corrosion layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of a pipeline anti-corrosion layer stripping device described in an embodiment of the utility model. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the structure of a pipeline anti-corrosion layer stripping device described in an embodiment of the utility model. Figure 2 ;

[0024] Figure 3 It is described in the embodiment of the utility model Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 4 It is a schematic diagram of the structure of the exploitation component described in the embodiment of the utility model;

[0026] Figure 5 It is a structural schematic diagram of the fixed slide ring described in the embodiment of the utility model;

[0027] Figure 6 The structure diagram of the upper pressure body and the lower pressure body described in the embodiment of the utility model is shown in FIG. Figure 1 ;

[0028] Figure 7 The structure diagram of the upper pressure body and the lower pressure body described in the embodiment of the utility model is shown in FIG. Figure 2 ;

[0029] Description of reference numerals:

[0030] 10-pressing assembly, 100-upper pressure body, 101-lower pressure body, 102-rotating member, 103-fastener, 104-through slot, 105-mounting slot, 106-card joint, 107-rotating connection seat, 108-connecting screw, 109-gasket, 110-fixing nut, 111-connecting block, 112-fixed shaft, 113-rotating sleeve, 114-force member, 115-mounting tube, 11 6-force rod, 117-blocking ring, 118-upper block ring, 119-lower block ring, 120-anti-slip sleeve, 20-exploitation assembly, 200-exploitation knife, 201-lifting piece, 202-mounting block, 203-adjusting threaded rod, 204-slide limit groove, 205-fixed block, 206-rotating disk, 30-fixed slide assembly, 300-fixed slide ring, 301-upper ring body, 302-lower ring body. DETAILED DESCRIPTION

[0031] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0032] Example:

[0033] like Figure 1 to Figure 2 As shown, in order to solve the above problems, this embodiment discloses a pipeline anti-corrosion layer stripping device, comprising:

[0034] The pressing assembly 10 includes an upper pressing body 100 and a lower pressing body 101. One end of the upper pressing body 100 and the lower pressing body 101 are rotatably connected by a pair of rotating members 102, and the other end is detachably connected by a pair of buckles 103;

[0035] The stripping assembly 20 includes a stripping knife 200 and a lifting member 201. The lifting member 201 is arranged on the upper pressing body 100. The stripping knife 200 is arranged on the lifting member 201. The upper pressing body 100 is provided with a through slot 104 which is matched with the stripping knife 200. The through slot 104 penetrates the upper pressing body 100. The stripping knife 200 can pass through the through slot 104 under the drive of the lifting member 201 to strip the anti-corrosion layer of the pipeline.

[0036] The fixed slide assembly 30 includes a pair of fixed slide rings 300 . The fixed slide rings 300 can be fixedly installed on the pipeline. The upper pressure body 100 and the lower pressure body 101 can be sleeved on the fixed slide rings 300 and threadedly connected to the fixed slide rings 300 .

[0037] The utility model pre-fixes and installs a pair of fixed slide rings 300 on the pipeline, then sets the upper pressure body 100 and the lower pressure body 101 on the pair of fixed slide rings 300, and then fixes them through the snap fastener 103, so that the clamping assembly 10 is matched with the fixed slide ring 300, and then the stripping knife 200 is driven through the through slot 104 by the lifting member 201 to form a match with the pipeline, and then the clamping assembly 10 is rotated, and the stripping of the pipeline anti-corrosion layer can be completed by the stripping knife 200. Compared with the traditional manual scraper or flame burning, the utility model can more easily complete the stripping of the pipeline anti-corrosion layer, which is conducive to improving the stripping efficiency of the pipeline anti-corrosion layer and reducing the stripping time of the anti-corrosion layer, and solves the problems of low stripping efficiency and long stripping time of the anti-corrosion layer when stripping the anti-corrosion layer.

[0038] like Figure 4 As shown, in order to facilitate the adjustment of the height of the exploitation knife 200 so as to adapt to the anti-corrosion layer of different thicknesses on the steel pipeline, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that the lifting member 201 includes a mounting block 202 and an adjusting threaded rod 203. The mounting block 202 is provided with a sliding limit groove 204. The sliding limit groove 204 passes through the bottom of the mounting block 202. One end of the adjusting threaded rod 203 passes through the top of the mounting block 202 and extends into the sliding limit groove 204. The adjusting threaded rod 203 is threadedly connected to the mounting block 202. The exploitation knife 200 is arranged at the end of the adjusting threaded rod 203 located in the sliding limit groove 204, and the exploitation knife 200 is rotatably connected to the adjusting threaded rod 203. The exploitation knife 200 slides with the sliding limit groove 204. The sliding limit groove 204 is used to limit the rotation of the exploitation knife 200. The adjusting threaded rod 203 is used to drive the exploitation knife 200 to approach or move away from the pipeline.

[0039] When in use, the adjusting threaded rod 203 is driven to drive the stripping knife 200 to move closer to or away from the pipe, thereby adjusting the height of the stripping knife 200, so as to adapt to the anti-corrosion layer of different thicknesses on the steel pipe. The sliding limit groove 204 is used to limit the stripping knife 200 to rotate with the adjusting threaded rod 203.

[0040] like Figure 6 As shown, in order to facilitate the installation of the lifting member 201, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that an installation groove 105 is provided on the upper pressure body 100, and fixing blocks 205 are provided on both sides of the installation block 202. The fixing blocks 205 are fixed in the installation groove 105 by screws.

[0041] Preferably, the through slot 104 is disposed in the mounting slot 105 and is provided in cooperation with the stripping knife 200 . The stripping knife 200 can pass through the through slot 104 under the drive of the adjusting threaded rod 203 to strip the anti-corrosion layer of the pipeline.

[0042] In order to facilitate the rotation of the adjusting threaded rod 203, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that a rotating disk 206 for rotating the adjusting threaded rod 203 is provided at the end of the adjusting threaded rod 203 located outside the sliding limit groove 204, and the rotating disk 206 is fixedly connected to the adjusting threaded rod 203.

[0043] When in use, an operator can manually drive the rotating disk 206 to rotate, thereby rotating the adjusting threaded rod 203 .

[0044] In order to facilitate the installation of the upper pressure body 100 and the lower pressure body 101, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that the rotating member 102 is a hinge, one end of the rotating member 102 is fixedly connected to the upper pressure body 100, and the other end is fixedly connected to the lower pressure body 101.

[0045] like Figure 3 As shown, preferably, the fastener 103 includes a snap joint 106, a rotating connecting seat 107, a connecting screw 108, a gasket 109 and a fixing nut 110, the snap joint 106 is arranged on the lower pressure body 101, the rotating connecting seat 107 is arranged on the upper pressure body 100, one end of the connecting screw 108 is rotatably connected to the rotating connecting seat 107, and the other end is snap-connected with the snap joint 106, the gasket 109 and the fixing nut 110 are successively arranged at the end of the connecting screw 108 and the snap joint 106 at one end, the gasket 109 and the fixing nut 110 can be screwed into the connecting screw 108 to cooperate with the snap joint 106, and are used to fix the connecting screw 108.

[0046] Preferably, the rotating connection seat 107 includes a pair of connection blocks 111 and a fixed shaft 112 fixedly arranged between the pair of connection blocks 111, and a rotating sleeve 113 is provided at one end of the connecting screw 108. The rotating sleeve 113 is arranged on the fixed shaft 112 and is rotatably connected to the fixed shaft 112.

[0047] When in use, one end of the upper pressing body 100 is rotatably connected by a rotating piece 102, and the other end is detachably connected by a snap-fit ​​piece 103, so that one end of the upper pressing body 100 and the lower pressing body 101 can be opened and the other end can be rotated, thereby facilitating the installation of the upper pressing body 100 and the lower pressing body 101 and helping to reduce the loss of exploitation time.

[0048] like Figure 2As shown, in order to facilitate the stripping of the pipeline anti-corrosion layer, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that at least one force member 114 is provided on the clamping assembly 10, and the force member 114 includes a mounting tube 115 and a force rod 116. One end of the mounting tube 115 is fixedly connected to the clamping assembly 10, and the other end is threadedly connected to one end of the force rod 116. The force rod 116 can be screwed into the mounting tube 115 and fixedly installed on the clamping assembly 10.

[0049] When in use, a force member 114 is provided, and the operator only needs to apply external force to the force rod 116 in the force member 114 to rotate the clamping assembly 10, thereby completing the stripping of the pipeline anti-corrosion layer. One end of the force rod 116 is threadedly connected to the installation pipe 115, which facilitates the installation and removal of the force rod 116.

[0050] In another embodiment, two force members 114 are provided on the pressing assembly 10 , wherein one force member 114 is disposed on the upper pressing body 100 , and the other is disposed on the lower pressing body 101 , and the two force members 114 are disposed in coordination.

[0051] Preferably, the force member 114 includes a mounting tube 115 and a force rod 116, wherein one end of the mounting tube 115 in one of the force members 114 is fixedly connected to one side of the upper pressure body 100, and the other end is threadedly connected to one end of the force rod 116, and the force rod 116 can be screwed into the mounting tube 115 and fixedly installed on the upper pressure body 100, and one end of the mounting tube 115 in the other force member 114 is fixedly connected to one side of the lower pressure body 101, and the other end is threadedly connected to one end of the force rod 116, and the force rod 116 can be screwed into the mounting tube 115 and fixedly installed on the upper pressure body 100.

[0052] When in use, two force members 114 are provided, and the operator can operate the two force members 114 to make the clamping assembly 10 rotate better, thereby making the stripping knife 200 better strip the pipeline anti-corrosion layer.

[0053] Preferably, an anti-skid sleeve 120 is provided at the other end of the force adding rod 116, and the anti-skid sleeve 120 is sleeved on the force adding rod 116 for anti-skid.

[0054] like Figure 5 As shown, in order to facilitate the installation of the fixed slide ring 300, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that the fixed slide ring 300 includes an upper ring body 301 and a lower ring body 302, and the upper ring body 301 and the lower ring body 302 are detachably connected on both sides by bolts.

[0055] When in use, the upper ring body 301 and the lower ring body 302 are detachably connected on both sides by bolts, so that the upper ring body 301 and the lower ring body 302 can be quickly fixed on the pipeline, and the position of the upper ring body 301 and the lower ring body 302 on the pipeline can be moved by loosening the bolts.

[0056] like Figure 7 As shown, preferably, a blocking ring 117 is provided on the inner wall of the upper pressure body 100 and the lower pressure body 101, and the blocking ring 117 includes an upper blocking ring 118 and a lower blocking ring 119. The upper blocking ring 118 is arranged in the middle of the inner wall of the upper pressure body 100, and the lower blocking ring 119 is arranged in the middle of the inner wall of the lower pressure body 101.

[0057] When in use, the setting of the blocking ring 117 can effectively solve the problem of the upper pressing body 100 and the lower pressing body 101 being separated from the fixed slide ring 300 when rotating.

[0058] Working principle of this utility model:

[0059] The utility model pre-fixes and installs a pair of fixed slide rings 300 on the pipeline, then sets the upper pressure body 100 and the lower pressure body 101 on the pair of fixed slide rings 300, and then fixes them through the buckle 103, so that the clamping assembly 10 is matched with the fixed slide ring 300, and then drives the stripping knife 200 through the through slot 104 to match the pipeline through the lifting member 201, and then rotates the clamping assembly 10, and the stripping of the pipeline anti-corrosion layer can be completed by the stripping knife 200. Compared with traditional manual scraping or flame burning, the utility model can more easily complete the stripping of the pipeline anti-corrosion layer, which is conducive to improving the stripping efficiency of the pipeline anti-corrosion layer and reducing the stripping time of the anti-corrosion layer.

[0060] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A pipeline anti-corrosion layer stripping device, characterized in that: include: A pressing assembly (10), the pressing assembly (10) comprising an upper pressing body (100) and a lower pressing body (101), one end of the upper pressing body (100) and the lower pressing body (101) being rotatably connected via a pair of rotating members (102), and the other end of the upper pressing body (100) and the lower pressing body (101) being detachably connected via a pair of buckle members (103); The stripping assembly (20) comprises a stripping knife (200) and a lifting member (201), wherein the lifting member (201) is arranged on an upper pressing body (100), the stripping knife (200) is arranged on the lifting member (201), the upper pressing body (100) is provided with a through slot (104) which is arranged in cooperation with the stripping knife (200), the through slot (104) penetrates the upper pressing body (100), and the stripping knife (200) can pass through the through slot (104) under the drive of the lifting member (201) to strip the anti-corrosion layer of the pipeline; The fixed slide assembly (30) comprises a pair of fixed slide rings (300). The fixed slide rings (300) can be fixedly installed on the pipeline. The upper pressure body (100) and the lower pressure body (101) can be sleeved on the fixed slide rings (300) and threadedly connected to the fixed slide rings (300).

2. A pipeline anti-corrosion layer stripping device according to claim 1, characterized in that: The lifting member (201) comprises a mounting block (202) and an adjusting threaded rod (203); a sliding limit groove (204) is provided on the mounting block (202); the sliding limit groove (204) passes through the bottom of the mounting block (202); one end of the adjusting threaded rod (203) passes through the top of the mounting block (202) and extends into the sliding limit groove (204); the adjusting threaded rod (203) is threadedly connected to the mounting block (202); the exploitation knife (200) is arranged at an end of the adjusting threaded rod (203) located in the sliding limit groove (204); the exploitation knife (200) is rotatably connected to the adjusting threaded rod (203); the exploitation knife (200) and the sliding limit groove (204) are slidably matched; the sliding limit groove (204) is used to limit the rotation of the exploitation knife (200); and the adjusting threaded rod (203) is used to drive the exploitation knife (200) to approach or move away from the pipeline.

3. A pipeline anti-corrosion layer stripping device according to claim 2, characterized in that: The upper pressing body (100) is provided with a mounting groove (105), and fixing blocks (205) are provided on both sides of the mounting block (202). The fixing blocks (205) are fixedly mounted in the mounting groove (105) by means of screws.

4. A pipeline anti-corrosion layer stripping device according to claim 3, characterized in that: The through slot (104) is arranged in the installation slot (105) and is arranged in cooperation with the stripping knife (200). The stripping knife (200) can pass through the through slot (104) under the drive of the adjusting threaded rod (203) to strip the anti-corrosion layer of the pipeline.

5. A pipeline anti-corrosion layer stripping device according to claim 4, characterized in that: A rotating disk (206) for rotating the adjusting threaded rod (203) is provided at an end portion of the adjusting threaded rod (203) located outside the sliding limit groove (204), and the rotating disk (206) is fixedly connected to the adjusting threaded rod (203).

6. A pipeline anti-corrosion layer stripping device according to claim 1, characterized in that: The rotating member (102) is a hinge, one end of the rotating member (102) is fixedly connected to the upper pressing body (100), and the other end of the rotating member (102) is fixedly connected to the lower pressing body (101).

7. The pipeline anti-corrosion layer stripping device according to claim 1 is characterized in that: The fastener (103) comprises a fastening joint (106), a rotating connection seat (107), a connecting screw (108), a gasket (109) and a fixing nut (110); the fastening joint (106) is arranged on the lower pressing body (101); the rotating connection seat (107) is arranged on the upper pressing body (100); one end of the connecting screw (108) is rotatably connected to the rotating connection seat (107), and the other end is fastened to the fastening joint (106); the gasket (109) and the fixing nut (110) are arranged in sequence at the end of the connecting screw (108) and one end of the fastening joint (106); the gasket (109) and the fixing nut (110) can be screwed into the connecting screw (108) and matched with the fastening joint (106) to fix the connecting screw (108).

8. A pipeline anti-corrosion layer stripping device according to claim 7, characterized in that: The rotating connection seat (107) comprises a pair of connection blocks (111) and a fixed shaft (112) fixedly arranged between the pair of connection blocks (111); a rotating sleeve (113) is arranged at one end of the connecting screw rod (108); the rotating sleeve (113) is arranged on the fixed shaft (112) and is rotationally connected to the fixed shaft (112).

9. The pipeline anti-corrosion layer stripping device according to claim 1 is characterized in that: At least one force member (114) is provided on the pressing assembly (10). The force member (114) comprises a mounting tube (115) and a force rod (116). One end of the mounting tube (115) is fixedly connected to the pressing assembly (10), and the other end is threadedly connected to one end of the force rod (116). The force rod (116) can be screwed into the mounting tube (115) and fixedly mounted on the pressing assembly (10).

10. The pipeline anti-corrosion layer stripping device according to claim 1, characterized in that: The fixed slide ring (300) comprises an upper ring body (301) and a lower ring body (302), and the upper ring body (301) and the lower ring body (302) are detachably connected at both sides by bolts.