A drainage device

Abstract

The present invention relates to the technical field of drainage equipment, specifically a drainage equipment, including a drainage equipment body, and a drainage tank cover covered on the drainage equipment body, the right side of the drainage tank cover is penetrated with a movable shaft, and the left side is provided with a locking mechanism; the interior of the drainage tank cover is penetrated with a drainage pipe and a vent pipe, the top of the drainage pipe is connected with a drainage pipe, one end of the vent pipe is connected with an exhaust pipe, the top of the exhaust pipe is provided with an exhaust hole, and the exhaust pipe is provided with a piston inside. The motor provided in the present invention can drive the turntable to rotate, because one end of the connecting rod is movably pinned to the turntable, and the other end is movably connected to the push-pull rod through the movable shaft, the turntable can drive one end of the connecting rod to make a circular motion, and the other end pulls the push-pull rod to move back and forth through the movable shaft, and the push-pull rod can push the piston to move back and forth inside the exhaust pipe, which is used to quickly extract the gas inside the drainage equipment body, so that negative pressure is generated inside the drainage equipment body.

Description

Technical Field

[0001] The invention relates to the technical field of drainage equipment, in particular to a drainage equipment. Background Art

[0002] Drainage devices can be used to negatively pressure the accumulated fluid in the body, or some inflammatory exudates, digestive fluids, blood and necrotic tissues that are inappropriately accumulated in the body.

[0003] After searching, in a drainage device with publication number CN219804042U, the invention discloses a drainage device, which relates to the technical field of medical devices, including a drainage bottle assembly, the drainage bottle assembly includes a bottle body, a placement ring is arranged at the upper position inside the bottle body, the placement ring is fixed to the inner side of the bottle body by bolts, the inner side wall of the bottle body is connected with a clamping plate by a hinge, and the clamping plate covers the upper part of the placement ring, the inner side of the clamping plate is provided with an extrusion plate, and the top of the extrusion plate is installed with a bearing. The invention can place a filling bag inside the bottle body by arranging a placement ring inside the bottle body, and fix the edge of the bag with the extrusion plate through the clamping plate through a threaded rod to keep the bag body stable, which can avoid the need to clean it after each use, or the situation that bacteria remain due to improper cleaning, and a pull ring is arranged on the outer side of the cover body, which can drive the card block to separate from the card slot by pulling the pull ring, so as to facilitate the quick and convenient opening of the cover body and improve the use efficiency. The drainage device has the following problems:

[0004] Generally, drainage devices use springs and blocks to position the cover, and the cover needs to be aligned with the drainage bottle. The two sides of the cover are restricted separately, which is not convenient for using a single-side locking method to provide a quick closing method for the cover;

[0005] Generally, drainage equipment uses a negative pressure device to provide negative pressure for the drainage bottle, which is inconvenient and has a slow pressure relief efficiency, and is not convenient for providing rapid pressure relief for the drainage bottle.

[0006] In view of the above problems, we propose a drainage device. Summary of the invention

[0007] The object of the present invention is to provide a drainage device to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A drainage device comprises a drainage device body and a drainage tank cover covering the drainage device body, wherein a movable shaft is provided on the right side of the drainage tank cover and a locking mechanism is provided on the left side;

[0010] A drain pipe and a vent pipe are provided inside the drainage tank cover, a mounting mechanism is provided outside the drain pipe, and a filter cartridge is connected to the bottom of the vent pipe;

[0011] A drainage pipe is connected to the top of the discharge pipe, an exhaust pipe is connected to one end of the ventilation pipe, an exhaust hole is provided on the top of the exhaust pipe, a piston is provided inside the exhaust pipe, two notches are provided inside the piston, a push-pull rod is connected to the right side of the piston, a turntable is provided on the right side of the exhaust pipe, a connecting rod is provided above the turntable, and a movable shaft is connected between the connecting rod and the push-pull rod.

[0012] Preferably, the bottom of the drainage tank cover is connected to an inner ring seat, the outer wall of the inner ring seat is sleeved with a sealing ring, and the sealing ring is in contact with the drainage device body.

[0013] Preferably, the locking mechanism comprises a fixing plate connected to the drainage tank cover, a movable cavity is opened inside the fixing plate, an "L-shaped" locking plug is arranged inside the movable cavity, a movable screw rod is passed through the locking plug rod, a second bevel gear is connected to the input end of the movable screw rod, a first bevel gear is arranged on the left side of the second bevel gear, and a handle is connected to the input end of the first bevel gear;

[0014] The handle is meshed with a movable screw through a first bevel gear and a second bevel gear, and the movable screw passes through the interior of the locking plug;

[0015] A locking groove is provided on the left side of the outer wall of the drainage device body, and the locking groove is partially adapted to the right end of the locking plug block.

[0016] Preferably, one end of the connecting rod is movably pin-connected to the turntable, and the other end is movably connected to the push-pull rod via a movable shaft, and the push-pull rod is fixedly connected to the piston.

[0017] Preferably, a flap is provided on both sides of the piston, one end of the flap is connected to a movable gear, the two movable gears are meshed, a fixed shaft is passed through the inside of the movable gear, the movable gear is fixedly connected to the flap, and is movably connected to the piston through the fixed shaft, and the inner wall of the piston is connected to a limiting ring.

[0018] Preferably, a connecting spring is connected between the flap and the piston, and the flap and the piston are elastically connected via the connecting spring.

[0019] Preferably, the installation mechanism comprises a connecting column threadedly matched with the drainage tank cover, a sealing air ring is provided at the bottom of the connecting column, the sealing air ring is connected to a hose, and the hose is connected to a latex ball;

[0020] The latex ball is communicated with the sealing air ring through a hose.

[0021] Preferably, clamping plates are provided on both sides of the interior of the connecting column, and rubber pads are bonded to the surfaces of the clamping plates;

[0022] A guide slot is provided on the inner wall of the connecting column, two internal thread blocks are passed through the guide slot, the internal thread blocks are fixedly connected to the clamping plate, a bidirectional screw rod is passed through the two internal thread blocks, and a rotating handle is connected to the input end of the bidirectional screw rod.

[0023] Preferably, an inner cylinder is provided at the bottom of the filter cylinder, and a plurality of fixed mesh plates are connected to the inner cylinder;

[0024] A partition is fixed on the top of the filter cartridge, and a plurality of filter holes are opened inside the partition.

[0025] Preferably, a mounting screw is provided on the right side of the bottom of the filter cartridge, and both ends of the mounting screw are respectively connected to a mounting plate and a mounting handle.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The present invention can rotate the drainage can cover around the movable shaft as the axis, change the rotation angle of the drainage can cover, and cover the drainage can cover on the top of the drainage device body, and then rotate the first bevel gear through the handle to push the second bevel gear and the movable screw rod to rotate synchronously, and the movable screw rod can push the locking plug block to move, so that one end of the locking plug block is inserted into the interior of the locking groove, thereby limiting the position of the drainage can cover and maintaining the closed state of the drainage can cover.

[0028] The motor provided in the present invention can drive the turntable to rotate. Since one end of the connecting rod is movably pin-connected to the turntable, and the other end is movably connected to the push-pull rod through a movable shaft, the turntable can drive one end of the connecting rod to make a circular motion, and the other end pulls the push-pull rod to move back and forth through the movable shaft. The push-pull rod can push the piston to move back and forth inside the exhaust pipe, which is used to quickly extract the gas inside the drainage device body, so that negative pressure is generated inside the drainage device body.

[0029] By repeatedly squeezing the latex ball, the invention can introduce external gas into the interior of the sealing air ring through a hose, so that the sealing air ring gradually expands to fill the gap between the connecting column and the drainage pipe.

[0030] The inner cylinder can be inserted into the filter cartridge, and then the mounting handle is rotated to rotate the mounting screw to push the mounting plate to move so that the mounting plate is against the inner cylinder to limit the position of the inner cylinder. The inner cylinder is installed inside the filter cartridge, and the gas can be filtered through several fixed mesh plates inside the inner cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structure of the present invention;

[0032] Figure 2 For the present invention Figure 1A schematic diagram of the partially enlarged structure at center A;

[0033] Figure 3 For the present invention Figure 1 A schematic diagram of the partially enlarged structure at B in the middle;

[0034] Figure 4 For the present invention Figure 1 A schematic diagram of the partially enlarged structure at C in the middle;

[0035] Figure 5 It is a schematic diagram of the internal structure of the connecting column of the present invention;

[0036] Figure 6 For the present invention Figure 1 The schematic diagram of the local enlarged structure at D in the middle;

[0037] Figure 7 It is a schematic diagram of the internal structure of the filter cartridge of the present invention.

[0038] In the figure: 1, drainage device body; 2, drainage pipe; 3, ventilation pipe; 4, movable shaft; 5, exhaust pipe; 6, exhaust hole; 7, drainage pipe; 8, drainage tank cover; 9, inner ring seat; 10, sealing ring; 11, locking groove; 12, locking plug; 13, movable cavity; 14, movable screw rod; 15, handle; 16, first bevel gear; 17, second bevel gear; 18, fixed plate; 19, motor; 20, turntable; 21, connecting rod; 22, movable shaft; 23, movable gear; 2 4. Flap; 25. Connecting spring; 26. Push-pull rod; 27. Limiting ring; 28. Piston; 29. ​​Notch; 30. Connecting column; 31. Hose; 32. Latex ball; 33. Sealing air ring; 34. Clamping plate; 35. Rubber pad; 36. Guide slide groove; 37. Internal thread block; 38. Bidirectional screw; 39. Turn handle; 40. Filter cartridge; 41. Inner cartridge; 42. Fixed mesh plate; 43. Mounting screw; 44. Mounting plate; 45. Mounting handle; 46. Partition plate; 47. Filter hole. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0040] like Figure 1 and Figure 2As shown, a drainage device comprises a drainage device body 1, and a drainage cup cover 8 covered on the drainage device body 1, a movable shaft 4 is penetrated on the right side of the drainage cup cover 8, and a locking mechanism is arranged on the left side, the locking mechanism comprises a fixing plate 18 connected to the drainage cup cover 8, a movable cavity 13 is opened inside the fixing plate 18, an "L-shaped" locking plug 12 is arranged inside the movable cavity 13, a movable screw rod 14 is penetrated inside the locking plug 12, a second bevel gear 17 is connected to the input end of the movable screw rod 14, a first bevel gear 16 is arranged on the left side of the second bevel gear 17, a handle 15 is connected to the input end of the first bevel gear 16, and the handle 15 is connected to the first bevel gear 16 and the second bevel gear 1 7 is meshed with the movable screw rod 14, and the movable screw rod 14 passes through the interior of the locking plug block 12. A locking groove 11 is opened on the left side of the outer wall of the drainage device body 1, and the locking groove 11 is partially adapted to the right end of the locking plug block 12. The drainage tank cover 8 can be rotated with the movable shaft 4 as the axis, the rotation angle of the drainage tank cover 8 can be changed, and the drainage tank cover 8 is covered on the top of the drainage device body 1. Then, the first bevel gear 16 is rotated by the handle 15 to push the second bevel gear 17 and the movable screw rod 14 to rotate synchronously. The movable screw rod 14 can push the locking plug block 12 to move, so that one end of the locking plug block 12 is inserted into the interior of the locking groove 11, thereby limiting the position of the drainage tank cover 8 and maintaining the covered state of the drainage tank cover 8.

[0041] like Figure 1 and Figure 3 As shown, a drain pipe 2 and a vent pipe 3 are provided inside the drainage tank cover 8, a mounting mechanism is provided outside the drain pipe 2, and a filter cartridge 40 is connected to the bottom of the vent pipe 3;

[0042] The top of the discharge pipe 2 is connected to a drainage pipe 7, one end of the ventilation pipe 3 is connected to an exhaust pipe 5, the top of the exhaust pipe 5 is provided with an exhaust hole 6, a piston 28 is provided inside the exhaust pipe 5, two notches 29 are provided inside the piston 28, a push-pull rod 26 is connected to the right side of the piston 28, a turntable 20 is provided on the right side of the exhaust pipe 5, a connecting rod 21 is provided above the turntable 20, a movable shaft 22 is connected between the connecting rod 21 and the push-pull rod 26, and one end of the connecting rod 21 is movable with the turntable 20. The motor 19 can drive the turntable 20 to rotate. Since one end of the connecting rod 21 is movably pin-connected to the turntable 20, and the other end is movably connected to the push-pull rod 26 through the movable shaft 22, the turntable 20 can drive one end of the connecting rod 21 to make a circular motion, and the other end pulls the push-pull rod 26 to move back and forth through the movable shaft 22. The push-pull rod 26 can push the piston 28 to move back and forth inside the exhaust pipe 5.

[0043] like Figure 1 and Figure 2As shown, the bottom of the drainage pot cover 8 is connected to an inner ring seat 9, and the outer wall of the inner ring seat 9 is provided with a sealing ring 10, which is in contact with the drainage device body 1. The sealing ring 10 can be used to make up the distance between the drainage pot cover 8 and the drainage device body 1, and provide sealing for the drainage device body 1.

[0044] like Figure 1 and Figure 4 As shown, both sides of the piston 28 are provided with flaps 24, one end of the flap 24 is connected to a movable gear 23, the two movable gears 23 are meshed, a fixed shaft is passed through the inside of the movable gear 23, the movable gear 23 is fixedly connected to the flap 24, and is movably connected to the piston 28 through the fixed shaft, the inner wall of the piston 28 is connected to a limit ring 27, a connecting spring 25 is connected between the flap 24 and the piston 28, the flap 24 and the piston 28 are elastically connected through the connecting spring 25, when the piston 28 moves to the right, the limit ring 27 blocks the flap 24 from rotating, at this time, the flap 2 The notch 29 is closed, and the piston 28 moves rightward inside the exhaust pipe 5, and the gas inside the drainage device body 1 is sucked out through the vent pipe 3. The gas on the right side of the piston 28 is discharged through the exhaust hole 6. When the piston 28 moves leftward, the flap 24 rotates around the fixed axis and compresses the connecting spring 25. Since the two movable gears 23 are engaged, the two flaps 24 are opened synchronously. At this time, the notch 29 conducts the exhaust pipe 5, reducing the resistance of the piston 28 to move, so as to quickly extract the gas inside the drainage device body 1, so that negative pressure is generated inside the drainage device body 1.

[0045] like Figure 1 and Figure 5 As shown, the installation mechanism includes a connecting column 30 threadedly matched with the drainage can cover 8, a sealing air ring 33 is provided at the bottom of the connecting column 30, the sealing air ring 33 is connected to a hose 31, and the hose 31 is connected to a latex ball 32;

[0046] The latex ball 32 is connected to the sealing air ring 33 through the hose 31. By repeatedly squeezing the latex ball 32, external gas can be introduced into the interior of the sealing air ring 33 through the hose 31, so that the sealing air ring 33 gradually expands to fill the gap between the connecting column 30 and the drain pipe 2, thereby improving the sealing performance.

[0047] like Figure 5 and Figure 6 As shown, a clamping plate 34 is provided on both sides of the interior of the connecting column 30, and a rubber pad 35 is bonded to the surface of the clamping plate 34;

[0048] A guide slot 36 is provided on the inner wall of the connecting column 30, and two internal thread blocks 37 are passed through the guide slot 36. The internal thread blocks 37 are fixedly connected to the clamping plate 34. A bidirectional screw rod 38 is passed through the two internal thread blocks 37. A turning handle 39 is connected to the input end of the bidirectional screw rod 38, and the bidirectional screw rod 38 can be rotated by the turning handle 39. Since the two parts of the threads on the internal thread blocks 37 corresponding to the bidirectional screw rod 38 are opposite, the internal thread blocks 37 can push the two internal thread blocks 37 to approach each other along the guide slot 36. Since the internal thread blocks 37 are fixedly connected to the clamping plate 34, the internal thread blocks 37 and the clamping plate 34 can be moved synchronously, so that the two clamping plates 34 clamp the drain pipe 2, and the friction force on the drain pipe 2 is increased by the rubber pad 35, which can improve the stability of the installation of the drain pipe 2.

[0049] like Figure 7 As shown, an inner cylinder 41 is provided at the bottom of the filter cylinder 40, and a plurality of fixed mesh plates 42 are connected to the inner cylinder 41;

[0050] A partition 46 is fixed to the top of the filter cartridge 40 , and a plurality of filter holes 47 are provided inside the partition 46 . The gas can be filtered through a plurality of fixed mesh plates 42 inside the inner cartridge 41 , and the gas can be dispersed through the plurality of filter holes 47 of the partition 46 .

[0051] like Figure 7 As shown, a mounting screw 43 is provided on the right side of the bottom of the filter cartridge 40, and both ends of the mounting screw 43 are respectively connected to a mounting plate 44 and a mounting handle 45, so that the inner cylinder 41 can be inserted into the interior of the filter cartridge 40, and then the mounting handle 45 is rotated to rotate the mounting screw 43 to push the mounting plate 44 to move, so that the mounting plate 44 is against the inner cylinder 41, which can limit the position of the inner cylinder 41 and install the inner cylinder 41 inside the filter cartridge 40.

[0052] Working principle:

[0053] First, when in use, the connecting column 30 is threadedly installed on the drainage tank cover 8, and then the drainage pipe 2 is inserted into the interior of the drainage device body 1 through the connecting column 30. Then, the bidirectional screw rod 38 can be rotated by the turning handle 39. Since the two parts of the threads on the internal thread block 37 corresponding to the bidirectional screw rod 38 are opposite, the internal thread block 37 can push the two internal thread blocks 37 to approach each other along the guide groove 36. Since the internal thread block 37 is fixedly connected to the clamping plate 34, the internal thread block 37 and the clamping plate 34 can be moved synchronously, so that the two clamping plates 34 clamp the drainage pipe 2. Then, by repeatedly squeezing the latex ball 32, the external gas can be introduced into the interior of the sealing gas ring 33 through the hose 31, so that the sealing gas ring 33 gradually expands to make up for the gap between the connecting column 30 and the drainage pipe 2.

[0054] Secondly, the drainage can cover 8 can be rotated with the movable shaft 4 as the axis to change the rotation angle of the drainage can cover 8, and the drainage can cover 8 is covered on the top of the drainage device body 1, and then, the first bevel gear 16 is rotated by the handle 15 to push the second bevel gear 17 and the movable screw rod 14 to rotate synchronously, and the movable screw rod 14 can push the locking plug 12 to move, so that one end of the locking plug 12 is inserted into the locking groove 11, thereby limiting the position of the drainage can cover 8 and maintaining the closed state of the drainage can cover 8;

[0055] Then, the inner cylinder 41 can be inserted into the interior of the filter cartridge 40, and then the mounting handle 45 is rotated to rotate the mounting screw 43 to push the mounting plate 44 to move, so that the mounting plate 44 is against the inner cylinder 41, which can limit the position of the inner cylinder 41 and install the inner cylinder 41 in the interior of the filter cartridge 40. Then, the motor 19 can drive the turntable 20 to rotate. Since one end of the connecting rod 21 is movably pin-connected to the turntable 20, and the other end is movably connected to the push-pull rod 26 through the movable shaft 22, the turntable 20 can drive one end of the connecting rod 21 to make a circular motion, and the other end pulls the push-pull rod 26 to move back and forth through the movable shaft 22. The push-pull rod 26 can push the piston 28 to move back and forth inside the exhaust pipe 5. When the piston 28 moves to the right, the limit ring 27 blocks the flap 2 4 rotates, at this time, the flap 24 closes the notch 29, and the piston 28 moves rightward inside the exhaust pipe 5, and the gas inside the drainage device body 1 is pumped out through the ventilation pipe 3. The gas can be filtered through a plurality of fixed mesh plates 42 inside the inner cylinder 41, and the gas on the right side of the piston 28 is discharged through the exhaust hole 6. When the piston 28 moves to the left, the flap 24 rotates around the fixed axis and compresses the connecting spring 25. Due to the meshing of the two movable gears 23, the two flaps 24 are opened synchronously. At this time, the notch 29 conducts the exhaust pipe 5, reducing the resistance of the piston 28 to move, and the inside of the drainage device body 1 can be repeatedly pumped and pressed, and the accumulated fluid can flow into the inside of the drainage device body 1 through the drainage pipe 7 and the drain pipe 2.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drainage device, characterized in that: The device comprises a drainage device body (1) and a drainage tank cover (8) covering the drainage device body (1), wherein a movable shaft (4) is provided on the right side of the drainage tank cover (8) and a locking mechanism is provided on the left side; A drainage pipe (2) and a ventilation pipe (3) are provided inside the drainage tank cover (8); a mounting mechanism is provided outside the drainage pipe (2); and a filter cartridge (40) is connected to the bottom of the ventilation pipe (3); The top of the liquid discharge pipe (2) is connected to a drainage pipe (7), one end of the ventilation pipe (3) is connected to an exhaust pipe (5), an exhaust hole (6) is provided at the top of the exhaust pipe (5), a piston (28) is provided inside the exhaust pipe (5), two notches (29) are provided inside the piston (28), a push-pull rod (26) is connected to the right side of the piston (28), a turntable (20) is provided on the right side of the exhaust pipe (5), a connecting rod (21) is provided above the turntable (20), and a movable shaft (22) is connected between the connecting rod (21) and the push-pull rod (26).

2. A drainage device according to claim 1, characterized in that: The bottom of the drainage tank cover (8) is connected to an inner ring seat (9), the outer wall of the inner ring seat (9) is sleeved with a sealing ring (10), and the sealing ring (10) is in contact with the drainage device body (1).

3. A drainage device according to claim 1, characterized in that: The locking mechanism comprises a fixing plate (18) connected to the drainage can cover (8), a movable cavity (13) is provided inside the fixing plate (18), an "L-shaped" locking plug (12) is provided inside the movable cavity (13), a movable screw rod (14) is passed through the locking plug (12), an input end of the movable screw rod (14) is connected to a second bevel gear (17), a first bevel gear (16) is provided on the left side of the second bevel gear (17), and an input end of the first bevel gear (16) is connected to a handle (15); The handle (15) is meshed with a movable screw rod (14) through a first bevel gear (16) and a second bevel gear (17), and the movable screw rod (14) passes through the interior of the locking plug block (12); A locking groove (11) is provided on the left side of the outer wall of the drainage device body (1), and the locking groove (11) is partially adapted to the right end of the locking plug block (12).

4. A drainage device according to claim 1, characterized in that: One end of the connecting rod (21) is movably pin-connected to the rotating disk (20), and the other end is movably connected to the push-pull rod (26) through a movable shaft (22), and the push-pull rod (26) is fixedly connected to the piston (28).

5. A drainage device according to claim 1, characterized in that: A flap (24) is provided on both sides of the piston (28), one end of the flap (24) is connected to a movable gear (23), the two movable gears (23) are meshed, a fixed shaft is passed through the interior of the movable gear (23), the movable gear (23) is fixedly connected to the flap (24), and is movably connected to the piston (28) via the fixed shaft, and the inner wall of the piston (28) is connected to a limit ring (27).

6. A drainage device according to claim 5, characterized in that: A connecting spring (25) is connected between the flap (24) and the piston (28), and the flap (24) and the piston (28) are elastically connected via the connecting spring (25).

7. A drainage device according to claim 1, characterized in that: The mounting mechanism comprises a connecting column (30) threadedly matched with the drainage can cover (8), a sealing air ring (33) is arranged at the bottom of the connecting column (30), the sealing air ring (33) is connected to a hose (31), and the hose (31) is connected to a latex ball (32); The latex ball (32) is connected to the sealing air ring (33) via a hose (31).

8. A drainage device according to claim 7, characterized in that: Clamping plates (34) are provided on both sides of the interior of the connecting column (30), and rubber pads (35) are bonded to the surfaces of the clamping plates (34); The inner wall of the connecting column (30) is provided with a guide groove (36), and two internal thread blocks (37) are inserted into the guide groove (36). The internal thread blocks (37) are fixedly connected to the clamping plate (34), and a bidirectional screw rod (38) is inserted into the two internal thread blocks (37). The input end of the bidirectional screw rod (38) is connected to a rotating handle (39).

9. A drainage device according to claim 1, characterized in that: An inner cylinder (41) is provided at the bottom of the filter cylinder (40), and a plurality of fixed mesh plates (42) are connected to the interior of the inner cylinder (41); A partition plate (46) is fixed to the top of the filter cartridge (40), and a plurality of filter holes (47) are formed inside the partition plate (46).

10. A drainage device according to claim 1, characterized in that: A mounting screw rod (43) is provided on the right side of the bottom of the filter cartridge (40), and two ends of the mounting screw rod (43) are respectively connected to a mounting plate (44) and a mounting handle (45).

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