Pipeline spraying repairing device

Abstract

The utility model discloses a pipeline spraying repair device, which relates to the technical field of pipeline maintenance, and comprises a hard middle shaft rod piece, two disc frames and a middle rotating body, the disc frames and the middle rotating body are connected in series by taking the hard transmission middle shaft rod piece as a shaft, the two disc frames are symmetrically fixed at two ends of the hard middle shaft rod piece, and the middle rotating body is connected with the disc frames. And the middle rotating body is rotationally connected between the two disc frames. Through cooperation of the air-drying type atomizing spray gun and the adaptive mechanical arm rod piece, the pipe wall can be rapidly dried, needed materials can be sprayed, the construction efficiency is improved, the air-drying type atomizing spray gun can be adjusted to the position suitable for the pipe diameter size through the adaptive mechanical arm rod piece, it is ensured that spraying is even, and material waste is avoided; and due to the design of the supporting walking mechanism, the spraying device can freely move in the pipeline, and the device can be adjusted through the walking adjusting mechanism so as to adapt to pipelines with different diameters, and the universality of the device is improved.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline maintenance technology, specifically relating to a pipeline spraying repair device. Background Technology

[0002] In recent years, with the rapid development of water conservancy, the construction of inter-basin water transfer projects has been increasing. Water pipelines are an important component of these projects. In freshwater transport projects, pipelines are in constant contact with the aquatic environment, leading to corrosion of the pipeline's inner walls by corrosive substances in the water. This causes pipeline damage, reduced structural strength, and decreased durability, potentially resulting in safety accidents. Pipeline corrosion also leads to water pollution, impacting economic benefits and even personal safety.

[0003] To address the issue of inner wall erosion, preventative anti-corrosion treatment is performed on the inner wall of the pipe using anti-corrosion coatings. Traditional anti-corrosion methods involve manual application of the coating. Manual operation is limited by pipe length and working environment, resulting in low work efficiency and uneven anti-corrosion layer. Furthermore, existing spraying equipment is mostly designed for fixed pipe diameters and cannot be adapted to pipes with different inner diameters, leading to low equipment reuse rates. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a pipe spraying repair device. By linking a rigid central shaft rod, a rotating body, and an adaptive robotic arm to adjust the radial position of the spray gun, and combining a rotation drive and a support walking mechanism, it can achieve efficient and uniform spraying and precise positioning of the inner wall of pipes of different diameters.

[0005] The solution adopted by this utility model to solve its technical problem is as follows: a pipe spraying repair device, including a rigid central shaft, a disc frame, and an intermediate rotating body. The disc frame and the intermediate rotating body are connected in series with the rigid central shaft as the axis. There are two disc frames, which are symmetrically fixed at both ends of the rigid central shaft. The intermediate rotating body is rotatably connected between the two disc frames, and a rotary drive mechanism for driving the intermediate rotating body to rotate is provided on the disc frame. Multiple sets of rotary translation support rods are distributed around the intermediate rotating body. The rotary translation support rods are slidably connected to the rigid central shaft by pulleys at their ends. An adaptive robotic arm rod is installed on the rotary translation support rod. The end of the adaptive robotic arm rod is equipped with a drying atomizing spray gun. A support walking mechanism is provided on the disc frame. The entire spraying device is supported at the center of the pipe and moves within the pipe through the support walking mechanism. A walking adjustment mechanism for controlling the extension and retraction of the support walking mechanism is provided on the disc frame.

[0006] Furthermore, the supporting walking mechanism includes support rods and walking wheels. There are multiple support rods distributed around the front side of one of the disc frames, and each support rod is slidably fitted onto the disc frame. The walking wheels are installed at the lower end of the support rods and are driven by a motor for the lateral movement of the entire device.

[0007] Furthermore, the rotary drive mechanism includes a rotary motor and a power gear. A gear ring is fixedly fixed around the inner wall of the intermediate rotating body. The rotary motor is mounted on the disc frame. The output end of the rotary motor is fixedly connected to a rotating shaft. The rotating shaft is rotatably mounted on two disc frames, and a power gear that meshes with the gear ring is fixedly mounted on it.

[0008] Furthermore, the walking adjustment mechanism includes a central drive shaft that moves through a rigid central shaft and is rotatably mounted on a disc frame. A main bevel gear is fixedly mounted on the front end of the central drive shaft, and a throttle is provided at the rear end. A locking bolt is installed on the throttle to lock it in place. Multiple screws are arranged around the front side of the disc frame that supports the walking mechanism via a bearing seat. A driven bevel gear is fixedly mounted on the front end of each screw, and each driven bevel gear meshes with the main bevel gear. A threaded hole is provided on the support rod along the direction of the rod body, and the rear end of the screw is threadedly fitted into the threaded hole of the support rod.

[0009] Furthermore, a boss is fixed to the side wall of the intermediate rotating body, and a rotational translation support rod is fixedly installed inside the intermediate rotating body through the boss. A pulley is movably installed at the inner end of the rotational translation support rod by means of a pin. The pulley is slidably connected to the surface of the rigid central shaft member and can move left and right and rotate 360 ​​degrees around the rigid central shaft member.

[0010] Furthermore, the adaptive robotic arm link consists of two connecting rods connected by a rotary joint. One connecting rod is an automatic telescopic connecting rod and is connected to a rotary translation support rod by a pin. The other connecting rod is equipped with an air-drying atomizing spray gun.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention, through the combination of a drying atomizing spray gun and an adaptive robotic arm, enables rapid drying of pipe walls and spraying of required materials, improving construction efficiency. The adaptive robotic arm can adjust the drying atomizing spray gun to a position suitable for the pipe diameter, ensuring uniform spraying and avoiding material waste. The design of the supporting walking mechanism allows the spraying device to move freely within the pipe and can be adjusted via the walking adjustment mechanism to adapt to pipes of different diameters, improving the device's versatility. The rotary drive mechanism and climbing wheels enable the central rotating body to drive the drying atomizing spray gun to rotate at a uniform speed within the pipe. The use of a rotary motor and power gears achieves automatic rotation of the central rotating body, ensuring the stability of the spraying device during operation, avoiding uneven spraying, and reducing manual intervention. Attached Figure Description

[0013] Figure 1 This is one of the overall structural schematic diagrams of this utility model;

[0014] Figure 2 This is the second schematic diagram of the overall structure of this utility model;

[0015] Figure 3 This is an exploded view of the present invention;

[0016] Figure 4 This is a schematic diagram of the supporting walking mechanism and the walking adjustment mechanism of this utility model.

[0017] In the diagram: 1. Rigid central shaft; 2. Support walking mechanism; 21. Support rod; 22. Walking wheel; 23. Guide block; 3. Disc frame; 4. Central rotating body; 5. Walking adjustment mechanism; 51. Central drive shaft; 52. Main bevel gear; 53. Shaft seat; 54. Screw; 55. Driven bevel gear; 56. Throttle; 6. Rotary drive mechanism; 61. Rotary motor; 62. Power gear; 63. Rotating shaft; 64. Gear ring; 7. Boss; 8. Adaptive robotic arm rod; 9. Air-drying atomizing spray gun; 10. Rotating and translating support rod; 11. Pulley; 12. Auxiliary walking wheel. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Please see Figure 1-4 This utility model provides a technical solution for a pipeline spraying repair device: Example

[0020] according to Figure 1 and Figure 2As shown, a pipe spraying repair device is used to solve the problem of repairing damage to the inner wall of water pipelines during transportation. The spraying device includes a rigid central shaft 1, a disc frame 3, and a central rotating body 4. The overall spraying device is disc-shaped, connected in series around the rigid central shaft 1. Specifically, two disc frames 3 are fixed to both ends of the rigid central shaft 1, and the central rotating body 4 is positioned between the two disc frames 3 and slidably connected to the rigid central shaft 1. A rotation drive mechanism 6 for controlling the rotation of the central rotating body 4 is installed within the disc frame 3. These structures cooperate to form the main structure of the spraying device. The central rotating body 4 is evenly coated with... Multiple sets of rotating and translating support rods 10 are arranged, and the rotating and translating support rods and rigid central shaft rods 1 are slidably connected by pulleys 11. Adaptive robotic arm rods 8 are installed on the rotating and translating support rods 10, and air-drying atomizing spray guns 9 are installed at the ends of the adaptive robotic arm rods 8. During operation, the air-drying atomizing spray guns 9 are connected to the paint tank through the material pipe, and the adaptive robotic arm rods 8 are adjusted to the position that adapts to the pipe diameter. Multiple air-drying atomizing spray guns 9 can spray the required material on the inner wall of the pipe and dry the pipe wall. A set of supporting walking mechanism 2 is installed on the spraying device, and the entire spraying device is supported in the pipe and moves in the pipe through the supporting walking mechanism 2.

[0021] The supporting walking mechanism 2 includes support rods 21 and walking wheels 22. There are multiple support rods 21, which are distributed around the front of any one of the disc frames 3. The walking wheels 22 are installed at the lower end of the support rods 21. The walking wheels 23 are used for the lateral movement of the entire device. They are driven by a motor and can control the lateral movement of the entire device. A walking adjustment mechanism 5 is provided on the disc frame 3 to control the adaptive extension and retraction of the supporting walking mechanism 2. Through the walking adjustment mechanism 5, the supporting walking mechanism 2 can be extended, retracted and fixed to a predetermined height. In actual use, after the spraying device is sent into the inner wall of the pipe, the position of the spraying device in the pipe can be adjusted by adjusting the extension of the supporting walking mechanism 2, so that the main structure of the device is exactly in the center of the pipe. This avoids the problem of uneven spraying of repair material when the spraying device is working. The walking wheels 23 enable the entire spraying device to move back and forth in the pipe. Driven by the motor, the walking wheels 23 can drive the entire spraying device to move along the inner wall of the pipe, realizing forward repair inside the pipe.

[0022] The main body of the spraying device has two disc frames 3, symmetrically arranged at both ends of the central rotating body 4. A rigid central shaft 1 passes through the center of the central rotating body 4 and is fixed to the disc frames 3 on both sides. The outer diameter of the disc frames 3 is the same as the outer diameter of the central rotating body 4. Figure 3 and Figure 4As shown, the rotary drive mechanism 6 includes a rotary motor 61, a power gear 62, and a rotating shaft 63. A gear ring 64 is fixedly fixed around the inner wall of the intermediate rotating body 4. The rotating shaft 63 is rotatably mounted between the two disc frames 3. The power gear 62 is fixedly mounted on the rotating shaft 63 and meshes with the gear ring 64. The power gear 62 is powered by the rotary motor 61. The rotary motor 61 is mounted on one side of the disc frame 3 and is connected to the rotating shaft 63. The intermediate rotating body 4 is connected to the disc frame 3 through the gear ring 64 and the power gear 62. Thus, the intermediate rotating body 4 is driven to rotate around the rigid central shaft 1 by the meshing force of the power gear 62 and the gear ring 64.

[0023] like Figure 3 As shown, three sets of rotational translational support rods 10 are evenly distributed around the interior of the intermediate rotating body 4, forming a three-axis rotational translational support rod group. A boss 7 is fixed to the side wall of the intermediate rotating body 4, and the rotational translational support rods 10 pass through the boss 7 and are fixedly installed inside the intermediate rotating body 4. A pulley 11 is movably installed at the inner end of the rotational translational support rod 10 by a pin. The three-axis rotational translational support rod group is connected to the rigid central shaft member 1 through the pulley 11 at its inner end. The pulley 11 is designed to be embedded, and the concave surface of the pulley 11 is in contact with the surface of the rigid central shaft member 1, so that the pulley 11 can move left and right and rotate 360 ​​degrees around the rigid central shaft member 1, thereby improving the stability of the intermediate rotating body 4 when rotating around the rigid central shaft member 1.

[0024] An adaptive robotic arm 8 is arranged around the outside of the central rotating body 4. Specifically, the adaptive robotic arm 8 is connected to the outer end of the rotating translation support rod 10 by a pin. The adaptive robotic arm 8 consists of two connecting rods, which are connected by a rotating joint. The connecting rod directly connected to the rotating translation support rod 10 is an automatic telescopic connecting rod, such as an electric push rod or a hydraulic push rod, which can control the extension and retraction of the rod so that the adaptive robotic arm 8 can fit and adapt to the inner wall of the pipe, making it convenient for the spraying device to spray the repair material evenly and accurately.

[0025] The air-drying atomizing spray gun 9 is installed on the adaptive robotic arm link 8. Specifically, multiple sets of air-drying atomizing spray guns 9 are embedded on the other outer connecting rod of each adaptive robotic arm link 8. The air-drying atomizing spray gun 9 is connected to the adaptive robotic arm link 8 by embedding. The air-drying atomizing spray gun 9 includes a spray gun and a fan. The spray gun is connected to the material box outside the pipe through a material pipe, which delivers coating to the air-drying atomizing spray gun 9 for spraying polyvinyl chloride and other repair sprays on the inner wall of the pipe, thereby starting the repair work on the damaged parts of the pipe. The fan on the air-drying atomizing spray gun 9 is used to pre-dry the inner wall of the pipe. When the spraying device is working, the fan on the air-drying atomizing spray gun 9 will first dry the pipe wall to ensure that the inner wall of the pipe is dry. After that, the spray gun sprays polyurethane, epoxy resin and other lining materials onto the pipe wall to repair the pipe.

[0026] like Figure 4 As shown, the walking adjustment mechanism 5 includes a central drive shaft 51 that movably passes through a rigid central shaft rod 1 and is rotatably mounted on a disc frame 3. A main bevel gear 52 is fixedly mounted at the front end of the central drive shaft 51, and a throttle 56 is provided at the rear end. A locking bolt is installed on the throttle 56 to lock it in place. Multiple screws 54 are arranged around the front side of the disc frame 3, which supports the walking mechanism, along the central axis and via a bearing seat 53. A driven bevel gear 55 is fixedly mounted at the front end of each screw 54, and each driven bevel gear 55 meshes with the main bevel gear 52. A threaded hole is provided on the support rod 21 along the rod body direction, and the rear end of the screw 54 is threaded onto... In the threaded hole of the support rod 21; in actual application, the side with the support walking mechanism and the walking adjustment mechanism is the forward direction. By rotating the handle 56, the central transmission shaft 31 and the main bevel gear 52 are driven to rotate. Under the meshing of the main bevel gear 52 and each of the driven bevel gears 55, each screw 54 is driven to rotate synchronously. Under the threaded engagement of the screw 54 and the threaded hole of the corresponding support rod 21, each support rod 21 can be driven to move outward or towards the center to extend and retract, thereby achieving the effect of adjusting the support range of the support walking mechanism 2, so that the support walking mechanism 2 can be applied to pipes with different inner diameters and can stably support the operation inside the pipe.

[0027] A guide groove is provided on the outer wall of the circular frame 3 on the same side. Each support rod 21 is equipped with a guide block 23, and the guide block 23 is slidably fitted in the guide groove to guide the extension and retraction adjustment of the support walking mechanism 2. On the other side of the circular frame 3, an auxiliary walking wheel 12 is installed through a support rod to assist the nozzle device in moving stably in the pipeline. In order to cooperate with the adjustment of the support walking mechanism, the support rod is a telescopic rod, and its extension and retraction length is locked by a locking bolt.

[0028] In practical use, this utility model's pipe spraying repair device is inserted into the pipe. Then, the supporting walking mechanism 2 is adjusted to extend and retract, providing stable support inside the pipe. During adjustment, the handle 56 is rotated, driving the central drive shaft 31 and the main bevel gear 52 to rotate. Under the meshing of the main bevel gear 52 and each of the driven bevel gears 55, each screw 54 rotates synchronously. With the threaded engagement between the screw 54 and the threaded holes of the corresponding support rods 21, each support rod 21 is driven to expand outwards synchronously, allowing the device to be stably supported inside the pipe via the supporting walking mechanism 2. Then, by tightening... Tighten the bolts to lock the travel adjustment mechanism 5. Then, driven by the motor, the travel wheel 23 drives the entire spraying device to move forward along the inner wall of the pipe. During the movement of the spraying device, multiple air-drying atomizing spray guns 9 can dry the pipe wall and spray the required materials. At the same time, the rotary drive mechanism 6 starts synchronously, and the rotating motor 61 drives the power gear 62 to rotate. Under the meshing of the power gear 62 and the gear ring 64, the intermediate rotating body 4 and the air-drying atomizing spray guns 9 are driven to rotate around the rigid central shaft rod 1 and the disc frame 3, so that the paint is evenly sprayed on the inner wall of the pipe, realizing the spraying and repair work of the inner wall of the pipe. Example

[0029] Based on Embodiment 1, the intermediate rotating body 4 adopts a hollow design. The rotating translation support rod 10 and the adaptive robotic arm rod 8 extend through the hollow part of the intermediate rotating body 4. Its advantage is that it can reduce the overall weight of the spraying device, extend its working time in battery-powered mode, and provide enough space to fix the rotating translation support rod 10.

[0030] The above description is only a preferred embodiment of the present utility model and does not limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pipe spraying repair device, comprising a rigid central shaft (1), a disc frame (3), and an intermediate rotating body (4), characterized in that, The disc frame (3) and the intermediate rotating body (4) are connected in series with the rigid central shaft (1) as the axis. There are two disc frames (3) that are symmetrically fixed at both ends of the rigid central shaft (1). The intermediate rotating body (4) is rotatably connected between the two disc frames (3). A rotary drive mechanism (6) for driving the intermediate rotating body (4) to rotate is provided on the disc frame (3). Multiple sets of rotary translation support rods (10) are distributed around the intermediate rotating body (4). The rotary translation support rods (10) are slidably connected to the rigid central shaft (1) by pulleys (11) at the ends. An adaptive robotic arm rod (8) is installed on the rotary translation support rod (10). A drying atomizing spray gun (9) is installed at the end of the adaptive robotic arm rod (8). A support walking mechanism (2) is provided on the disc frame (3). A walking adjustment mechanism (5) for controlling the extension and retraction of the support walking mechanism (2) is provided on the disc frame (3).

2. The pipe spraying repair device according to claim 1, characterized in that: The supporting walking mechanism (2) includes a support rod (21) and a walking wheel (22). There are multiple support rods (21) and they are distributed around the front side of one of the disc frames (3). Each support rod (21) is oriented and slidably fitted on the disc frame (3). The walking wheel (22) is installed at the lower end of the support rod (21) and is driven by a motor for the left and right lateral movement of the whole device.

3. The pipe spraying repair device according to claim 1, characterized in that: The rotary drive mechanism (6) includes a rotary motor (61) and a power gear (62). The inner wall of the intermediate rotating body (4) is fixedly surrounded by a gear ring (64). The rotary motor (61) is mounted on the disc frame (3). The output end of the rotary motor (61) is fixedly connected to a rotating shaft (63). The rotating shaft (63) is rotatably mounted on two disc frames (3), and a power gear (62) that meshes with the gear ring (64) is fixedly mounted on it.

4. The pipe spraying repair device according to claim 2, characterized in that: The walking adjustment mechanism (5) includes a central drive shaft (51) that is movably inserted through a rigid central shaft rod (1) and rotatably mounted on a disc frame (3). The front end of the central drive shaft (51) is fixedly mounted with a main bevel gear (52), and the rear end is provided with a throttle (56). A locking bolt is installed on the throttle (56) to lock it. Multiple screws (54) are arranged around the front side of the disc frame (3) which is provided with the walking mechanism (2) via a shaft seat (53). The front end of the screw (54) is fixedly mounted with a driven bevel gear (55), and each driven bevel gear (55) meshes with the main bevel gear (52). A threaded hole is opened on the support rod (21) along the direction of the rod body, and the rear end of the screw (54) is threadedly mounted in the threaded hole of the support rod (21).

5. The pipe spraying repair device according to claim 1, characterized in that: The side wall of the intermediate rotating body (4) is fixed with a boss (7). The rotation and translation support rod (10) passes through the boss (7) and is fixedly installed inside the intermediate rotating body (4). A pulley (11) is movably installed at the inner end of the rotation and translation support rod (10) by means of a pin. The pulley (11) is slidably connected to the surface of the rigid central shaft member (1) and can move left and right and rotate 360 ​​degrees around the rigid central shaft member (1).

6. The pipe spraying repair device according to claim 5, characterized in that: The adaptive robotic arm link (8) consists of two connecting rods connected by a rotary joint. One connecting rod is an automatic telescopic connecting rod and is connected to the rotary translation support rod (10) by a pin. The other connecting rod is equipped with a drying atomizing spray gun (9).

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