A circulating type pipe outer wall shot blasting rust and slag removing device

Abstract

The application discloses a circulating type pipe outer wall shot blasting rust and slag removing device and belongs to the technical field of metal pipe surface treatment equipment, which comprises a shot blasting box, a shot blasting circulating assembly and a connecting assembly. The shot blasting box comprises a shot blasting sealing box and a shot blasting sealing cover. The shot blasting sealing cover has an inner end and an outer end. The outer end surface of the shot blasting sealing cover is connected with the inner side surface of the shot blasting sealing box. The inner end surface of the shot blasting sealing cover is in dynamic sealing fit with the outer wall of the pipe. The shot blasting emission port and the shot blasting recovery port of the shot blasting circulating assembly are both in communication with the interior of the shot blasting sealing cover. The connecting assembly is connected with the shot blasting box and clamped on the pipe. The shot blasting sealing cover is clamped on the outer wall of the pipe through the connecting assembly. Shot blasting is sprayed into the shot blasting sealing cover through the shot blasting circulating assembly, so that the weld and the surrounding surface in the shot blasting sealing cover are rust and slag removed.

Description

Technical Field

[0001] This invention relates to the field of metal pipe surface treatment equipment technology, specifically to a circulating pipe external wall shot blasting rust removal and slag removal device. Background Technology

[0002] Pipeline transportation, as one of the world's five major modes of transport, is the safest and most stable. However, the primary method of pipeline connection is welding. Pipelines stretching tens of thousands of kilometers are welded together section by section. After welding, weld slag remains at the weld seams. The area around the weld seams also requires surface treatment due to the need for plastic coating. The purpose of surface treatment is to remove rust, dirt, and scale from the metal pipe surface, ensuring better adhesion between the anti-corrosion coating and the steel surface. This is a key factor determining the service life of pipeline corrosion protection and a prerequisite for a firm bond between the anti-corrosion layer and the steel pipe.

[0003] Therefore, it is necessary to design a device that can perform surface treatment on the weld seams of the outer wall of the pipeline and its surroundings, thoroughly remove rust, scale and dirt, adapt to field operations and be environmentally friendly.

[0004] Currently, most methods for removing rust and slag from the outer wall of pipes rely on manual grinding with grinding wheels or files. This method is inefficient, and the quality of rust removal is subject to human control, resulting in omissions and uneven surface cleanliness.

[0005] Although there are automatic rust and slag removal devices for the outer walls of pipelines in China, these devices are generally fixed, bulky, inconvenient to operate, and unsuitable for field operations. Moreover, they generally require the workpiece to be rotated or moved, and are carried out by grinding or scraping with blades, which causes varying degrees of damage to the pipeline. Furthermore, the blades and grinding wheels wear out easily and need to be replaced frequently.

[0006] Furthermore, a small number of people manually operate handheld sandblasting devices, and the dust pollution generated during the sandblasting process is severe. The area within 5 to 10 meters of the rust removal site is filled with quartz sand dust, which seriously pollutes the environment. Workers are completely covered by dust, and if they are not properly protected, it may cause injury to their bodies. Summary of the Invention

[0007] The technical problem to be solved by this invention is that the efficiency and effect of rust and slag removal at pipeline welds are low. The purpose is to provide a circulating pipeline external wall shot blasting rust and slag removal device, which solves the problems of rust and slag removal and working environment at pipeline welds.

[0008] This invention is achieved through the following technical solution:

[0009] A circulating pipe external wall shot blasting rust removal and slag removal device includes:

[0010] Shot peening box, which includes:

[0011] The upper cavity of the shot peening box has an outer surface and an inner surface;

[0012] The shot peening sealing cover is a frame with openings at both ends. The shot peening sealing cover has an inner end and an outer end. The outer end face of the shot peening sealing cover is connected to the inner side of the upper cavity of the shot peening box, and the inner end face of the shot peening sealing cover is dynamically sealed to the outer wall of the pipe.

[0013] A shot peening circulation assembly has a shot peening outlet and a shot peening recovery outlet, both of which are connected to the interior of the shot peening sealing cover.

[0014] A connecting assembly that is connected to the shot peening box and clamped onto the pipe.

[0015] Specifically, the upper cavity of the shot peening box includes:

[0016] An arched base plate having a first side and a second side parallel to the central axis of the pipe, wherein the shot peening seal is connected to the inner side of the arched base plate;

[0017] The top cover plate has a first side and a second side parallel to the central axis of the pipe, and is disposed on the outside of the arched bottom plate;

[0018] The first side plate has an outer side and an inner side. The outer side of the first side plate is fixedly connected to the first side of the upper cover plate, and the inner side of the first side plate is fixedly connected to the first side of the arched bottom plate.

[0019] The second side plate has an outer side and an inner side. The outer side of the second side plate is fixedly connected to the second side of the upper cover plate, and the inner side of the second side plate is fixedly connected to the second side of the arched bottom plate.

[0020] Specifically, the shot peening sealing cover includes:

[0021] A first arc-shaped cover plate is arranged radially along the pipe, the outer arc edge of the first arc-shaped cover plate is connected to the inner side of the arched bottom plate, and the inner arc edge of the first arc-shaped cover plate is in contact with the outer wall of the pipe.

[0022] The second arc-shaped cover plate is arranged parallel to the first arc-shaped cover plate. The outer arc edge of the second arc-shaped cover plate is connected to the inner side of the arched bottom plate, and the inner arc edge of the second arc-shaped cover plate is in contact with the outer wall of the pipe.

[0023] A first cover plate is arranged along the axial direction of the pipe, and the two ends of the first cover plate are fixedly connected to the first arc-shaped cover plate and the second arc-shaped cover plate respectively. The outer side of the first cover plate is connected to the inner side of the arched bottom plate, and the inner side of the first cover plate is in contact with the outer wall of the pipe.

[0024] The second cover plate is arranged parallel to the first cover plate, and its two ends are fixedly connected to the first arc-shaped cover plate and the second arc-shaped cover plate respectively. The outer edge of the second cover plate is connected to the inner side of the arched bottom plate, and the inner edge of the second cover plate is in contact with the outer wall of the pipe.

[0025] Preferably, the first arc-shaped cover plate, the second arc-shaped cover plate, the first cover plate, and the second cover plate are rubber plates, and the shot peening sealing cover is integrally formed.

[0026] Specifically, the shot peening circulation assembly includes:

[0027] A shot peening gun is mounted between the arched base plate and the upper cover plate, with its firing port passing through the arched base plate and located inside the shot peening sealing cover.

[0028] A shot peening recovery port is installed between the arched base plate and the upper cover plate, and the shot inlet of the shot peening recovery port passes through the arched base plate and is disposed inside the shot peening sealing cover;

[0029] The shot peening gun is located inside the first side plate, and the shot peening recovery port is located inside the second side plate.

[0030] A shot peening launcher, which is connected to the shot peening gun via a shot peening launch tube connected to the shot peening launch port;

[0031] The shot peening recovery machine is connected to the shot peening recovery port via a shot peening recovery pipe connected to the shot peening recovery connection port.

[0032] Specifically, the upper cavity of the shot peening box is configured to have a first end and a second end, and the line connecting the first end and the second end of the upper cavity of the shot peening box is parallel to the axis of the pipe;

[0033] The connection component includes:

[0034] The first gripper assembly is disposed on the first end face of the upper cavity of the shot peening box;

[0035] The second gripper assembly is disposed on the second end face of the upper cavity of the shot peening box;

[0036] The first gripper assembly / the second gripper assembly includes:

[0037] The first gripper has a first end and a second end, and the first end of the first gripper is rotatably connected to the upper cavity of the shot peening box.

[0038] The second gripper has a first end and a second end, and the first end of the second gripper is rotatably connected to the upper cavity of the shot peening box.

[0039] A movable roller is connected to the second end of the first gripper / second gripper, and the movable roller can roll circumferentially along the outer wall of the pipe;

[0040] A tension spring, with its two ends connected to the first gripper and the second gripper respectively, applies a force toward the pipe to the first gripper and the second gripper.

[0041] Preferably, the plane containing the first and second grippers coincides with the axis of the pipe, and the pipe is located between the first and second grippers.

[0042] Furthermore, the connection component also includes:

[0043] The first connecting rod has its two ends fixedly connected to the second end of the first jaw of the first jaw assembly and the second end of the first jaw of the second jaw assembly, respectively.

[0044] The second connecting rod has its two ends fixedly connected to the second end of the second jaw of the first jaw assembly and the second end of the second jaw of the second jaw assembly, respectively.

[0045] As one embodiment, the first gripper / second gripper includes:

[0046] A support link, the first end of which is rotatably connected to the upper cavity of the shot peening box, the first end of which is the first end of the first gripper / second gripper;

[0047] An arc-shaped connecting rod, the first end of which is rotatably connected to the second end of the supporting connecting rod, wherein the second end of the arc-shaped connecting rod is the second end of the first gripper / the second gripper;

[0048] A connecting baffle has a first end and a second end. The first end of the connecting baffle is fixedly connected to the outer side of the first end of the arc-shaped connecting rod, and the second end of the connecting baffle is in contact with the outer side of the second end of the supporting connecting rod.

[0049] The diameter of the arc-shaped connecting rod is equal to the outer diameter of the pipe, and the two ends of the tension spring are respectively connected to the support connecting rod.

[0050] Furthermore, a handle is fixedly provided on the outer side of the upper cover plate, the shot peening firing connection port and the shot peening recovery connection port are provided on the first side plate, and a shot peening recovery port cover plate for operating the shot peening recovery port is provided on the second side plate.

[0051] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0052] This invention involves setting up a shot peening sealing cover and attaching it to the outer wall of a pipe via a connecting assembly. Then, shot is blasted into the shot peening sealing cover through a shot peening circulation assembly to remove rust and slag from the welds located within the sealing cover. Different slag and rust removal functions can be achieved by controlling the shot peening speed, diameter, density, and material. It does not damage the outer wall of the pipe and can be simultaneously recycled and reused. Since the shot peening rust removal process is carried out in a sealed environment, it does not pollute the environment. Attached Figure Description

[0053] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the principles of the invention. These drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, but do not constitute a limitation on the embodiments of the present invention.

[0054] Figure 1 This is a schematic diagram of a circulating pipe external wall shot blasting rust removal and slag removal device according to the present invention.

[0055] Figure 2 This is a schematic diagram of the upper cavity of the shot peening box according to the present invention.

[0056] Figure 3 This is a schematic diagram of the upper cavity of the shot peening box according to the present invention from a lower side view.

[0057] Figure 4 This is a schematic diagram of the structure of the first gripper assembly / second gripper assembly of the connecting component according to the present invention.

[0058] Reference numerals: 1-arched base plate, 2-top cover plate, 3-second side, 4-first side plate, 5-first arc-shaped cover plate, 6-second arc-shaped cover plate, 7-first cover plate, 8-second cover plate, 9-shot peening firing port, 10-shot peening recovery port, 11-first gripper, 12-second gripper, 13-movable roller, 14-tension spring, 15-first connecting rod, 16-second connecting rod, 17-supporting connecting rod, 18-arc connecting rod, 19-connecting baffle, 20-handle, 21-shot peening firing machine, 22-shot peening recovery machine, 23-shot peening firing tube, 24-shot peening recovery tube, 100-shot peening. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0060] It should also be noted that, for ease of description, only the parts relevant to the present invention are shown in the accompanying drawings.

[0061] Where there is no conflict, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0062] The research and application technology of automatic rust and slag removal machines in China is not yet perfect. The development of equipment that can effectively remove slag or rust from welds is still immature. Most devices need to be installed in fixed working locations and cannot solve the problem of treating welds or surrounding rust after on-site pipeline welding. Therefore, the above-mentioned equipment has many shortcomings in treating weld slag and surrounding rust.

[0063] The device provided by this invention can be clipped onto the outer wall of a pipe and attached to it, rotating along the pipe for construction operations. It is reliable and easy to operate.

[0064] Example 1

[0065] like Figure 1 As shown in the figure, this embodiment provides a circulating pipe external wall shot blasting rust removal and slag removal device, including a shot blasting box, a shot blasting circulation component and a connecting component. The connecting component is connected to the shot blasting box and clamped on the pipe.

[0066] The shot peening box has one side removed. After the shot peening box is attached to the outer wall of the pipe by the connecting assembly, a sealed cavity is formed, and the shot peening 100 is placed in the cavity.

[0067] The shot peening box is attached to the outer wall of the pipe by connecting components. Then, shot peening 100 is sprayed into the shot peening box by shot peening circulation components. The weld joint between shot peening 100 and the pipe is descaled and derusted, reducing damage to the outer wall.

[0068] The shot peening box includes the upper chamber of the shot peening box and the shot peening sealing cover.

[0069] For ease of description, the upper cavity of the shot peening box is set to have an outer side and an inner side, and the shot peening sealing cover has an inner end and an outer end, with the inner side being the side closer to the pipe and the outer side being the side farther away from the pipe, and this orientation is used in all the following embodiments.

[0070] The shot peening sealing cover is a frame with openings at both ends. The outer end face of the shot peening sealing cover is connected to the inner side of the upper cavity of the shot peening box, and the inner end face of the shot peening sealing cover is dynamically sealed to the outer wall of the pipe. That is, the shot peening sealing cover, the outer wall of the pipe and the upper cavity of the shot peening box form a sealed cavity for placing the shot peening 100.

[0071] The shot peening circulation assembly has a shot peening launching port and a shot peening recovery port, both of which are connected to the interior of the shot peening sealing cover. Shot 100 is launched into the shot peening sealing cover through the shot peening launching port to treat the outer wall of the pipeline, and then the shot 100 is recovered through the shot peening recovery port to achieve recycling.

[0072] Example 2

[0073] like Figure 2 As shown, the upper cavity of the shot peening box includes an arched bottom plate 1, an upper cover plate 2, a first side plate 4, and a second side plate. It can be a one-piece molded structure or the above four plates can be welded together.

[0074] For ease of description, the arched bottom plate 1 is defined as having a first side and a second side 3 parallel to the central axis of the pipe, the upper cover plate 2 has a first side and a second side 3 parallel to the central axis of the pipe, the first side plate 4 has an outer side and an inner side, the second side plate has an outer side and an inner side, the upper cavity of the shot peening box has a first end and a second end, and the line connecting the first end and the second end of the upper cavity of the shot peening box is parallel to the axis of the pipe.

[0075] The shot peening sealing cover is connected to the inner side of the arched base plate 1, and the shot peening sealing cover, the arched base plate 1 and the side wall of the pipe form a sealed cavity.

[0076] The upper cover plate 2 is located on the outside of the arched bottom plate 1, and there is a gap between the upper cover plate 2 and the arched bottom plate 1.

[0077] The outer side of the first side plate 4 is fixedly connected to the first side of the upper cover plate 2, the inner side of the first side plate 4 is fixedly connected to the first side of the arched bottom plate 1, the outer side of the second side plate is fixedly connected to the second side 3 of the upper cover plate 2, and the inner side of the second side plate is fixedly connected to the second side 3 of the arched bottom plate 1.

[0078] That is, the two ends of the first side plate 4 are the first end and the second end of the upper cavity of the shot peening box, respectively, and the two ends of the second side plate are the first end and the second end of the upper cavity of the shot peening box, respectively. The first end and the second end of the upper cavity of the shot peening box can be sealed as needed.

[0079] Example 3

[0080] As shown in Figure 3, the shot peening sealing cover in this embodiment includes a first arc-shaped cover plate 5, a second arc-shaped cover plate 6, a first cover plate 7, and a second cover plate 8. In order to form a sealed environment, the first arc-shaped cover plate 5, the second arc-shaped cover plate 6, the first cover plate 7, and the second cover plate 8 in this embodiment are rubber plates, and the shot peening sealing cover is integrally formed.

[0081] The first arc-shaped cover plate 5 is arranged radially along the pipe. The outer arc edge of the first arc-shaped cover plate 5 is connected to the inner side of the arched bottom plate 1, and the inner arc edge of the first arc-shaped cover plate 5 is in contact with the outer wall of the pipe.

[0082] The second arc-shaped cover plate 6 is arranged parallel to the first arc-shaped cover plate 5. The outer arc edge of the second arc-shaped cover plate 6 is connected to the inner side of the arched bottom plate 1, and the inner arc edge of the second arc-shaped cover plate 6 is in contact with the outer wall of the pipe.

[0083] The first cover plate 7 is arranged along the axial direction of the pipe, and the two ends of the first cover plate 7 are fixedly connected to the first arc-shaped cover plate 5 and the second arc-shaped cover plate 6 respectively. The outer side of the first cover plate 7 is connected to the inner side of the arched bottom plate 1, and the inner side of the first cover plate 7 is in contact with the outer wall of the pipe.

[0084] The second cover plate 8 is arranged parallel to the first cover plate 7, and the two ends of the second cover plate 8 are fixedly connected to the first arc-shaped cover plate 5 and the second arc-shaped cover plate 6 respectively. The outer side of the second cover plate 8 is connected to the inner side of the arched bottom plate 1, and the inner side of the second cover plate 8 is in contact with the outer wall of the pipe.

[0085] The first arc-shaped cover plate 5, the second arc-shaped cover plate 6, the first cover plate 7, and the second cover plate 8 are connected end to end to form a ring structure. In this embodiment, a rectangular frame structure is adopted, and the shot peening 100 is placed inside the rectangular frame.

[0086] The lower opening of the shot blasting sealing cover is combined with the outer wall of the pipe being treated to form a relatively good sealing condition, which can ensure that the shot blasting 100% does not splash everywhere during the slag and rust removal process.

[0087] Example 4

[0088] This embodiment provides a shot peening circulation assembly, which includes a shot peening gun, a shot peening recovery port, a shot peening launcher 21, and a shot peening recovery machine 22.

[0089] The shot peening launcher 21 and the shot peening recovery machine 22 are existing devices at this stage and do not need to be described.

[0090] The shot peening gun is installed between the arched base plate 1 and the upper cover plate 2, and the firing port of the shot peening gun passes through the arched base plate 1 and is located inside the shot peening sealing cover. The shot peening recovery port is installed between the arched base plate 1 and the upper cover plate 2, and the shot inlet of the shot peening recovery port passes through the arched base plate 1 and is located inside the shot peening sealing cover.

[0091] The shot peening gun is located inside the first side plate 4, and the shot peening recovery port is located inside the second side plate. The shot peening gun and the shot peening recovery port are arranged opposite each other to facilitate the movement of the shot peening 100 within the shot peening sealing cover, thereby treating the outer wall of the pipes within the entire shot peening sealing cover.

[0092] Furthermore, the shot peening launcher 21 is connected to the shot peening launch tube 23 and the shot peening gun through the shot peening launch connection port 9; and the shot peening recovery machine 22 is connected to the shot peening recovery tube 24 and the shot peening recovery port through the shot peening recovery connection port 10.

[0093] A circular loop is formed: shot peening launcher 21 → shot peening launch tube 23 → shot peening launch connection port 9 → shot peening sealing cover (for rust and slag removal from the outer wall of the pipe) → shot peening recovery port → shot peening recovery connection port 10 → shot peening recovery tube 24 → shot peening recovery machine 22 → shot peening launcher 21, which constitutes a complete circular route for shot peening 100 launch and recovery, enabling sealed circular shot peening 100 for slag and rust removal and cleaning.

[0094] The shot peening firing port 9 and the shot peening recovery port 10 are located on the first side plate 4. The purpose of this is to separate the shot peening circulation assembly from the shot peening box when not in use. The ports are located on the outside of the first side plate 4 to facilitate installation.

[0095] The second side plate is provided with a shot blasting recovery port cover plate for operating the shot blasting recovery port. In this embodiment, since the shot blasting recovery port is located inside the second side plate, but the shot blasting recovery connection port 10 is located on the first side plate 4, it is necessary to provide a pipeline connecting the shot blasting recovery port and the shot blasting recovery connection port 10 between the upper cover plate 2 and the arched bottom plate 1 (which can also be part of the shot blasting recovery port).

[0096] Example 5

[0097] like Figure 1 and Figure 4 As shown, the connecting components in this embodiment include a first gripper assembly and a second gripper assembly. They have the same structure but are positioned differently. The first gripper assembly is located on the first end face of the upper cavity of the shot peening box, and the second gripper assembly is located on the second end face of the upper cavity of the shot peening box.

[0098] The specific structure of the first gripper assembly / second gripper assembly includes a first gripper 11, a second gripper 12, a movable roller 13, and a tension spring 14.

[0099] The first gripper 11 has a first end and a second end, and the second gripper 12 has a first end and a second end.

[0100] The first end of the first gripper 11 is rotatably connected to the upper cavity of the shot peening box, and the first end of the second gripper 12 is rotatably connected to the upper cavity of the shot peening box.

[0101] The first clamp 11 and the second clamp 12 have the same structure, only their installation positions are different. The first clamp 11 and the second clamp 12 are located on both sides of the pipe, the plane of the first clamp 11 and the second clamp 12 coincides with the axis of the pipe, and the pipe is located between the first clamp 11 and the second clamp 12.

[0102] The two ends of the tension spring 14 are connected to the first clamp 11 and the second clamp 12 respectively, and apply a force toward the pipe to the first clamp 11 and the second clamp 12. The tension spring 14 can make the first clamp 11 and the second clamp 12 clamp the pipe, thereby achieving the purpose of fixing the shot peening box to the pipe through the connecting assembly.

[0103] In practical use, it is necessary to remove slag and rust from the entire circumference of the pipeline. Since the shot blasting sealing cover cannot cover the entire pipeline, the movable roller 13 is connected to the second end of the first clamp 11 / second clamp 12. Because the movable roller 13 can roll circumferentially along the outer wall of the pipeline, the entire device can be controlled to rotate along the central axis of the pipeline on the outer wall of the pipeline. This allows the worker to push the shot blasting box along the weld seam around the pipeline circumferentially, thus achieving 360° cleaning without the pipeline needing to rotate.

[0104] A handle 20 is fixedly installed on the outer side of the upper cover plate 2, which can be easily pushed and rotated.

[0105] In addition, to increase the synergy between the first gripper assembly and the second gripper assembly, a first connecting rod 15 and a second connecting rod 16 are provided to connect the first gripper assembly and the second gripper assembly.

[0106] The two ends of the first connecting rod 15 are respectively fixedly connected to the second end of the first claw 11 of the first claw assembly and the second end of the first claw 11 of the second claw assembly.

[0107] The two ends of the second connecting rod 16 are respectively fixedly connected to the second end of the second claw 12 of the first claw assembly and the second end of the second claw 12 of the second claw assembly.

[0108] That is, the synchronous movement of the two first grippers 11 is achieved through the first connecting rod 15, and the synchronous movement of the two second grippers 12 is achieved through the second connecting rod 16.

[0109] Example 6

[0110] This embodiment describes the structure of the first gripper 11 / second gripper 12 in Embodiment 5, which includes a support link 17, an arc-shaped link 18, and a connecting baffle 19.

[0111] The first end of the support rod 17 is rotatably connected to the upper cavity of the shot peening box. The first end of the support rod 17 is the first end of the first gripper 11 / second gripper 12. The first end of the arc-shaped link 18 is rotatably connected to the second end of the support rod 17. The second end of the arc-shaped link 18 is the second end of the first gripper 11 / second gripper 12.

[0112] However, during normal use, the tension spring 14 needs to apply an inward force to the first gripper 11 / second gripper 12. Therefore, it is necessary to limit the rotation angle of the arc-shaped connecting rod 18 as it rotates outward along the axis. In this embodiment, a connecting baffle 19 is provided, which has a first end and a second end.

[0113] like Figure 4 As shown, the first end of the connecting baffle 19 is fixedly connected to the outer side of the first end of the arc-shaped connecting rod 18, and the second end of the connecting baffle 19 is in contact with the outer side of the second end of the supporting connecting rod 17. When the arc-shaped connecting rod 18 rotates outward to a certain angle, the second end of the connecting baffle 19 is in contact with the supporting connecting rod 17, and at this time it cannot open. The tension spring 14 can then tighten the entire gripper.

[0114] Furthermore, when setting up the arc-shaped connecting rod 18, the diameter of the arc-shaped connecting rod 18 is equal to the outer diameter of the pipe, and the two ends of the tension spring 14 are respectively connected to the support connecting rod 17, so that the connection component can be connected to the pipe, and the connection component can be conveniently stored when not in use.

[0115] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.

[0116] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0117] Those skilled in the art should understand that the above embodiments are merely for illustrating the present invention and are not intended to limit the scope of the invention. Those skilled in the art can make other changes or modifications based on the above invention, and these changes or modifications still fall within the scope of the present invention.

Claims

1. A circulating pipe external wall shot blasting rust removal and slag removal device, characterized in that, include: A shot peening box includes: an upper cavity of the shot peening box and a shot peening sealing cover. The upper cavity of the shot peening box has an outer side and an inner side. The shot peening sealing cover is a frame with openings at both ends. The shot peening sealing cover has an inner end and an outer end. The outer end face of the shot peening sealing cover is connected to the inner side of the upper cavity of the shot peening box, and the inner end face of the shot peening sealing cover is dynamically sealed to the outer wall of the pipe. A shot peening circulation assembly has a shot peening outlet and a shot peening recovery outlet, both of which are connected to the interior of the shot peening sealing cover. A connecting assembly that is connected to the shot peening box and clamped onto the pipe; The upper cavity of the shot peening box includes: An arched base plate having a first side and a second side parallel to the central axis of the pipe, wherein the shot peening seal is connected to the inner side of the arched base plate; The top cover plate has a first side and a second side parallel to the central axis of the pipe, and is disposed on the outside of the arched bottom plate; The first side plate has an outer side and an inner side. The outer side of the first side plate is fixedly connected to the first side of the upper cover plate, and the inner side of the first side plate is fixedly connected to the first side of the arched bottom plate. The second side plate has an outer side and an inner side. The outer side of the second side plate is fixedly connected to the second side of the upper cover plate, and the inner side of the second side plate is fixedly connected to the second side of the arched bottom plate. The upper cavity of the shot peening box is configured to have a first end and a second end, and the line connecting the first end and the second end of the upper cavity of the shot peening box is parallel to the axis of the pipe. The connecting assembly includes: a first gripper assembly and a second gripper assembly, wherein the first gripper assembly is disposed on a first end face of the upper cavity of the shot peening box; and the second gripper assembly is disposed on a second end face of the upper cavity of the shot peening box. The first gripper assembly / the second gripper assembly includes: The first gripper has a first end and a second end, and the first end of the first gripper is rotatably connected to the upper cavity of the shot peening box. The second gripper has a first end and a second end, and the first end of the second gripper is rotatably connected to the upper cavity of the shot peening box. A movable roller is connected to the second end of the first gripper / second gripper, and the movable roller can roll circumferentially along the outer wall of the pipe; A tension spring, the two ends of which are connected to the first gripper and the second gripper respectively, and applies a force toward the pipe to the first gripper and the second gripper; The first gripper / second gripper includes: A support link, the first end of which is rotatably connected to the upper cavity of the shot peening box, the first end of which is the first end of the first gripper / second gripper; An arc-shaped connecting rod, the first end of which is rotatably connected to the second end of the supporting connecting rod, wherein the second end of the arc-shaped connecting rod is the second end of the first gripper / the second gripper; A connecting baffle has a first end and a second end. The first end of the connecting baffle is fixedly connected to the outer side of the first end of the arc-shaped connecting rod, and the second end of the connecting baffle is in contact with the outer side of the second end of the supporting connecting rod. The diameter of the arc-shaped connecting rod is equal to the outer diameter of the pipe, and the two ends of the tension spring are respectively connected to the support connecting rod.

2. The circulating pipeline external wall shot blasting rust removal and slag removal device according to claim 1, characterized in that, The shot peening sealing cover includes: A first arc-shaped cover plate is arranged radially along the pipe, the outer arc edge of the first arc-shaped cover plate is connected to the inner side of the arched bottom plate, and the inner arc edge of the first arc-shaped cover plate is in contact with the outer wall of the pipe. The second arc-shaped cover plate is arranged parallel to the first arc-shaped cover plate. The outer arc edge of the second arc-shaped cover plate is connected to the inner side of the arched bottom plate, and the inner arc edge of the second arc-shaped cover plate is in contact with the outer wall of the pipe. A first cover plate is arranged along the axial direction of the pipe, and the two ends of the first cover plate are fixedly connected to the first arc-shaped cover plate and the second arc-shaped cover plate respectively. The outer side of the first cover plate is connected to the inner side of the arched bottom plate, and the inner side of the first cover plate is in contact with the outer wall of the pipe. The second cover plate is arranged parallel to the first cover plate, and its two ends are fixedly connected to the first arc-shaped cover plate and the second arc-shaped cover plate respectively. The outer edge of the second cover plate is connected to the inner side of the arched bottom plate, and the inner edge of the second cover plate is in contact with the outer wall of the pipe.

3. The circulating pipeline external wall shot blasting rust removal and slag removal device according to claim 2, characterized in that, The first arc-shaped cover plate, the second arc-shaped cover plate, the first cover plate, and the second cover plate are rubber plates, and the shot peening sealing cover is integrally formed.

4. A circulating pipeline external wall shot blasting rust removal and slag removal device according to claim 2, characterized in that, The shot peening circulation assembly includes: A shot peening gun is mounted between the arched base plate and the upper cover plate, with its firing port passing through the arched base plate and located inside the shot peening sealing cover. A shot peening recovery port is installed between the arched base plate and the upper cover plate, and the shot inlet of the shot peening recovery port passes through the arched base plate and is disposed inside the shot peening sealing cover; The shot peening gun is located inside the first side plate, and the shot peening recovery port is located inside the second side plate. A shot peening launcher, which is connected to the shot peening gun via a shot peening launch tube connected to the shot peening launch port; The shot peening recovery machine is connected to the shot peening recovery port via a shot peening recovery pipe connected to the shot peening recovery connection port.

5. The circulating pipeline external wall shot blasting rust removal and slag removal device according to claim 1, characterized in that, The plane containing the first and second grippers coincides with the axis of the pipe, and the pipe is located between the first and second grippers.

6. The circulating pipeline external wall shot blasting rust removal and slag removal device according to claim 1, characterized in that, The connection component also includes: The first connecting rod has its two ends fixedly connected to the second end of the first jaw of the first jaw assembly and the second end of the first jaw of the second jaw assembly, respectively. The second connecting rod has its two ends fixedly connected to the second end of the second jaw of the first jaw assembly and the second end of the second jaw of the second jaw assembly, respectively.

7. A circulating pipeline external wall shot blasting rust removal and slag removal device according to claim 4, characterized in that, A handle is fixedly provided on the outer side of the upper cover plate. The shot peening firing port and the shot peening recovery port are provided on the first side plate. The second side plate is provided with a shot peening recovery port cover plate for operating the shot peening recovery port.

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