Tank liquid cleaning device convenient to overhaul

Abstract

The utility model discloses a bath solution cleaning device convenient to overhaul, which belongs to the technical field of bath solution cleaning and comprises a power component. The cover plate assembly is mounted on the power assembly and is used for sealing the top of the separated liquid pumping assembly; the air extraction end of the power assembly is detachably connected with the air outlet end of the separated liquid extraction assembly; the separated liquid pumping assembly is in locking connection with the power assembly through the connecting and locking assembly; the separated liquid extraction assembly comprises an elastic locking assembly, a filter cartridge, a box body and a push-pull assembly; the box body is rotationally mounted on the push-pull assembly and is locked and connected with the push-pull assembly through the elastic locking assembly, the upper end of the filter cartridge is connected with the cover plate assembly, and the front end and the rear end of the rack are locked and connected with the front end and the rear end of the power assembly through the connecting locking assembly. When dregs in the filter cartridge are cleaned, the cover plate assembly can be kept connected to the power assembly after being separated from the filter cartridge, the cover plate assembly does not need to be found to be placed, the filter cartridge does not need to be taken out, and more labor is saved in dumping; and meanwhile, the filter cartridge and the box body after the filter cartridge is taken down can be conveniently overhauled.

Description

Technical Field

[0001] The utility model relates to the technical field of tank liquid cleaning, in particular to a tank liquid cleaning device which is easy to repair. Background Art

[0002] The tank liquid cleaning device is used to remove sludge, slag and other powder impurities at the bottom of the liquid tank, which can greatly reduce the tank cleaning time, reduce labor costs and improve work efficiency.

[0003] For example, utility model patent CN211724881U discloses a tank liquid cleaning machine. When in use, the vacuum generator is started to generate negative pressure in the water tank. The tank liquid in the tank body reaches the filter barrel from the liquid inlet pipe, and then reaches the inside of the water tank after being filtered by the filter barrel. At the same time, the pneumatic diaphragm pump is started to extract the tank liquid filtered by the filter barrel from the liquid outlet and discharge it into the tank body through the liquid outlet pipe, thereby realizing the filtration of the tank liquid in the utility model and completing the cleaning. After using it for a period of time, the filter barrel cover is removed, and the filter barrel is taken out for cleaning.

[0004] However, the above structure has the following problems: when cleaning the residue in the filter barrel, the filter barrel cover needs to be removed from the filter barrel first, the separate filter barrel cover is not easy to place, and the filter barrel needs to be taken out, which is laborious to dump.

[0005] Based on this, the utility model designs a tank liquid cleaning device which is easy to maintain to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides a tank liquid cleaning device which is easy to maintain.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A tank liquid cleaning device that is easy to maintain, comprising a power component;

[0009] Also included is a cover plate assembly mounted on the power assembly and used to seal the top of the separate liquid pumping assembly;

[0010] The air extraction end of the power assembly is detachably connected to the air outlet end of the separate liquid extraction assembly;

[0011] The separate liquid pumping assembly is locked and connected to the power assembly via a connection and locking assembly;

[0012] The separate liquid extraction assembly includes an elastic locking assembly, a filter cartridge, a box body and a push-pull assembly; the box body is rotatably mounted on the push-pull assembly and the box body and the push-pull assembly are locked and connected via the elastic locking assembly, the filter cartridge is fixedly mounted inside the box body, the upper end of the filter cartridge is connected to the cover assembly, and the front and rear ends of the frame are locked and connected to the front and rear ends of the power assembly via the connecting locking assembly.

[0013] Furthermore, the air extraction end of the power component is fixedly connected to the air extraction pipe, the air outlet end of the separate liquid extraction component is fixedly connected to the second connecting pipe, and the air extraction pipe and the second connecting pipe are plugged together to achieve a detachable connection.

[0014] Furthermore, the push-pull assembly includes a grip rod, a second cross plate, a frame, universal wheels and a cross axis; the front and rear ends of the frame are fixedly connected to the second cross plate, the front and rear ends of the box are rotatably connected to the second cross plate through the cross axis, the four corners of the bottom of the frame are fixedly connected to universal wheels, and the right sides of the front and rear ends of the frame are fixedly connected to grip rods.

[0015] Furthermore, the elastic locking assembly includes a fixed cylinder, an insertion rod, a straight cylinder, a connecting plate, a first spring, a straight groove and a sliding rod; the fixed cylinder is fixedly connected to the frame, the lower end of the insertion rod is movably inserted in the fixed cylinder, the upper end of the insertion rod is movably inserted in the straight cylinder, the sliding rod is fixedly connected to the side wall of the insertion rod, a straight groove cooperating with the vertical limited sliding of the sliding rod is provided on the side wall of the straight cylinder, the interior of the straight cylinder is connected to the first spring, the upper and lower ends of the first spring are respectively fixedly connected to the top of the straight cylinder and the top of the insertion rod, the upper end of the straight cylinder is fixedly connected to the connecting plate, and the connecting plate is fixedly connected to the side wall of the box.

[0016] Furthermore, the cover plate assembly includes a first horizontal plate, a turntable, a threaded rod, a cover plate and a first pipe; one end of the first horizontal plate is fixedly connected to the power assembly, the other end of the first horizontal plate is threadedly connected to the threaded rod, the top of the threaded rod is fixedly connected to the turntable, the bottom of the threaded rod is fixedly connected to the cover plate, the cover plate is fixedly connected with the first pipe, and the cover plate is threadedly connected to the top of the filter cartridge.

[0017] Furthermore, the connection locking assembly includes a push-to-unlock assembly and a sliding plug assembly, the frame is movably connected to the power assembly through the sliding plug assembly, one end of the push-to-unlock assembly is connected to the upper end of the frame, and the other end of the push-to-unlock assembly is connected to the sliding plug assembly.

[0018] Furthermore, the push-to-unlock assembly includes a side support seat, a pull plate, a sleeve, a steel rope, a second spring, a convex groove, a U-shaped plate and a groove; the side support seat is fixedly connected to the upper outer wall of the frame, the upper end of the sleeve is fixedly connected and communicated with the bottom of the side support seat, the lower end of the sleeve is connected to the sliding plug-in assembly, a convex groove is opened inside the sliding plug-in assembly, the steel rope passes through the inside of the sleeve, the upper end of the steel rope passes through the side support seat and is fixedly connected to the pull plate, the lower end of the steel rope is fixedly connected to the U-shaped plate, the U-shaped plate is embedded in the groove opened on the sliding plug-in assembly, a second spring is installed on the steel rope and located in the convex groove, and the second spring is located between the top of the convex groove and the top of the U-shaped plate.

[0019] Furthermore, the sliding plug-in assembly includes a convex plate, a transverse movable plate and an oblique groove; one end of the transverse movable plate is fixedly connected to the power assembly, the other end of the transverse movable plate is movably plugged into the convex plate, the convex plate is fixedly mounted on the frame, the top of the other end of the transverse movable plate is provided with a groove for cooperating with the U-shaped plate, the interior of the convex plate is hollow and the upper end of the interior of the convex plate is provided with a convex groove, the U-shaped plate is slidably connected up and down in the convex groove, the lower end of the sleeve is fixedly connected to the top of the convex plate, and the upper part of the end of the transverse movable plate away from the power assembly is provided with an oblique groove for guiding.

[0020] Beneficial Effects

[0021] The utility model unlocks the connection locking component, and after unscrewing the cover plate component, the handle is held by hand to drive the frame, box body, filter cartridge, etc. to move to the residue tipping position, the elastic locking component is unlocked, and the box body is rotated to drive the filter cartridge to rotate synchronously, so that the residue in the filter cartridge can be tipped over; when the utility model cleans the residue in the filter cartridge, the cover plate component can remain connected to the power component after being separated from the filter cartridge, and there is no need to find a position to place the cover plate component, and the filter cartridge does not need to be taken out, so tipping is more labor-saving; at the same time, it is convenient to inspect and repair the filter cartridge and the box body after the filter cartridge is removed.

[0022] When the utility model is unlocked, the slide bar is pulled upwards, the slide bar moves upwards along the straight groove, the slide bar drives the insertion rod to move upwards, the insertion rod is separated from the fixed tube, and the rotation of the box body is no longer blocked; when locking, the slide bar is pulled upwards, the box body is rotated back to the frame, the slide bar is released, and under the action of the elastic restoring force of the first spring, the insertion rod is reinserted into the fixed tube to achieve locking, thereby preventing the box body from rotating and ensuring the stability of the structure.

[0023] When the utility model pulls the pull plate, the pull plate drives the steel rope to move upward, the second spring is compressed, and the steel rope drives the U-shaped plate to separate from the groove, so as to realize unlocking of the sliding plug assembly; when locking, the pull plate is pulled, and then the power assembly is connected with the separate pumping assembly, that is, the sliding plug assembly is connected, and the pull plate is released. Under the elastic restoring force of the second spring, the U-shaped plate is driven to move downward into the groove, and the U-shaped plate is driven by the steel rope to move the pull plate downward to reset. When the power assembly is connected with the separate pumping assembly, the connection between the horizontal movable plate and the convex plate can be guided through the inclined groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1A three-dimensional tank liquid cleaning device that is easy to repair is provided in the utility model. Figure 1 ;

[0026] Figure 2 This is a front view of a tank liquid cleaning device that is easy to repair according to the utility model;

[0027] Figure 3 It is a left view of a tank liquid cleaning device that is easy to repair according to the utility model;

[0028] Figure 4 A three-dimensional tank liquid cleaning device that is easy to repair is provided in the utility model. Figure 2 ;

[0029] Figure 5 For along Figure 3 AA direction cross-sectional view;

[0030] Figure 6 For along Figure 3 BB direction cross-sectional view;

[0031] Figure 7 for Figure 5 Enlarged view of point C in the middle;

[0032] Figure 8 for Figure 6 Enlarged view of point D in the middle.

[0033] The numbers in the figure represent:

[0034] 1. Power assembly; 2. Cover assembly; 21. First horizontal plate; 22. Turntable; 23. Threaded rod; 24. Cover; 25. First pipeline; 3. Separate liquid extraction assembly; 31. Grip; 32. Second horizontal plate; 33. Frame; 34. Universal wheel; 35. Box; 36. Fixed cylinder; 37. Horizontal axis; 38. Filter cartridge; 39. Insert rod; 310. Straight cylinder; 311. Connecting plate; 312. First spring; 313. Straight groove; 314. Sliding rod; 4. Connecting and locking assembly; 41. Side support seat; 42. Pull plate; 43. Convex plate; 44. Horizontal movable plate; 45. Sleeve; 46. Steel rope; 47. Second spring; 48. Convex groove; 49. U-shaped plate; 410. Groove; 411. Inclined groove; 5. Exhaust pipe; 6. Second connecting pipe. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] The utility model is further described below in conjunction with embodiments.

[0037] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0038] In some embodiments, please refer to the attached instructions. Figure 1-8 , a tank liquid cleaning device that is easy to maintain, including a power component 1;

[0039] The power assembly 1 adopts a vacuum generator;

[0040] It also includes a cover plate assembly 2 installed on the power assembly 1 and used for sealing the top of the separate liquid pumping assembly 3;

[0041] The air extraction end of the power assembly 1 is detachably connected to the air outlet end of the separate liquid extraction assembly 3;

[0042] Preferably, the air extraction end of the power assembly 1 is fixedly connected to the air extraction pipe 5, the air outlet end of the separate liquid extraction assembly 3 is fixedly connected to the second connecting pipe 6, and the air extraction pipe 5 and the second connecting pipe 6 are plugged and matched to achieve a detachable connection;

[0043] The separate liquid pumping assembly 3 is locked and connected to the power assembly 1 via a connection locking assembly 4;

[0044] The separate liquid extraction assembly 3 includes an elastic locking assembly, a filter cartridge 38, a box 35 and a push-pull assembly; the box 35 is rotatably mounted on the push-pull assembly and the box 35 and the push-pull assembly are locked and connected via the elastic locking assembly, the filter cartridge 38 is fixedly mounted inside the box 35, the upper end of the filter cartridge 38 is connected to the cover assembly 2, and the front and rear ends of the frame 33 are locked and connected to the front and rear ends of the power assembly 1 via the connection locking assembly 4;

[0045] The gas outlet end of the box body 35 is fixedly connected to the second connecting pipe 6;

[0046] The push-pull assembly includes a grip 31, a second transverse plate 32, a frame 33, a universal wheel 34 and a transverse shaft 37; the front and rear ends of the frame 33 are fixedly connected to the second transverse plate 32, the front and rear ends of the box 35 are rotatably connected to the second transverse plate 32 through the transverse shaft 37, the four corners of the bottom of the frame 33 are fixedly connected to the universal wheel 34, and the right sides of the front and rear ends of the frame 33 are fixedly connected to the grip 31;

[0047] Unlock the connection locking assembly 4, unscrew the cover assembly 2, hold the handle 31 to drive the frame 33, the box 35, the filter cartridge 38, etc. to move to the position of overturning the residue, unlock the elastic locking assembly, rotate the box 35 to drive the filter cartridge 38 to rotate synchronously, and then overturn the residue in the filter cartridge 38;

[0048] When cleaning the residue in the filter cartridge 38, the cover plate assembly 2 can remain connected to the power assembly 1 after being separated from the filter cartridge 38, and there is no need to find a place to place the cover plate assembly 2, and the filter cartridge 38 does not need to be taken out, so dumping is more labor-saving; at the same time, it is convenient to inspect the filter cartridge 38 and the box body 35 after the filter cartridge 38 is removed;

[0049] The elastic locking assembly includes a fixed cylinder 36, an insertion rod 39, a straight cylinder 310, a connecting plate 311, a first spring 312, a straight groove 313 and a sliding rod 314; the fixed cylinder 36 is fixedly connected to the frame 33, the lower end of the insertion rod 39 is movably inserted into the fixed cylinder 36, the upper end of the insertion rod 39 is movably inserted into the straight cylinder 310, the side wall of the insertion rod 39 is fixedly connected with the sliding rod 314, the side wall of the straight cylinder 310 is provided with a straight groove 313 for vertical limited sliding of the sliding rod 314, the interior of the straight cylinder 310 is connected with the first spring 312, the upper and lower ends of the first spring 312 are respectively fixedly connected to the top of the straight cylinder 310 and the top of the insertion rod 39, the upper end of the straight cylinder 310 is fixedly connected to the connecting plate 311, and the connecting plate 311 is fixedly connected to the side wall of the box body 35;

[0050] The filter cartridge 38 is threadedly fixedly installed inside the box body 35;

[0051] When unlocking, the slide bar 314 is pulled upward, and the slide bar 314 moves upward along the straight groove 313, and the slide bar 314 drives the insertion rod 39 to move upward, and the insertion rod 39 is separated from the fixing tube 36, and the rotation of the box body 35 is no longer prevented;

[0052] When locking, pull the slide bar 314 upwards, the box body 35 rotates back to the frame 33, release the slide bar 314, and under the elastic restoring force of the first spring 312, the insertion rod 39 is reinserted into the fixed tube 36 to achieve locking, thereby preventing the box body 35 from rotating and ensuring the stability of the structure.

[0053] The cover plate assembly 2 includes a first transverse plate 21, a rotating disk 22, a threaded rod 23, a cover plate 24 and a first pipe 25; one end of the first transverse plate 21 is fixedly connected to the housing of the power assembly 1, the other end of the first transverse plate 21 is threadedly connected to the threaded rod 23, the top of the threaded rod 23 is fixedly connected to the rotating disk 22, the bottom of the threaded rod 23 is fixedly connected to the cover plate 24, the cover plate 24 is fixedly connected with the first pipe 25, and the cover plate 24 is threadedly connected to the top of the filter cartridge 38;

[0054] The power assembly 1 draws air into the box 35 through the air extraction pipe 5 and the second connecting pipe 6, and then is filtered by the filter cartridge 38 and sucked by the first pipe 25;

[0055] The rotating disk 22 drives the threaded rod 23 to rotate and move upward, and the threaded rod 23 drives the cover plate 24 to rotate and move upward, and the cover plate 24 is separated from the filter cartridge 38;

[0056] The connection locking assembly 4 includes a push-unlock assembly and a sliding plug assembly. The frame 33 is movably connected to the power assembly 1 through the sliding plug assembly. One end of the push-unlock assembly is connected to the upper end of the frame 33, and the other end of the push-unlock assembly is connected to the sliding plug assembly.

[0057] The push-to-unlock assembly includes a side support seat 41, a pull plate 42, a sleeve 45, a steel rope 46, a second spring 47, a convex groove 48, a U-shaped plate 49 and a groove 410; the side support seat 41 is fixedly connected to the upper outer wall of the frame 33, the upper end of the sleeve 45 is fixedly connected and communicated with the bottom of the side support seat 41, the lower end of the sleeve 45 is connected to the sliding plug assembly, a convex groove 48 is provided inside the sliding plug assembly, the steel rope 46 passes through the sleeve 45, the upper end of the steel rope 46 passes through the side support seat 41 and is fixedly connected to the pull plate 42, the lower end of the steel rope 46 is fixedly connected to the U-shaped plate 49, the U-shaped plate 49 is embedded in the groove 410 provided on the sliding plug assembly, a second spring 47 is installed on the steel rope 46 and located in the convex groove 48, and the second spring 47 is located between the top of the convex groove 48 and the top of the U-shaped plate 49;

[0058] When the pull plate 42 is pulled, the pull plate 42 drives the steel rope 46 to move upward, the second spring 47 is compressed, and the steel rope 46 drives the U-shaped plate 49 to separate from the groove 410, thereby unlocking the sliding plug assembly;

[0059] When locking, pull the pull plate 42, and then connect the power component 1 with the separate liquid extraction component 3, that is, connect the sliding plug-in component, release the pull plate 42, and under the elastic restoring force of the second spring 47, drive the U-shaped plate 49 to move downward into the groove 410, and the U-shaped plate 49 drives the pull plate 42 to move downward and reset through the steel rope 46.

[0060] In some embodiments, please refer to the attached instructions. Figure 7The sliding plug-in assembly includes a convex plate 43, a transverse movable plate 44 and an inclined groove 411; one end of the transverse movable plate 44 is fixedly connected to the housing of the power assembly 1, and the other end of the transverse movable plate 44 is movably plugged with the convex plate 43. The convex plate 43 is fixedly installed on the frame 33. The top of the other end of the transverse movable plate 44 is provided with a groove 410 for plugging with the U-shaped plate 49. The convex plate 43 is hollow inside and a convex groove 48 is provided at the upper end of the convex plate 43. The U-shaped plate 49 is slidably connected in the convex groove 48 up and down. The lower end of the sleeve 45 is fixedly connected to the top of the convex plate 43. The upper part of the end of the transverse movable plate 44 away from the power assembly 1 is provided with an inclined groove 411 for guiding.

[0061] When the power assembly 1 is connected to the separate liquid pumping assembly 3 , the connection between the horizontal movable plate 44 and the convex plate 43 can be guided through the inclined groove 411 .

[0062] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A tank liquid cleaning device that is easy to maintain, comprising a power assembly (1), characterized in that: It also includes a cover plate assembly (2) mounted on the power assembly (1) and used to seal the top of the separate liquid extraction assembly (3); The air extraction end of the power component (1) is detachably connected to the air outlet end of the separate liquid extraction component (3); The separate liquid extraction component (3) is locked and connected to the power component (1) via a connection locking component (4); The separate liquid extraction assembly (3) comprises an elastic locking assembly, a filter cartridge (38), a box (35) and a push-pull assembly; the box (35) is rotatably mounted on the push-pull assembly and the box (35) and the push-pull assembly are locked and connected via the elastic locking assembly; the filter cartridge (38) is fixedly mounted inside the box (35); the upper end of the filter cartridge (38) is connected to the cover assembly (2); and the front and rear ends of the frame (33) are locked and connected to the front and rear ends of the power assembly (1) via the connection locking assembly (4).

2. The tank liquid cleaning device that is easy to maintain according to claim 1 is characterized in that: The air extraction end of the power component (1) is fixedly connected to the air extraction pipe (5), the air outlet end of the separate liquid extraction component (3) is fixedly connected to the second connecting pipe (6), and the air extraction pipe (5) and the second connecting pipe (6) are plugged together to achieve a detachable connection.

3. The tank liquid cleaning device that is easy to maintain according to claim 2 is characterized in that: The push-pull assembly comprises a gripping rod (31), a second transverse plate (32), a frame (33), a universal wheel (34) and a transverse shaft (37); the front and rear ends of the frame (33) are fixedly connected to the second transverse plate (32); the front and rear ends of the box (35) are rotatably connected to the second transverse plate (32) via the transverse shaft (37); the four corners at the bottom of the frame (33) are fixedly connected to the universal wheels (34); and the right sides of the front and rear ends of the frame (33) are fixedly connected to the gripping rod (31).

4. The tank liquid cleaning device that is easy to maintain according to claim 3 is characterized in that: The elastic locking assembly comprises a fixed cylinder (36), an insertion rod (39), a straight cylinder (310), a connecting plate (311), a first spring (312), a straight groove (313) and a sliding rod (314); the fixed cylinder (36) is fixedly connected to the frame (33), the lower end of the insertion rod (39) is movably inserted into the fixed cylinder (36), the upper end of the insertion rod (39) is movably inserted into the straight cylinder (310), and the side wall of the insertion rod (39) is fixedly connected to the sliding rod. (314), a straight groove (313) is provided on the side wall of the straight cylinder (310) to cooperate with the slide rod (314) for vertical limited sliding, a first spring (312) is connected to the inside of the straight cylinder (310), the upper and lower ends of the first spring (312) are respectively fixedly connected to the top of the straight cylinder (310) and the top of the insertion rod (39), the upper end of the straight cylinder (310) is fixedly connected to the connecting plate (311), and the connecting plate (311) is fixedly connected to the side wall of the box body (35).

5. The tank liquid cleaning device that is easy to maintain according to claim 4 is characterized in that: The cover plate assembly (2) comprises a first transverse plate (21), a rotating disk (22), a threaded rod (23), a cover plate (24) and a first pipe (25); one end of the first transverse plate (21) is fixedly connected to the power assembly (1), the other end of the first transverse plate (21) is threadedly connected to the threaded rod (23), the top of the threaded rod (23) is fixedly connected to the rotating disk (22), the bottom of the threaded rod (23) is fixedly connected to the cover plate (24), the first pipe (25) is fixedly connected to the cover plate (24), and the cover plate (24) is threadedly connected to the top of the filter cartridge (38).

6. The tank liquid cleaning device that is easy to maintain according to claim 5 is characterized in that: The connection locking assembly (4) comprises a push-to-unlock assembly and a sliding plug assembly. The frame (33) is movably connected to the power assembly (1) via the sliding plug assembly. One end of the push-to-unlock assembly is connected to the upper end of the frame (33), and the other end of the push-to-unlock assembly is connected to the sliding plug assembly.

7. The tank liquid cleaning device that is easy to maintain according to claim 6 is characterized in that: The push-to-unlock assembly comprises a side support seat (41), a pull plate (42), a sleeve (45), a steel rope (46), a second spring (47), a convex groove (48), a U-shaped plate (49) and a groove (410); the side support seat (41) is fixedly connected to the upper outer wall of the frame (33), the upper end of the sleeve (45) is fixedly connected to and communicated with the bottom of the side support seat (41), the lower end of the sleeve (45) is connected to the sliding plug assembly, and a convex groove (48) is provided inside the sliding plug assembly. The steel rope (46) passes through the inside of the sleeve (45), and the upper end of the steel rope (46) passes through the side support seat (41) and is fixedly connected to the pull plate (42). The lower end of the steel rope (46) is fixedly connected to the U-shaped plate (49). The U-shaped plate (49) is embedded in a groove (410) provided on the sliding plug assembly. A second spring (47) is installed on the steel rope (46) and located in the convex groove (48). The second spring (47) is located between the top of the convex groove (48) and the top of the U-shaped plate (49).

8. The tank liquid cleaning device that is easy to maintain according to claim 7 is characterized in that: The sliding plug-in assembly comprises a convex plate (43), a transverse movable plate (44) and an inclined groove (411); one end of the transverse movable plate (44) is fixedly connected to the power assembly (1), and the other end of the transverse movable plate (44) is movably plugged with the convex plate (43); the convex plate (43) is fixedly mounted on the frame (33); a groove (410) for plugging with the U-shaped plate (49) is provided at the top of the other end of the transverse movable plate (44); the convex plate (43) is hollow inside and a convex groove (48) is provided at the upper end of the convex plate (43); the U-shaped plate (49) is slidably connected in the convex groove (48) up and down; the lower end of the sleeve (45) is fixedly connected to the top of the convex plate (43); and an inclined groove (411) for guiding is provided at the upper part of one end of the transverse movable plate (44) away from the power assembly (1).

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