Grinding machine

Abstract

The invention relates to the field of grinding machining, in particular to a grinding machine which comprises a supporting base, a sliding block, a workbench, a mounting base, a driving part, a grinding wheel and a water pipe, the sliding block is slidably connected to the upper end of the supporting base, the sliding direction of the sliding block is parallel to the length direction of the sliding block, and the workbench is fixedly connected to the upper end of the sliding block and used for fixing a workpiece. The mounting seat is arranged on one side of the supporting seat, the driving part is fixedly connected to the mounting seat, the grinding wheel is fixedly connected to the driving part, the rotating axis of the grinding wheel is horizontal and perpendicular to the sliding direction of the sliding block, the water pipe is fixedly connected to the outer wall of the driving part, and the water pipe is provided with a water outlet facing the lower end of the grinding wheel. The two ends of the sliding block in the width direction are both arranged above the material collecting groove. Water flows out of the water pipe to cool the grinding wheel and the workpiece, the probability that the grinding wheel and the workpiece are damaged due to too high temperature is reduced, water carries abrasive dust to fall into the material collecting groove, the influence of the abrasive dust on the sliding block is reduced, and the service life of the grinding machine is prolonged.

Description

Technical Field

[0001] The present application relates to the field of grinding, and in particular to a grinding machine. Background Art

[0002] A grinder is a machine tool that uses a grinding wheel to grind the surface of a workpiece. During processing, the grinding wheel rotates at high speed to grind the workpiece to improve the accuracy of the workpiece and reduce the roughness of the workpiece surface. Grinding machines are widely used and are indispensable multifunctional tools in various industrial fields. Their application range covers removing excess materials and achieving precision surface treatment.

[0003] The grinding machine will generate a lot of grinding chips during the processing. If these grinding chips are not cleaned in time, they will be deposited on the slideways, guide rails, bearings and other key parts of the grinding machine. The friction and wear of the grinding chips will cause the temperature of the grinding machine to rise, accelerate the damage of the parts, reduce the accuracy of the grinding machine, and shorten the service life. Summary of the invention

[0004] In order to extend the service life of the grinder, the present application provides a grinder.

[0005] The present application provides a grinding machine adopting the following technical solution: 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein the driving member is a chain which is arranged on the upper end of the driving member and the lower end of the driving member is connected to the base plate of the machine. The driving member is, therefore, required for carrying out the work of polishing the wood-planer and the wood-planer working table.

[0006] By adopting the above technical solution, the sliding block drives the worktable to slide, so that the grinding wheel grinds the workpiece, and the water outlet from the water pipe cools the grinding wheel and the workpiece, reducing the probability of damage to the grinding wheel and the workpiece due to excessive temperature. The water carries the grinding chips into the aggregate trough, reducing the impact of the grinding chips on the sliding block and extending the service life of the grinder.

[0007] Preferably, it also includes a baffle and a partition, the baffle is arranged on the side of the grinding wheel away from the water outlet, the baffle is fixedly connected to one end of the workbench, the partition is fixedly connected to the end of the workbench away from the baffle, and the height of the upper end of the baffle and the height of the upper end of the partition are both greater than the height of the workbench.

[0008] By adopting the above technical solution, the baffle and the partition block the water flow, so that the water carries the grinding chips into the aggregate trough, reducing the probability of grinding interfering with the sliding of the sliding block and extending the service life of the grinder.

[0009] Preferably, it also includes a rib, which is fixedly connected to the upper end of the support seat, and is arranged on the outer periphery of the aggregate trough, and is arranged along the edge of the support seat.

[0010] By adopting the above technical solution, the retaining edge is used to block splashing water stains and grinding chips, reduce pollution to the working environment, and keep the working environment clean and tidy.

[0011] Preferably, it also includes a bellows and a control member, wherein the bellows is arranged on the inner periphery of the retaining edge, one end of the bellows is fixedly connected to the end of the partition away from the baffle, and the other end of the bellows is fixedly connected to the retaining edge, and the control member is arranged in the bellows, the control member is fixedly connected to the retaining edge, and the control member is used to control the sliding of the sliding block.

[0012] By adopting the above technical solution, the bellows protects the control component, reduces the pollution of the control component by external impurities, prolongs the service life of the control component, and prolongs the service life of the grinder.

[0013] Preferably, a connecting surface and a guide surface are provided at the upper end of the sliding block, and two guide surfaces are provided. The two guide surfaces are respectively arranged on both sides of the connecting surface, and the height of the guide surface decreases as it moves away from the connecting surface. The workbench is fixedly connected to the connecting surface, and the guide surface is used to guide the water flow into the aggregate trough.

[0014] By adopting the above technical solution, during the sliding process of the sliding block, the water flow on the workbench surface will approach the baffle or partition due to the effect of inertia, and the collected water flow will flow into the aggregate trough along the guide surface, thereby improving the drainage efficiency.

[0015] Preferably, a drain port is provided at the bottom of the aggregate trough, and a drainage port is provided at the outer wall of the support seat, and the drainage port is connected to the drain port.

[0016] By adopting the above technical solution, it is convenient to discharge the water containing impurities in the aggregate tank.

[0017] Preferably, it also includes a bracket, a rotating column, an impeller, a fixed block, a reciprocating screw, a transmission member and a scraper, the bracket is fixedly connected to the trough wall of the aggregate trough, the rotating column is coaxially rotatably connected to the bracket, the rotating axis of the rotating column is parallel to the sliding direction of the sliding block, the rotating column is arranged below the sliding block, the impeller is coaxially fixedly connected to the outer wall of the rotating column, the end of the impeller facing away from the workbench is arranged on the side of the sliding block away from the workbench, the fixed block is fixedly connected to the bottom of the aggregate trough, the reciprocating screw is rotatably connected to the fixed block around its own axis, the rotating axis of the reciprocating screw is parallel to the rotating axis of the rotating column, the rotating column is connected to the reciprocating screw through a transmission member, the scraper is provided with a threaded opening, the reciprocating screw is threadedly connected to the inner wall of the threaded opening, and the lower end of the scraper abuts the bottom of the aggregate trough.

[0018] By adopting the above technical solution, water flows down along the guide surface, and the water falls on the impeller to drive the rotating column to rotate, the reciprocating screw rotates synchronously, and the scraper slides to clean the bottom of the aggregate trough, making it easier to clean impurities.

[0019] Preferably, it also includes a support block, a dredging rod, a connecting block and a connecting rod, wherein two water outlets are provided, and the two water outlets are respectively provided on both sides of the scraper, the support block is provided directly above the water outlet, the support block is provided with a guide port, the axis of the guide port is colinear with the axis of the water outlet, the dredging rod is slidably connected to the inner wall of the guide port, the dredging rod is used to extend into the water outlet, the connecting block is fixedly connected to the end of the rotating column, one end of the connecting rod is hinged to the end of the connecting block away from the axis of the rotating column, and the other end of the connecting rod is hinged to the upper end of the dredging rod.

[0020] By adopting the above technical solution, the rotating column rotates through the connecting rod to drive the dredging rod to slide up and down in the guide port, which is convenient for dredging the drain outlet, reduces the probability of blockage, facilitates drainage, and improves drainage efficiency.

[0021] In summary, the present application includes at least one of the following beneficial technical effects: 1. The sliding block drives the worktable to slide, so that the grinding wheel grinds the workpiece. The water from the water pipe cools the grinding wheel and the workpiece, reducing the probability of damage to the grinding wheel and the workpiece due to excessive temperature. The water carries the grinding chips into the aggregate tank, reducing the impact of the grinding chips on the sliding block and extending the service life of the grinder. 2. The water flows down along the guide surface, and the water falls on the impeller to drive the rotating column to rotate, the reciprocating screw rotates synchronously, and the scraper slides to clean the bottom of the aggregate trough, making it easier to clean impurities; 3. The rotation of the rotating column drives the dredging rod to slide up and down in the guide port through the connecting rod, which is convenient for dredging the drain outlet, reducing the probability of blockage, facilitating drainage, and improving drainage efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1It is a schematic diagram of the overall structure of a grinding machine.

[0023] Figure 2 It is a schematic diagram of the internal structure of a grinder after it is cut open.

[0024] Figure 3 A cross-sectional view of a grinding machine.

[0025] Figure 4 is a cross-sectional view of the body, bellows, and cleaning assembly.

[0026] Explanation of reference numerals: 1. main body; 11. support seat; 111. sliding groove; 112. collecting groove; 1121. drain outlet; 113. drain outlet; 12. support leg; 13. retaining edge; 131. air inlet; 132. air outlet; 133. one-way valve; 14. sliding block; 141. sliding block; 142. connecting surface; 143. guide surface; 15. workbench; 16. positioning block; 17. partition; 18. baffle; 2. processing assembly; 21. bellows; 22. control component; 221. connecting plate; 222. hydraulic cylinder; 23. mounting seat; 24. drive 1. Parts; 241. Shell; 2411. Installation cavity; 2412. Processing port; 242. Drive motor; 25. Grinding wheel; 26. Water pipe; 261. Water outlet; 3. Cleaning assembly; 31. Bracket; 32. Rotating column; 33. Impeller; 34. Fixed block; 35. Reciprocating screw rod; 36. Scraper; 361. Threaded port; 37. Transmission member; 371. First synchronous wheel; 372. Second synchronous wheel; 373. Synchronous belt; 38. Water tank; 39. Support block; 391. Guide port; 40. Clearing rod; 41. Connecting block; 42. Connecting rod; 43. Exhaust pipe. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-4 This application is described in further detail.

[0028] The present application embodiment discloses a grinding machine. Figure 1 A grinding machine includes a main body 1, a processing component 2 and a cleaning component 3.

[0029] Reference Figure 2The main body 1 includes a support seat 11, a support leg 12, a rib 13, a sliding block 14, a workbench 15, a positioning block 16, a partition 17 and a baffle 18. The support leg 12 is fixedly connected to the lower end of the support seat 11. There are four support legs 12, and the four support legs 12 are respectively close to the four corners of the support seat 11. The rib 13 is fixedly connected to the upper end of the support seat 11, and the rib 13 is arranged along the edge of the support seat 11. The upper end of the support seat 11 is provided with a sliding groove 111 and a collection groove 112. The length direction of the sliding groove 111 is parallel to the length direction of the support seat 11, and the length direction of the collection groove 112 is parallel to the length direction of the sliding groove 111. There are two collection grooves 112, and the two collection grooves 112 are respectively arranged on both sides of the sliding groove 111. The collection groove 112 is arranged close to the rib 13, and the collection groove 112 is used to collect water and grinding chips on the grinder.

[0030] Reference Figure 2 and Figure 3 The sliding block 14 is slidably connected to the upper end of the support seat 11, the length direction of the sliding block 14 is parallel to the length direction of the support seat 11, and both ends of the sliding block 14 in the width direction are arranged above the aggregate trough 112. The lower end of the sliding block 14 is fixedly connected with a sliding block 141, and the sliding block 141 is slidably connected to the groove wall of the sliding groove 111, and the sliding direction of the sliding block 141 is parallel to the length direction of the sliding groove 111. The upper end of the sliding block 14 is provided with a connecting surface 142 and a guide surface 143, both of which extend along the length direction of the sliding block 14, and the length direction of the connecting surface 142 is parallel to the guide surface 143. There are two guide surfaces 143, which are respectively arranged on both sides of the connecting surface 142, and the connecting surface 142 and the guide surface 143 have a smooth transition. The height of the guide surface 143 decreases as it moves away from the connecting surface 142, and the guide surface 143 is used to guide the water flow into the aggregate trough 112.

[0031] Reference Figure 3 The workbench 15 is fixedly connected to the connecting surface 142, the length of the workbench 15 is equal to the length of the connecting surface 142, the width of the workbench 15 is equal to the width of the connecting surface 142, the workbench 15 is set as a magnetic suction cup, and the positioning block 16 is placed on the workbench 15, the positioning block 16 is set as an iron block, and there are multiple positioning blocks 16. When the workpiece is placed on the workbench 15, the multiple positioning blocks 16 move to abut the outer wall of the workpiece, and the workbench 15 is powered on to adsorb the positioning blocks 16 to fix the workpiece.

[0032] Reference Figure 2The partition 17 is fixedly connected to one end of the sliding block 14 and the workbench 15, and the baffle 18 is fixedly connected to the other end of the sliding block 14 and the workbench 15. The height of the upper ends of the partition 17 and the baffle 18 are greater than the height of the workbench 15. The partition 17 and the baffle 18 are used to block splashing water stains and at the same time block the water flow gathered by inertia, and guide the water flow into the aggregate trough 112.

[0033] Reference Figure 2 and Figure 3 The processing assembly 2 includes a bellows 21, a control member 22, a mounting seat 23, a driving member 24, a grinding wheel 25 and a water pipe 26. The bellows 21 is arranged on the inner periphery of the rib 13, the bellows 21 is arranged above the support seat 11, one end of the bellows 21 is fixedly connected to the end of the partition 17 away from the baffle 18, and the other end of the bellows 21 is fixedly connected to the rib 13. The control member 22 is arranged in the bellows 21, and the control member 22 includes a connecting plate 221 and a hydraulic cylinder 222. The connecting plate 221 is fixedly connected to the rib 13, the cylinder body of the hydraulic cylinder 222 is fixedly connected to the upper end of the connecting plate 221, and the piston rod of the hydraulic cylinder 222 is fixedly connected to the partition 17. The control member 22 is used to control the sliding of the sliding block 14.

[0034] Reference Figure 2 and Figure 4 The retaining edge 13 is provided with an air inlet 131 and an air outlet 132, both of which are connected to the bellows 21, and the inner walls of the air inlet 131 and the air outlet 132 are fixedly connected with a one-way valve 133, which allows air to enter the bellows 21 from the air inlet 131 and be discharged from the bellows 21 from the air outlet 132.

[0035] Reference Figure 3 The mounting seat 23 is arranged on one side of the support seat 11, and the mounting seat 23 is fixedly connected to the support seat 11. The driving member 24 includes a shell 241 and a driving motor 242. The shell 241 is fixedly connected to one end of the mounting seat 23 facing the support seat 11. The shell 241 is arranged above the workbench 15. The shell 241 is provided with a mounting cavity 2411. The motor shell of the driving motor 242 is fixedly connected to the inner wall of the mounting cavity 2411. The motor shaft of the driving motor 242 is coaxially fixedly connected to the grinding wheel 25. The lower end of the shell 241 is provided with a processing opening 2412. The lower end of the grinding wheel 25 extends out of the processing opening 2412, and the rotation axis of the grinding wheel 25 is parallel to the width direction of the workbench 15.

[0036] Reference Figure 2 The water pipe 26 is arranged on a side of the shell 241 away from the baffle 18. The water pipe 26 is fixedly connected to the outer wall of the shell 241. A water outlet 261 is arranged at the lower end of the water pipe 26. The water outlet 261 faces the lower end of the grinding wheel 25. The water discharged from the water outlet 261 is splashed onto the baffle 18 by the action of the grinding wheel 25.

[0037] Reference Figure 2 and Figure 4 There are two cleaning components 3, and the cleaning components 3 are arranged one by one corresponding to the collecting trough 112. The cleaning component 3 includes a bracket 31, a rotating column 32, an impeller 33, a fixed block 34, a reciprocating screw 35, a scraper 36, a transmission member 37, a water receiving trough 38, a support block 39, a dredging rod 40, a connecting block 41, a connecting rod 42 and an exhaust pipe 43.

[0038] Reference Figure 3 and Figure 4 The bracket 31 is fixedly connected to the groove wall of the aggregate trough 112, and two brackets 31 are provided. The two brackets 31 are respectively close to the two ends of the aggregate trough 112, and the rotating column 32 is coaxially rotatably connected to the two brackets 31. The rotating axis of the rotating column 32 is parallel to the sliding direction of the sliding block 14, and the rotating column 32 is arranged below the sliding block 14. The impeller 33 is coaxially fixedly connected to the outer wall of the rotating column 32, and the impeller 33 is arranged between the two brackets 31. The end of the impeller 33 away from the workbench 15 is arranged on the side of the sliding block 14 away from the workbench 15. There are two impellers 33, and the two impellers 33 are respectively close to the two brackets 31. The sliding block 14 slides back and forth on the support seat 11. When the bellows 21 is shortest, one impeller 33 is arranged below one end of the sliding block 14 close to the bellows 21. When the bellows 21 is longest, the other impeller 33 is arranged below one end of the sliding block 14 away from the bellows 21.

[0039] Reference Figure 4 The fixed block 34 is fixedly connected to the bottom of the aggregate trough 112. Two fixed blocks 34 are provided. The two ends of the reciprocating screw rod 35 are respectively connected to the two fixed blocks 34 for rotation around their own axes. The rotation axis of the reciprocating screw rod 35 is parallel to the rotation axis of the rotating column 32. The scraper 36 is provided between the two fixed blocks 34. The scraper 36 is provided with a threaded opening 361. The reciprocating screw rod 35 is threadedly connected to the inner wall of the threaded opening 361. The lower end of the scraper 36 abuts against the bottom of the aggregate trough 112. The rotating column 32 is connected to the reciprocating screw rod 35 through a transmission member 37. The transmission member 37 includes a first synchronous wheel 371, a second synchronous wheel 372 and a synchronous belt 373. The first synchronous wheel 371 is coaxially fixedly connected to the outer wall of the rotating column 32. The first synchronous wheel 371 is arranged between the bracket 31 and the impeller 33. The second synchronous wheel 372 is coaxially fixedly connected to the outer wall of the reciprocating screw rod 35. The second synchronous wheel 372 is arranged between the scraper 36 and the fixed block 34. The synchronous belt 373 is sleeved on the outer periphery of the first synchronous wheel 371 and the second synchronous wheel 372.

[0040] Reference Figure 2 and Figure 4A drain port 1121 is provided at the bottom of the aggregate trough 112. Two drain ports 1121 are provided. The two drain ports 1121 are respectively provided on both sides of the scraper 36. A drain port 113 is provided at the lower end of the support seat 11. The drain port 113 is connected to the drain port 1121. The water receiving trough 38 is fixedly connected to the ground. The water receiving trough 38 is used to receive water discharged from the drain port 113. There are two support blocks 39, and the support blocks 39 are arranged in a one-to-one correspondence with the water outlet 1121. The support block 39 is arranged directly above the water outlet 1121. The support block 39 is provided with a guide port 391, and the axis of the guide port 391 is colinear with the axis of the water outlet 1121. The dredging rod 40 is slidably connected to the inner wall of the guide port 391. The dredging rod 40 is used to extend into the water outlet 1121. The connecting block 41 is fixedly connected to the end of the rotating column 32, one end of the connecting rod 42 is hinged to the end of the connecting block 41 away from the axis of the rotating column 32, and the other end of the connecting rod 42 is hinged to the upper end of the dredging rod 40.

[0041] One end of the exhaust pipe 43 is coaxially fixedly connected to the inner wall of the air outlet 132, and the other end of the exhaust pipe 43 faces the impeller 33. The exhausted gas assists the impeller 33 to rotate. At the same time, the rotation of the impeller 33 accelerates the air circulation in the bellows 21, which is convenient for heat dissipation of the control component 22.

[0042] The implementation principle of a grinder in an embodiment of the present application is as follows: the processing component 2 controls the sliding block 14 to move back and forth, controls the grinding wheel 25 to rotate, and realizes grinding processing on the workpiece. The water discharged from the water pipe 26 cools the grinding wheel 25 and the workpiece. The partition 17, the baffle 18 and the retaining edge 13 are all used to prevent water splashing and collect water flow. The water flows into the aggregate trough 112, so that the impeller 33 rotates, and the rotating column 32 rotates to drive the reciprocating screw 35 to rotate through the transmission member 37, thereby cleaning the aggregate trough 112 and making the dredging rod 40 slide up and down to dredge the drain.

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A grinding machine, characterized in that: The invention comprises a support seat (11), a sliding block (14), a workbench (15), a mounting seat (23), a driving member (24), a grinding wheel (25) and a water pipe (26), wherein the sliding block (14) is slidably connected to the upper end of the support seat (11), the sliding direction of the sliding block (14) is parallel to the length direction of the sliding block (14), the workbench (15) is fixedly connected to the upper end of the sliding block (14), the workbench (15) is used to fix a workpiece, the mounting seat (23) is arranged on one side of the support seat (11), the driving member (24) is fixedly connected to the mounting seat (23), the grinding wheel (25) is fixedly connected to the upper end of the sliding block (14), and the workbench (15) is used to fix a workpiece. The supporting seat (11) is connected to a driving member (24), the driving member (24) is used to control the rotation of a grinding wheel (25), the rotation axis of the grinding wheel (25) is horizontal and perpendicular to the sliding direction of the sliding block (14), the water pipe (26) is fixedly connected to the outer wall of the driving member (24), the water pipe (26) is provided with a water outlet (261), the water outlet (261) faces the lower end of the grinding wheel (25), the upper end of the supporting seat (11) is provided with a collecting trough (112), both ends of the sliding block (14) in the width direction are arranged above the collecting trough (112), and the collecting trough (112) is used to collect water and grinding chips on the grinding machine.

2. A grinding machine according to claim 1, characterized in that: It also comprises a baffle (18) and a partition (17), wherein the baffle (18) is arranged on a side of the grinding wheel (25) away from the water outlet (261), the baffle (18) is fixedly connected to one end of the workbench (15), and the partition (17) is fixedly connected to one end of the workbench (15) away from the baffle (18), and the height of the upper end of the baffle (18) and the height of the upper end of the partition (17) are both greater than the height of the workbench (15).

3. A grinding machine according to claim 2, characterized in that: It also comprises a retaining edge (13), wherein the retaining edge (13) is fixedly connected to the upper end of the support seat (11), the retaining edge (13) is arranged on the outer periphery of the collecting trough (112), and the retaining edge (13) is arranged along the edge of the support seat (11).

4. A grinding machine according to claim 3, characterized in that: It also includes a bellows (21) and a control member (22), wherein the bellows (21) is arranged on the inner periphery of the retaining edge (13), one end of the bellows (21) is fixedly connected to an end of the partition (17) away from the baffle (18), and the other end of the bellows (21) is fixedly connected to the retaining edge (13), and the control member (22) is arranged in the bellows (21), the control member (22) is fixedly connected to the retaining edge (13), and the control member (22) is used to control the sliding of the sliding block (14).

5. A grinding machine according to claim 2, characterized in that: The upper end of the sliding block (14) is provided with a connecting surface (142) and a guide surface (143), two guide surfaces (143) are provided, and the two guide surfaces (143) are respectively arranged on both sides of the connecting surface (142), and the height of the guide surface (143) decreases as it moves away from the connecting surface (142), and the workbench (15) is fixedly connected to the connecting surface (142), and the guide surface (143) is used to guide water flow into the aggregate tank (112).

6. A grinding machine according to claim 5, characterized in that: The bottom of the aggregate trough (112) is provided with a water outlet (1121), the outer wall of the support seat (11) is provided with a water outlet (113), and the water outlet (113) is connected to the water outlet (1121).

7. A grinding machine according to claim 6, characterized in that: The machine also comprises a bracket (31), a rotating column (32), an impeller (33), a fixed block (34), a reciprocating screw (35), a transmission member (37) and a scraper (36), wherein the bracket (31) is fixedly connected to the groove wall of the collecting groove (112), the rotating column (32) is coaxially rotatably connected to the bracket (31), the rotating axis of the rotating column (32) is parallel to the sliding direction of the sliding block (14), the rotating column (32) is arranged below the sliding block (14), the impeller (33) is coaxially fixedly connected to the outer wall of the rotating column (32), and the end of the impeller (33) facing away from the workbench (15) is arranged at The sliding block (14) is located at a side away from the workbench (15); the fixed block (34) is fixedly connected to the bottom of the material collecting trough (112); the reciprocating screw rod (35) is rotatably connected to the fixed block (34) around its own axis; the rotation axis of the reciprocating screw rod (35) is parallel to the rotation axis of the rotating column (32); the rotating column (32) is connected to the reciprocating screw rod (35) through a transmission member (37); the scraper (36) is provided with a threaded opening (361); the reciprocating screw rod (35) is threadedly connected to the inner wall of the threaded opening (361); and the lower end of the scraper (36) abuts against the bottom of the material collecting trough (112).

8. A grinding machine according to claim 7, characterized in that: The invention also comprises a support block (39), a dredging rod (40), a connecting block (41) and a connecting rod (42); two water outlets (1121) are provided, and the two water outlets (1121) are respectively provided on both sides of the scraper (36); the support block (39) is provided directly above the water outlet (1121); the support block (39) is provided with a guide opening (391); the axis of the guide opening (391) is colinear with the axis of the water outlet (1121); the dredging rod (40) is slidably connected to the inner wall of the guide opening (391); the dredging rod (40) is used to extend into the water outlet (1121); the connecting block (41) is fixedly connected to the end of the rotating column (32); one end of the connecting rod (42) is hinged to one end of the connecting block (41) away from the axis of the rotating column (32); and the other end of the connecting rod (42) is hinged to the upper end of the dredging rod (40).

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