Nozzle and injection machine for concrete pouring construction

Abstract

The utility model discloses a nozzle and injection machine for concrete pouring construction, which comprises a nozzle assembly, the nozzle assembly comprises a nozzle, the bottom end of the nozzle is inserted with a material conveying pipe, the top end of the nozzle is in threaded connection with a mounting shell, a threaded rod is arranged in the mounting shell, a blocking wheel is arranged outside the threaded rod through a flat key, and the blocking wheel is positioned in the mounting shell. Three grooves are formed in the outer part of the mounting shell; when the spraying amount of the nozzle is adjusted, the threaded rod can be rotated, so that the blocking wheel rotates, the positions of the grooves in the blocking wheel are changed, the face, with the grooves of different widths, of the blocking wheel is attached to the inner wall of the mounting shell, the amount of concrete flowing out of the position between the blocking wheel and the mounting shell is adjusted conveniently, and the spraying amount of the nozzle assembly is adjusted; the spraying amount can be adjusted without replacing the spraying head during concrete pouring, the continuity during concrete pouring is improved, and the problem that the pouring effect is affected due to discontinuous pouring is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete wet spraying equipment, specifically to nozzles and spraying machines for concrete pouring construction. Background Technology

[0002] Wet concrete spraying machines are concrete spraying equipment that features advanced technology, reasonable structure, stable performance, convenient operation and maintenance, and long service life. They are widely used in tunnels, culverts, subways, hydropower projects, underground engineering, and coal mine high-altitude tunnel construction.

[0003] A wet concrete spraying machine, as described in application number CN201720541770.6 and publication date 20171219, includes a base, a feeding screen, a main sprocket, a return sprocket, a compressed air pipe, a material chamber, and a mixing chamber. The feeding screen has a funnel-shaped hopper at its bottom, a material chamber extending vertically through the hopper, and a mixing chamber along the long side of the material chamber. A discharge elbow is welded to the bottom of the mixing chamber, and a compressed air pipe is welded to the top of the mixing chamber. A threaded shut-off valve is installed on the compressed air pipe. The material chamber and mixing chamber are fixedly mounted on the base via a bracket. The bracket has a screw-mounted main sprocket and a return sprocket, and a screw-mounted sealing piston on the chain. The bracket also has a bolt-mounted motor connected to the main sprocket via a transmission wheel. This invention has a simple structure and reasonable design; the design of the discharge elbow and compressed air pipe reduces dust concentration near the machine and outside the nozzle, improving the construction site environment, and is suitable for widespread use.

[0004] Most nozzles on wet concrete spraying machines are not adjustable. When it is necessary to adjust the concrete output, the nozzle needs to be replaced, resulting in poor continuity of concrete pouring and affecting the concrete pouring effect. Therefore, it is urgent to design nozzles and spraying machines for concrete pouring construction to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a nozzle and spraying machine for concrete pouring construction, so as to solve the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A nozzle for concrete pouring construction includes a nozzle assembly, wherein the nozzle assembly includes a nozzle, a material delivery pipe is inserted into the bottom end of the nozzle, a mounting shell is threadedly connected to the top end of the nozzle, and a threaded rod is provided inside the mounting shell. A blocking wheel is installed on the outside of the threaded rod through a flat key, and the blocking wheel is located inside the mounting shell. Three grooves are provided on the outside of the mounting shell.

[0008] A shotcrete machine for concrete pouring includes a frame. Universal wheels are bolted to the outer walls of both sides of the bottom of the frame. A mounting box is bolted to one outer wall of the top of the frame, and a partition frame is bolted inside the mounting box. Two mounting brackets are bolted to one outer wall of the partition frame, and a take-up reel is mounted inside the mounting bracket via bearings. The material delivery pipe of the nozzle assembly is wound inside the take-up reel. A second drive motor is bolted to one outer wall of the mounting bracket, and the output end of the second drive motor is fixedly connected to the take-up reel via a flat key. A door is provided on one outer wall of the mounting box.

[0009] Furthermore, a tray frame is bolted to one side of the outer wall of the partition frame, and the nozzle is snapped onto the tray frame.

[0010] Furthermore, a plunger pump and a filter cartridge are respectively provided on the outer walls of the top two sides of the vehicle frame, and the plunger pump is connected to the filter cartridge through a pipe. The plunger pump is connected to the nozzle assembly through a pipe, and a power module is provided on one outer wall of the top of the vehicle frame.

[0011] Furthermore, a perforated plate is bolted inside the filter cartridge, a drive motor is bolted to the top of the filter cartridge, and an auger shaft is bolted to the output end of the drive motor via a coupling. A return pipe is inserted into the outer wall of one side of the filter cartridge.

[0012] Furthermore, a mixing tank is bolted to one side of the outer wall of the top of the vehicle frame, and a can lid is hinged to one side of the outer wall of the mixing tank. The can lid is snapped onto the top of the mixing tank. One end of the return pipe extends into the interior of the mixing tank, and the filter cartridge is connected to the mixing tank through a pipe.

[0013] Furthermore, the bottom of the mixing tank is provided with a placement groove, and a drive motor is installed at the top center of the inner wall of the placement groove by bolts. The output end of the drive motor is connected to an auger shaft located inside the mixing tank by a coupling, and a connecting frame is installed at the top of the auger shaft by bolts. Multiple stirring rods are welded to the outer walls on both sides of the connecting frame.

[0014] In the above technical solution, the nozzle and spraying machine for concrete pouring construction provided by this utility model have the following beneficial effects:

[0015] (1) When the spray volume of the nozzle needs to be adjusted by setting the nozzle assembly, the threaded rod can be rotated to make the blocking wheel rotate, thereby changing the position of the groove on the blocking wheel. This allows the surface with grooves of different widths on the blocking wheel to be attached to the inner wall of the mounting shell, so as to adjust the amount of concrete flowing out between the blocking wheel and the mounting shell. This allows the spray volume of the nozzle assembly to be adjusted, so that the spray volume can be adjusted without replacing the nozzle during concrete pouring. This improves the continuity of concrete pouring and avoids the problem of discontinuous pouring affecting the pouring effect.

[0016] (2) When the concrete inside the mixing tank flows into the filter cylinder through the filter cylinder, the perforated plate can filter out the large particles in the concrete that have not been mixed and dispersed, so as to avoid the large particles from blocking the plunger pump. The subsequent drive motor will start, causing the auger shaft to rotate, so that the concrete particles intercepted by the perforated plate inside the filter cylinder move upward. Then the concrete particles will flow back into the mixing tank through the return pipe, so that the mixing structure inside the mixing tank can re-mix and disperse the undispersed concrete particles.

[0017] (3) By setting up the drive motor 2 and the winding wheel, after the concrete is poured, the drive motor 2 can be started to make the winding wheel wind up the nozzle assembly, thereby realizing the automatic winding of the nozzle assembly, reducing the difficulty of manual winding and improving the practicality of the device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of the nozzle and spraying machine for concrete pouring construction according to the present invention.

[0020] Figure 2 A schematic diagram of the frame, mixing tank, and mounting box structure provided for an embodiment of the nozzle and spraying machine for concrete pouring construction according to this utility model.

[0021] Figure 3 A schematic diagram of the filter cylinder structure provided for an embodiment of the nozzle and spraying machine for concrete pouring construction according to this utility model.

[0022] Figure 4 A schematic diagram of the nozzle assembly structure provided for an embodiment of the nozzle and spraying machine for concrete pouring construction according to this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Frame; 2. Casters; 3. Mixing tank; 4. Door; 5. Mounting slot; 6. Drive motor 1; 7. Screw shaft 1; 8. Connecting frame; 9. Stirring rod; 10. Tank lid; 11. Mounting box; 12. Power module; 13. Filter cartridge; 14. Plunger pump; 15. Divider frame; 16. Pallet frame; 17. Mounting frame; 18. Rewinding wheel; 19. Drive motor 2; 20. Nozzle assembly; 21. Drive motor 3; 22. Screw shaft 2; 23. Return pipe; 24. Perforated plate; 25. Nozzle; 26. Feed pipe; 27. Mounting shell; 28. Threaded rod; 29. ​​Blocking wheel; 30. Groove. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] like Figure 1-4 As shown, the nozzle for concrete pouring construction provided in this embodiment of the present invention includes a nozzle assembly 20, a nozzle 25, a material delivery pipe 26 inserted at the bottom end of the nozzle 25, a mounting shell 27 threadedly connected to the top end of the nozzle 25, a threaded rod 28 provided inside the mounting shell 27, a blocking wheel 29 installed outside the threaded rod 28 via a flat key, and the blocking wheel 29 located inside the mounting shell 27, and three grooves 30 opened on the outside of the mounting shell 27.

[0027] Specifically, in this embodiment, a nozzle assembly 20 is included, which includes a nozzle 25. A material delivery pipe 26 is inserted into the bottom end of the nozzle 25, and a mounting shell 27 is threadedly connected to the top end of the nozzle 25. A threaded rod 28 is provided inside the mounting shell 27, and a blocking wheel 29 is installed on the outside of the threaded rod 28 via a flat key. When concrete is sprayed, the threaded rod 28 can be rotated, causing the blocking wheel 29 to rotate and the position of the groove 30 on the blocking wheel 29 to change. This causes the surface of the blocking wheel 29 with grooves 30 of different widths to adhere to the inner wall of the mounting shell 27, so as to adjust the amount of concrete flowing out between the blocking wheel 29 and the mounting shell 27, thereby adjusting the spray volume of the nozzle assembly 20. The blocking wheel 29 is located inside the mounting shell 27, and three grooves 30 are provided on the outside of the mounting shell 27. The grooves 30 are annular grooves, each with a different width.

[0028] The concrete pouring nozzle provided by this utility model allows for adjustment of the spray volume of the nozzle 25 by rotating the threaded rod 28, causing the blocking wheel 29 to rotate and changing the position of the groove 30 on the blocking wheel 29. This allows the surfaces of the blocking wheel 29 with grooves 30 of different widths to adhere to the inner wall of the mounting shell 27, facilitating the adjustment of the amount of concrete flowing between the blocking wheel 29 and the mounting shell 27. This enables adjustment of the spray volume of the nozzle assembly 20, allowing for spray volume adjustment without replacing the nozzle 25 during concrete pouring. This improves the continuity of concrete pouring and avoids the problem of discontinuous pouring affecting the pouring effect.

[0029] Shotcrete machines used in concrete pouring construction, such as Figure 1-3 As shown, the assembly includes a frame 1. Universal wheels 2 are bolted to the outer walls of both sides of the bottom of the frame 1. A mounting box 11 is bolted to the outer wall of one side of the top of the frame 1, and a partition frame 15 is bolted inside the mounting box 11. Two mounting brackets 17 are bolted to the outer wall of one side of the partition frame 15, and a winding wheel 18 is mounted inside the mounting bracket 17 via bearings. The feed pipe 26 of the nozzle assembly 20 is wound inside the winding wheel 18. A drive motor 19 is bolted to the outer wall of one side of the mounting bracket 17. The preferred model of the second drive motor 19 is 57BYGH650-23. When the second drive motor 19 is started, the winding wheel 18 winds up the nozzle assembly 20, realizing automatic winding of the nozzle assembly 20. The output end of the second drive motor 19 is fixedly connected to the winding wheel 18 via a flat key. A door 4 is provided on one side of the outer wall of the mounting box 11. A tray frame 16 is bolted to one side of the outer wall of the partition frame 15. The tray frame 16 can store auxiliary tools for concrete pouring. The nozzle 25 is clipped onto the tray frame 16.

[0030] In one embodiment provided by this utility model, such as Figure 2-3As shown, a plunger pump 14 and a filter cartridge 13 are respectively installed on the outer walls of the top two sides of the frame 1. The plunger pump 14 is preferably a HY series axial plunger pump, and the plunger pump 14 is connected to the filter cartridge 13 through a pipe. The plunger pump 14 is also connected to the nozzle assembly 20 through a pipe. A power module 12 is installed on one outer wall of the top of the frame 1. The power module 12 can be a generator or a lithium battery pack, which can provide power to the electrical equipment on the device. A perforated plate 24 with many holes is bolted to the inside of the filter cartridge 13. A drive motor 21 is bolted to the top of the filter cartridge 13. The drive motor 21 is preferably a 57BYGH6. 50-23, and the output end of the drive motor 3 21 is equipped with the auger shaft 2 22 through the coupling. A return pipe 23 is inserted into the outer wall of one side of the filter cylinder 13. When the concrete inside the mixing tank 3 flows into the filter cylinder 13, the perforated plate 24 can filter out the large particles in the concrete that have not been mixed and dispersed, so as to avoid the large particles blocking the plunger pump 14. Subsequently, the drive motor 3 21 will start, so that the auger shaft 2 22 will rotate, so that the concrete particles intercepted by the perforated plate 24 inside the filter cylinder 13 will move upward. Then the concrete particles will flow back into the mixing tank 3 through the return pipe 23, so that the mixing structure inside the mixing tank 3 can re-mix and disperse the undispersed concrete particles.

[0031] In another embodiment provided by this utility model, such as Figure 1-2 As shown, a mixing tank 3 is bolted to one side of the outer wall of the top of the frame 1, and a tank cover 10 is hinged to one side of the outer wall of the mixing tank 3. The tank cover 10 is snapped onto the top of the mixing tank 3. One end of the return pipe 23 extends into the interior of the mixing tank 3. The filter cartridge 13 is connected to the mixing tank 3 through a pipe. A placement groove 5 is provided at the bottom of the mixing tank 3, and a drive motor 6 is bolted to the center of the top of the inner wall of the placement groove 5. The preferred model of the drive motor 6 is 42BLF02. The output end of the drive motor 6 is connected to an auger shaft 7 located inside the mixing tank 3 through a coupling. A connecting frame 8 is bolted to the top of the auger shaft 7. Multiple stirring rods 9 are welded to the outer walls of both sides of the connecting frame 8. When the drive motor 6 is started, the auger shaft 7 can be rotated, causing the concrete material at the bottom of the mixing tank 2 to surge upward. Then, the rotating connecting frame 8 will rotate the stirring rods 9, causing the stirring rods 9 to stir the concrete, so that the concrete inside the mixing tank 3 is mixed evenly.

[0032] Example 1

[0033] The nozzle for concrete pouring construction includes a nozzle assembly 20, which includes a nozzle 25. A material delivery pipe 26 is inserted into the bottom of the nozzle 25, and a mounting shell 27 is threadedly connected to the top of the nozzle 25. The mounting shell 27 has a threaded rod 28 inside, and a blocking wheel 29 is installed on the outside of the threaded rod 28 via a flat key. When concrete is sprayed out, the threaded rod 28 can be rotated, causing the blocking wheel 29 to rotate and change the position of the groove 30 on the blocking wheel 29. This causes the surface of the blocking wheel 29 with grooves 30 of different widths to adhere to the inner wall of the mounting shell 27, so as to adjust the amount of concrete flowing out between the blocking wheel 29 and the mounting shell 27, thereby adjusting the spray volume of the nozzle assembly 20. The blocking wheel 29 is located inside the mounting shell 27, and the outside of the mounting shell 27 has three grooves 30, which are annular grooves, each with a different width.

[0034] Example 2

[0035] This embodiment further defines the concrete pouring spraying machine based on embodiment 1. The machine includes a frame 1, with casters 2 bolted to the outer walls of both sides of the bottom of the frame 1. A mounting box 11 is bolted to one outer wall of the top of the frame 1, and a partition frame 15 is bolted inside the mounting box 11. Two mounting brackets 17 are bolted to one outer wall of one side of the partition frame 15, and a winding wheel 18 is mounted inside the mounting bracket 17 via bearings. The material delivery pipe 26 of the nozzle assembly 20 is wound inside the winding wheel 18. A drive motor 29 is bolted to one outer wall of one side of the mounting bracket 17. The drive motor 19 is preferably model 57BYGH650-23. Operating the drive motor 19 starts the winding reel 18, causing it to automatically wind up the nozzle assembly 20. The output end of the drive motor 19 is fixedly connected to the winding reel 18 via a key. A door 4 is provided on one side of the outer wall of the mounting box 11. A tray frame 16 is bolted to one side of the outer wall of the partition frame 15. The tray frame 16 can store auxiliary tools for concrete pouring, and the nozzle 25 is clipped onto the tray frame 16. A plunger pump 14 and a filter cartridge 13 are respectively provided on the top two outer walls of the frame 1. The plunger pump 14 is preferably model H. The Y-series axial piston pump 14 is connected to the filter cartridge 13 via a pipe and to the nozzle assembly 20 via a pipe. A power module 12 is located on the outer wall of one side of the top of the frame 1. The power module 12 can be a generator or a lithium battery pack, which can supply power to the electrical equipment on the device. A perforated plate 24 with numerous holes is bolted inside the filter cartridge 13. A drive motor 21 is bolted to the top of the filter cartridge 13. The preferred model of the drive motor 21 is 57BYGH650-23, and the output end of the drive motor 21 is connected to... The coupling is equipped with an auger shaft 22. A return pipe 23 is inserted into the outer wall of one side of the filter cylinder 13. When the concrete inside the mixing tank 3 flows into the filter cylinder 13, the perforated plate 24 can filter out large particles that have not been mixed and dispersed in the concrete, preventing large particles from clogging the plunger pump 14. Subsequently, the drive motor 21 will start, causing the auger shaft 22 to rotate, causing the concrete particles intercepted by the perforated plate 24 inside the filter cylinder 13 to move upward. Then, the concrete particles will flow back into the mixing tank 3 through the return pipe 23, so that the mixing structure inside the mixing tank 3 can re-mix and disperse the undispersed concrete particles.A mixing tank 3 is bolted to one side of the top outer wall of the frame 1, and a tank cover 10 is hinged to one side of the outer wall of the mixing tank 3. The tank cover 10 is snapped onto the top of the mixing tank 3. One end of the return pipe 23 extends into the interior of the mixing tank 3. A filter cartridge 13 is connected to the mixing tank 3 via a pipe. A placement groove 5 is provided at the bottom of the mixing tank 3, and a drive motor 6 is bolted to the center of the top of the inner wall of the placement groove 5. The drive motor 6 is preferably a 42BLF02. The output end of the drive motor 6 is connected to an auger shaft 7 located inside the mixing tank 3 via a coupling. A connecting frame 8 is bolted to the top of the auger shaft 7. Multiple stirring rods 9 are welded to the outer walls of both sides of the connecting frame 8. When the drive motor 6 is started, the auger shaft 7 rotates, causing the concrete material at the bottom of the mixing tank 2 to rise. The rotating connecting frame 8 then rotates the stirring rods 9, causing the stirring rods 9 to stir the concrete, making the concrete inside the mixing tank 3 evenly mixed.

[0036] Working Principle: Using this device, first move it to a suitable position. Then, the worker can open the tank lid 10 and inject concrete and water into the mixing tank 3. After closing the lid 10, start the drive motor 6, which will rotate the auger shaft 7, causing the concrete at the bottom of the mixing tank 2 to rise. The rotating connecting frame 8 will then rotate the mixing rod 9, causing it to mix the concrete. During mixing, the box door 4 can be opened, and two nozzle assemblies 20 can be pulled out, allowing the nozzles 25 to be extended and positioned at the pouring location. After mixing, the valve on the pipe connected to the filter cylinder 13 can be opened, allowing the concrete inside the mixing tank 3 to flow into the filter cylinder 13. The concrete then passes through the perforated plate 24 and falls to the bottom of the filter cylinder 13. The plunger pump 14, which is then activated, will extract the concrete from the filter cylinder 13 and transport it to the delivery pipe. In step 26, concrete will then be sprayed from nozzle 25. When the concrete is sprayed, the threaded rod 28 can be rotated to rotate the blocking wheel 29, causing the position of the groove 30 on the blocking wheel 29 to change. This allows the surface of the blocking wheel 29 with grooves 30 of different widths to adhere to the inner wall of the mounting shell 27, so as to adjust the amount of concrete flowing out between the blocking wheel 29 and the mounting shell 27, thereby adjusting the spray volume of the nozzle assembly 20. At the same time, when the concrete is sprayed, the drive motor 3 21 will start, causing the auger shaft 22 to rotate, causing the concrete particles intercepted by the perforated plate 24 inside the filter cylinder 13 to move upward. Then, the concrete particles will flow back into the mixing tank 3 through the return pipe 23, so that the mixing structure inside the mixing tank 3 can re-mix and disperse the undispersed concrete particles. After the subsequent pouring is completed, the drive motor 2 19 can be started to cause the winding wheel 18 to wind up the nozzle assembly 20, thereby achieving automatic winding of the nozzle assembly 20.

[0037] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A nozzle for concrete placement construction comprising a tip assembly (20), characterised in that, The spray head assembly (20) comprises a spray head (25), the bottom end of the spray head (25) is inserted with a feeding pipe (26), the top end of the spray head (25) is threadedly connected with a mounting shell (27), and the inside of the mounting shell (27) is provided with a threaded rod (28), the outside of the threaded rod (28) is mounted with a blocking wheel (29) through a flat key, and the blocking wheel (29) is located inside the mounting shell (27), and three grooves (30) are formed in the outside of the mounting shell (27).

2. A concrete placing machine using the nozzle for concrete placing construction according to claim 1, characterized in that, The frame (1) is provided with universal wheels (2) on the bottom of both sides of the frame (1), and the top of one side of the frame (1) is provided with an installation box (11) through a bolt, and the inside of the installation box (11) is provided with a partition frame (15) through a bolt, and the outside of one side of the partition frame (15) is provided with two installation frames (17) through a bolt, and the inside of the installation frame (17) is provided with a winding wheel (18) through a bearing, and the feeding pipe (26) of the spray head assembly (20) is wound in the inside of the winding wheel (18), and the outside of one side of the installation frame (17) is provided with a driving motor two (19) through a bolt, and the output end of the driving motor two (19) is fixedly connected with the winding wheel (18) through a flat key, and the outside of one side of the installation box (11) is provided with a box door (4).

3. A concrete placement machine according to claim 2, characterised in that, The outside of one side of the partition frame (15) is provided with a tray frame (16) through a bolt, and the spray head (25) is clamped on the tray frame (16).

4. A concrete placement machine according to claim 2, wherein The frame (1) is provided with a plunger pump (14) and a filter cartridge (13) on the top of both sides of the frame (1), and the plunger pump (14) is communicated with the filter cartridge (13) through a pipeline, and the plunger pump (14) is connected with the spray head assembly (20) through a pipeline, and the top of one side of the frame (1) is provided with a power module (12).

5. A concrete placement machine according to claim 4, wherein The inside of the filter cartridge (13) is provided with a perforated plate (24) through a bolt, the top end of the filter cartridge (13) is provided with a driving motor three (21) through a bolt, and the output end of the driving motor three (21) is provided with a screw shaft two (22) through a shaft coupling, and one side of the filter cartridge (13) is inserted with a return pipe (23).

6. A concrete placing machine according to claim 5, characterised in that The top of one side of the frame (1) is provided with a mixing tank (3) through a bolt, and one side of the mixing tank (3) is provided with a tank cover (10) through a hinge, the tank cover (10) is clamped on the top end of the mixing tank (3), one end of the return pipe (23) extends into the inside of the mixing tank (3), and the filter cartridge (13) is connected with the mixing tank (3) through a pipeline.

7. A concrete placement machine according to claim 6, characterised in that, The bottom end of the mixing tank (3) is provided with a mounting groove (5), and the inside wall of the mounting groove (5) is provided with a driving motor one (6) at the top center through a bolt, the output end of the driving motor one (6) is provided with a screw shaft one (7) located in the inside of the mixing tank (3) through a shaft coupling, and the top end of the screw shaft one (7) is provided with a connecting frame (8) through a bolt, and a plurality of stirring rods (9) are welded on the outside of both sides of the connecting frame (8).

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