Prestressed concrete cylinder pipe (PCCP) anticorrosion protective layer spraying device

Abstract

The utility model relates to the technical field of pipe spraying, in particular to a PCCP anti-corrosion protective layer spraying device which comprises a box body buried underground, a moving mechanism capable of moving a spray gun, a lowering mechanism capable of lowering a pipeline to the box body and a rotating mechanism capable of enabling the pipeline to rotate. According to the pipeline conveying device, a pipeline rolls to the supporting cloth from the ground, then the air cylinder is started, the distance between the two sliding plates is adjusted through the adjacent supporting arms, the supporting cloth is naturally pressed into the box body by the pipeline, the height of the pipeline on the supporting cloth can be adjusted according to the distance between the two sliding plates, and the two driving motors are started to drive the adjacent two-way screws to rotate so as to adjust the distance between the two moving plates; the electric push rod is started to drive the adjacent lantern rings to move, the adjacent abutting blocks abut against the inner wall of the pipeline to position the pipeline, then the two power motors are started to drive the pipeline to rotate synchronously, the spray gun is fixed to the linear motor, the linear motor is used for driving the spray gun to move, and therefore a user can conveniently conduct paint spraying operation, and meanwhile the pipeline is convenient to transport and position.

Description

Technical Field

[0001] This utility model relates to the field of pipe spraying technology, specifically a PCCP pipe anti-corrosion protective layer spraying device. Background Technology

[0002] PCCP pipe, or prestressed concrete cylinder pipe, is a water pipe 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 it. When PCCP pipes are buried underground, if the outer surface is in direct contact with the soil, substances such as chloride ions and moisture from saline-alkali soils can penetrate into the mortar protective layer, causing the steel wires to rust, age, and break, leading to pipe bursts. Usually, epoxy coal tar anticorrosion paint is sprayed on the surface of the pipe to form an anticorrosion protective layer. During pipe spraying, the pipe is usually placed on a rotating support, which drives the pipe to rotate, and then the spray gun is used manually to spray the pipe. However, because PCCP pipes are relatively heavy, indoor hoisting equipment is needed to lift and transport the pipe before positioning it on the support. Pipe positioning and transportation are inconvenient, making it difficult to carry out the spraying operation. Utility Model Content

[0003] The purpose of this invention is to provide a spraying device for anti-corrosion protective layer of PCCP pipes to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] PCCP pipe anti-corrosion protective coating spraying device, including:

[0006] The system comprises an underground housing, a moving mechanism for moving the spray gun, a lowering mechanism for lowering the pipe into the housing, and a rotating mechanism for rotating the pipe. The moving mechanism is located above the housing, and the lowering mechanism is located above the housing. The lowering mechanism includes two guide rails, which are located above both ends of the housing. Two sliding plates are provided between the two guide rails, and each sliding plate is slidably engaged with the two guide rails at both ends. A support cloth is fixedly connected between the two sliding plates. The rotating mechanism is located inside the housing.

[0007] Furthermore, L-shaped plates are fixedly connected to the opposite sides of the two guide rails, and a cylinder is fixedly connected to one end of each L-shaped plate. Two support arms are rotatably connected to the movable end of each cylinder, and one end of each of the two support arms on the cylinder is rotatably connected to the adjacent ends of the two slide plates.

[0008] Furthermore, the moving mechanism includes:

[0009] The U-shaped frame, hydraulic cylinder, and connecting plate are provided. The bottom ends of the two arms of the U-shaped frame are fixedly connected to the two L-shaped plates respectively. The hydraulic cylinder is fixedly connected to the top surface of the U-shaped frame, and the movable end of the hydraulic cylinder passes through the inner top surface of the U-shaped frame. The connecting plate is slidably engaged between the two arms of the U-shaped frame. The top surface of the connecting plate is fixedly connected to the movable end of the hydraulic cylinder, and a drive box is fixedly connected to the bottom surface of the connecting plate. A linear motor is installed inside the drive box.

[0010] Furthermore, the rotating mechanism includes:

[0011] The enclosure comprises two rails, two movable plates, two rotating rods, two collars, and abutment components. The two rails are fixedly connected to the two opposite inner sidewalls of the housing. The two movable plates are located between the two rails, with both ends of each movable plate slidably engaged with the two rails. One end of each of the two rotating rods is rotatably connected to one side of each of the two movable plates. The inner sidewalls of the two collars are slidably engaged with the outer sidewalls of the two rotating rods. An abutment component is provided between each collar and the other end of the adjacent rotating rod. The abutment component includes multiple abutments, with each abutment having a support rod rotatably connected to both ends. One end of each of the two support rods on each abutment is rotatably connected to the other end of the adjacent rotating rod and the outer sidewall of the adjacent collar, respectively.

[0012] Furthermore, each of the two ends of any rail is rotatably connected to a bidirectional screw, one end of any rail is fixedly connected to a motor box, each motor box contains a drive motor, the motor shaft of each drive motor is fixedly connected to one end of an adjacent bidirectional screw, each moving plate has threaded holes at both ends, and each bidirectional screw engages with an adjacent threaded hole.

[0013] Furthermore, each movable plate is fixedly connected to a power box, each power box contains a power motor, each power motor shaft is fixedly connected to one end of an adjacent rotating rod, each movable plate is fixedly connected to multiple electric push rods, each outer wall of a sleeve ring is provided with a ball bearing, each sleeve ring is fixedly connected to the inner ring of an adjacent ball bearing with multiple guide rods, and the movable ends of multiple electric push rods on each movable plate are fixedly connected to the outer ring of an adjacent ball bearing.

[0014] Furthermore, both of the two sliding plates are fixedly connected to inclined guide plates on opposite sides.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] By rolling the pipe from the ground onto the support cloth, two cylinders are activated to adjust the distance between the two sliding plates via adjacent support arms. This allows the support cloth between the two sliding plates to be naturally pressed into the housing by the pipe. The height of the pipe on the support cloth can be adjusted according to the distance between the two sliding plates. Then, two drive motors are activated to rotate adjacent bidirectional screws to adjust the distance between the two moving plates, allowing two rotating rods to insert into both ends of the pipe. Next, an electric push rod is activated to move adjacent collars, causing adjacent abutments to contact the inner wall of the pipe to position it. Finally, two power motors are activated to drive the two rotating rods and the pipe to rotate synchronously. The spray gun is then fixed to a linear motor, which uses the linear motor to move the spray gun to spray the rotating pipe. This facilitates painting operations for users and also makes it easier to transport and position the pipe. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a plan view of the usage form of this utility model;

[0019] Figure 3 This is a schematic diagram of the lowering mechanism in this utility model.

[0020] Figure 4 This is a schematic diagram showing the positional relationship between the housing and the rotating mechanism in this utility model;

[0021] Figure 5 This is an exploded view of the rotating mechanism structure in this utility model;

[0022] Figure 6 This is a utility model Figure 5 Enlarged view of a portion of point A in the middle.

[0023] In the diagram: 100, housing; 200, moving mechanism; 210, U-shaped frame; 220, hydraulic cylinder; 230, connecting plate; 231, drive box; 300, lowering mechanism; 310, guide rail; 320, sliding plate; 321, guide plate; 322, support cloth; 330, L-shaped plate; 331, cylinder; 332, support arm; 400, rotating mechanism; 410, clamping rail; 411, double-acting screw; 412, motor box; 420, moving plate; 421, power box; 422, electric push rod; 430, rotating rod; 440, collar; 441, ball bearing; 450, stop block; 451, support rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-6 In this embodiment of the invention, the PCCP pipe anti-corrosion protective layer spraying device includes:

[0026] The system includes an underground housing 100, a moving mechanism 200 for moving the spray gun, a lowering mechanism 300 for lowering the pipe into the housing 100, and a rotating mechanism 400 for rotating the pipe. The moving mechanism 200 is located above the housing 100, and the lowering mechanism 300 is located above the housing 100. The lowering mechanism 300 includes two guide rails 310, which are located above both ends of the housing 100. Two sliding plates 320 are provided between the two guide rails 310. The two ends of any sliding plate 320 are slidably engaged with the two guide rails 310. A support cloth 322 is fixedly connected between the two sliding plates 320. The rotating mechanism 400 is located inside the housing 100.

[0027] Specifically, the housing 100 is pre-buried underground, and two guide rails 310 are fixed to the ground using connectors, so that two sliding plates 320 are close to the ground and the top of the housing 100 is parallel to the ground. The two sides of the support cloth 322 are fixed to the bottom of the two sliding plates 320 respectively through connectors. In use, by sliding the two sliding plates 320 in opposite directions, the two sliding plates 320 pull the support cloth 322 apart, and then roll the pipe onto the sliding plates 320 and onto the support cloth 322. Then, the two sliding plates 320 are moved towards each other, so that the originally taut support cloth 322 naturally hangs into the housing 100 and pulls the pipe into the housing 100 together. The height of the support cloth 322 falling into the housing 100 can be controlled by adjusting the moving distance of the two sliding plates 320, thereby adjusting the height of the pipe. Then, the pipe is fixed by the rotating mechanism 400, and the moving mechanism 200 and the spraying equipment are used to spray the pipe, thereby facilitating the spraying operation of the transported pipe. Example 1

[0028] like Figure 3 As shown, in this embodiment, L-shaped plates 330 are fixedly connected to the opposite sides of the two guide rails 310. A cylinder 331 is fixedly connected to one end of each L-shaped plate 330. Two support arms 332 are rotatably connected to the movable end of each cylinder 331. One end of each of the two support arms 332 on each cylinder 331 is rotatably connected to the adjacent ends of the two slide plates 320.

[0029] In this embodiment, during use, the distance between the two slide plates 320 can be adjusted by starting the cylinder 331 through the adjacent support arm 332, and the two slide plates 320 can be moved synchronously, thereby facilitating use by the user.

[0030] like Figure 1 As shown, in this embodiment, the moving mechanism 200 includes:

[0031] The U-shaped frame 210, hydraulic cylinder 220, and connecting plate 230 are connected. The bottom ends of the two arms of the U-shaped frame 210 are fixedly connected to two L-shaped plates 330 respectively. The hydraulic cylinder 220 is fixedly connected to the top surface of the U-shaped frame 210, and the movable end of the hydraulic cylinder 220 passes through the inner top surface of the U-shaped frame 210. The connecting plate 230 is slidably engaged between the two arms of the U-shaped frame 210. The top surface of the connecting plate 230 is fixedly connected to the movable end of the hydraulic cylinder 220, and the bottom surface of the connecting plate 230 is fixedly connected to a drive box 231, which contains a linear motor.

[0032] In practice, the spray gun on the spraying equipment can be fixed to the moving part of the linear motor using a connector. Then, the linear motor is started, causing its moving part to drive the spray gun to move back and forth, spraying the pipes inside the housing 100. The user can also start the hydraulic cylinder 220 to adjust the height of the linear motor for easy operation. After spraying, a hot air blower or other drying equipment can be connected to a hose, and the hose can be fixed to the moving part of the linear motor using a connector. The linear motor then drives the hose to dry the sprayed pipes. The linear motor, the hot air blower or other drying equipment, and the spraying equipment are all existing technologies and will not be described in detail here.

[0033] like Figure 4-6 As shown, in this embodiment, the rotating mechanism 400 includes:

[0034] The enclosure comprises two rails 410, two movable plates 420, two rotating rods 430, two collars 440, and abutment components. The two rails 410 are fixedly connected to two opposite inner sidewalls of the housing 100. The two movable plates 420 are located between the two rails 410, with both ends of each movable plate 420 slidably engaged with the interior of the two rails 410. One end of each of the two rotating rods 430 is rotatably connected to one side of each of the two movable plates 420. The inner sidewalls of the two collars 440 are slidably engaged with the outer sidewalls of the two rotating rods 430. An abutment component is provided between each collar 440 and the other end of the adjacent rotating rod 430. The abutment component includes multiple abutments 450, with each abutment 450 having a support rod 451 rotatably connected to both ends. One end of each of the two support rods 451 on each abutment 450 is rotatably connected to the other end of the adjacent rotating rod 430 and the outer sidewall of the adjacent collar 440. A bidirectional... Each screw 411 and each rail 410 is fixedly connected to a motor box 412 at one end. Each motor box 412 contains a drive motor. The motor shaft of each drive motor is fixedly connected to one end of an adjacent bidirectional screw 411. Each moving plate 420 has threaded holes at both ends. Each bidirectional screw 411 is screwed into an adjacent threaded hole. Each moving plate 420 is fixedly connected to a power box 421. Each power box 421 contains a power motor. The motor shaft of each power motor is fixedly connected to one end of an adjacent rotating rod 430. Each moving plate 420 is fixedly connected to multiple electric push rods 422. Each sleeve ring 440 has a ball bearing 441 on its outer wall. Multiple guide rods are fixedly connected between each sleeve ring 440 and the inner ring of an adjacent ball bearing 441. The movable ends of the multiple electric push rods 422 on each moving plate 420 are fixedly connected to the outer ring of the adjacent ball bearing 441.

[0035] In practice, after the pipe is lowered into the housing 100 by the support cloth 322, the pipe is positioned between the two movable plates 420. Two drive motors are activated to rotate adjacent bidirectional screws 411, causing the bidirectional screws 411 to move the two movable plates 420 synchronously towards or away from each other, thereby adjusting the distance between the two movable plates 420. This allows the rotating rods 430 on the two movable plates 420 to enter the pipe. Then, the electric push rod 422 is activated to move the adjacent ball bearings 441 and collar 440, causing the collar 440 to move through the adjacent support rods 451. The system moves multiple adjacent abutment blocks 450 away from the adjacent rotating rod 430, thereby positioning the pipe by contacting the inner wall of the pipe and positioning the central axis of the pipe to be on the same straight line as the central axis of the rotating rod 430. Then, two power motors can be started to drive the two rotating rods 430 to rotate, thereby driving the pipe to rotate. The pipe is then sprayed with the spray gun of the spraying equipment. After the pipe enters the box 100, two cylinders 331 can be started to adjust the distance between the two slide plates 320 and move the support cloth 322 so that it does not stick to the pipe, reducing the impact on the spraying operation. Example 2

[0036] Based on Embodiment 1, a guide plate 321 is provided to facilitate pipeline transportation.

[0037] like Figure 2-3 As shown, in this embodiment, inclined guide plates 321 are fixedly connected to the opposite sides of the two sliding plates 320.

[0038] In practice, when the pipe is rolled onto the slide plate 320, it can be rolled by the inclined guide plate 321, which makes it easier for the user to use.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A PCCP pipe anti-corrosion protective layer spraying device, characterized in that, include: Box (100); A moving mechanism (200) is located above the housing (100); The lowering mechanism (300) is located above the box (100). The lowering mechanism (300) includes two guide rails (310), and the two guide rails (310) are respectively located above the two ends of the box (100). Two slide plates (320) are arranged between the two guide rails (310). The two ends of any slide plate (320) are slidably engaged with the two guide rails (310). A support cloth (322) is fixedly connected between the two slide plates (320). The rotating mechanism (400) is located inside the housing (100).

2. The PCCP pipe anti-corrosion protective layer spraying device according to claim 1, characterized in that, Two guide rails (310) are fixedly connected to L-shaped plates (330) on opposite sides. A cylinder (331) is fixedly connected to one end of each L-shaped plate (330). Two support arms (332) are rotatably connected to the movable end of each cylinder (331). One end of each of the two support arms (332) on each cylinder (331) is rotatably connected to the adjacent ends of the two slide plates (320).

3. The PCCP pipe anti-corrosion protective layer spraying device according to claim 2, characterized in that, Both of the two slide plates (320) are fixedly connected to inclined guide plates (321) on opposite sides.

4. The PCCP pipe anti-corrosion protective layer spraying device according to claim 2, characterized in that, The moving mechanism (200) includes: The bottom ends of the two arms of the U-shaped frame (210) are fixedly connected to the two L-shaped plates (330) respectively; A hydraulic cylinder (220) is fixedly connected to the top surface of the U-shaped frame (210), and the movable end of the hydraulic cylinder (220) penetrates the inner top surface of the U-shaped frame (210); The connecting plate (230) is slidably snapped between the two arms of the U-shaped frame (210). The top surface of the connecting plate (230) is fixedly connected to the movable end of the hydraulic cylinder (220), and the bottom surface of the connecting plate (230) is fixedly connected to the drive box (231), which is equipped with a linear motor.

5. The PCCP pipe anti-corrosion protective layer spraying device according to claim 1, characterized in that, The rotating mechanism (400) includes: Two rails (410) are fixedly connected to the two opposite inner side walls of the housing (100), respectively; Two movable plates (420) are located between the two said rails (410), and the two ends of any movable plate (420) are respectively slidably engaged with the two rails (410); Two rotating rods (430) are rotatably connected at one end to one side of the two movable plates (420); Two collars (440) have their inner sidewalls slidably sleeved with the outer sidewalls of the two rotating rods (430), and an abutting component is provided between each collar (440) and the other end of the adjacent rotating rod (430); The abutment assembly includes multiple abutment blocks (450), each abutment block (450) having a support rod (451) rotatably connected to both ends. One end of each of the two support rods (451) on the abutment block (450) is rotatably connected to the other end of the adjacent rotating rod (430) and the outer wall of the adjacent collar (440), respectively.

6. The PCCP pipe anti-corrosion protective layer spraying device according to claim 5, characterized in that, Each of the two ends of any rail (410) is rotatably connected to a bidirectional screw (411), and one end of any rail (410) is fixedly connected to a motor box (412). Each motor box (412) is equipped with a drive motor, and the motor shaft of each drive motor is fixedly connected to one end of the adjacent bidirectional screw (411). Each of the two ends of any moving plate (420) is provided with threaded holes, and each bidirectional screw (411) is screwed into the adjacent threaded hole.

7. The PCCP pipe anti-corrosion protective layer spraying device according to claim 5, characterized in that, Each movable plate (420) is fixedly connected to a power box (421), each power box (421) is equipped with a power motor, the motor shaft of each power motor is fixedly connected to one end of the adjacent rotating rod (430), each movable plate (420) is fixedly connected to multiple electric push rods (422), each sleeve ring (440) is equipped with a ball bearing (441) on its outer wall, each sleeve ring (440) is fixedly connected to the inner ring of the adjacent ball bearing (441) with multiple guide rods, and the movable ends of the multiple electric push rods (422) on each movable plate (420) are fixedly connected to the outer ring of the adjacent ball bearing (441).

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