A device for spraying a cement mortar for lining a pipe

Abstract

The utility model discloses a pipeline lining cement mortar spraying device, including the bottom plate, the bottom plate is equipped with the bin through the branch leg, the bin bottom is connected with the distributing chute through the conveying device, the distributing chute is installed on the bottom plate through the distributing chute branch leg, the bottom of distributing chute is connected with first connecting pipe, one side of first connecting pipe is equipped with the air pump, first connecting pipe is connected with second connecting pipe through the swivel joint, and the rotating device is installed on second connecting pipe, and the supporting block is rotatably sleeved on second connecting pipe, the supporting block is installed on the bottom plate through the supporting block support, and the spraying device is installed at the end of second connecting pipe, the bottom of bottom plate is installed the hydraulic cylinder, and the driving wheel is installed at the bottom of hydraulic cylinder. By using the present application, the cement mortar spraying can be carried out on the inner wall of the pipeline with different diameters, and the automatic troweling can be carried out.

Description

Technical Field

[0001] This utility model relates to the field of construction machinery technology, and in particular to a pipe lining cement mortar spraying device. Background Technology

[0002] Cement mortar spraying technology for pipeline lining is a core process for pipeline corrosion and seepage prevention in fields such as water supply and drainage, and petrochemicals. With the expansion of urban underground pipe networks and the surge in demand for the renovation of aging pipelines, the limitations of traditional construction methods are becoming increasingly apparent. Traditional coating often relies on manual labor, which depends on worker experience, resulting in low construction speed, unstable construction quality, and difficulty in ensuring consistent quality. Although some spraying devices exist, they suffer from limitations such as inability to quantitatively feed material, inability to adapt to pipe walls of various diameters, and inability to smooth the inner wall after spraying. Therefore, we propose a cement mortar spraying device for pipeline lining to address these issues. Utility Model Content

[0003] This utility model provides a pipe lining cement mortar spraying device, which solves the problems of traditional cement mortar spraying devices that cannot quantitatively feed materials, cannot adaptively adjust the height, and cannot perform leveling.

[0004] This utility model provides a cement mortar spraying device for pipe lining, including a base plate. A hopper is mounted on the base plate via support legs. A distribution hopper is connected to the bottom of the hopper via a conveying device. The distribution hopper is mounted on the base plate via distribution hopper support legs. A first connecting pipe is connected to the bottom of the distribution hopper. An air pump is installed on one side of the first connecting pipe. A second connecting pipe is connected to the first connecting pipe via a rotary joint. A rotating device is installed on the second connecting pipe. A support block is rotatably fitted on the second connecting pipe. The support block is mounted on the base plate via a support block bracket. A spraying device is installed at the end of the second connecting pipe. A hydraulic cylinder is installed at the bottom of the base plate. A drive wheel is installed at the bottom of the hydraulic cylinder.

[0005] Preferably, the conveying device includes a conveying bin connected to the bottom of the silo, a conveying pipe connected to the end of the conveying bin, a conveying shaft rotatably installed inside the conveying bin and the conveying pipe, and the conveying shaft is driven by a first motor installed outside the conveying bin.

[0006] Preferably, the rotating device includes a slave belt roller fixedly sleeved on the second connecting pipe, the slave belt roller being connected to a main belt roller via a belt, the main belt roller being mounted on a second motor, and the second motor being mounted on the base plate.

[0007] Preferably, the spraying device includes a fixing block fixedly sleeved on the second connecting pipe, a first diverter pipe symmetrically connected to the end of the second connecting pipe, a telescopic pipe connected to the first diverter pipe, a second diverter pipe connected to the telescopic pipe, a scraper fixing block fixedly installed on the second diverter pipe, a spray head installed at the end of the second diverter pipe, the fixing block and the scraper fixing block being connected by an electric telescopic rod, a sliding groove installed on the fixing block, a slider installed on the scraper fixing block, the slider engaging with the sliding groove, and a scraper installed on the scraper fixing block.

[0008] Preferably, a pressure gauge is installed on the first connecting pipe.

[0009] Preferably, the telescopic tube is a corrugated pipe.

[0010] Preferably, the surface of the scraper is coated with a silicon carbide coating.

[0011] Preferably, the nozzle is a threaded, detachable nozzle.

[0012] As can be seen from the above technical solution, this utility model provides a cement mortar spraying device for pipe lining. When using this application, the mixed cement mortar is first added to the hopper, and the hydraulic cylinder is adjusted so that the center of the fixed block is exactly located at the center of the pipe. The electric telescopic rod is adjusted so that the scraper is in contact with the inner wall of the pipe. At this time, the spraying operation can begin. During spraying, the drive wheel drives the device to move along the pipe, and the first motor is started at the same time. The first motor drives the conveyor shaft to rotate, and the cement mortar is transported to the distribution hopper along the conveyor shaft. The air pump is started, and the air pump transports the cement mortar along the first connecting pipe and the second connecting pipe to the spraying device. The second motor is started, and the second motor drives the spraying device to rotate through the belt. In the spraying device, the cement mortar passes through the first diversion pipe, the telescopic pipe and the second diversion pipe and is finally sprayed onto the inner wall of the pipe by the nozzle. While the spraying device is rotating, the scraper can smooth the cement mortar. The equipment continues to run until the spraying is completed.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. Cement can be quantitatively conveyed through a conveying device, a distribution hopper, and an air pump, making cement spraying more controllable and uniform;

[0015] 2. The height of the equipment and the rotation radius of the spraying device can be changed by the cooperation of the hydraulic cylinder and the electric telescopic rod to adapt to pipes of different diameters;

[0016] 3. The scraper installed on the spraying device can smooth the pipe wall after spraying, and the scraper rotates synchronously with the spray head, so it can be smoothed immediately after spraying, which significantly increases the reliability of the equipment.

[0017] In summary, by using this fundamental application, cement can be delivered efficiently and quantitatively. The spraying radius can also be adaptively adjusted according to the inner diameter of the pipeline to achieve better spraying results. Furthermore, the cement can be smoothed during spraying, thus achieving the goal of automated construction. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the implementation examples will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of a cement mortar spraying device for pipe lining proposed in this utility model.

[0020] Figure 2 This is a schematic diagram of the conveying device structure of a cement mortar spraying device for pipe lining proposed in this utility model;

[0021] Figure 3 This is a schematic diagram of the spraying device structure of a cement mortar spraying device for pipe lining proposed in this utility model.

[0022] In the diagram: 1. Base plate; 2. Support leg; 3. Hopper; 4. Conveying device; 401. Conveying bin; 402. Conveying pipe; 403. Conveying shaft; 404. First motor; 5. Distribution hopper; 6. Distribution hopper support leg; 7. First connecting pipe; 8. Air pump; 9. Second connecting pipe; 10. Support block; 11. Support block bracket; 12. Spraying device; 121. Fixing block; 122. First diversion pipe; 123. Telescopic pipe; 124. Second diversion pipe; 125. Spray nozzle; 126. Scraper fixing block; 127. Electric telescopic rod; 128. Slide groove; 129. Slider; 130. Scraper; 13. Hydraulic cylinder; 14. Drive wheel; 15. Belt roller; 16. Belt; 17. Main belt roller; 18. Second motor; 19. Pressure gauge; 20. Rotary joint. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0024] See Figure 1-3A cement mortar spraying device for pipe lining is applied in the field of construction machinery technology. It can spray cement mortar onto the inner wall of pipes of different diameters and automatically smooth it. Specifically, the system includes a base plate 1, on which a hopper 3 is mounted via support legs 2. A distribution hopper 5 is connected to the bottom of the hopper 3 via a conveying device 4. Cement mortar in the hopper 3 is conveyed to the distribution hopper 5 via the conveying device 4. The distribution hopper 5 is mounted on the base plate 1 via distribution hopper support legs 6. A first connecting pipe 7 is connected to the bottom of the distribution hopper 5. The distribution hopper 5 has a conical design, and the connection to the first connecting pipe 7 allows for automatic accumulation of mortar within the first connecting pipe 7. An air pump 8 is installed on one side of the first connecting pipe 7, which delivers mortar into the first connecting pipe 7, providing power for the transport of cement mortar. A pressure gauge 19 is installed on the first connecting pipe 7 to monitor the pressure in real time, preventing damage from excessive pressure or insufficient pressure from causing insufficient transport power. The first connecting pipe 7 is connected to a second connecting pipe 9 via a rotary joint 20. The connector 20 ensures that the second connecting pipe 9 can rotate freely while the first connecting pipe 7 remains stationary. A rotating device is installed on the second connecting pipe 9, allowing it to rotate. A support block 10 is rotatably fitted onto the second connecting pipe 9, and the support block 10 is mounted on the base plate 1 via a support block bracket 11. The support block 10 provides support to the second connecting pipe 9, ensuring its free rotation. A spraying device 12 is installed at the end of the second connecting pipe 9. While the second connecting pipe 9 rotates, the spraying device 12 sprays cement mortar onto the inner wall of the pipe and smooths it. A hydraulic cylinder 13 is installed at the bottom of the base plate 1, and a drive wheel 14 is installed at the bottom of the hydraulic cylinder 13. The hydraulic cylinder 13 can adjust the height of the equipment, cooperating with the spraying device 12 to adapt to pipes of various sizes. This application allows for automatic spraying and smoothing of the inner walls of pipes with different diameters, and the spraying amount is adjustable, significantly improving the coating quality of the inner walls and reducing labor.

[0025] In this utility model, the conveying device 4 includes a conveying bin 401 connected to the bottom of the silo 3. The end of the conveying bin 401 is connected to a conveying pipe 402. A conveying shaft 403 is rotatably installed inside the conveying bin 401 and the conveying pipe 402. The conveying shaft 403 is driven by a first motor 404 installed on the outside of the conveying bin 401. When the first motor 404 rotates, it drives the conveying shaft 403 to rotate, which can convey cement mortar along the direction of the conveying pipe 402 and finally convey the cement mortar to the distribution hopper 5. The conveying speed of the cement mortar can be adjusted by adjusting the speed of the first motor 404.

[0026] In this utility model, the rotating device includes a secondary belt roller 15 fixedly sleeved on the second connecting pipe 9. The belt roller 15 is connected to a main belt roller 17 via a belt 16. The main belt roller 17 is mounted on a second motor 18, which is mounted on the base plate 1. When the second motor 18 is started, it drives the second connecting pipe 9 to rotate via the belt 16. The speed of the second motor 18 can be adjusted according to the actual usage, thereby changing the speed of the spraying device 12 during spraying.

[0027] In this invention, the spraying device 12 includes a fixing block 121 fixedly sleeved on the second connecting pipe 9. The fixing block 121 can support other equipment. A first diversion pipe 122 is symmetrically connected to the end of the second connecting pipe 9. The first diversion pipe 122 can divide the cement mortar into two streams. A telescopic pipe 123 is connected to the first diversion pipe 122. The telescopic pipe 123 can generate a certain amount of expansion and contraction when the spray head 125 moves up and down. The telescopic pipe 123 of this application is a corrugated pipe, which is inexpensive and has good extensibility. The telescopic pipe 123 is connected to a second diversion pipe 124. A scraper fixing block 126 is fixedly installed on the second diversion pipe 124. The scraper fixing block 126 is fixedly sleeved on the second diversion pipe 124 and can move the second diversion pipe 124 up and down. A nozzle 125 is installed at the end. The nozzle 125 is a threaded, detachable nozzle that can be freely replaced according to spraying needs and is easy to maintain. The fixing block 121 and the scraper fixing block 126 are connected by an electric telescopic rod 127. The electric telescopic rod 127 can drive the scraper fixing block 126 to move up and down. A sliding groove 128 is installed on the fixing block 121, and a slider 129 is installed on the scraper fixing block 126. The slider 129 is engaged with the sliding groove 128. The sliding groove 128 and the slider 129 can maintain the stability of the connection between the fixing block 121 and the scraper fixing block 126 and prevent deformation of the equipment during operation. A scraper 130 is installed on the scraper fixing block 126. The surface of the scraper 130 is covered with a silicon carbide coating, which can significantly enhance the wear resistance of the scraper 130 and improve the service life of the equipment.

[0028] As can be seen from the above technical solution, during use, the mixed cement mortar is first added to the hopper 3, and the hydraulic cylinder 13 is adjusted so that the center of the fixed block 121 is exactly located at the center of the pipe. The electric telescopic rod 127 is then adjusted so that the scraper 130 is in contact with the inner wall of the pipe. At this point, the spraying operation can begin. During spraying, the drive wheel 14 drives the device to move along the pipe, and at the same time, the first motor 404 is started. The first motor 404 drives the conveyor shaft 403 to rotate, and the cement mortar is transported along the conveyor shaft 403 to the distribution hopper 5. The air pump 8 is started, and the air pump 8 delivers cement mortar along the first connecting pipe 7 and the second connecting pipe 9 to the spraying device 12. The second motor 18 is started, and the second motor 18 drives the spraying device 12 to rotate through the belt 16. In the spraying device 12, the cement mortar passes through the first diversion pipe 122, the telescopic pipe 123 and the second diversion pipe 124 and is finally sprayed onto the inner wall of the pipe by the nozzle 125. While the spraying device 12 is rotating, the scraper 130 can smooth the cement mortar. The equipment continues to run until the spraying is completed.

[0029] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of the invention is indicated by the claims.

[0030] It should be understood that this utility model is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model.

Claims

1. A pipe lining cement mortar spraying device, comprising a base plate (1), characterized in that: A hopper (3) is installed on the base plate (1) via a support leg (2). A distribution hopper (5) is connected to the bottom of the hopper (3) via a conveying device (4). The distribution hopper (5) is installed on the base plate (1) via a distribution hopper support leg (6). A first connecting pipe (7) is connected to the bottom of the distribution hopper (5). An air pump (8) is installed on one side of the first connecting pipe (7). A second connecting pipe (9) is connected to the first connecting pipe (7) via a rotary joint (20). A rotating device is installed on the second connecting pipe (9). A support block (10) is rotatably sleeved on the second connecting pipe (9). The support block (10) is installed on the base plate (1) via a support block bracket (11). A spraying device (12) is installed at the end of the second connecting pipe (9). A hydraulic cylinder (13) is installed at the bottom of the base plate (1). A drive wheel (14) is installed at the bottom of the hydraulic cylinder (13).

2. The pipe lining cement mortar spraying device according to claim 1, characterized in that, The conveying device (4) includes a conveying bin (401) connected to the bottom of the silo (3), and a conveying pipe (402) connected to the end of the conveying bin (401). A conveying shaft (403) is rotatably installed inside the conveying bin (401) and the conveying pipe (402). The conveying shaft (403) is driven by a first motor (404) installed outside the conveying bin (401).

3. The pipe lining cement mortar spraying device according to claim 1, characterized in that, The rotating device includes a secondary belt roller (15) fixedly sleeved on the second connecting pipe (9), the belt roller (15) being connected to a main belt roller (17) via a belt (16), the main belt roller (17) being mounted on a second motor (18), and the second motor (18) being mounted on the base plate (1).

4. The pipe lining cement mortar spraying device according to claim 1, characterized in that, The spraying device (12) includes a fixing block (121) fixedly sleeved on the second connecting pipe (9). The end of the second connecting pipe (9) is symmetrically connected to a first diversion pipe (122). A telescopic pipe (123) is connected to the first diversion pipe (122). The telescopic pipe (123) is connected to a second diversion pipe (124). A scraper fixing block (126) is fixedly installed on the second diversion pipe (124). A nozzle (125) is installed at the end of the second diversion pipe (124). The fixing block (121) and the scraper fixing block (126) are connected by an electric telescopic rod (127). A sliding groove (128) is installed on the fixing block (121). A slider (129) is installed on the scraper fixing block (126). The slider (129) is engaged with the sliding groove (128). A scraper (130) is installed on the scraper fixing block (126).

5. The pipe lining cement mortar spraying device according to claim 1, characterized in that, A pressure gauge (19) is installed on the first connecting pipe (7).

6. The pipe lining cement mortar spraying device according to claim 4, characterized in that, The telescopic tube (123) is made of corrugated pipe.

7. A pipe lining cement mortar spraying device according to claim 4, characterized in that, The surface of the scraper (130) is covered with a silicon carbide coating.

8. A pipe lining cement mortar spraying device according to claim 4, characterized in that, The nozzle (125) is a threaded, detachable nozzle.

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