A sewage lift pump convenient for cleaning

Abstract

The present invention relates to the technical field of sewage lift pumps, and discloses a sewage lift pump that is convenient for cleaning, including an outer housing. A rotating shaft is installed inside the outer housing, and a blade is installed at one end of the rotating shaft. A cleaning unit is arranged inside the outer housing, and the cleaning unit includes a folding mechanism and a scraper. The folding mechanism includes a first folding rod and a second folding rod; a driving unit is also arranged inside the outer housing, and the driving unit includes a matching mechanism. The matching mechanism includes a connecting column and a connecting head. An adaptor slot is provided at one end of the connecting column, and an adaptor head is fixedly installed at one end of the connecting head. The present invention cleans the inner wall of the sewage lift pump by arranging a cleaning unit, and reduces the influence of the volume of the cleaning unit itself on the sewage lift pump when not in use; the present invention drives the rotating shaft through the driving unit to make the cleaning unit work, and a driving torsion spring is arranged for buffering to achieve flexible transmission of the cleaning unit.

Description

Technical Field

[0001] The present invention belongs to the technical field of sewage lift pumps, and more specifically, relates to a sewage lift pump that is convenient for cleaning. Background Art

[0002] Sewage treatment is a process of purifying sewage to meet the water quality requirements for discharging into a certain water body or for reuse. Sewage treatment is widely applied in various fields such as construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, and catering, and is also increasingly entering the daily lives of ordinary people. The role of a sewage treatment station is to treat production and domestic sewage to meet the specified discharge standards, and it is an important facility for environmental protection.

[0003] A Chinese patent with the authorization announcement number CN214574560U discloses a lifting device for a sewage lift pump, including a sewage collection tank: a rectangular sewage trough is opened at the top of the sewage collection tank, a sewage discharge pipe is connected to the right side of the sewage collection tank, a support mechanism is arranged at the top of the sewage collection tank, and an interception mechanism is arranged in the inner cavity of the sewage trough. During use, sewage is discharged into the inner cavity of the sewage trough through the sewage discharge pipe, and the sewage shredding box intercepts impurities in the sewage. The first motor is started, and finally drives the impurity cutting blade to rotate. The impurity cutting blade cuts the impurities intercepted by the sewage shredding box, so that the impurities can finally pass through the filter holes of the sewage shredding box to meet the lifting requirements, that is, the purpose of preventing blockage is achieved. This lifting device for a sewage lift pump has the advantage of preventing blockage. During the lifting process of sewage, larger impurities can be cut to meet the lifting requirements, avoiding blockage of the pipeline by impurities, and thus improving the efficiency of sewage lifting.

[0004] However, this technical solution still has at least the following defects: The impurity cutting blade in this solution cannot cut viscous dirt, such as sludge, and during the transportation process, sludge will adhere to the inner wall of the sewage lift pump, and the above technical solution cannot achieve the cleaning of the inside of the sewage lift pump. In view of this, the present invention is specifically proposed. Summary of the Invention

[0005] The technical solution adopted by the present invention to solve its technical problems is:

[0006] A sewage lift pump that is convenient for cleaning, including an outer shell. A rotating shaft is installed inside the outer shell, a blade is installed at one end of the rotating shaft, and a cleaning unit is arranged inside the outer shell. The cleaning unit includes a folding mechanism and a scraping plate. The folding mechanism includes a first folding rod and a second folding rod, and the first folding rod and the second folding rod are rotatably connected. The second folding rod and the scraping plate are rotatably connected. The folding mechanism is used for folding and contracting the scraping plate;

[0007] A driving unit is further provided inside the outer casing. The driving unit includes a matching mechanism. The matching mechanism includes a connecting column and a connecting head. An adaptation slot is provided at one end of the connecting column, and an adaptation head is fixedly installed at one end of the connecting head. The driving unit drives the cleaning unit to work through the mutual cooperation of the adaptation slot and the adaptation head.

[0008] As a preferred embodiment of the present invention, the cleaning unit further includes a mounting shell. The mounting shell is movably sleeved on the rotating shaft. Mounting frames are installed on both sides of the mounting shell. The first folding rod is rotatably connected to the mounting frame. A supporting mechanism is provided between the first folding rod and the second folding rod. The supporting mechanism is used to maintain the horizontal state of the second folding rod when the first folding rod is in a horizontal state.

[0009] As a preferred embodiment of the present invention, the supporting mechanism includes a side block and a pushing block. The side block is fixedly connected to the second folding rod. A sliding block is fixedly installed at one end of the pushing block. A sliding rod is fixedly installed at the bottom of the first folding rod. The sliding block is movably sleeved on the sliding rod. The supporting mechanism supports the second folding rod through the side block and the pushing block.

[0010] As a preferred embodiment of the present invention, the cleaning unit further includes a limiting mechanism. The limiting mechanism includes a fixing plate. The fixing plate is fixedly connected to the mounting frame. A rotating plate is rotatably connected to one end of the fixing plate. A connecting plate is rotatably installed at one end of the rotating plate. Both ends of the connecting plate are rotatably connected to the sliding block. When the connecting plate follows the movement of the rotating plate, it drives the sliding block to move.

[0011] As a preferred embodiment of the present invention, the driving unit further includes a buffering mechanism. The buffering mechanism includes a driving torsion spring. The driving torsion spring is movably sleeved on the rotating shaft. A connecting disk is installed at one end of the driving torsion spring. One end of the connecting disk is fixedly connected to the mounting shell. The other end of the driving torsion spring is fixedly connected to the connecting column. The connecting column is movably connected inside the mounting shell.

[0012] As a preferred embodiment of the present invention, the driving unit further includes a pressure mechanism. The pressure mechanism includes a connecting rod. The connecting rod is rotatably connected to the rotating shaft. A counterweight is fixedly installed at the top of the connecting rod. One end of the connecting rod is rotatably connected to a pressing plate. The bottom of the pressing plate is rotatably connected to the connecting head. The pressure mechanism drives the connecting head to move downward through the centrifugal force generated by the rotation of the counterweight.

[0013] As a preferred embodiment of the present invention, the pressure mechanism further includes a reset component. The reset component includes a spring. The spring is movably sleeved on the rotating shaft. A first support ring is fixedly installed at the top of the spring. The first support ring is located at the bottom of the connecting rod. The reset component further includes a second support ring. The second support ring is movably sleeved outside the connecting head. A support block is fixedly installed at the top of the second support ring. One end of the support block is provided with a positioning rod. The positioning rod is movably inserted into the connecting head. A connecting ring is fixedly installed at the top of the connecting column. The connecting ring is movably inserted into the connecting head.

[0014] As a preferred embodiment of the present invention, the driving unit further includes a lifting mechanism. The lifting mechanism includes a mounting seat. The mounting seat is fixedly installed at the top of the outer housing. The rotating shaft movably passes through the mounting seat. A pushing component is installed on the mounting seat. The pushing component includes an electric cylinder. A connecting component is provided at the output end of the electric cylinder. A pull rod is provided at the bottom of the connecting component.

[0015] As a preferred embodiment of the present invention, the connecting component includes a lower turntable and an upper turntable. The lower turntable and the upper turntable are rotatably connected. The bottom of the lower turntable is fixedly connected to the pull rod. The upper turntable is fixedly connected to the output end of the electric cylinder. A slot is opened on the upper turntable. A plug is fixedly installed at the bottom of the mounting seat. The slot and the plug are adapted to each other. The sides of the lower turntable and the plug close to each other are both subjected to frosted treatment.

[0016] As a preferred embodiment of the present invention, a connecting piece is fixedly installed at the bottom of the pull rod. A roller is rotatably installed on one side of the connecting piece. The roller is located at the bottom of the second support ring. A pull plate is rotatably installed at the bottom of the connecting piece. A chute is opened on the first folding rod. One end of the pull plate is slidably connected to the chute through a connecting shaft.

[0017] The present invention has the following beneficial effects compared with the prior art:

[0018] The present invention cleans the inner wall of the sewage lift pump by setting a cleaning unit, and controls the first folding rod and the second folding rod to fold and contract when not in use, reducing the influence of the volume of the cleaning unit itself on the sewage lift pump;

[0019] The present invention drives the rotating shaft through the driving unit to make the rotating shaft drive the cleaning unit to work, and sets a driving torsion spring for buffering. Depending on the deformation of the driving torsion spring when it is subjected to torsion, the acceleration of the rotation of the cleaning unit is reduced, realizing the flexible transmission of the cleaning unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of a sewage lift pump that is convenient to clean according to the present invention;

[0021] Figure 2 Schematic diagram of the internal structure of the outer shell of the present invention;

[0022] Figure 3 Schematic diagram of the structure at the installation shell of the present invention;

[0023] Figure 4 Schematic diagram of the structure at the first folding rod of the present invention;

[0024] Figure 5 Schematic diagram of the separated state of the slider and the sliding rod of the present invention;

[0025] Figure 6 Schematic diagram of the structure at the roller of the present invention;

[0026] Figure 7 Schematic diagram of the structure at the mounting seat of the present invention;

[0027] Figure 8 Schematic diagram of the structure at the spring of the present invention;

[0028] Figure 9 Schematic diagram of the internal structure of the installation shell of the present invention;

[0029] Figure 10 Schematic diagram of the structure at the connecting ring of the present invention;

[0030] Figure 11 Schematic diagram of the structure at the adapter head and the adapter slot of the present invention.

[0031] Explanation of reference numerals:

[0032] 100. Outer shell; 101. Rotating shaft; 102. Blade;

[0033] 200. Installation shell; 201. Installation frame; 202. First folding rod; 203. Second folding rod; 204. Scraper; 205. Side block; 206. Sliding rod; 207. Slider; 208. Pushing block; 209. Fixed plate; 210. Rotating plate; 211. Connecting plate;

[0034] 300. Connecting disc; 301. Driving torsion spring; 302. Connecting column; 303. Connecting ring; 304. Connecting head; 305. Adapter slot; 306. Adapter head;

[0035] 400. Counterweight block; 401. Connecting rod; 402. Pressing plate; 403. First support ring; 404. Spring; 405. Second support ring; 406. Support block; 407. Roller; 408. Connecting piece; 409. Pulling plate; 410. Chute; 411. Pulling rod; 412. Lower turntable; 413. Upper turntable; 414. Slot; 415. Mounting seat; 416. Insert block; 417. Electric cylinder; 418. Positioning rod. Detailed implementation manner

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments with reference to the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0037] Embodiment 1

[0038] As Figures 1 to 11 shown, a sewage lift pump that is convenient for cleaning includes a housing 100. A rotating shaft 101 is installed inside the housing 100. A blade 102 is installed at one end of the rotating shaft 101. A cleaning unit is arranged inside the housing 100. The cleaning unit includes a folding mechanism and a scraper 204. The folding mechanism includes a first folding rod 202 and a second folding rod 203, and the first folding rod 202 and the second folding rod 203 are rotatably connected. The second folding rod 203 and the scraper 204 are rotatably connected. The folding mechanism is used to fold and contract the scraper 204;

[0039] A driving unit is also arranged inside the housing 100. The driving unit includes a matching mechanism. The matching mechanism includes a connecting column 302 and a connecting head 304. An adaptation slot 305 is opened at one end of the connecting column 302. An adaptation head 306 is fixedly installed at one end of the connecting head 304. The driving unit drives the cleaning unit to work through the mutual cooperation of the adaptation slot 305 and the adaptation head 306;

[0040] Helical threads with the same rotation direction as the rotation direction of the rotating shaft 101 are opened on the side walls of both the adaptation head 306 and the adaptation slot 305. When the rotation speed of the adaptation head 306 is greater than that of the adaptation slot 305, the helical thread on the adaptation head 306 is engaged with the helical thread on the adaptation slot 305. When the rotation speed of the adaptation head 306 is less than that of the adaptation slot 305, the helical thread on the adaptation head 306 and the helical thread on the adaptation slot 305 are gradually separated.

[0041] As Figures 2 to 6As shown in the figure, in the specific implementation manner, the cleaning unit further includes an installation shell 200. The installation shell 200 is movably sleeved on the rotating shaft 101. Installation frames 201 are installed on both sides of the installation shell 200. The first folding rod 202 is rotatably connected to the installation frame 201. A support mechanism is arranged between the first folding rod 202 and the second folding rod 203. The support mechanism is used to maintain the horizontal state of the second folding rod 203 when the first folding rod 202 is in a horizontal state. The support mechanism includes a side block 205 and a push block 208. The side block 205 is fixedly connected to the second folding rod 203. A slider 207 is fixedly installed at one end of the push block 208. A sliding rod 206 is fixedly installed at the bottom of the first folding rod 202. The slider 207 is movably sleeved on the sliding rod 206. The support mechanism supports the second folding rod 203 through the side block 205 and the push block 208. In this setting, when the first folding rod 202 and the second folding rod 203 are unfolded, the connecting plate 211 moves accordingly, and under the action of the rotating plate 210, the slider 207 is pushed to move, so that the push block 208 moves to the bottom of the side block 205. At this time, the second folding rod 203 is kept in a horizontal state under the support of the push block 208 and the side block 205, preventing it from rotating downward and colliding with the blade 102.

[0042] As Figures 3 to 5 shown, further, the cleaning unit further includes a limiting mechanism. The limiting mechanism includes a fixing plate 209. The fixing plate 209 is fixedly connected to the installation frame 201. One end of the fixing plate 209 is rotatably connected to a rotating plate 210. A connecting plate 211 is rotatably installed at one end of the rotating plate 210. Both ends of the connecting plate 211 are rotatably connected to the slider 207. When the connecting plate 211 moves following the rotating plate 210, the slider 207 is driven to move. In this setting, the moving trajectory of the connecting plate 211 is the rotation route of the rotating plate 210. When the first folding rod 202 rotates, the slider 207 on the first folding rod 202 rotates accordingly. At this time, the slider 207 is pulled by the connecting plate 211 and slides along the sliding rod 206.

[0043] In this embodiment, two sets of the first folding rod 202 and the second folding rod 203 are both arranged in an up-and-down distribution and are respectively connected to the upper and lower ends of the scraping plate 204. Two sets of the rotating plate 210 are arranged in an up-and-down distribution and form a quadrilateral structure with the connecting plate 211.

[0044] Embodiment 2

[0045] As Figure 9 、 Figure 10As shown, in the specific implementation, the driving unit further includes a buffer mechanism. The buffer mechanism includes a driving torsion spring 301. The driving torsion spring 301 is movably sleeved on the rotating shaft 101. One end of the driving torsion spring 301 is provided with a connecting disk 300. One end of the connecting disk 300 is fixedly connected to the mounting shell 200. The other end of the driving torsion spring 301 is fixedly connected to a connecting column 302. The connecting column 302 is movably connected inside the mounting shell 200. In this setting, when the driving torsion spring 301 receives the rotational force from the connecting column 302, it causes itself to undergo torsional deformation. The torsional force generated by its torsional deformation then acts on the connecting disk 300, thereby realizing the flexible transmission of the cleaning unit and avoiding directly transmitting the high-speed rotation of the connecting shaft to the cleaning unit.

[0046] As Figure 6 shown, further, the driving unit further includes a pressure mechanism. The pressure mechanism includes a connecting rod 401. The connecting rod 401 is rotatably connected to the rotating shaft 101. A counterweight 400 is fixedly installed at the top of the connecting rod 401. One end of the connecting rod 401 is rotatably connected to a pressing plate 402. The bottom of the pressing plate 402 is rotatably connected to a connecting head 304. The pressure mechanism drives the connecting head 304 to move downward through the centrifugal force generated by the rotation of the counterweight 400. In this setting, the rotating shaft 101 rotates and drives the counterweight 400 to rotate. The counterweight 400 spreads outward under the action of the centrifugal force generated by the rotation, and drives the connecting rod 401 to rotate. The connecting rod 401 drives the connecting head 304 to descend through the pressing plate 402.

[0047] As Figure 6 、 Figures 8 - 10 shown, further, the pressure mechanism further includes a reset component. The reset component includes a spring 404. The spring 404 is movably sleeved on the rotating shaft 101. A first support ring 403 is fixedly installed at the top of the spring 404. The first support ring 403 is located at the bottom of the connecting rod 401. The reset component further includes a second support ring 405. The second support ring 405 is movably sleeved outside the connecting head 304. A support block 406 is fixedly installed at the top of the second support ring 405. One end of the support block 406 is provided with a positioning rod 418. The positioning rod 418 is movably inserted into the connecting head 304. A connecting ring 303 is fixedly installed at the top of the connecting column 302. The connecting ring 303 is movably inserted into the connecting head 304. In this setting, the spring 404 drives the first support ring 403 to move. The first support ring 403 drives the connecting rod 401 to rotate, thereby moving the connecting head 304 upward. During the movement of the connecting head 304, it always maintains a connection state with the connecting ring 303, effectively preventing dirt from entering the inside of the connecting head 304.

[0048] Embodiment 3

[0049] As Figure 2 、 Figures 6 to 7As shown in the figure, in the specific implementation manner, the driving unit further includes a lifting mechanism. The lifting mechanism includes a mounting base 415, which is fixedly installed on the top of the outer housing 100. The rotating shaft 101 movably penetrates through the mounting base 415. A pushing component is installed on the mounting base 415. The pushing component includes an electric cylinder 417. A connecting component is provided at the output end of the electric cylinder 417. A pull rod 411 is provided at the bottom of the connecting component. The connecting component includes a lower turntable 412 and an upper turntable 413. The lower turntable 412 and the upper turntable 413 are rotatably connected. The bottom of the lower turntable 412 is fixedly connected to the pull rod 411. The upper turntable 413 is fixedly connected to the output end of the electric cylinder 417. A slot 414 is formed on the upper turntable 413. A plug 416 is fixedly installed at the bottom of the mounting base 415. The slot 414 is adapted to the plug 416. One side of the lower turntable 412 and the plug 416 close to each other are both subjected to frosting treatment. In this setting, when the electric cylinder 417 contracts, the electric cylinder 417 drives the upper turntable 413 and the lower turntable 412 to rise, and makes the plug 416 insert into the slot 414. At this time, the plug 416 and the lower turntable 412 are mutually extruded, and the lower turntable 412 cannot rotate due to the frictional force.

[0050] As Figure 6 shown, further, a connecting piece 408 is fixedly installed at the bottom of the pull rod 411. A roller 407 is rotatably installed on one side of the connecting piece 408. The roller 407 is located at the bottom of the second support ring 405. A pull plate 409 is rotatably installed at the bottom of the connecting piece 408. A chute 410 is formed on the first folding rod 202. One end of the pull plate 409 is slidably connected to the chute 410 through a connecting shaft. In this setting, the roller 407 and the connecting piece 408 are connected by a bearing to meet the supporting effect of the roller 407 on the second support ring 405 when the second support ring 405 rotates.

[0051] The implementation principle of a sewage lift pump that is easy to clean in this embodiment is as follows: When the sewage lift pump is working normally, the electric cylinder 417 is in a contracted state. At this time, the first folding rod 202 and the second folding rod 203 are in a contracted state. At the same time, the connecting head 304 and the connecting column 302 are in a separated state, so that the scraper 204 will not rotate;

[0052] When cleaning is required, connect the sewage lift pump to a clean water source and start the electric cylinder 417. The electric cylinder 417 drives the upper turntable 413 and the lower turntable 412 to descend, and then drives the pull rod 411 to descend. At this time, the pull rod 411 drives the pull plate 409 to slide along the chute 410 through the connecting piece 408. At the same time, the connecting piece 408 drives the roller 407 to descend. At this time, the second support ring 405 descends due to the loss of the support of the roller 407;

[0053] Start the sewage lifting pump, at this time, the rotating shaft 101 rotates, and drives the counterweight block 400 to rotate. The counterweight block 400 opens outward under the centrifugal force generated by the rotation, and drives the connecting rod 401 to rotate. The connecting rod 401 drives the connecting head 304 to descend through the pressure plate 402. When the adapter groove 305 cooperates with the adapter head 306, the connecting head 304 drives the connecting column 302 to rotate. At this time, the connecting column 302 drives the driving torsion spring 301 to rotate. The torsion of the driving torsion spring 301 acts on the connecting disk 300, thereby rotating the mounting shell 200. When the mounting shell 200 rotates, it drives the first folding rod 202 and the second folding rod 203 to rotate, so that the first folding rod 202 and the second folding rod 203 are thrown away under the action of centrifugal force;

[0054] When the first folding rod 202 and the second folding rod 203 are unfolded, the connecting plate 211 moves with them and pushes the slider 207 to move under the action of the rotating plate 210, thereby moving the push block 208 to the bottom of the side block 205. At this time, the second folding rod 203 is kept in a horizontal state under the support of the push block 208 and the side block 205, so as to prevent it from rotating downward and colliding with the blade 102.

[0055] When the first folding rod 202 and the second folding rod 203 are unfolded, the scraper 204 is driven to unfold. At this time, the scraper 204 scrapes the inner wall of the outer shell 100, and the scraped dirt is washed away with the water flow;

[0056] When the cleaning is completed, the sewage lifting pump is disconnected from the clean water source, and the sewage lifting pump is shut down at this time. The rotating shaft 101 and the blades 102 are decelerated under the damping action of the sewage lifting pump itself. At the same time, the cleaning unit continues to rotate due to its own inertia, so that the rotation speed of the connecting head 304 is slower than the rotation speed of the connecting column 302, that is, the connecting head 304 rotates in the opposite direction relative to the connecting column 302. At the same time, due to the reduction in the rotation speed of the rotating shaft 101, the rotation speed of the counterweight block 400 is reduced, and the centrifugal force is reduced. At this time, the spring 404 drives the first support ring 403 to move, and the first support ring 403 drives the connecting rod 401 to rotate, so that the connecting head 304 moves up and is separated from the connecting column 302;

[0057] The electric cylinder 417 is retracted, and the electric cylinder 417 drives the upper turntable 413 and the lower turntable 412 to rise, and the insert block 416 is inserted into the slot 414. At this time, the insert block 416 and the lower turntable 412 are squeezed against each other, and the lower turntable 412 cannot rotate due to the friction force. At the same time, the lower turntable 412 drives the connecting member 408 to rise through the pull rod 411, and the connecting member 408 drives the roller 407 to rise, so that the second support ring 405 rises, and drives the support block 406 to press against the first support ring 403;

[0058] While the connecting member 408 rises, the first folding rod 202 is pulled to rotate by the pulling plate 409. During the rotation of the first folding rod 202, the slider 207 moves under the action of the rotating plate 210 and the connecting plate 211, and drives the pushing block 208 to disengage from the side block 205. At this time, the second folding rod 203 and the scraping plate 204 rotate downward under the action of gravity, thereby achieving the effect of folding and shrinking.

[0059] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A sewage lifting pump that is easy to clean, comprising an outer shell (100), a rotating shaft (101) is installed inside the outer shell (100), and a blade (102) is installed at one end of the rotating shaft (101), characterized in that: A cleaning unit is arranged inside the outer shell (100), the cleaning unit comprising a folding mechanism and a scraper (204), the folding mechanism comprising a first folding rod (202) and a second folding rod (203), the first folding rod (202) and the second folding rod (203) being rotatably connected, the second folding rod (203) and the scraper (204) being rotatably connected, the folding mechanism being used to fold and contract the scraper (204), the cleaning unit further comprising a mounting shell (200); A driving unit is also arranged inside the outer shell (100), the driving unit comprising a matching mechanism, the matching mechanism comprising a connecting column (302) and a connecting head (304), an adapting groove (305) is provided at one end of the connecting column (302), and an adapting head (306) is fixedly mounted at one end of the connecting head (304); The driving unit further comprises a pressure mechanism, the pressure mechanism comprising a connecting rod (401), the connecting rod (401) being rotatably connected to the rotating shaft (101), a counterweight (400) being fixedly mounted on the top of the connecting rod (401), a pressure plate (402) being rotatably connected to one end of the connecting rod (401), and a bottom of the pressure plate (402) being rotatably connected to a connecting head (304); The rotation of the rotating shaft (101) drives the counterweight (400) to rotate. The counterweight (400) opens outward under the action of centrifugal force and drives the connecting rod (401) to rotate. The connecting rod (401) drives the connecting head (304) to descend through the pressure plate (402). When the connecting head (304) descends to the adapting groove (305) and cooperates with the adapting head (306), the connecting head (304) drives the connecting column (302) to rotate. The rotation of the connecting column (302) can drive the installation shell (200) to rotate. The first folding rod (202) and the second folding rod (203) can be thrown apart under the action of centrifugal force.

2. The easy-to-clean sewage lifting pump according to claim 1, characterized in that: The mounting shell (200) is movably sleeved on the rotating shaft (101); mounting frames (201) are mounted on both sides of the mounting shell (200); the first folding rod (202) is rotatably connected to the mounting frame (201); a support mechanism is provided between the first folding rod (202) and the second folding rod (203); the support mechanism is used to maintain the horizontal state of the second folding rod (203) when the first folding rod (202) is in a horizontal state.

3. The easy-to-clean sewage lifting pump according to claim 2, characterized in that: The support mechanism comprises a side block (205) and a push block (208); the side block (205) is fixedly connected to the second folding rod (203); a slider (207) is fixedly mounted on one end of the push block (208); a slider (206) is fixedly mounted on the bottom of the first folding rod (202); the slider (207) is movably sleeved on the slider (206); and the support mechanism supports the second folding rod (203) through the side block (205) and the push block (208).

4. The easy-to-clean sewage lifting pump according to claim 3, characterized in that: The cleaning unit further comprises a limiting mechanism, the limiting mechanism comprising a fixed plate (209), the fixed plate (209) being fixedly connected to the mounting frame (201), one end of the fixed plate (209) being rotatably connected to a rotating plate (210), one end of the rotating plate (210) being rotatably mounted to a connecting plate (211), both ends of the connecting plate (211) being rotatably connected to the slider (207), and when the connecting plate (211) moves following the rotating plate (210), the slider (207) is driven to move.

5. The easy-to-clean sewage lifting pump according to claim 4, characterized in that: The driving unit further comprises a buffer mechanism, the buffer mechanism comprising a driving torsion spring (301), the driving torsion spring (301) being movably sleeved on the rotating shaft (101), one end of the driving torsion spring (301) being provided with a connecting disk (300), one end of the connecting disk (300) being fixedly connected to the mounting shell (200), the other end of the driving torsion spring (301) being fixedly connected to a connecting column (302), and the connecting column (302) being movably connected inside the mounting shell (200).

6. The easy-to-clean sewage lifting pump according to claim 5, characterized in that: The pressure mechanism further comprises a reset component, the reset component comprising a spring (404), the spring (404) being movably sleeved on the rotating shaft (101), a first support ring (403) being fixedly mounted on the top of the spring (404), the first support ring (403) being located at the bottom of the connecting rod (401), the reset component further comprising a second support ring (405), the second support ring (405) being movably sleeved on the outside of the connecting head (304), a support block (406) being fixedly mounted on the top of the second support ring (405), a positioning rod (418) being mounted on one end of the support block (406), the positioning rod (418) being movably plugged into the connecting head (304), a connecting ring (303) being fixedly mounted on the top of the connecting column (302), the connecting ring (303) being movably plugged into the connecting head (304).

7. The easy-to-clean sewage lifting pump according to claim 6, characterized in that: The driving unit further comprises a lifting mechanism, the lifting mechanism comprising a mounting seat (415), the mounting seat (415) being fixedly mounted on the top of the outer shell (100), the rotating shaft (101) movably passing through the mounting seat (415), a pushing component being mounted on the mounting seat (415), the pushing component comprising an electric cylinder (417), a connecting component being arranged at the output end of the electric cylinder (417), and a pulling rod (411) being arranged at the bottom of the connecting component.

8. The easy-to-clean sewage lifting pump according to claim 7, characterized in that: The connecting assembly comprises a lower turntable (412) and an upper turntable (413), the lower turntable (412) and the upper turntable (413) being rotatably connected, the bottom of the lower turntable (412) being fixedly connected to a pull rod (411), the upper turntable (413) being fixedly connected to an output end of an electric cylinder (417), a slot (414) being provided on the upper turntable (413), an insert block (416) being fixedly installed on the bottom of the mounting seat (415), the slot (414) being matched with the insert block (416), and the sides of the lower turntable (412) and the insert block (416) being close to each other are both frosted.

9. The easy-to-clean sewage lifting pump according to claim 8, characterized in that: A connecting piece (408) is fixedly installed at the bottom of the pull rod (411), a roller (407) is rotatably installed on one side of the connecting piece (408), the roller (407) is located at the bottom of the second support ring (405), a pulling plate (409) is rotatably installed at the bottom of the connecting piece (408), a sliding groove (410) is provided on the first folding rod (202), and one end of the pulling plate (409) is slidably connected to the sliding groove (410) via a connecting shaft.

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