Sewage pump

Abstract

The invention relates to the field of pumps, in particular to a sewage pump which comprises a pump body, a suction pipe is arranged in the center of the lower end of the pump body, a discharge pipe is tangentially arranged on the side face of the lower end of the pump body, an annular plate is arranged at the lower end of the discharge pipe, a plurality of blocking pieces are evenly arranged on the edge of the annular plate in the circumferential direction, a center shaft of the pump body extends to the suction pipe, and a square block is fixed to the lower end of the center shaft. The square block is sleeved with a round seat, a base plate is fixed to the round seat, the upper end face of the base plate makes contact with the lower ends of a plurality of block pieces, a plurality of cutters are fixed to the upper end face of the base plate in the circumferential direction, and the cutters make contact with the block pieces in a sliding mode. And a spiral plate is fixed on the central shaft in the suction pipe. A plurality of crushing shafts are rotationally arranged on the chassis, the plurality of crushing shafts are in meshing transmission with the toothed rings on the annular plate, and a plurality of crushing cutters are fixed on each crushing shaft. Large sundries can be cut into small parts, and blocking is avoided.

Description

Technical Field

[0001] The invention relates to the field of pumps, in particular to a sewage pump. Background Art

[0002] A sewage pump is a product that combines a pump and a motor and operates underwater. It is widely used in various fields. It can transport liquids containing hard solids, fibers, and particularly dirty, sticky and slippery liquids. Sewage pumps are widely used in mining, papermaking, printing and dyeing, environmental protection, oil refining, petroleum, chemicals, farms, dyeing, brewing, food, fertilizers, coking plants, construction, marble plants, mud, quicksand, mud ponds, sewage ponds, turbid liquids, and sewage treatment of thick liquids, loading and suspended matter.

[0003] However, when the debris in the sewage is large, most of the existing sewage pumps will be blocked by the large debris, affecting their use. Summary of the invention

[0004] The object of the present invention is to provide a sewage pump which can cut larger debris into small pieces and avoid blockage.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] A sewage pump comprises a pump body, a suction pipe is arranged at the center of the lower end of the pump body, a discharge pipe is arranged tangentially on the side surface of the lower end of the pump body, a ring plate is arranged at the lower end of the discharge pipe, a plurality of baffles are evenly arranged circumferentially on the edge of the ring plate, the central axis of the pump body extends to the suction pipe, a square is fixed at the lower end of the central axis, a round seat is sleeved on the square, a chassis is fixed on the round seat, the upper end surface of the chassis contacts the lower ends of the plurality of baffles, and a plurality of cutters are fixed circumferentially on the upper end surface of the chassis, the plurality of cutters contact and slide with the plurality of baffles.

[0007] A spiral plate is fixed on the central axis in the suction pipe.

[0008] A plurality of crushing shafts are rotatably arranged on the chassis, and the plurality of crushing shafts are all meshed with the gear ring on the ring plate for transmission, and a plurality of crushing knives are fixed on each crushing shaft.

[0009] A connecting ring I and a connecting ring II are fixed to the upper part of the outer surface of the pump body. The connecting ring I is located above the connecting ring II. The connecting ring I and the connecting ring II are fixedly connected to the two ends of the circular tubular air bag respectively. An air supply pipe is arranged on the connecting ring I.

[0010] The connecting ring I is penetrated by two slide bars, and cylindrical rings are fixed at the lower ends of the two slide bars. The cylindrical rings are coaxially arranged with the pump body and are located inside the airbag. A spring I is arranged between the cylindrical rings and the connecting ring I. When the airbag is not inflated, the cylindrical ring pushes the airbag downward inside the airbag.

[0011] A connecting ring is fixed to the lower part of the outer surface of the pump body, and a shield pipe is fixed to the outer end of the connecting ring.

[0012] The connecting ring is provided with a plurality of water leakage holes.

[0013] An L-shaped extension tube is sealably slidably arranged inside the discharge tube, a limit seat is rotatably arranged on the L-shaped extension tube, and the limit seat is axially limit-slidably connected with the discharge tube.

[0014] A spring II is provided between the limit seat and the discharge pipe.

[0015] A worm wheel ring is fixed on the L-shaped extension tube, a worm is rotated on the limiting seat, and the worm is meshed and driven with the worm wheel ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 and Figure 2 It is a schematic diagram of the structure of the sewage pump;

[0017] Figure 3 It is a schematic cross-sectional view of the structure in which the airbag is pushed into the shield tube by the cylindrical ring;

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure when the airbag is inflated;

[0019] Figure 5 and Figure 6 It is a schematic diagram of the structure of the pump body;

[0020] Figure 7 It is a schematic diagram of the chassis structure;

[0021] Figure 8 It is a schematic diagram of the structure of the crushing shaft;

[0022] Fig. 9 It is a schematic diagram of the structure of an L-shaped extension tube;

[0023] Fig.10 It is a schematic diagram of the structure of a cylindrical ring.

[0024] In the figure:

[0025] Pump body 101; discharge pipe 102; suction pipe 103; ring plate 104; central axis 105; spiral plate 106; block 107; blocking piece 108; connecting ring I 109; connecting ring II 110; connecting ring 111; shield pipe 112; air supply pipe 113; air bag 114;

[0026] Chassis 201; round base 202; cutter 203;

[0027] Crushing shaft 301; Crushing knife 302;

[0028] L-shaped extension tube 401; limit seat 402; spring II 403; worm wheel ring 404; worm 405;

[0029] Cylindrical ring 501; sliding rod 502; spring I 503. DETAILED DESCRIPTION

[0030] like Figure 1-10 As shown, the sewage pump is described in detail:

[0031] A sewage pump includes a pump body 101 consisting of a motor and a pump, a suction pipe 103 is provided at the center of the lower end of the pump body 101, a discharge pipe 102 is tangentially provided on the side of the lower end of the pump body 101, a ring plate 104 is provided at the lower end of the discharge pipe 102, a plurality of baffles 108 are uniformly provided circumferentially on the edge of the ring plate 104, a central axis 105 of the pump body 101 extends to the suction pipe 103, a block 107 is fixed at the lower end of the central axis 105, a round seat 202 is sleeved on the block 107, a chassis 201 is fixed on the round seat 202, an upper end surface of the chassis 201 contacts with the lower ends of the plurality of baffles 108, and a plurality of cutters 203 are fixed circumferentially on the upper end surface of the chassis 201, and the plurality of cutters 203 contact and slide with the plurality of baffles 108.

[0032] When in use, the pump body 101 is placed in sewage, and the pump body 101 is started. The sewage will be sucked in through the suction pipe 103 and then discharged through the discharge pipe 102. A power cord is provided at the upper end of the pump body 101. At the same time, when the pump body 101 is started, the central shaft 105 is driven to rotate.

[0033] The ring plate 104, the plurality of baffles 108 and the bottom plate 201 form a frame to cover the lower end of the suction pipe 103. Moreover, due to the uniform arrangement of the plurality of baffles 108, there is a gap between two adjacent baffles 108, so that the sewage is connected to the suction pipe 103 through the gap. At the same time, the plurality of baffles 108 form a block to prevent larger debris from entering the frame and causing the lower port of the suction pipe 103 to be blocked.

[0034] At the same time, when in use, the rotating central axis 105 will drive the round seat 202 through the block 107, causing the chassis 201 to rotate, and then driving multiple cutters 203 to rotate on the inner wall of the blocking piece 108, thereby cooperating with the blocking piece 108 to cut off the debris, ensuring that the debris entering the frame is cut into small pieces, and preventing the debris from blocking the pump body 101.

[0035] Further:

[0036] A spiral plate 106 is fixed on the central axis 105 in the suction pipe 103 .

[0037] When in use, the rotating central shaft 105 can drive the spiral plate 106 to rotate, and then the spiral drives the debris into the suction pipe 103, further ensuring the smoothness of the pump body 101 in extracting sewage.

[0038] like Figure 5-8 As shown:

[0039] A plurality of crushing shafts 301 are rotatably mounted on the chassis 201 . The plurality of crushing shafts 301 are all meshed with the gear ring on the ring plate 104 for transmission, and a plurality of crushing knives 302 are fixed on each crushing shaft 301 .

[0040] When the chassis 201 rotates, it will also drive the multiple crushing shafts 301 to rotate around the central axis 105, so that the multiple crushing shafts 301 and the gear ring on the ring plate 104 move relative to each other, and then the multiple crushing shafts 301 rotate around their own axes, thereby driving the multiple crushing knives 302 to rotate, thereby crushing the debris in the frame. Moreover, the multiple crushing shafts 301 also drive the crushing knives 302 to rotate around the central axis 105, thereby ensuring that the debris in the frame is fully crushed.

[0041] like Figure 3-6 , as shown in 10

[0042] A connecting ring I109 and a connecting ring II110 are fixed to the upper part of the outer surface of the pump body 101. The connecting ring I109 is located above the connecting ring II110. The connecting ring I109 and the connecting ring II110 are fixedly connected to the two ends of the tubular airbag 114 respectively. An air supply pipe 113 is provided on the connecting ring I109.

[0043] During use, when the pump body 101 is placed in sewage, due to excessive impurities at the bottom of the sewage, the pump body 101 needs to float in the middle of the sewage, that is, not in contact with the bottom, nor floating on the water surface. Air is supplied to the air bag 114 through the air supply pipe 113, so that the air bag 114 expands, increasing the volume of the air bag 114, thereby increasing the overall volume of the sewage pump, and then increasing the buoyancy of the sewage pump, so that the pump body 101 can float in the middle of the sewage to complete the operation.

[0044] Further:

[0045] The connecting ring Ⅰ109 has two slide bars 502 passing through it, and a cylindrical ring 501 is fixed at the lower end of the two slide bars 502. The cylindrical ring 501 is coaxially arranged with the pump body 101 and is located inside the airbag 114. A spring Ⅰ503 is provided between the cylindrical ring 501 and the connecting ring Ⅰ109. When the airbag 114 is not inflated, the cylindrical ring 501 pushes the airbag 114 downward inside the airbag 114.

[0046] When the sewage pump is folded, the gas inside the airbag 114 is discharged through the air supply pipe 113, and the airbag 114 will be scattered outside the pump body 101. In order to ensure the neatness of the airbag 114, a cylindrical ring 501 is provided. When the air in the airbag 114 is exhausted, the elastic force of the spring I 503 will push the cylindrical ring 501 downward, and the cylindrical ring 501 will push the airbag 114 downward inside the airbag 114, so that the airbag 114 is in a tensioned state around the pump body 101 as a whole, ensuring the neatness of the airbag; and when the airbag 114 is inflated, the airbag 114 can overcome the elastic force of the spring I 503 and be propped up.

[0047] Further:

[0048] A connecting ring 111 is fixed to the lower portion of the outer surface of the pump body 101 , and a shield tube 112 is fixed to the outer end of the connecting ring 111 .

[0049] By setting the shield tube 112, when the cylindrical ring 501 pushes the airbag 114 downward inside the airbag 114 so that the airbag 114 is in a tensioned state around the pump body 101 as a whole, the shield tube 112 can protect the airbag 114 in this state to prevent damage to the airbag 114.

[0050] Further:

[0051] The connecting ring 111 is provided with a plurality of water leakage holes.

[0052] The water stored in the shield pipe 112 can be discharged through the water leakage hole.

[0053] like Fig. 9 As shown:

[0054] An L-shaped extension tube 401 is sealed and slidably disposed inside the discharge tube 102 . A limit seat 402 is rotatably disposed on the L-shaped extension tube 401 . The limit seat 402 is axially limit-slidably connected to the discharge tube 102 .

[0055] Since the suction pipe 103 of the sewage pump is located at the center of the lower end, it will be in a vertical state when in use. Since the sewage pump is located in the sewage, an L-shaped extension tube 401 is provided to facilitate the upward transportation and discharge of the pumped sewage. However, when the airbag 114 is inflated and propped up, the upright portion of the L-shaped extension tube 401 will hinder the propping up of the airbag 114, thereby allowing the L-shaped extension tube 401 to slide in the discharge pipe 102, thereby increasing the space between the upright portion of the L-shaped extension tube 401 and the pump body 101, thereby avoiding affecting the expansion of the airbag 114.

[0056] Further:

[0057] A spring II 403 is provided between the limiting seat 402 and the discharge pipe 102 .

[0058] By setting the spring II 403, after the airbag 114 is exhausted, the elastic force of the spring II 403 will push the limit seat 402 to drive the L-shaped extension tube 401 to slide back in the discharge pipe 102, so that the upright part of the L-shaped extension tube 401 is close to the pump body 101, so that the overall space occupied by the sewage pump is automatically reduced, which is convenient for storage.

[0059] Further:

[0060] A worm wheel ring 404 is fixed on the L-shaped extension tube 401 , a worm 405 is rotated on the limiting seat 402 , and the worm 405 is meshed and transmission-connected with the worm wheel ring 404 .

[0061] By rotating the worm 405, the transmission worm ring 404 can be engaged to drive the L-shaped extension tube 401 to rotate, thereby changing the direction of the erected portion of the L-shaped extension tube 401, thereby making it more convenient for the sewage pump to transport and discharge sewage.

Claims

1. A sewage pump, characterized in that: The pump comprises a pump body (101), wherein a suction pipe (103) is provided at the center of the lower end of the pump body (101), a discharge pipe (102) is tangentially provided on the side surface of the lower end of the pump body (101), a ring plate (104) is provided at the lower end of the discharge pipe (102), a plurality of blocking pieces (108) are evenly provided on the edge of the ring plate (104) in a circumferential direction, a central axis (105) of the pump body (101) extends to the suction pipe (103), a square block (107) is fixed at the lower end of the central axis (105), a round seat (202) is sleeved on the square block (107), a bottom plate (201) is fixed on the round seat (202), an upper end surface of the bottom plate (201) contacts with the lower ends of the plurality of blocking pieces (108), and a plurality of cutters (203) are circumferentially fixed on the upper end surface of the bottom plate (201), and the plurality of cutters (203) contact and slide with the plurality of blocking pieces (108).

2. A sewage pump according to claim 1, characterized in that: A spiral plate (106) is fixed on the central axis (105) in the suction pipe (103).

3. A sewage pump according to claim 1, characterized in that: A plurality of crushing shafts (301) are rotatably mounted on the chassis (201), the plurality of crushing shafts (301) are all meshed with the gear ring on the ring plate (104) for transmission, and a plurality of crushing knives (302) are fixed on each crushing shaft (301).

4. A sewage pump according to claim 1, characterized in that: A connecting ring I (109) and a connecting ring II (110) are fixed to the upper portion of the outer surface of the pump body (101), the connecting ring I (109) is located above the connecting ring II (110), the connecting ring I (109) and the connecting ring II (110) are respectively fixedly connected to the two ends of the circular tubular air bag (114), and an air supply pipe (113) is provided on the connecting ring I (109).

5. A sewage pump according to claim 4, characterized in that: The connecting ring I (109) is penetrated by two slide bars (502), and cylindrical rings (501) are fixed at the lower ends of the two slide bars (502). The cylindrical ring (501) is coaxially arranged with the pump body (101) and is located inside the airbag (114). A spring I (503) is arranged between the cylindrical ring (501) and the connecting ring I (109). When the airbag (114) is not inflated, the cylindrical ring (501) pushes the airbag (114) downward inside the airbag (114).

6. A sewage pump according to claim 5, characterized in that: A connecting ring (111) is fixed to the lower part of the outer surface of the pump body (101), and a shield tube (112) is fixed to the outer end of the connecting ring (111).

7. A sewage pump according to claim 6, characterized in that: The connecting ring (111) is provided with a plurality of water leakage holes.

8. A sewage pump according to claim 4, characterized in that: An L-shaped extension tube (401) is sealingly and slidingly provided inside the discharge tube (102), a limit seat (402) is rotatably provided on the L-shaped extension tube (401), and the limit seat (402) is axially limit-slidably connected to the discharge tube (102).

9. A sewage pump according to claim 8, characterized in that: A spring II (403) is provided between the limiting seat (402) and the discharge pipe (102).

10. A sewage pump according to claim 8, characterized in that: A worm wheel ring (404) is fixed on the L-shaped extension tube (401), a worm (405) is rotated on the limiting seat (402), and the worm (405) is meshed and transmission-connected with the worm wheel ring (404).

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