Large-diameter pccp pipeline interface grouting and smoothing device

Abstract

The application relates to the technical field of pipeline construction, and discloses a large-diameter PCCP pipeline interface grouting and smoothing device, which comprises two groups of vertical plates, strip-shaped through grooves are formed in the two groups of vertical plates, and walking wheels are arranged on the two groups of vertical plates; a fixing assembly is arranged on the two groups of vertical plates, the fixing assembly comprises adjusting seats, a fixing plate and connecting columns, the two groups of adjusting seats are arranged, the two groups of adjusting seats are respectively slidably installed on the two groups of vertical plates through elastic supporting assemblies, the two ends of the connecting columns are fixedly connected with the two groups of adjusting seats, the adjusting seat is a cross-shaped structure, the fixing plate is installed on the adjusting seat through an extension assembly, and four fixing plates are arranged on each adjusting seat; and a smoothing assembly is rotatably installed on the connecting column through a rotating assembly; the application has a novel structure and can improve construction efficiency.

Description

Technical Field

[0001] This invention belongs to the field of pipeline construction technology, specifically a grouting and smoothing device for large-diameter PCCP pipeline joints. Background Technology

[0002] PCCP (Prestressed Concrete Cylinder Pipe) is a type of prestressed concrete cylinder pipe. It is made by winding circumferential prestressed steel wires around a high-strength concrete core with a steel cylinder, and then spraying a dense cement mortar protective layer on top. This type of pipe fully and comprehensively utilizes the tensile strength and sealing properties of steel with the compressive strength and corrosion resistance of concrete, resulting in high sealing performance, high strength, and high impermeability. PCCP pipes have a wide range of applications, including large-scale water transmission projects between regional water sources, water supply and distribution networks for tap water, industrial and agricultural irrigation systems, and power plant circulating water pipelines.

[0003] Currently, after grouting at the joints of large-diameter PCCP pipes, manual smoothing of the mortar at the joints is usually required. Due to the large pipe diameter, this presents significant challenges for workers, and manual smoothing is inefficient, severely impacting the construction progress. Therefore, there is an urgent need to provide a grouting and smoothing device for large-diameter PCCP pipe joints to overcome the shortcomings in current practical applications. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the present invention provides a grouting and smoothing device for large-diameter PCCP pipe joints, which effectively solves the problems in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a grouting and smoothing device for large-diameter PCCP pipe joints, comprising:

[0006] Two sets of upright plates, each set of upright plates has a strip-shaped through groove, and both sets of upright plates are also equipped with wheels;

[0007] The fixing component includes an adjusting seat, a fixing plate, and a connecting column. The adjusting seat is provided in two sets, and the two sets of adjusting seats are slidably installed on the two sets of upright plates through elastic support components. The two ends of the connecting column are fixedly connected to the two sets of adjusting seats respectively. The adjusting seat has a cross-shaped structure. The fixing plate is installed on the adjusting seat through a telescopic component, and each set of adjusting seats is provided with four sets of fixing plates.

[0008] And a smoothing component, which is rotatably mounted on the connecting column via a rotating component.

[0009] As a further optimization of this technical solution, the telescopic component includes:

[0010] A threaded rod, one end of which is rotatably mounted in the adjusting seat, and the other end of which extends into the fixed plate and is threadedly connected to the fixed plate.

[0011] A guide rod, one end of which is fixedly installed in the adjusting seat, and the other end of which extends into the fixed plate and is slidably connected to the fixed plate;

[0012] And a drive assembly for rotating the threaded rod.

[0013] As a further optimization of this technical solution, the driving component includes:

[0014] The third gear is fixedly mounted on the threaded rod;

[0015] Rotate the second gear installed in the adjusting seat; the second gear meshes with the third gear.

[0016] A second motor is fixedly mounted on an elastic support assembly, and the output shaft of the second motor is connected to the second gear via a rotating shaft.

[0017] As a further optimization of this technical solution, each set of fixing plates is also provided with auxiliary components, the auxiliary components including:

[0018] Adsorption plate, wherein the adsorption plate is fixedly installed on the fixing plate;

[0019] The base is slidably mounted on the adsorption plate via a connecting rod, and a movable plate is fixedly mounted on the end of the connecting rod away from the base.

[0020] The roller is rotatably mounted on the base;

[0021] The fourth spring is disposed between the adsorption plate and the base;

[0022] And an adsorption component for securing the adsorption plate and the moving plate together.

[0023] As a further optimization of this technical solution, both the adsorption plate and the moving plate are provided with grooves for accommodating the adsorption components.

[0024] As a further optimization of this technical solution, the adsorption component includes an electromagnet and a metal plate. The electromagnet is fixedly installed in the groove of the adsorption plate, and the metal plate is fixedly installed in the groove of the movable plate.

[0025] As a further optimization of this technical solution, the rotating component includes:

[0026] A rotating cylinder is rotatably mounted on a connecting column, and a toothed ring is also fixedly mounted on the rotating cylinder;

[0027] And a first motor fixedly mounted on the adjusting base, wherein a first gear meshing with a gear ring is fixedly mounted on the output shaft of the first motor.

[0028] As a further optimization of this technical solution, the smoothing component includes:

[0029] A support ring is fixedly installed on the rotating cylinder, and a cavity is provided inside the support ring;

[0030] A support box is fixedly installed on a support ring, the support box having a cavity inside, and the cavity inside the support box communicating with the cavity inside the support ring;

[0031] A telescopic plate is slidably installed inside a support box. A first piston plate and a baffle are fixedly installed at both ends of the telescopic plate, and the first piston plate is slidably engaged with the support box.

[0032] A second spring is sleeved on the telescopic plate, one end of which is fixedly connected to the first piston plate, and the other end of which is fixedly connected to the bottom of the support box;

[0033] A connecting box that is slidably connected to the baffle, wherein a third spring is also provided inside the connecting box for elastically supporting the baffle;

[0034] A pneumatic assembly for filling gas into the support ring;

[0035] And a scraper that is fixedly installed on the connector box.

[0036] As a further optimization of this technical solution, the pneumatic component includes:

[0037] An air guide ring is rotatably mounted on a support ring, and the air guide ring is connected to the cavity of the support ring.

[0038] A compression box is fixedly installed on a fixed plate, and the compression box is connected to the air guide ring through a conduit, which is a rigid tube;

[0039] A limiting plate is fixedly installed on an adjusting seat, and a push-pull rod that is slidably connected to the compression box is provided on the limiting plate. A second piston plate that is slidably connected to the compression box is fixedly installed at the end of the push-pull rod away from the limiting plate.

[0040] As a further optimization of this technical solution, the elastic support assembly includes a support block and a first spring. The support block is slidably installed inside the upright plate and is fixedly connected to the adjustment seat. The support block is also provided with a circular hole for the rotating shaft to pass through. At least one set of the first spring is provided in the strip-shaped through groove of the upright plate and is fixedly connected to the support block.

[0041] Compared with the prior art, the beneficial effects of the present invention are as follows: the two sets of upright plates, in cooperation with the traveling wheels, can achieve stable support for the fixing components, and at the same time, can drive the fixing components and the smoothing components to move to different working positions. In use, the device is moved to the internal interface of the large-diameter PCCP pipe. The telescopic component can extend multiple sets of fixing plates by driving the fixing plates to move, and press the fixing plates onto the inner wall of the large-diameter PCCP pipe. Finally, the smoothing component is fixed to the interface of the large-diameter PCCP pipe. The rotating component can achieve the smoothing treatment of the mortar at the interface by driving the smoothing component to rotate on the connecting column. Attached Figure Description

[0042] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation of the present invention.

[0043] In the attached diagram:

[0044] Figure 1 This is a perspective view of a grouting and smoothing device for a large-diameter PCCP pipe interface provided in an embodiment of the present invention.

[0045] Figure 2 This is a front view structural schematic diagram of a large-diameter PCCP pipe joint grouting and smoothing device provided in an embodiment of the present invention.

[0046] Figure 3 This is a schematic diagram of the main sectional view of the smoothing component in a grouting and smoothing device for a large-diameter PCCP pipe interface provided in an embodiment of the present invention.

[0047] Figure 4 for Figure 3 A magnified structural diagram of point A in the middle.

[0048] Figure 5 This is a front sectional view of the pneumatic component in a grouting and smoothing device for a large-diameter PCCP pipe interface provided in an embodiment of the present invention.

[0049] Figure 6 This is a side view of a grouting and smoothing device for a large-diameter PCCP pipe interface provided in an embodiment of the present invention.

[0050] Figure 7This is a schematic diagram of the fixing component in a grouting and smoothing device for a large-diameter PCCP pipe interface provided in an embodiment of the present invention.

[0051] Figure 8 for Figure 7 A magnified structural diagram at point B in the middle.

[0052] Figure 9 for Figure 7 A partial cross-sectional structural diagram.

[0053] Figure 10 for Figure 9 A magnified structural diagram at point C.

[0054] In the diagram: 1-Upright plate, 2-Walking wheel, 3-Scraper, 4-Connecting box, 5-Telescopic plate, 6-Support box, 7-Fixed plate, 8-Adjusting seat, 9-First motor, 10-First gear, 11-Gear ring, 12-Rotating cylinder, 13-First spring, 14-Support block, 15-Second motor, 16-Support ring, 17-Compression box, 18-Conduit, 19-Air guide ring, 20-Limiting plate, 21-Push-pull rod, 22-First piston plate, 23-Second spring, 24-Baffle, 25-Third spring, 26-Second piston plate, 27-Rotating shaft, 28-Connecting column, 29-Roller, 30-Base, 31-Connecting rod, 32-Fourth spring, 33-Adsorption plate, 34-Moving plate, 35-Electromagnet, 36-Metal plate, 37-Second gear, 38-Threaded rod, 39-Third gear, 40-Guide rod. Detailed Implementation

[0055] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0056] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0057] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0058] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0059] The present invention will be further explained below with reference to specific embodiments.

[0060] Please see Figures 1-10 This invention provides a grouting and smoothing device for large-diameter PCCP pipe joints, comprising:

[0061] Two sets of upright plates 1, each set of upright plates 1 is provided with a strip-shaped through groove, and both sets of upright plates 1 are also provided with traveling wheels 2;

[0062] The fixing component includes an adjusting seat 8, a fixing plate 7, and a connecting column 28. There are two sets of adjusting seats 8, and the two sets of adjusting seats 8 are slidably installed on the two sets of upright plates 1 through elastic support components. The two ends of the connecting column 28 are fixedly connected to the two sets of adjusting seats 8 respectively. The adjusting seat 8 has a cross-shaped structure. The fixing plate 7 is installed on the adjusting seat 8 through a telescopic component, and each set of adjusting seats 8 is provided with four sets of fixing plates 7.

[0063] And a smoothing component, which is rotatably mounted on the connecting column 28 via a rotating component.

[0064] In an embodiment of the present invention, the two sets of upright plates 1, in cooperation with the traveling wheels 2, can provide stable support for the fixing components and drive the fixing components and smoothing components to move to different working positions. In use, the device is moved to the internal interface of the large-diameter PCCP pipe. The telescopic component can extend multiple sets of fixing plates 7 by moving the fixing plates 7, and press the fixing plates 7 against the inner wall of the large-diameter PCCP pipe. Finally, the smoothing component is fixed to the interface of the large-diameter PCCP pipe. The rotating component can smooth the mortar at the interface by driving the smoothing component to rotate on the connecting column 28.

[0065] In one embodiment of the present invention, please refer to Figure 1 as well as Figures 7-10 The telescopic component includes:

[0066] A threaded rod 38, one end of which is rotatably mounted in the adjusting seat 8, and the other end of which extends into the fixing plate 7 and is threadedly connected to the fixing plate 7.

[0067] Guide rod 40, one end of which is fixedly installed in the adjusting seat 8, and the other end of which extends into the fixing plate 7 and is slidably connected to the fixing plate 7;

[0068] And a drive assembly for rotating the threaded rod 38;

[0069] The driving component includes:

[0070] The third gear 39 is fixedly mounted on the threaded rod 38;

[0071] The second gear 37, which is rotatably installed in the adjusting seat 8, meshes with the third gear 39;

[0072] A second motor 15 is fixedly installed on an elastic support assembly, and the output shaft of the second motor 15 is connected to the second gear 37 via a rotating shaft 27.

[0073] Each set of fixing plates 7 is also provided with auxiliary components, the auxiliary components including:

[0074] Adsorption plate 33, which is fixedly installed on the fixing plate 7;

[0075] The base 30 is slidably mounted on the adsorption plate 33 via a connecting rod 31, and a movable plate 34 is fixedly mounted on the end of the connecting rod 31 away from the base 30.

[0076] Roller 29, which is rotatably mounted on base 30;

[0077] The fourth spring 32 is disposed between the adsorption plate 33 and the base 30;

[0078] And an adsorption component for fixing the adsorption plate 33 and the movable plate 34 together;

[0079] Both the adsorption plate 33 and the movable plate 34 are provided with grooves for accommodating the adsorption components.

[0080] The adsorption component includes an electromagnet 35 and a metal plate 36. The electromagnet 35 is fixedly installed in the groove of the adsorption plate 33, and the metal plate 36 is fixedly installed in the groove of the movable plate 34.

[0081] In this embodiment, the second motor 15, the rotating shaft 27, the second gear 37, and the third gear 39 work together to drive multiple sets of threaded rods 38 to rotate simultaneously, thereby moving the fixing plate 7 along the length of the threaded rods 38. When fixing, the electromagnet 35 is energized and the moving plate 34 is attracted to the adsorption plate 33. At this time, the roller 29 protrudes from the end of the fixing plate 7. During the movement of the fixing plate 7, the roller 29 first contacts the inner wall of the pipe, allowing the fixing plate 7 to slide on the inner wall of the pipe, thereby adjusting the position of the fixing plate 7. When the fixing plate 7 is about to be fully extended, the electromagnet 35 is de-energized, causing the fourth spring 32 to pull the base 30 to move towards the adsorption plate 33. At this time, the telescopic component drives the fixing plate 7 to continue moving, so that the fixing plate 7 can be completely pressed against the inner wall to achieve fixing. After fixing, the center line of the connecting column 28 is collinear with the center line of the large-diameter PCCP pipe.

[0082] In one embodiment of the present invention, please refer to Figures 1-5 The rotating assembly includes:

[0083] A rotating cylinder 12 is rotatably mounted on a connecting column 28, and a toothed ring 11 is also fixedly mounted on the rotating cylinder 12;

[0084] And a first motor 9 fixedly installed on the adjusting seat 8, wherein a first gear 10 meshing with a gear ring 11 is fixedly installed on the output shaft of the first motor 9;

[0085] The smoothing component includes:

[0086] Support ring 16, which is fixedly installed on the rotating cylinder 12, and has a cavity inside;

[0087] A support box 6 is fixedly installed on the support ring 16. The support box 6 has a cavity inside, and the cavity inside the support box 6 is connected to the cavity inside the support ring 16.

[0088] A telescopic plate 5 is slidably installed inside the support box 6. A first piston plate 22 and a baffle 24 are respectively fixedly installed at both ends of the telescopic plate 5. The first piston plate 22 is slidably engaged with the support box 6.

[0089] A second spring 23 is sleeved on the telescopic plate 5. One end of the second spring 23 is fixedly connected to the first piston plate 22, and the other end of the second spring 23 is fixedly connected to the bottom of the support box 6.

[0090] The connecting box 4 is slidably connected to the baffle 24, and the connecting box 4 is also provided with a third spring 25 for elastically supporting the baffle 24;

[0091] A pneumatic assembly for filling gas into the support ring 16;

[0092] And the scraper 3 fixedly installed on the connecting box 4;

[0093] The pneumatic assembly includes:

[0094] Air guide ring 19, which is rotatably mounted on support ring 16 and is connected to the cavity of support ring 16;

[0095] Compression box 17 is fixedly installed on fixing plate 7, and compression box 17 is connected to air guide ring 19 through conduit 18, conduit 18 being a rigid tube;

[0096] A limiting plate 20 is fixedly installed on the adjusting seat 8, and a push-pull rod 21 that is slidably connected to the compression box 17 is provided on the limiting plate 20. A second piston plate 26 that is slidably connected to the compression box 17 is fixedly installed at the end of the push-pull rod 21 away from the limiting plate 20.

[0097] In this embodiment, during use, the compression box 17, the air guide ring 19, the support ring 16, and the support box 6 all contain gas. The initial state of the smoothing assembly is shown in the attached scraper 3. During the movement of the fixing plate 7, the compression box 17 can be moved, causing the second piston plate 26 to press the gas in the compression box 17 into the air guide ring 19 through the conduit 18, and the air guide ring 19 to guide the gas into the support ring 16, thereby increasing the gas in the support box 6, which can push the first piston plate 22 to move within the support box 6. A piston plate 22 drives the telescopic plate 5, the connecting box 4, and the scraper 3 to move, so that the scraper 3 contacts the interface. Through the cooperation of the first motor 9, the first gear 10, and the gear ring 11, the rotating cylinder 12 can be driven to rotate, thereby driving the scraper 3 to rotate around the rotating cylinder 12 as the axis, thus realizing the smoothing work. Through the cooperation of the baffle 24 and the third spring 25, the scraper 3 can make elastic contact with the inner wall. The end of the scraper 3 away from the connecting box 4 has a protruding structure to facilitate the smoothing work.

[0098] In one embodiment of the present invention, please refer to Figure 1 and Figure 6 The elastic support assembly includes a support block 14 and a first spring 13. The support block 14 is slidably installed in the upright plate 1 and is fixedly connected to the adjusting seat 8. The support block 14 is also provided with a round hole for the rotating shaft 27 to pass through. At least one set of the first spring 13 is provided in the strip-shaped through groove of the upright plate 1 and the first spring 13 is fixedly connected to the support block 14.

[0099] In this embodiment, the first spring 13 provides elastic support to the support block 14, enabling the support block 14 and the fixing component to move in the vertical direction, thus facilitating the use of the fixing component.

[0100] Working Principle: During use, the device is moved to the internal interface of a large-diameter PCCP pipe. The telescopic component extends multiple sets of fixing plates 7 by moving the fixing plates 7, pressing them against the inner wall of the large-diameter PCCP pipe. Finally, the smoothing component is fixed to the interface of the large-diameter PCCP pipe. The rotating component, by rotating the smoothing component on the connecting column 28, smooths the mortar at the interface. Specifically, through the coordinated arrangement of the second motor 15, rotating shaft 27, second gear 37, and third gear 39, multiple sets of threaded rods 38 rotate simultaneously, thereby moving the fixing plates 7 along the length of the threaded rods 38. During fixing, the electromagnet 35 is energized, attracting the moving plate 34 onto the adsorption plate 33. At this time, the roller 29 protrudes from the end of the fixing plate 7. During the movement of the fixing plate 7, the roller 29 first contacts the inner wall of the pipe, allowing the fixing plate 7 to slide on the inner wall, thus adjusting the position of the fixing plate 7. When the fixed plate 7 is about to be fully extended, the electromagnet 35 is de-energized, causing the fourth spring 32 to pull the base 30 to move towards the adsorption plate 33. At this time, the telescopic assembly drives the fixed plate 7 to continue moving, so that the fixed plate 7 can be completely pressed against the inner wall to achieve fixation. After fixation, the center line of the connecting column 28 is collinear with the center line of the large-diameter PCCP pipe. During the movement of the fixed plate 7, it can drive the compression box 17 to move, so that the second piston plate 26 can push the gas in the compression box 17 into the gas guide ring 19 through the conduit 18, and the gas guide ring 19 can guide the gas into the support ring 16, thereby increasing the gas in the support box 6, which can push the first piston plate 22 to move in the support box 6. The first piston plate 22 will drive the telescopic plate 5, the connecting box 4 and the scraper 3 to move, so that the scraper 3 contacts the interface. Through the cooperation of the first motor 9, the first gear 10 and the gear ring 11, the rotating cylinder 12 can be driven to rotate, thereby driving the scraper 3 to rotate around the rotating cylinder 12 as the axis, thereby achieving the smoothing work.

[0101] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A grouting and smoothing device for large-diameter PCCP pipe joints, comprising two sets of vertical plates (1), each set of vertical plates (1) having a strip-shaped through groove, and both sets of vertical plates (1) also having wheels (2), characterized in that, Also includes: The fixing component includes an adjusting seat (8), a fixing plate (7), and a connecting column (28). The adjusting seat (8) is provided in two sets, and the two sets of adjusting seats (8) are slidably installed on the two sets of upright plates (1) respectively through elastic support components. The two ends of the connecting column (28) are fixedly connected to the two sets of adjusting seats (8) respectively. The adjusting seat (8) has a cross-shaped structure. The fixing plate (7) is installed on the adjusting seat (8) through a telescopic component, and each set of adjusting seats (8) is provided with four sets of fixing plates (7). And a smoothing component, which is rotatably mounted on the connecting column (28) via a rotating component; Each set of fixing plates (7) is also provided with auxiliary components, the auxiliary components including: Adsorption plate (33), the adsorption plate (33) is fixedly installed on the fixing plate (7); The base (30) is slidably mounted on the adsorption plate (33) via a connecting rod (31), and a movable plate (34) is fixedly mounted on the end of the connecting rod (31) away from the base (30). Roller (29), which is rotatably mounted on base (30); A fourth spring (32) is disposed between the adsorption plate (33) and the base (30); And an adsorption element for fixing the adsorption plate (33) and the movable plate (34) together.

2. The grouting and smoothing device for large-diameter PCCP pipe joints according to claim 1, characterized in that, The telescopic component includes: A threaded rod (38) is rotatably mounted in an adjusting seat (8) at one end and extends into a fixed plate (7) at the other end and is threadedly connected to the fixed plate (7). Guide rod (40), one end of which is fixedly installed in the adjusting seat (8), and the other end of which extends into the fixing plate (7) and is slidably connected to the fixing plate (7); And a drive assembly for rotating the threaded rod (38).

3. The grouting and smoothing device for large-diameter PCCP pipe joints according to claim 2, characterized in that, The driving component includes: The third gear (39) is fixedly mounted on the threaded rod (38); Rotate the second gear (37) installed in the adjusting seat (8), and the second gear (37) meshes with the third gear (39); A second motor (15) is fixedly installed on an elastic support assembly. The output shaft of the second motor (15) is connected to the second gear (37) via a rotating shaft (27).

4. The grouting and smoothing device for large-diameter PCCP pipe joints according to claim 3, characterized in that, Both the adsorption plate (33) and the moving plate (34) are provided with grooves for accommodating the adsorption components.

5. The grouting and smoothing device for large-diameter PCCP pipe joints according to claim 4, characterized in that, The adsorption component includes an electromagnet (35) and a metal plate (36). The electromagnet (35) is fixedly installed in the groove of the adsorption plate (33), and the metal plate (36) is fixedly installed in the groove of the movable plate (34).

6. The grouting and smoothing device for large-diameter PCCP pipe joints according to claim 1, characterized in that, The rotating component includes: Rotating cylinder (12), the rotating cylinder (12) is rotatably mounted on the connecting column (28), and a toothed ring (11) is also fixedly mounted on the rotating cylinder (12); And a first motor (9) fixedly installed on the adjusting seat (8), wherein a first gear (10) meshing with a gear ring (11) is fixedly installed on the output shaft of the first motor (9).

7. The grouting and smoothing device for large-diameter PCCP pipe joints according to claim 6, characterized in that, The smoothing component includes: Support ring (16), the support ring (16) is fixedly installed on the rotating cylinder (12), and a cavity is opened in the support ring (16); A support box (6) is fixedly installed on the support ring (16). The support box (6) has a cavity inside, and the cavity inside the support box (6) is connected to the cavity inside the support ring (16). A telescopic plate (5) is slidably installed inside the support box (6). A first piston plate (22) and a baffle (24) are fixedly installed at both ends of the telescopic plate (5). The first piston plate (22) slides in cooperation with the support box (6). A second spring (23) is sleeved on the telescopic plate (5). One end of the second spring (23) is fixedly connected to the first piston plate (22), and the other end of the second spring (23) is fixedly connected to the bottom of the support box (6). A connecting box (4) is slidably connected to the baffle (24), and a third spring (25) is also provided in the connecting box (4) for elastically supporting the baffle (24). A pneumatic assembly for filling gas into the support ring (16); And a scraper (3) fixedly installed on the connecting box (4).

8. The grouting and smoothing device for large-diameter PCCP pipe joints according to claim 7, characterized in that, The pneumatic assembly includes: Air guide ring (19), which is rotatably mounted on support ring (16) and is connected to the cavity of support ring (16); Compression box (17), the compression box (17) is fixedly installed on the fixing plate (7), and the compression box (17) and the air guide ring (19) are connected by a conduit (18), the conduit (18) is a rigid pipe; Limiting plate (20), the limiting plate (20) is fixedly installed on the adjusting seat (8), and the limiting plate (20) is provided with a push-pull rod (21) that is slidably connected to the compression box (17). The end of the push-pull rod (21) away from the limiting plate (20) is fixedly installed with a second piston plate (26) that is slidably connected to the compression box (17).

9. A grouting and smoothing device for large-diameter PCCP pipe joints according to claim 3, characterized in that, The elastic support assembly includes a support block (14) and a first spring (13). The support block (14) is slidably installed in the upright plate (1) and is fixedly connected to the adjusting seat (8). The support block (14) is also provided with a round hole for the rotating shaft (27) to pass through. At least one set of the first spring (13) is provided in the strip through groove of the upright plate (1) and the first spring (13) is fixedly connected to the support block (14).

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