Anti-clogging concrete spraying device

Abstract

The utility model discloses a kind of anti-clogging concrete shotcreting device, it is related to concrete injection technical field, including shotcreting pipe and mixing tank, the shotcreting pipe one end is fixed in swing rod end portion, the swing rod bottom end is fixed with rotating column, the rotating column rotation is arranged on mounting plate upper end, the inside of the mixing tank is equipped with cleaning mechanism, the utility model is by being arranged first cleaning frame and second cleaning frame in the inside of mixing tank, and then the inside wall of mixing tank and the rest components in mixing tank can be cleaned, and by being arranged first protective frame and second protective frame, so that first cleaning nozzle and second cleaning nozzle can be protected, by being arranged swing rod and rotating disc, and then the horizontal working angle of shotcreting pipe can be adjusted, by being arranged hinged seat and first electric cylinder, and then the vertical working angle and vertical working height of shotcreting pipe can be adjusted.

Description

Technical Field

[0001] This utility model relates to the field of concrete spraying technology, specifically a concrete spraying device for preventing clogging. Background Technology

[0002] Shotcrete machines are a new type of high-efficiency shotcrete machinery, mainly suitable for concrete shotcreting operations on the cross-sections of tunnels, roadways, and other engineering projects. This equipment features a reasonable structure, reliable performance, and advantages such as easy operation, convenient maintenance, and long service life. During operation, it significantly reduces dust concentration and noise levels while effectively controlling rebound rate, thereby greatly improving the working environment and ensuring the health and safety of construction workers. The widespread application of shotcrete machines not only improves the overall efficiency of concrete spraying construction but also reflects the continuous progress of modern engineering machinery in green construction and human-centered design.

[0003] Authorization announcement number CN223062030U discloses an anti-clogging concrete spraying device. This device ensures uniform concrete distribution during spraying through a mixing mechanism, effectively reducing clogging and improving construction continuity and efficiency. Furthermore, the device has a cleaning function, capable of scraping away concrete residue adhering to the inner wall of the storage tank to prevent it from drying and hardening, which could affect subsequent use. However, the device still has certain limitations, particularly in cleaning residual concrete from the mixing shaft and scraper. If residue is not removed promptly, it can gradually accumulate and harden, eventually potentially clogging the spraying system and affecting normal equipment operation and construction progress.

[0004] Based on this, a clog-resistant concrete spraying device is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide a concrete spraying device that prevents clogging, in order to solve the problems in the prior art.

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

[0007] A clog-resistant concrete spraying device includes a spraying pipe and a mixing tank. One end of the spraying pipe is fixedly mounted on the end of a swing rod. A rotating column is fixedly mounted on the bottom end of the swing rod. The rotating column is rotatably mounted on the upper end of a mounting plate. A hinge seat is fixedly mounted on the bottom end of the mounting plate. The hinge seat is hingedly connected to one end of a sliding rod. The sliding rod is slidably mounted inside a fixed pipe. One end of the sliding rod is fixedly connected to the output end of a first electric cylinder. The first electric cylinder is fixedly mounted on the upper end of a moving vehicle. The other end of the spraying pipe is connected to the output end of a delivery pump. The input end of the delivery pump is connected to the inside of the mixing tank. The drive end of the delivery pump is fixedly connected to the output end of a third electric motor. The delivery pump, the third electric motor, and the mixing tank are all fixedly mounted on the upper end of the moving vehicle. A feeding pipe is connected to the upper end of the mixing tank. A cleaning mechanism for cleaning the inner wall of the mixing tank is provided inside the mixing tank.

[0008] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0009] In one alternative: one end of the swing rod is provided with a limiting groove, and a sliding pin seat is slidably provided in the limiting groove. The sliding pin seat is fixedly connected to the rotating disk by screws. The rotating disk is fixedly installed at the output end of the first motor. The first motor is fixedly installed on the upper end of the mounting plate. The rotating disk is provided with several adjusting screw holes.

[0010] In one alternative: a fixed tube is fixedly provided on one side of the hinge seat, a driven gear is fixedly provided on the fixed tube, a driving gear is meshed on the driven gear, the driving gear is fixedly provided at the output end of the second motor, and the second motor is fixedly provided at the bottom end of the mounting plate.

[0011] In one optional embodiment: the cleaning mechanism includes a first cleaning frame, two of which are symmetrically arranged. Each first cleaning frame is in close contact with the inner wall of the mixing tank. Each first cleaning frame is hollow inside. A connecting rod is fixedly mounted at one end of each first cleaning frame, and the other end of each connecting rod is fixedly connected to one end of a fixed shaft. One end of the fixed shaft is rotatably connected to the bottom of the mixing tank. A plurality of fixed rods are arrayed on the upper end of the fixed shaft, and the other end of each fixed rod is fixedly connected to the bottom of a water inlet pipe. A rotating joint is rotatably mounted at the other end of the water inlet pipe. The input end of the rotating joint communicates with the output end of an external liquid supply component. A sleeve shaft is sleeved on the outside of the fixed shaft, and one end of the sleeve shaft is fixedly mounted... The device has a fixed joint, with a drive shaft fixedly mounted on the upper end of the fixed joint. A rotating ring is rotatably mounted on the outer side of the fixed joint, and symmetrical connection ports are provided on the rotating ring. One end of each of the two first cleaning racks is connected to one of the two connection ports. A first bevel gear and a second bevel gear are fixedly mounted on one end of the water inlet pipe and the drive shaft, respectively. Both the first and second bevel gears mesh with a third bevel gear. The third bevel gear is fixedly mounted on the output end of a fourth motor. The fourth motor is fixedly mounted on the upper end of the mixing tank. Several first cleaning spray holes are arrayed on both sides of the first cleaning rack. Several first mixing rods are arrayed on the outer side of the sleeve shaft. Several second mixing rods are arrayed on one side of the first cleaning rack.

[0012] In one alternative: a second cleaning frame is symmetrically provided on the outer side of the sleeve shaft. The interior of each second cleaning frame is hollow. A plurality of second cleaning nozzles are arrayed on the outer side of each second cleaning frame. A connecting pipe is connected to the upper end of each second cleaning frame. The other end of each connecting pipe is connected to the interior of the fixed joint.

[0013] In one alternative embodiment: a first protective frame is sleeved on the outer side of the first cleaning frame. The outer side of the first protective frame and the first cleaning nozzle each have a first through hole. A first connecting frame is fixedly mounted on the upper end of each of the first protective frames. A first limiting frame is fixedly mounted on the upper end of each of the first connecting frames. The first limiting frame slides inside a first limiting ring. An extension rod is symmetrically mounted on the upper end of the first limiting ring. One end of each extension rod extends to the outside of the mixing tank. Each extension rod is fixedly connected to the output end of a second electric cylinder. The second electric cylinder is fixedly mounted on the outer side of the mixing tank. A second protective frame is sleeved on the outer side of the second cleaning frame. A second through hole is provided on the outer side of the second protective frame and the second cleaning nozzle each have a second through hole. A second connecting frame is fixedly mounted on the upper end of each of the second protective frames. A second limiting frame is fixedly mounted on the upper end of each of the second connecting frames. The second limiting frame slides inside a second limiting ring. Fixing rods are symmetrically mounted on the second limiting ring. Each of the two fixing rods is fixedly connected to one end of one of the two first protective frames.

[0014] In one alternative: a scraper is fixedly provided at the upper end of the inside of the mixing tank, and the bottom end of the scraper is in close contact with the upper end of the first cleaning rack.

[0015] In one alternative: the bottom of the mixing tank is provided with a slag discharge pipe, and a bottom plug is installed inside the slag discharge pipe.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention, by installing a first cleaning frame and a second cleaning frame inside the mixing tank, can clean the inner wall of the mixing tank and other internal components, preventing residual concrete from clogging the input end of the delivery pump. Furthermore, by installing the first and second protective frames, the first and second cleaning nozzles can be protected from concrete blockage. Additionally, by installing a swing rod and a rotating disc, the horizontal working angle of the spraying pipe can be adjusted. By installing a hinged seat and a first electric cylinder, the vertical working angle and vertical working height of the spraying pipe can be adjusted, thereby increasing the practicality of the concrete spraying device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the internal structure of the mixing tank of this utility model.

[0020] Figure 3 This is a schematic diagram of the sliding pin seat structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the first cleaning rack structure of this utility model.

[0022] Figure 5 This is a schematic diagram of the first cleaning rack structure of this utility model.

[0023] Figure 6 This is a schematic diagram of the connection between the sleeve shaft and the water inlet pipe of this utility model.

[0024] Figure 7 This is a schematic diagram of the structure of the first and second cleaning racks of this utility model.

[0025] Figure reference numerals: 11 Shotcrete pipe, 12 Swing rod, 13 Rotating column, 14 Mounting plate, 15 Rotating disc, 16 Sliding pin seat, 17 First motor, 18 Sliding rod, 19 First electric cylinder, 20 Driven gear, 21 Second motor, 22 Conveying pump, 23 Third motor, 24 Moving vehicle, 25 Mixing tank, 26 Feeding pipe, 27 Sleeve shaft, 28 Fixed shaft, 29 Water inlet pipe, 30 Rotary joint, 31 Fixed joint, 32 Fourth motor, 33 Rotating ring, 34 First cleaning frame, 35 Connecting rod, 36 First protective frame, 37 First limiting ring, 38 Second electric cylinder, 39 Second cleaning frame, 40 Second protective frame, 41 Second limiting ring, 42 Scraper, 43 Bottom plug. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] Example 1

[0028] In one embodiment, such as Figures 1-7 As shown, an anti-clogging concrete spraying device includes a spraying pipe 11 and a mixing tank 25. One end of the spraying pipe 11 is fixedly mounted on the end of a swing rod 12. A rotating column 13 is fixedly mounted on the bottom end of the swing rod 12. The rotating column 13 is rotatably mounted on the upper end of a mounting plate 14. A hinge seat is fixedly mounted on the bottom end of the mounting plate 14. The hinge seat is hingedly connected to one end of a sliding rod 18. The sliding rod 18 is slidably mounted inside a fixed pipe. One end of the sliding rod 18 is fixedly connected to the output end of a first electric cylinder 19. The first electric cylinder 19 is fixedly mounted on a moving vehicle. At the upper end of 24, the other end of the shotcrete pipe 11 is connected to the output end of the conveying pump 22, the input end of the conveying pump 22 is connected to the inside of the mixing tank 25, the drive end of the conveying pump 22 is fixedly connected to the output end of the third motor 23, the conveying pump 22, the third motor 23 and the mixing tank 25 are all fixedly mounted on the upper end of the mobile vehicle 24, the upper end of the mixing tank 25 is connected to the feeding pipe 26, and the mixing tank 25 is provided with a cleaning mechanism for cleaning the inner wall of the mixing tank 25. The cleaning mechanism facilitates the cleaning of residual concrete on the inner wall of the feeding pipe 26.

[0029] One end of the swing rod 12 is provided with a limiting groove, and a sliding pin seat 16 is slidably provided in the limiting groove. The sliding pin seat 16 is fixedly connected to the rotating disk 15 by screws. The rotating disk 15 is fixedly provided at the output end of the first motor 17, which is fixedly provided at the upper end of the mounting plate 14. The rotating disk 15 is provided with several adjusting screw holes. When swinging spraying is required, the first motor 17 is started. The output end of the first motor 17 drives the rotating disk 15 to rotate, and the rotating disk 15 drives the sliding pin seat 16 to rotate. The sliding pin seat 16 slides in the limiting groove, so that the swing rod 12 drives one end of the spraying pipe 11 to swing back and forth.

[0030] A fixed tube is fixedly provided on one side of the hinge seat, and a driven gear 20 is fixedly provided on the fixed tube. A driving gear is meshed on the driven gear 20. The driving gear is fixedly provided at the output end of the second motor 21. The second motor 21 is fixedly provided at the bottom end of the mounting plate 14. In use, when it is necessary to adjust the vertical working angle of the working end of the shotcrete pipe 11, the second motor 21 is started. The output end of the second motor 21 drives the driving gear to rotate. The driving gear meshes with the driven gear 20, causing the mounting plate 14 to swing back and forth, thereby adjusting the vertical working angle of the shotcrete pipe 11. When it is necessary to adjust the vertical working height of the shotcrete pipe 11, the output end of the first electric cylinder 19 drives the mounting plate 14 to move through the sliding rod 18, thereby satisfying different working modes of the shotcrete pipe 11.

[0031] The cleaning mechanism includes a first cleaning frame 34, with two first cleaning frames 34 arranged symmetrically. Each first cleaning frame 34 is tightly fitted against the inner wall of the mixing tank 25 and is hollow inside. A connecting rod 35 is fixedly mounted at one end of each first cleaning frame 34, and the other end of each connecting rod 35 is fixedly connected to one end of a fixed shaft 28. One end of the fixed shaft 28 is rotatably connected to the bottom end of the mixing tank 25. Several fixed rods are arrayed on the upper end of the fixed shaft 28, and the other end of each fixed rod is fixedly connected to the bottom end of a water inlet pipe 29. A rotating joint 30 is rotatably mounted at the other end of the water inlet pipe 29. The input end of the rotating joint 30 is connected to the output end of an external liquid supply component. A sleeve shaft 27 is sleeved on the outside of the fixed shaft 28, and one end of the sleeve shaft 27 is fixed... A fixed joint 31 is provided, and a drive shaft is fixedly provided at the upper end of the fixed joint 31. A rotating ring 33 is rotatably provided on the outer side of the fixed joint 31. A connection port is symmetrically provided on the rotating ring 33. One end of the two first cleaning racks 34 is respectively connected to the two connection ports. A first bevel gear and a second bevel gear are respectively fixedly provided at one end of the water inlet pipe 29 and the drive shaft. The first bevel gear and the second bevel gear are both meshed with a third bevel gear. The third bevel gear is fixedly provided at the output end of the fourth motor 32. The fourth motor 32 is fixedly provided at the upper end of the mixing tank 25. A number of first cleaning spray holes are arranged in an array on both sides of the first cleaning rack 34. A number of first mixing rods are arranged in an array on the outer side of the sleeve shaft 27. A number of second mixing rods are arranged in an array on one side of the first cleaning rack 34.

[0032] The outer side of the sleeve shaft 27 is symmetrically provided with second cleaning frames 39. The interior of each second cleaning frame 39 is hollow. Several second cleaning nozzles are arrayed on the outer side of each second cleaning frame 39. A connecting pipe is connected to the upper end of each second cleaning frame 39, and the other end of each connecting pipe is connected to the interior of the fixed joint 31. In use, when spraying concrete, the output end of the fourth motor 32 drives the third bevel gear to rotate. The third bevel gear meshes with the first and second bevel gears, causing the water inlet pipe 29 and the drive shaft to rotate. The water inlet pipe 29 drives the two first cleaning frames 34 to rotate through the fixed shaft 28. The drive shaft drives the sleeve shaft 27 to rotate through the fixed joint 31, and the sleeve shaft 27 rotates in the opposite direction to the fixed shaft 28. The fixed shaft 28 drives the first cleaning frames 34 to rotate. The connecting shaft 27 and the first cleaning frame 34 mix the concrete inside the mixing tank 25 through the first mixing rod and the second mixing rod, respectively. When it is necessary to clean the inside of the mixing tank 25, the output end of the external liquid supply component delivers cleaning fluid to the rotating joint 30. The cleaning fluid is delivered to the fixed joint 31 through the water inlet pipe 29. The cleaning fluid is delivered to the second cleaning frame 39 and the first cleaning frame 34 through the fixed joint 31 and the rotating ring 33. At the same time, the first cleaning frame 34 is in close contact with the inner wall of the mixing tank 25, thereby scraping off the residual concrete on the inner wall of the mixing tank 25. Meanwhile, the first cleaning frame 34 sprays cleaning fluid through the first cleaning nozzle to clean the inner wall of the mixing tank 25 and the outside of the connecting shaft 27. The second cleaning nozzle on the outside of the second cleaning frame 39 sprays cleaning fluid to clean the outside of the rotating ring 33.

[0033] A first protective frame 36 is sleeved on the outside of the first cleaning frame 34. The first protective frame 36 has a first through hole at both its outer side and the first cleaning nozzle. A first connecting frame is fixedly mounted on the upper end of each of the first protective frames 36. A first limiting frame is fixedly mounted on the upper end of each of the first connecting frames. The first limiting frame slides inside a first limiting ring 37. An extension rod is symmetrically mounted on the upper end of the first limiting ring 37, with one end extending to the outside of the mixing tank 25. Each extension rod is fixedly connected to the output end of a second electric cylinder 38, which is fixedly mounted on the outside of the mixing tank 25. A second protective frame 40 is sleeved on the outside of the second cleaning frame 39. The second protective frame 40 has a second through hole at both its outer side and the second cleaning nozzle. A second connecting frame is fixedly mounted on the upper end of each of the second protective frames 40. A second limiting frame is fixedly mounted on the upper end of each of the second connecting frames. The second limiting frame slides inside a second limiting ring 41. A fixing rod is symmetrically mounted on the second limiting ring 41. The two fixing rods are respectively... The first protective frame 36 is fixedly connected to one end of each of the two first protective frames 36. In use, when the first cleaning frame 34 and the second cleaning frame 39 are mixing the concrete inside the mixing tank 25, the output end of the second electric cylinder 38 drives the first limiting ring 37 to move through the extension rod. The first limiting ring 37 drives the first protective frame 36 to slide through the first connecting frame, so that the first protective frame 36 closes the first cleaning nozzle. At the same time, the first protective frame 36 drives the second limiting ring 41 to move through the fixed rod. The second limiting ring 41 drives the second protective frame 40 to slide through the second connecting frame, so that the second protective frame 40 closes the second cleaning nozzle, thereby preventing the concrete from clogging the first and second cleaning nozzles. Conversely, when cleaning the inside of the mixing tank 25, the output end of the second electric cylinder 38 extends, so that the first and second through holes are aligned with the first and second cleaning nozzles, respectively, so that cleaning work can be carried out. At the same time, the first and second cleaning nozzles can clean the outside of the second protective frame 40 and the first protective frame 36, respectively.

[0034] The upper part of the mixing tank 25 is fixedly equipped with a scraper 42. The bottom end of the scraper 42 is in close contact with the upper end of the first cleaning frame 34, so that the concrete on the upper end of the first cleaning frame 34 can be cleaned during use.

[0035] Example 2

[0036] The difference from Example 1 is that the bottom of the mixing tank 25 is provided with a slag discharge pipe, and a bottom plug 43 is installed in the slag discharge pipe, which facilitates the discharge of concrete residue after cleaning.

[0037] The above embodiment discloses an anti-clogging concrete spraying device. When swing spraying is required, the first motor 17 is started. The output end of the first motor 17 drives the rotating disk 15 to rotate. The rotating disk 15 drives the sliding pin seat 16 to rotate. The sliding pin seat 16 slides in the limiting groove, so that the swing rod 12 drives one end of the spraying pipe 11 to swing back and forth. When the vertical working angle of the working end of the spraying pipe 11 needs to be adjusted, the second motor 21 is started. The output end of the second motor 21 drives the drive gear to rotate. The drive gear meshes with the driven gear 20, so that the mounting plate 14 swings back and forth, thereby adjusting the vertical working angle of the spraying pipe 11. When the vertical working height of the spraying pipe 11 needs to be adjusted, the output end of the first electric cylinder 19 drives the mounting plate 14 to move through the sliding rod 18, thereby satisfying different working modes of the spraying pipe 11.

[0038] When the first cleaning frame 34 and the second cleaning frame 39 mix the concrete inside the mixing tank 25, the output end of the second electric cylinder 38 drives the first limiting ring 37 to move via an extension rod. The first limiting ring 37 drives the first protective frame 36 to slide via the first connecting frame, causing the first protective frame 36 to close the first cleaning nozzle. At the same time, the first protective frame 36 drives the second limiting ring 41 to move via a fixing rod. The second limiting ring 41 drives the second protective frame 40 to slide via the second connecting frame, causing the second protective frame 40 to close the second cleaning nozzle, thereby preventing concrete from clogging the first and second cleaning nozzles. When it is necessary to clean the inside of the mixing tank 25, the output end of the second electric cylinder 38 extends, causing the first limiting ring 37 to move via an extension rod. The first limiting ring 37 drives the first protective frame 36 to slide via the first connecting frame, causing the first protective frame 36 to close the first cleaning nozzle. The first and second perforations are aligned with the first and second cleaning nozzles, respectively. The output end of the external liquid supply component delivers cleaning fluid into the rotary joint 30. The cleaning fluid is delivered to the fixed joint 31 through the water inlet pipe 29. The cleaning fluid is delivered to the second cleaning frame 39 and the first cleaning frame 34 through the fixed joint 31 and the rotating ring 33. At the same time, the first cleaning frame 34 is in close contact with the inner wall of the mixing tank 25, thereby scraping off the residual concrete on the inner wall of the mixing tank 25. Meanwhile, the first cleaning frame 34 sprays cleaning fluid through the first cleaning nozzle to clean the inner wall of the mixing tank 25, the sleeve shaft 27, and the outer side of the second protective frame 40. The second cleaning nozzle on the outer side of the second cleaning frame 39 sprays cleaning fluid to clean the outer side of the first protective frame 36.

[0039] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An anti-clogging concrete spraying device, comprising a spraying pipe (11) and a mixing tank (25), one end of the spraying pipe (11) is fixedly arranged at the end of a swing rod (12), the bottom end of the swing rod (12) is fixedly arranged with a rotating column (13), and the rotating column (13) is rotatably arranged at the upper end of a mounting plate (14), characterized in that, The mounting plate (14) is fixedly provided with a hinge seat at the bottom end. The hinge seat is hinged to one end of the sliding rod (18). The sliding rod (18) is slidably disposed inside the fixed tube. One end of the sliding rod (18) is fixedly connected to the output end of the first electric cylinder (19). The first electric cylinder (19) is fixedly disposed on the upper end of the moving vehicle (24). The other end of the spray pipe (11) is connected to the output end of the conveying pump (22). The input end of the conveying pump (22) is connected to the inside of the mixing tank (25). The driving end of the conveying pump (22) is fixedly connected to the output end of the third motor (23). The conveying pump (22), the third motor (23) and the mixing tank (25) are all fixedly disposed on the upper end of the moving vehicle (24). The upper end of the mixing tank (25) is connected to a feeding pipe (26). The mixing tank (25) is provided with a cleaning mechanism for cleaning the inner wall of the mixing tank (25).

2. The anti-clogging concrete spraying device according to claim 1, characterized in that, One end of the swing rod (12) is provided with a limiting groove, and a sliding pin seat (16) is slidably provided in the limiting groove. The sliding pin seat (16) is fixedly connected to the rotating disk (15) by screws. The rotating disk (15) is fixedly installed at the output end of the first motor (17). The first motor (17) is fixedly installed on the upper end of the mounting plate (14). The rotating disk (15) is provided with several adjusting screw holes.

3. The anti-clogging concrete spraying device according to claim 2, characterized in that, A fixed tube is fixedly provided on one side of the hinge seat, and a driven gear (20) is fixedly provided on the fixed tube. A driving gear is meshed on the driven gear (20), and the driving gear is fixedly provided at the output end of the second motor (21). The second motor (21) is fixedly provided at the bottom end of the mounting plate (14).

4. The anti-clogging concrete spraying device according to claim 1, characterized in that, The cleaning mechanism includes a first cleaning frame (34), two first cleaning frames (34) are symmetrically arranged, the first cleaning frames (34) are tightly attached to the inner wall of the mixing tank (25), the interior of the first cleaning frames (34) is hollow, a connecting rod (35) is fixedly provided at one end of each first cleaning frame (34), the other end of each connecting rod (35) is fixedly connected to one end of a fixed shaft (28), one end of the fixed shaft (28) is rotatably connected to the bottom end of the mixing tank (25), a number of fixed rods are arrayed on the upper end of the fixed shaft (28), the other end of each fixed rod is fixedly connected to the bottom end of the water inlet pipe (29), the other end of the water inlet pipe (29) is rotatably provided with a rotating joint (30), the input end of the rotating joint (30) is connected to the output end of the external liquid supply component, a sleeve shaft (27) is sleeved on the outside of the fixed shaft (28), the ... 7) A fixed connector (31) is fixed at one end. A drive shaft is fixed at the upper end of the fixed connector (31). A rotating ring (33) is rotatably provided on the outside of the fixed connector (31). A connection port is symmetrically provided on the rotating ring (33). One end of the two first cleaning racks (34) is connected to the two connection ports respectively. A first bevel gear and a second bevel gear are fixed at one end of the water inlet pipe (29) and the drive shaft respectively. The first bevel gear and the second bevel gear are both meshed with the third bevel gear. The third bevel gear is fixed at the output end of the fourth motor (32). The fourth motor (32) is fixed at the upper end of the mixing tank (25). Several first cleaning spray holes are arranged in an array on both sides of the first cleaning rack (34). Several first mixing rods are arranged in an array on the outside of the sleeve shaft (27). Several second mixing rods are arranged in an array on one side of the first cleaning rack (34).

5. The anti-clogging concrete spraying device according to claim 4, characterized in that, The outer side of the sleeve shaft (27) is symmetrically provided with a second cleaning frame (39). The interior of the second cleaning frame (39) is hollow. The outer side of the second cleaning frame (39) is provided with a plurality of second cleaning spray holes. The upper end of the second cleaning frame (39) is connected to a connecting pipe. The other end of the connecting pipe is connected to the interior of the fixed joint (31).

6. The anti-clogging concrete spraying device according to claim 5, characterized in that, A first protective frame (36) is sleeved on the outside of the first cleaning frame (34). A first through hole is provided on the outside of the first protective frame (36) and at the first cleaning nozzle. A first connecting frame is fixedly provided on the upper end of each of the first protective frames (36). A first limiting frame is fixedly provided on the upper end of each of the first connecting frames. The first limiting frame is slidably disposed inside a first limiting ring (37). An extension rod is symmetrically provided on the upper end of the first limiting ring (37). One end of each extension rod extends to the outside of the mixing tank (25). Each extension rod is fixedly connected to the output end of a second electric cylinder (38). The moving cylinder (38) is fixedly installed on the outside of the mixing tank (25). The second cleaning frame (39) is sleeved with a second protective frame (40). The second protective frame (40) and the second cleaning nozzle are provided with second through holes. The upper end of the second protective frame (40) is fixedly provided with a second connecting frame. The upper end of the second connecting frame is fixedly provided with a second limiting frame. The second limiting frame is slidably installed inside the second limiting ring (41). The second limiting ring (41) is symmetrically provided with fixing rods. The two fixing rods are respectively fixedly connected to one end of the two first protective frames (36).

7. The anti-clogging concrete spraying device according to claim 6, characterized in that, The mixing tank (25) is fixedly provided with a scraper (42) at the upper end, and the bottom end of the scraper (42) is in close contact with the upper end of the first cleaning rack (34).

8. The anti-clogging concrete spraying device according to claim 1, characterized in that, The mixing tank (25) is provided with a slag discharge pipe at the bottom, and a bottom plug (43) is installed inside the slag discharge pipe.

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