Rake arm pipe with coral reef rock crushing device

Abstract

This application provides a rake arm pipe with a coral reef crushing device, relating to the technical field of rake arm pipes for trailing suction dredgers. It includes an inlet pipe and an arm pipe disposed at the inlet end of the inlet pipe. The crushing mechanism includes a rotating sleeve rotatably disposed between the inlet pipe and the arm pipe, a fixed column disposed on the rotating sleeve, a fixed rod disposed on the end face of the fixed column, several pressure plates movably disposed outside the fixed column, and a propulsion assembly disposed inside the arm pipe. The rotating mechanism is disposed outside the inlet pipe and is used to drive the crushing mechanism to rotate inside the arm pipe. A sliding sleeve is provided on the inner wall of the inlet pipe, and a filter screen is provided on the inner wall of the sliding sleeve. A pulling mechanism is disposed between the filter screen and the propulsion assembly and is used to drive the filter screen to reciprocate. This application can thoroughly crush the coral reef stones sucked into the arm pipe, preventing coral reef stone accumulation from causing pipe blockage and affecting the operation of the trailing suction dredger.

Description

Technical Field

[0001] This invention relates to the field of trailing suction hopper rig technology, and more specifically, to a trailing suction hopper rig with a coral reef crushing device. Background Technology

[0002] Trailing suction hopper dredgers and cutter suction dredgers are currently the two most widely used types of dredging vessels. Among them, trailing suction hopper dredgers are highly maneuverable, have strong resistance to wind and waves, and can operate in a wide range of water depths. During operation, the dredger head is lowered underwater via the dredger arm. As the vessel travels, the dredger head is dragged by the dredger arm to cut the soil layer. The dredged material is sucked into the fixed body of the dredger head and transported to the mud hopper through the dredger pipe inside the dredger arm. The dredger arm includes the dredger head winch, the dredger center winch, the upper dredger pipe, the lower dredger pipe, and the universal joint.

[0003] Currently, when trailing suction hopper dredgers are used for bow-blowing operations in dredging, backfilling, and coastal protection reclamation projects, due to the thin sand layer and the brittleness of the coral reefs, a large number of coral reef rocks inevitably enter the hull through the suction port of the dredger head. This results in a large accumulation of coral reef rocks inside the hull, making it difficult to pump the rocks out of the hull during bow-blowing operations. Consequently, pipe blockages are easily caused, greatly affecting the efficiency of bow-blowing operations. Summary of the Invention

[0004] The purpose of this invention is to address the problem that existing trailing suction hoppers cannot crush coral reefs when they are sucked into the pipe, leading to blockages that affect the dredging work of the dredging vessel.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution:

[0006] The rake arm pipe with a coral reef rock crushing device includes a mud inlet pipe and an arm pipe disposed at the inlet end of the mud inlet pipe, and further includes:

[0007] The compaction mechanism includes a rotating sleeve rotatably disposed between the mud inlet pipe and the arm pipe, a fixed column disposed on the rotating sleeve, a fixed rod disposed on the end face of the fixed column, several pressure plates movably disposed on the outside of the fixed column, and a propulsion assembly disposed inside the arm pipe.

[0008] A rotating mechanism, which is located outside the mud inlet pipe, is used to drive the compaction mechanism to rotate inside the arm pipe;

[0009] The pulling mechanism is provided with a sliding sleeve on the inner wall of the mud inlet pipe, and a filter screen on the inner wall of the sliding sleeve. The pulling mechanism is located between the filter screen and the propulsion component and is used to drive the filter screen to reciprocate.

[0010] As a preferred technical solution of this application, the outer wall of the fixed column is provided with a fixed seat, the wall of the fixed rod is slidably connected with a sliding seat, the fixed seat and the sliding seat are movably connected with a pressure rod between the inner wall of the pressure plate, the outer wall of the pressure plate is provided with uniformly distributed rolling grooves, the inner wall of the rotating sleeve is provided with a fixed plate, and a connecting rod is provided between the fixed plate and the fixed rod.

[0011] As a preferred technical solution of this application, the propulsion assembly includes a rotating rod rotatably mounted on the wall of the mud inlet pipe, a disc mounted on one end of the rotating rod located inside the mud inlet pipe, a push cylinder slidably mounted on the wall of the fixed rod and abutting against the slide block, a push rod mounted on the outer wall of the push cylinder, a square frame mounted on the end of the push rod away from the push cylinder, and a crank mounted at the center of the bottom of the disc, wherein the end of the crank away from the disc is slidably connected to the inner wall of the square frame.

[0012] As a preferred technical solution of this application, the rotating mechanism includes a box body disposed on the outer wall of the mud inlet pipe, a rotating shaft disposed on the side wall of the box body, a gear disposed on the end of the rotating shaft away from the box body, and a gear ring disposed on the outer wall of the rotating sleeve and meshing with the gear.

[0013] As a preferred technical solution of this application, the housing is further provided with an intermittent mechanism. The intermittent mechanism includes a motor disposed on the inner wall of the housing, an incomplete gear disposed at the output end of the motor, a complete gear disposed on the inner wall of the housing with the rotating shaft located therein and meshing with the incomplete gear, and a torsion spring sleeved on the inner wall of the housing between the complete gear and the inner wall of the housing. The rotating shaft is provided with a driving bevel gear on the inner wall of the housing, and the top of the rotating rod extends into the housing and is provided with a driven bevel gear.

[0014] As a preferred technical solution of this application, sealing rings are provided on both ends of the rotating sleeve, and rotating grooves that cooperate with the sealing rings are provided on the ends of the mud inlet pipe and the arm pipe. A protective shell is also provided between the mud inlet pipe and the arm pipe.

[0015] As a preferred technical solution of this application, the inner wall of the arm tube is provided with a guide block, the side of the guide block away from the mud inlet pipe is tapered, and the width of the guide block is smaller than the inner diameter of the arm tube.

[0016] As a preferred technical solution of this application, the end of the fixed plate away from the connecting rod is provided with a stirring rod that extends outward through the guide block, and the stirring rod is provided with uniformly distributed spiral blades on its rod wall.

[0017] As a preferred technical solution of this application, the pulling mechanism includes a reel disposed on the inner wall of the rotating rod located inside the mud inlet pipe and a cable wound on the reel, wherein the end of the cable away from the reel is connected to the surface of the filter screen.

[0018] As a preferred technical solution of this application, the inner wall of the mud inlet pipe is further provided with a fixing ring, the side wall of the fixing ring is provided with a fixing cylinder, a sliding rod is slidably connected inside the fixing cylinder, a spring is provided between the sliding rod and the bottom wall of the fixing cylinder, and the end of the sliding rod away from the fixing cylinder is connected to the side wall of the sliding sleeve.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] When sludge is sucked into the arm pipe and sludge inlet pipe by the rake head, the propulsion assembly can drive the pusher to slide back and forth on the fixed rod. At this time, the fixed column, fixed seat, sliding seat and pressure rod can drive the pressure plate to expand back and forth, constantly abutting against the inner wall of the sludge inlet pipe, thereby crushing the coral reef mixed in the sludge. This solves the problem in the prior art that the coral reef cannot be crushed when it is sucked into the rake arm pipe along with the sludge, causing the pipe to be blocked and affecting the dredging work of the trailing suction hopper dredger.

[0021] When the propulsion component is in operation, the rotating shaft, gears, and gear rings can drive the fixed column, fixed rod, and pressure plate to rotate, thereby enabling more uniform crushing of the sludge and coral reef inside the suction pipe. The rotating sleeve also drives the guide block and stirring rod to rotate. The guide block allows the sludge and coral reef to flow along the inner wall of the pipe, making it easier for the pressure plate to crush the coral reef thoroughly. The stirring rod also drives the spiral blade to rotate and cut and crush the coral reef, further preventing the pipe from becoming clogged.

[0022] The filter screen can filter and block the gravel in the sludge. At this time, the intermittent mechanism can work with the propulsion component to drive the roller to rotate back and forth. The roller will reciprocate to rewind the cable, which will pull the filter screen to bounce continuously, making it easier to shake off the sludge accumulated on the surface of the filter screen and prevent the filter from being blocked by the sludge. In addition, the intermittent mechanism can also drive the pressure plate and spiral blade to rotate back and forth, further improving the effect of crushing coral reef rocks. Attached Figure Description

[0023] Figure 1 This is an overall structural diagram of the present invention;

[0024] Figure 2 This is a partial cross-sectional structural diagram of the present invention;

[0025] Figure 3 This is a bottom-view cross-sectional structural diagram of the present invention;

[0026] Figure 4 This is a front cross-sectional view of the present invention;

[0027] Figure 5 This is a structural diagram showing the disassembled mud inlet pipe and arm pipe of the present invention;

[0028] Figure 6 This is a structural diagram of the compaction mechanism of the present invention;

[0029] Figure 7 This is a structural diagram of the propulsion component of the present invention;

[0030] Figure 8 This is a structural diagram of the flow guide block of the present invention;

[0031] Figure 9 This is a structural diagram of the filter screen of the present invention;

[0032] Figure 10 For the present invention Figure 2 Enlarged structural diagram at point A in the middle;

[0033] Figure 11 For the present invention Figure 4 Enlarged structural diagram at point B in the middle.

[0034] The image shows:

[0035] 1. Mud inlet pipe; 101. Housing; 2. Arm pipe; 201. Protective shell; 3. Rotating sleeve; 301. Fixing plate; 302. Connecting rod; 303. Sealing ring; 304. Gear ring; 4. Fixing column; 401. Fixing seat; 5. Fixing rod; 501. Slide seat; 6. Pressure rod; 7. Pressure plate; 8. Push cylinder; 9. Rotating rod; 901. Disc; 902. Crank; 903. Square frame; 904. Push rod; 905. Driven bevel gear 10. Wheel; 1001. Motor; 11. Incomplete gear; 12. Shaft; 13. Complete gear; 14. Gear; 15. Torsion spring; 16. Drive bevel gear; 17. Guide block; 18. Stirring rod; 19. Spiral blade; 10. Sliding sleeve; 10. Filter screen; 11. Reel; 12. Cable; 13. Fixing ring; 14. Fixing cylinder; 15. Sliding rod; 16. Spring. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0037] like Figures 1 to 4As shown, this embodiment proposes a rake arm pipe with a coral reef crushing device, including a mud inlet pipe 1 and an arm pipe 2 disposed at the input end of the mud inlet pipe 1. It also includes a crushing mechanism, a rotating mechanism and a pulling mechanism. The crushing mechanism includes a rotating sleeve 3 rotatably disposed between the mud inlet pipe 1 and the arm pipe 2, a fixed column 4 disposed on the rotating sleeve 3, a fixed rod 5 disposed on the end face of the fixed column 4, several pressure plates 7 movably disposed on the outside of the fixed column 4, and a propulsion assembly disposed inside the arm pipe 2. The rotating mechanism is disposed outside the mud inlet pipe 1 and is used to drive the crushing mechanism to rotate inside the arm pipe 2. A sliding sleeve 14 is provided on the inner wall of the mud inlet pipe 1, and a filter screen 1401 is provided on the inner wall of the sliding sleeve 14. The pulling mechanism is disposed between the filter screen 1401 and the propulsion assembly and is used to drive the filter screen 1401 to reciprocate.

[0038] First, the sludge is sucked into the arm pipe 2 and the sludge inlet pipe 1 by the rake head installed on the rake arm pipe and flows into the cabin. At this time, the propulsion component can drive the multiple pressure plates 7 on the outside of the fixed column 4 and the fixed rod 5 to reciprocate and expand, constantly abutting against the inner wall of the sludge inlet pipe 1. This crushes the coral reefs that are sucked into the pipe body along with the sludge, preventing the coral reefs from accumulating inside the pipe body and causing blockage. At the same time, the rotating mechanism can also drive the reciprocatingly expanding pressure plates 7 to rotate axially along the sludge inlet pipe 1, thereby crushing the coral reefs more evenly. The filter screen 1401 can filter and block impurities and stones in the sludge. The pulling mechanism can continuously pull the filter screen 1401, causing the filter screen 1401 to bounce back and forth, shaking off the sludge and impurities accumulated on its surface, preventing the concentrated accumulation of sludge and impurities from clogging the filter screen 1401.

[0039] like Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, in a preferred embodiment, based on the above method, the outer wall of the fixed column 4 is provided with a fixed seat 401, the wall of the fixed rod 5 is slidably connected with a slide block 501, the fixed seat 401 and the slide block 501 are movably connected with a pressure rod 6 between the fixed seat 401 and the inner wall of the pressure plate 7, the outer wall of the pressure plate 7 is provided with uniformly distributed rolling grooves, the inner wall of the rotating sleeve 3 is provided with a fixed plate 301, and a connecting rod 302 is provided between the fixed plate 301 and the fixed rod 5.

[0040] The propulsion assembly includes a rotating rod 9 rotatably mounted on the wall of the mud inlet pipe 1, a disc 901 mounted on one end of the rotating rod 9 inside the mud inlet pipe 1, a push cylinder 8 slidably mounted on the wall of the fixed rod 5 and abutting against the slide block 501, a push rod 904 mounted on the outer wall of the push cylinder 8, a square frame 903 mounted on the end of the push rod 904 away from the push cylinder 8, and a crank 902 mounted at the center of the bottom of the disc 901, with the end of the crank 902 away from the disc 901 slidably connected to the inner wall of the square frame 903.

[0041] The rotating rod 9 drives the disc 901 to rotate. The disc 901 moves the square frame 903 and the push rod 904 back and forth via the crank 902. At this time, the push rod 904 drives the push cylinder 8 to slide back and forth on the fixed rod 5. The push cylinder 8 pushes the slide block 501 to slide back and forth on the fixed rod 5. At this time, the slide block 501 presses the pressure plate 7 on the outside of the fixed column 4 back and forth through the pressure rod 6, causing the pressure plate 7 to expand and contract continuously. Therefore, the reciprocatingly expanding pressure plate 7 will continuously abut against the inner wall of the mud inlet pipe 1, thereby crushing the coral reef mixed in the sludge.

[0042] like Figure 2 , Figure 4 , Figure 5 and Figure 11 As shown, in a preferred embodiment, based on the above method, the rotating mechanism further includes a housing 101 disposed on the outer wall of the mud inlet pipe 1, a rotating shaft 11 rotatably disposed on the side wall of the housing 101, a gear 1102 disposed on the end of the rotating shaft 11 away from the housing 101, and a gear ring 304 disposed on the outer wall of the rotating sleeve 3 and meshing with the gear 1102.

[0043] The rotating shaft 11 can drive the gear 1102 to rotate, which in turn drives the rotating sleeve 3 equipped with the gear ring 304 to rotate. Therefore, the rotating sleeve 3 will drive the fixed column 4 to rotate, which in turn drives the pressure plate 7 to rotate, making it easier to crush the inner wall of the mud inlet pipe 1 at different positions, and making it easier to crush the coral reef more thoroughly.

[0044] The rotating sleeve 3 has sealing rings 303 on both ends, and the mud inlet pipe 1 and the arm pipe 2 have rotating grooves that cooperate with the sealing rings 303 on their ends. A protective shell 201 is also provided between the mud inlet pipe 1 and the arm pipe 2. The sealing rings 303 and the sealing grooves facilitate the stable rotational connection between the rotating sleeve 3 and the mud inlet pipe 1 and the arm pipe 2. The protective shell 201 can also protect the gear ring 304 and the gear 1102, preventing them from being touched by foreign objects and affecting the operation.

[0045] like Figure 10As shown, in a preferred embodiment, based on the above method, the housing 101 is further provided with an intermittent mechanism. The intermittent mechanism includes a motor 10 disposed on the inner wall of the housing 101, an incomplete gear 1001 disposed at the output end of the motor 10, a complete gear 1101 disposed on the inner wall of the rotating shaft 11 located inside the housing 101 and meshing with the incomplete gear 1001, and a torsion spring 1103 sleeved on the inner wall of the rotating shaft 11 located between the complete gear 1101 and the inner wall of the housing 101. The rotating shaft 11 is provided with a driving bevel gear 1104 on the inner wall of the housing 101, and the top of the rotating rod 9 extends into the housing 101 and is provided with a driven bevel gear 905.

[0046] When the motor 10 starts working, it can drive the incomplete gear 1001 connected to its output end to rotate. When the incomplete gear 1001 rotates to the toothed side and contacts the complete gear 1101, it will drive the complete gear 1101 and the rotating shaft 11 to rotate and cause the torsion spring 1103 to rotate. When the incomplete gear 1001 rotates to the toothless side and contacts the complete gear 1101, the torsion spring 1103 will be released from force and drive the complete gear 1101 and the rotating shaft 11 to reverse and reset. Therefore, the rotating shaft 11 can drive the rotating sleeve 3 to reciprocate through the gear 1102 and the gear ring 304. Moreover, the rotating shaft 11 can also drive the rotating rod 9 with the driven bevel gear 905 to reciprocate through the driving bevel gear 1104, thereby further facilitating the thorough crushing of the coral reef stones sucked into the mud pipe 1.

[0047] like Figure 8 As shown, in a preferred embodiment, based on the above method, the inner wall of the arm tube 2 is further provided with a guide block 12. The side of the guide block 12 away from the mud inlet pipe 1 has a conical structure, and the width of the guide block 12 is smaller than the inner diameter of the arm tube 2.

[0048] The fixed plate 301 is provided with a stirring rod 13 extending outward through the guide block 12 at one end away from the connecting rod 302. The stirring rod 13 is provided with evenly distributed spiral blades 1301 on its rod wall.

[0049] The guide block 12 allows the sludge and coral reefs to flow along the inner wall of the arm pipe 2 and the sludge inlet pipe 1, which facilitates the pressure plate 7 to uniformly squeeze the coral reefs. In addition, the rotating sleeve 3 will drive the stirring rod 13 to rotate, and the stirring rod 13 will crush the sludge and coral reefs sucked into the arm pipe 2 through the spiral blades 1301 on its outer wall, further improving the effect of crushing the coral reefs.

[0050] like Figure 4 , Figure 7 and Figure 9As shown, in a preferred embodiment, based on the above method, the pulling mechanism further includes a roller 15 disposed on the inner wall of the rotating rod 9 located inside the mud inlet pipe 1 and a cable 1501 wound on the roller 15. The end of the cable 1501 away from the roller 15 is connected to the surface of the filter screen 1401.

[0051] The inner wall of the mud inlet pipe 1 is also provided with a fixing ring 16, and the side wall of the fixing ring 16 is provided with a fixing cylinder 1601. A sliding rod 1602 is slidably connected inside the fixing cylinder 1601. A spring 1603 is provided between the sliding rod 1602 and the inner bottom wall of the fixing cylinder 1601. The end of the sliding rod 1602 away from the fixing cylinder 1601 is connected to the side wall of the sliding sleeve 14.

[0052] When the rotating rod 9 reciprocates, it can also drive the roller 15 to reciprocate, continuously winding up and releasing the cable 1501. Therefore, when the cable 1501 is wound up, it will pull the filter screen 1401 to slide. At this time, the filter screen 1401 will drive the slide rod 1602 to slide through the sliding sleeve 14 and stretch the spring 1603. When the cable 1501 is released, the spring 1603 will be released and drive the slide rod 1602 and the sliding sleeve 14 to rebound and reset. This will cause the filter screen 1401 to bounce continuously, which will help to shake off the sludge and gravel that are concentrated on the surface of the filter screen 1401, and prevent the sludge and impurities that are accumulated together from clogging the filter screen 1401.

[0053] The working principle of this invention is as follows: First, the sludge is sucked into the arm pipe 2 and the sludge inlet pipe 1 by the rake head installed on the rake arm pipe and flows into the hull. Then, the motor 10 is started, which drives the incomplete gear 1001 connected to its output end to rotate. When the incomplete gear 1001 rotates to the toothed side and contacts the complete gear 1101, it will drive the complete gear 1101 and the rotating shaft 11 to rotate and cause the torsion spring 1103 to rotate. When the incomplete gear 1001 rotates to the toothless side and contacts the complete gear 1101, the torsion spring 1103 will be released from force and drive the complete gear 1101 and the rotating shaft 11 to reverse and reset. Therefore, the rotating shaft 11 can also pass through... The active bevel gear 1104 drives the rotating rod 9, which is equipped with the driven bevel gear 905, to rotate back and forth. The rotating rod 9 drives the disc 901 to rotate. The disc 901 moves the square frame 903 and the push rod 904 back and forth through the crank 902. At this time, the push rod 904 drives the push cylinder 8 to slide back and forth on the fixed rod 5. The push cylinder 8 pushes the slide block 501 to slide on the fixed rod 5. At this time, the slide block 501 presses the pressure plate 7 on the outside of the fixed column 4 back and forth through the pressure rod 6, causing the pressure plate 7 to expand and contract continuously. Therefore, the reciprocatingly expanding pressure plate 7 will continuously abut against the inner wall of the mud inlet pipe 1, thereby crushing the coral reef mixed in the sludge. Furthermore, the rotating shaft 11 can drive the gear 1102 to rotate, which in turn drives the rotating sleeve 3 equipped with the gear ring 304 to rotate. Therefore, the rotating sleeve 3 will drive the fixed column 4 to rotate, which in turn drives the pressure plate 7 to rotate, making it easier to crush the inner wall of different positions of the mud inlet pipe 1, and making it easier to crush the coral reef more thoroughly. The filter screen 1401 can filter and block impurities and stones in the sludge. When the rotating rod 9 rotates back and forth, it can also drive the roller 15 to rotate back and forth, continuously winding up and releasing the cable 1501. Therefore, when the cable 1501 is wound up, it will pull the filter screen 1401 to slide. At this time, the filter screen 1401 will drive the sliding rod 1602 to slide through the sliding sleeve 14 and stretch the spring 1603. When the cable 1501 is released, the spring 1603 will be released and drive the sliding rod 1602 and the sliding sleeve 14 to rebound and reset. This will cause the filter screen 1401 to bounce continuously, which will help to shake off the sludge and stones that are concentrated on the surface of the filter screen 1401, and prevent the sludge and impurities that are piled up together from clogging the filter screen 1401.

[0054] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described herein. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present invention, as well as all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present invention.

Claims

1. A rake arm pipe with a coral reef crushing device, comprising a mud inlet pipe (1) and an arm pipe (2) disposed at the inlet end of the mud inlet pipe (1), characterized in that, Also includes: The compaction mechanism includes a rotating sleeve (3) rotatably disposed between the mud inlet pipe (1) and the arm pipe (2), a fixed column (4) disposed on the rotating sleeve (3), a fixed rod (5) disposed on the end face of the fixed column (4), a number of pressure plates (7) movably disposed on the outside of the fixed column (4), and a propulsion assembly disposed inside the arm pipe (2). A rotating mechanism is provided outside the mud inlet pipe (1) and is used to drive the rolling mechanism to rotate inside the arm pipe (2); The pulling mechanism is provided with a sliding sleeve (14) on the inner wall of the mud inlet pipe (1), and a filter screen (1401) on the inner wall of the sliding sleeve (14). The pulling mechanism is set between the filter screen (1401) and the propulsion component to drive the filter screen (1401) to bounce back and forth. The outer wall of the fixed column (4) is provided with a fixed seat (401), and a sliding seat (501) is slidably connected to the wall of the fixed rod (5). The fixed seat (401) and the sliding seat (501) are movably connected to the inner wall of the pressure plate (7) with pressure rods (6). The outer wall of the pressure plate (7) is provided with uniformly distributed rolling grooves. The inner wall of the rotating sleeve (3) is provided with a fixed plate (301). A connecting rod (302) is provided between the fixed plate (301) and the fixed column (4). The propulsion assembly includes a rotating rod (9) rotatably set on the wall of the mud inlet pipe (1), a disc (901) set on one end of the rotating rod (9) located inside the mud inlet pipe (1), a push cylinder (8) slidably set on the wall of the fixed rod (5) and used to reciprocate to push the sliding seat (501), a push rod (904) set on the outer wall of the push cylinder (8), and a push rod (904) set on the push rod (904). 04) A square frame (903) away from the pusher (8) and a crank (902) set at the center of the bottom of the disc (901). The end of the crank (902) away from the disc (901) is slidably connected to the inner wall of the square frame (903). The rotating mechanism includes a housing (101) set on the outer wall of the mud inlet pipe (1), a rotating shaft (11) set on the side wall of the housing (101), a gear (1102) set on the end of the rotating shaft (11) away from the housing (101), and a gear ring (304) set on the outer wall of the rotating sleeve (3) and meshing with the gear (1102). The rotating shaft (11) is provided with a driving bevel gear (1104) on the rod wall inside the housing (101). The top of the rotating rod (9) extends into the housing (101) and is provided with a driven bevel gear (905).

2. The rake arm pipe with coral reef rock crushing device according to claim 1, characterized in that, The housing (101) is also provided with an intermittent mechanism, which includes a motor (10) disposed on the inner wall of the housing (101), an incomplete gear (1001) disposed at the output end of the motor (10), a complete gear (1101) disposed on the inner wall of the rotating shaft (11) located inside the housing (101) and meshing with the incomplete gear (1001), and a torsion spring (1103) sleeved on the inner wall of the rotating shaft (11) located between the complete gear (1101) and the inner wall of the housing (101).

3. The rake arm pipe with coral reef rock crushing device according to claim 1, characterized in that, The rotating sleeve (3) is provided with sealing rings (303) on both ends. The mud inlet pipe (1) and the arm pipe (2) are provided with rotating grooves that cooperate with the sealing rings (303). A protective shell (201) is also provided between the mud inlet pipe (1) and the arm pipe (2).

4. The rake arm pipe with coral reef rock crushing device according to claim 1, characterized in that, The inner wall of the arm tube (2) is provided with a guide block (12). The side of the guide block (12) away from the mud inlet pipe (1) has a conical structure, and the width of the guide block (12) is smaller than the inner diameter of the arm tube (2).

5. The rake arm pipe with coral reef rock crushing device according to claim 4, characterized in that, The fixed plate (301) is provided with a stirring rod (13) extending outward through the guide block (12) at one end away from the connecting rod (302), and the stirring rod (13) is provided with evenly distributed spiral blades (1301) on the rod wall.

6. The rake arm pipe with coral reef rock crushing device according to claim 1, characterized in that, The pulling mechanism includes a spool (15) located on the inner wall of the rotating rod (9) inside the mud inlet pipe (1) and a cable (1501) wound on the spool (15). The end of the cable (1501) away from the spool (15) is connected to the surface of the filter screen (1401).

7. The rake arm pipe with coral reef rock crushing device according to claim 1, characterized in that, The inner wall of the mud inlet pipe (1) is also provided with a fixing ring (16), and the side wall of the fixing ring (16) is provided with a fixing cylinder (1601). A sliding rod (1602) is slidably connected inside the fixing cylinder (1601). A spring (1603) is provided between the sliding rod (1602) and the bottom wall of the fixing cylinder (1601). The end of the sliding rod (1602) away from the fixing cylinder (1601) is connected to the side wall of the sliding sleeve (14).

Images