CN118499285B - Pump head structure of sewage pump - Google Patents

Abstract

The present invention relates to the technical field of water pump parts, and in particular to a sewage pump head structure, comprising a water pump main body, a water pump base being fixedly connected to the outside of the water pump main body, a flange connecting ring for connecting to a sewage pipe being installed at the sewage inlet pump head of the water pump main body, a pump box assembly being arranged outside the flange connecting ring, the pump box assembly comprising a filter layer plate for filtering and a filter box body for placing the filter layer plate, a cleaning assembly for discharging impurities being arranged outside the filter box body, the present invention introduces sewage through the pump box assembly, the sewage is filtered and screened in the pump box assembly and retained in the pump box assembly, at which time the cleaning assembly provided in cooperation discharges the screened large-particle solid impurities from the pump box assembly to the outside, and by quickly filtering and discharging the large-particle solid impurities, it is avoided that the large-particle solid impurities accumulate and block the pump head of the water pump main body, thereby improving the unobstructed performance of the water pump main body when conveying sewage.

Description

A sewage pump head structure

Technical Field

The invention relates to the technical field of water pump parts, in particular to a sewage water pump head structure.

Background Art

A sewage pump is a pump used to transport sewage. Since the sewage being transported may contain large solid impurities, large solid impurities are easily accumulated at the pump head of the sewage pump. At the same time, since there are many types of debris flowing through the sewage pump, it is difficult to completely crush the debris even if a crushing device is added to the pump in time. Therefore, the accumulation of debris at the pump head not only reduces the sewage transportation speed, but also easily causes blockage inside the sewage pump, resulting in poor sewage discharge and even overload and damage to the drive device. Therefore, there is an urgent need for a pump head structure that can filter large solid impurities before the sewage enters the pump.

Summary of the invention

In order to overcome the deficiencies of the prior art, the present invention provides a sewage pump head structure.

In order to solve the above technical problems, the present invention provides the following technical solutions: a sewage pump head structure, including a water pump body, the outside of the water pump body is fixedly connected to a water pump base, a flange connection ring for connecting to a sewage pipe is installed at the sewage inlet pump head of the water pump body, a pump box assembly for filtering large particles of impurities in sewage is arranged on the outside of the flange connection ring, the pump box assembly includes a filter layer plate for filtering and a filter box body for placing the filter layer plate, the filter box body is fixedly connected to the flange connection ring by bolts, an inner cavity is opened inside the filter box body, the filter layer plate is movably connected inside the inner cavity, the center of the filter layer plate is open, and a filter screen for filtering sewage is fixedly inlaid in the central opening of the filter layer plate, which is used to discharge impurities. The bottom plate, the connecting partition and the elastic rope, the bottom plate is movably connected to the inside of the inner cavity, the corner of the bottom plate close to the filter layer plate is inclined, the connecting partition is fixedly connected to the side of the bottom plate away from the inner cavity, the number of elastic ropes is set to two, the two elastic ropes are respectively fixed and embedded in the two sides of the outside of the filter box, the ends of the two elastic ropes away from the filter box are fixedly connected to the side of the connecting partition close to the filter box, the bottom plate is driven by the connecting partition to move up and down outside the filter box, both sides of the inner cavity are opened, each of which is slidably connected, the two facing sides are respectively fixedly connected to the two sides of the outside of the filter layer plate, the filter layer plate moves inside the inner cavity through the two, and a cleaning component for discharging impurities is provided on the outside of the filter box.

As a preferred technical solution of the present invention, the cleaning component includes an outer box body, a push plate and a sealing shell for cleaning impurities, the sealing shell is arranged above the outside of the filter box body, the outer box body is fixedly embedded in the outside of the sealing shell, and the outer box body is connected to the inside of the filter box body, the push plate is movably connected to the inside of the outer box body, the upper end of the push plate is fixedly connected to a hanging plate, and a tooth groove is provided on the outside of the hanging plate, and a driving motor for providing power is fixedly connected to the outside of the outer box body, and an active tooth is fixedly connected to the outside of the output shaft of the driving motor, and the active tooth is meshingly connected to the tooth groove, and the meshing transmission of the active tooth and the tooth groove drives the hanging plate and makes the push plate move upward or downward inside the outer box body, the hanging plate is in a U-shaped plate shape, and a baffle is fixedly connected to the inside of the outer box body, and the end of the hanging plate close to the push plate movably penetrates the baffle and is fixedly connected to the push plate, and the end of the push plate away from the hanging plate is fixedly connected to an auxiliary support plate.

As a preferred technical solution of the present invention, the shell and the filter box are connected by providing a plurality of snap-fit assemblies, each snap-fit assembly includes a mounting seat and a socket for connection, the socket is fixedly connected to the outside of the filter box, an opening is provided at the center of the socket, the mounting seat is fixedly connected to the outside of the shell, the inside of the mounting seat is rotatably connected with a roller, the outside of the roller is fixedly connected with a rotating clamping plate, the rotating clamping plate rotates inside the mounting seat through the roller, an empty groove is provided on the outside of the rotating clamping plate, an insertion roller is provided inside the empty groove, the insertion roller movably passes through the inside of the empty groove and extends to the outside of the rotating clamping plate, a pull ring is fixedly connected to the outside of the insertion roller, a circular groove is provided inside the empty groove, one end of the insertion roller located inside the empty groove is fixedly connected to a sleeve plate, a sleeve spring is fixedly connected to the side of the ring plate facing the inner wall of the circular groove, the sleeve spring is movably sleeved on the outside of the insertion roller, and the insertion roller is movably connected to the opening in the center of the socket.

As a preferred technical solution of the present invention, a collecting component for collecting impurities is arranged below the outside of the filter box, the collecting component includes a collecting box, a first clamping column, a first elastic clamping plate, a second elastic clamping plate, a first clamping slot and an upper notch, the upper notch is arranged on the outside of the collecting box, the first elastic clamping plate is rotatably connected to the inside of the upper notch, the first elastic clamping plate has elasticity, the first clamping slot is arranged on the outside of the filter box, the first clamping column is fixedly connected to a side of the first elastic clamping plate close to the filter box, one end of the first clamping column away from the first elastic clamping plate is movably connected to the inside of the first clamping slot, and the collecting box is suspended below the filter box through the first clamping column, the collecting component also includes an outer notch, the outer notch is arranged on the outside of the water pump base, a second clamping slot is arranged inside the outer notch, the second clamping slot is movably connected to the second clamping column, the outside of the second clamping column is fixedly connected to the second elastic clamping plate, one end of the second elastic clamping plate away from the second clamping column is rotatably connected to the outside of the collecting box, and one end of the collecting box close to the water pump base is inclinedly suspended below the filter box through the second elastic clamping plate.

As a preferred technical solution of the present invention, an auxiliary connecting guide assembly is arranged inside the filter layer plate, and the guide assembly includes a guide ring, an annular groove, a transverse spring and a guide pipe. The guide ring is fixedly embedded in a side of the filter layer plate close to the water pump body, the annular groove is arranged outside the guide ring, the guide pipe is movably connected inside the annular groove, and one end of the guide pipe away from the guide ring extends into the sewage inlet pump head of the water pump body, and the two ends of the transverse spring are respectively fixedly connected to the side of the guide pipe facing the inner wall of the annular groove.

Compared with the prior art, the present invention can achieve the following beneficial effects:

1. The sewage is introduced through the pump box assembly, and the sewage is filtered and screened in the pump box assembly and retained inside the pump box assembly. At this time, the cleaning assembly is provided to discharge the screened large-particle solid impurities from the pump box assembly to the outside. By quickly filtering and discharging the large-particle solid impurities, it is avoided that the large-particle solid impurities accumulate and block the pump head of the water pump body, thereby improving the unobstructed performance of the water pump body when transporting sewage.

2. When the bottom plate is pushed out of the inner cavity, the bottom plate drives the elastic ropes on both sides to stretch outside the filter box, and when the push plate is reset inside the outer box and separated from the bottom plate, the elastic force generated by the elastic rope drives the bottom plate to reset and re-engage the bottom plate into the inner cavity, and the inner cavity is re-sealed by the bottom plate, thereby facilitating the reciprocating cycle of discharging large solid impurities after screening inside the inner cavity.

3. When large particles of solid impurities are discharged in the pump box assembly, the large particles of solid impurities are collected by the set collection assembly, and the collection assembly is removed from the outside of the water pump body to quickly remove the large particles of solid impurities piled up in the collection box, thereby facilitating the device to continuously filter and process the large particles of solid impurities.

4. When the filter box is connected to the pump head of the water pump body, the elastic force generated by the transverse spring on the guide tube causes the guide tube to extend into the pump head of the water pump body, so that the sewage passes through the filter and is guided by the guide tube into the water pump body, thereby ensuring that the sewage flows stably into the water pump body.

5. Pull the pull ring to separate the insertion roller from the socket, and open the inner cavity by separating the sealing shell from the filter box. At this time, the filter layer plate can be taken out from the inner cavity, so as to achieve the effect of quickly taking out and replacing the filter layer plate.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic structural diagram of the present invention;

FIG2 is a schematic structural diagram of an outer notch of the present invention;

FIG3 is a schematic structural diagram of a second card slot of the present invention;

FIG4 is a schematic structural diagram of an outer box body of the present invention;

FIG5 is a schematic cross-sectional view of the outer box body of the present invention;

FIG6 is a schematic structural diagram of a filter housing according to the present invention;

FIG7 is a schematic structural diagram of a mounting base of the present invention;

FIG8 is a schematic diagram of the structure of the filter layer plate of the present invention;

FIG. 9 is a schematic structural diagram of a collection box of the present invention.

Among them: 10, water pump body; 11, water pump base; 12, flange connection ring; 20, filter box; 21, filter layer plate; 22, inner cavity; 23, filter screen; 24, bottom plate; 25, connecting partition; 26, elastic rope; 30, outer box; 31, baffle; 32, push plate; 33, drive motor; 34, active gear; 35, tooth groove; 36, hanging plate; 37, shell; 38, auxiliary support plate; 40, mounting seat; 41, rotating card plate; 42. Roller; 43. Empty slot; 44. Insert roller; 45. Round slot; 46. Ring plate; 47. Sleeve spring; 48. Pull ring; 49. Socket; 50. Collection box; 51. First clamping column; 52. First elastic clamping plate; 53. Second elastic clamping plate; 54. Outer slot; 55. First clamping slot; 56. Second clamping slot; 57. Second clamping column; 58. Upper slot; 60. Guide ring; 61. Ring groove; 62. Transverse spring; 63. Guide tube.

DETAILED DESCRIPTION

In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present invention. The experimental methods in the following embodiments, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following embodiments, unless otherwise specified, can all be obtained from commercial channels.

Embodiment: As shown in Figures 1, 2, 3, 5 and 6, a sewage pump head structure comprises a pump body 10, a pump base 11 is fixedly connected to the outside of the pump body 10, a flange connection ring 12 for connecting to a sewage pipe is installed at the sewage inlet pump head of the pump body 10, a pump box assembly for filtering large particles of impurities in sewage is arranged on the outside of the flange connection ring 12, the pump box assembly comprises a filter layer plate 21 for filtering and a filter box body 20 for placing the filter layer plate 21, the filter box body 20 is fixedly connected to the flange connection ring 12 by bolts, an inner cavity 22 is opened inside the filter box body 20, the filter layer plate 21 is movably connected to the inner cavity 22, the center of the filter layer plate 21 is open, and a filter screen 23 for filtering sewage is fixedly inlaid at the central opening of the filter layer plate 21, a bottom plate 24 for discharging impurities, a connecting partition 25 and an elastic Rope 26, bottom plate 24 is movably connected to the inside of the inner cavity 22, the corner of one side of the bottom plate 24 close to the filter layer plate 21 is arranged in an inclined shape, the connecting partition plate 25 is fixedly connected to the side of the bottom plate 24 away from the inside of the inner cavity 22, the number of elastic ropes 26 is set to two, the two elastic ropes 26 are respectively fixedly embedded in the two sides of the outside of the filter box 20, the ends of the two elastic ropes 26 away from the filter box 20 are fixedly connected to the side of the connecting partition plate 25 close to the filter box 20, the bottom plate 24 is driven by the connecting partition plate 25 to move up and down outside the filter box 20, both sides of the inner cavity 22 are opened, each of the interior of 27 is slidably connected with 28, the two sides of the two 28 facing each other are respectively fixedly connected to the two sides of the outside of the filter layer plate 21, the filter layer plate 21 moves inside the inner cavity 22 through the two 28, and a cleaning component for discharging impurities is provided on the outside of the filter box 20.

Referring to Figures 2, 4 and 5, the cleaning assembly includes an outer box body 30 for cleaning impurities, a push plate 32 and a sealing shell 37, the sealing shell 37 is arranged above the outside of the filter box body 20, the outer box body 30 is fixedly embedded in the outside of the sealing shell 37, and the outer box body 30 is connected to the inside of the filter box body 20, the push plate 32 is movably connected to the inside of the outer box body 30, the upper end of the push plate 32 is fixedly connected to a hanging plate 36, the outside of the hanging plate 36 is provided with a tooth groove 35, and the outside of the outer box body 30 is fixedly connected to a driving motor for providing power 33, the output shaft of the driving motor 33 is fixedly connected with a driving tooth 34 on the outside, and the driving tooth 34 is meshed with the tooth groove 35. The meshing transmission of the driving tooth 34 and the tooth groove 35 drives the hanging plate 36 and enables the push plate 32 to move upward or downward inside the outer box body 30. The hanging plate 36 is a U-shaped plate. The baffle plate 31 is fixedly connected to the inside of the outer box body 30. The end of the hanging plate 36 close to the push plate 32 movably penetrates the baffle plate 31 and is fixedly connected to the push plate 32. The end of the push plate 32 away from the hanging plate 36 is fixedly connected with an auxiliary support plate 38.

Referring to Figures 5 and 7, the sealing shell 37 is connected to the filter box 20 by providing a plurality of buckle assemblies, each of which includes a mounting seat 40 and a socket 49 for connection, the socket 49 is fixedly connected to the outside of the filter box 20, the center of the socket 49 is provided with an opening, the mounting seat 40 is fixedly connected to the outside of the sealing shell 37, the inside of the mounting seat 40 is rotatably connected to a roller 42, the outside of the roller 42 is fixedly connected to a rotating card plate 41, the rotating card plate 41 rotates inside the mounting seat 40 through the roller 42, the outside of the rotating card plate 41 is provided with an empty slot 43, the inside of the empty slot 43 is provided with an inserting roller 44, the inserting roller 44 movably penetrates the inside of the empty slot 43 and extends to the outside of the rotating card plate 41 The outside of the insert roller 44 is fixedly connected with a pull ring 48, and the inside of the empty groove 43 is provided with a circular groove 45. The end of the insert roller 44 located inside the empty groove 43 is fixedly connected with a sleeve plate 46, and the side of the sleeve plate 46 facing the inner wall of the circular groove 45 is fixedly connected with a sleeve spring 47. The sleeve spring 47 is movably sleeved on the outside of the insert roller 44, and the insert roller 44 is movably connected to the opening in the center of the socket 49. The insert roller 44 is separated from the socket 49 by pulling the pull ring 48. At this time, the shell 37 can be separated from the filter box 20. By separating the shell 37 from the filter box 20, the interior of the inner cavity 22 is opened, and the filter layer plate 21 can be taken out from the inner cavity 22 at this time, so as to achieve the effect of quickly taking out and replacing the filter layer plate 21.

Referring to Figures 1, 2 and 9, a collecting assembly for collecting impurities is provided below the outside of the filter box 20, and the collecting assembly includes a collecting box 50, a first clamping column 51, a first elastic clamping plate 52, a second elastic clamping plate 53, a first clamping groove 55 and an upper notch 58, wherein the upper notch 58 is provided on the outside of the collecting box 50, the first elastic clamping plate 52 is rotatably connected to the inside of the upper notch 58, the first elastic clamping plate 52 has elasticity, the first clamping groove 55 is provided on the outside of the filter box 20, the first clamping column 51 is fixedly connected to a side of the first elastic clamping plate 52 close to the filter box 20, and one end of the first clamping column 51 away from the first elastic clamping plate 52 is movably connected to the inside of the first clamping groove 55, the collecting box 50 is suspended below the filter box 20 by the first clamping column 51, and the collecting assembly The component also includes an outer notch 54, which is opened on the outside of the water pump base 11, and a second slot 56 is opened inside the outer notch 54. The second slot 56 is movably connected to the inside of the second slot 56, and the outside of the second slot 57 is fixedly connected to the second elastic clamping plate 53. The end of the second elastic clamping plate 53 away from the second clamping column 57 is rotatably connected to the outside of the collecting box 50, and the end of the collecting box 50 close to the water pump base 11 is suspended in an inclined state below the filter box 20 through the second elastic clamping plate 53. The first elastic clamping plate 52 and the second elastic clamping plate 53 are both elastic, so that the first elastic clamping plate 52 can drive the first clamping column 51 to engage into the inside of the first slot 55, and the second elastic clamping plate 53 can drive the second clamping column 57 to engage into the inside of the second slot 56.

5 and 8, an auxiliary connecting guide assembly is provided inside the filter layer plate 21, and the guide assembly includes a guide ring 60, an annular groove 61, a transverse spring 62 and a guide pipe 63. The guide ring 60 is fixedly embedded in a side of the filter layer plate 21 close to the water pump body 10, the annular groove 61 is arranged outside the guide ring 60, and the guide pipe 63 is movably connected inside the annular groove 61. One end of the guide pipe 63 away from the guide ring 60 extends into the sewage inlet pump head of the water pump body 10, and the two ends of the transverse spring 62 are respectively fixedly connected to the side of the guide pipe 63 facing the inner wall of the annular groove 61. When the filter box 20 is connected to the pump head of the water pump body 10, the elastic force generated by the transverse spring 62 on the guide pipe 63 causes the guide pipe 63 to extend into the pump head of the water pump body 10, so that the sewage passes through the filter screen 23 and is guided by the guide pipe 63 into the water pump body 10, so as to achieve the effect of ensuring that the sewage stably flows into the water pump body 10.

Working principle:

During use: the first step is to connect the sewage pipe to the filter box 20 through the flange, start the water pump body 10 to make the sewage pipe deliver water to the water pump body 10, and the sewage enters the interior of the filter box 20 and is filtered by the filter screen 23 to screen the large particles of solid impurities in the inner cavity 22 for storage. At this time, the driving motor 33 is started to drive the active gear 34 to engage with the hanging plate 36 for transmission, and the hanging plate 36 drives the push plate 32 downward inside the outer box 30 and drives the auxiliary support plate 38 to move synchronously. The auxiliary support plate 38 pushes the bottom plate 24 downward to separate from the interior of the inner cavity 22 and open the interior of the inner cavity 22. At this time, the large particles of solid impurities after screening are discharged from the inside of the inner cavity 22. By quickly filtering and discharging large particles of solid impurities, it is avoided that the large particles of solid impurities accumulate and block the pump head of the water pump body 10, thereby improving the smooth performance of the water pump body 10 when transporting sewage.

In the second step, when the bottom plate 24 is pushed out of the inner cavity 22, the bottom plate 24 drives the elastic ropes 26 on both sides to stretch outside the filter box 20, and when the push plate 32 is reset inside the outer box 30 and separated from the bottom plate 24, the elastic force generated by the elastic ropes 26 drives the bottom plate 24 to reset and re-engage the bottom plate 24 into the inner cavity 22, and the inner cavity 22 is re-sealed by the bottom plate 24, thereby facilitating the reciprocating cycle of discharging large particles of solid impurities after screening inside the inner cavity 22.

In the third step, the large solid impurities in the inner cavity 22 are pushed out by the push plate 32, and the large solid impurities fall from the inner cavity 22 into the collecting box 50, and the collecting box 50 collects the large solid impurities. At the same time, the first elastic card plate 52 and the second elastic card plate 53 are respectively taken out from the first card slot 55 and the outer slot 54, and the collecting box 50 is taken out from the outside of the filter box 20, so as to quickly remove the large solid impurities piled up in the collecting box 50, thereby facilitating the device to continuously filter the large solid impurities.

The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims (7)

1. The utility model provides a sewage water pump head structure, includes water pump main part (10), and the outside fixedly connected with water pump base (11) of water pump main part (10), the flange joint ring (12) that are used for being connected with the sewage pipe are installed to the dirt pump head department of advancing of water pump main part (10), a serial communication port, the outside of flange joint ring (12) is provided with and is used for the filterable pump box subassembly of big granule impurity in the sewage, and pump box subassembly includes:

The filter comprises a filter layer plate (21) for filtering and a filter box body (20) for placing the filter layer plate (21), wherein the filter box body (20) is fixedly connected with a flange connecting ring (12) through bolts, an inner cavity (22) is formed in the filter box body (20), the filter layer plate (21) is movably connected in the inner cavity (22), the center of the filter layer plate (21) is in an opening shape, and a filter screen (23) for filtering sewage is fixedly inlaid in the center opening of the filter layer plate (21);

the device comprises a bottom plate (24) for discharging impurities, a connecting baffle plate (25) and elastic ropes (26), wherein the bottom plate (24) is movably connected in an inner cavity (22), the connecting baffle plate (25) is fixedly connected to one side, far away from the inner cavity (22), of the bottom plate (24), the number of the elastic ropes (26) is two, the two elastic ropes (26) are respectively fixedly inlaid on two sides of the outer part of a filtering box body (20), and one ends, far away from the filtering box body (20), of the two elastic ropes (26) are fixedly connected to one side, close to the filtering box body (20), of the connecting baffle plate (25);

The outside of filtering box (20) is provided with impurity exhaust clearance subassembly, and clearance subassembly includes:

The device comprises an outer box body (30), a push plate (32) and a sealing shell (37) for cleaning impurities, wherein the sealing shell (37) is arranged above the outside of the filter box body (20), the outer box body (30) is fixedly inlaid outside the sealing shell (37), the push plate (32) is movably connected inside the outer box body (30), the upper end of the push plate (32) is fixedly connected with a hanging plate (36), a tooth slot (35) is formed in the outside of the hanging plate (36), a driving motor (33) for providing power is fixedly connected to the outside of the outer box body (30), driving teeth (34) are fixedly connected to the outside of an output shaft of the driving motor (33), and the driving teeth (34) are in meshed connection with the tooth slot (35);

The utility model provides a filter box (20) outside below is provided with the collection subassembly that is used for collecting impurity, collection subassembly is including collecting box (50), first card post (51), first elastic clamping board (52), second elastic clamping board (53), first draw-in groove (55) and last notch (58), the outside at collecting box (50) is seted up in last notch (58), the inside at last notch (58) is connected in first elastic clamping board (52) rotation, first elastic clamping board (52) possess elasticity, the outside at filter box (20) is seted up in first draw-in groove (55), one side that is close to filter box (20) at first card post (51) fixed connection, the one end swing joint of first elastic clamping board (52) is kept away from in first draw-in groove (55) inside, collecting box (50) hang the below at filter box (20) through first card post (51).

2. The sewage pump head structure according to claim 1, wherein the baffle plate (31) is fixedly connected to the inside of the outer box body (30), one end of the hanging plate (36) close to the pushing plate (32) movably penetrates through the baffle plate (31) and is fixedly connected with the pushing plate (32), and one end of the pushing plate (32) far away from the hanging plate (36) is fixedly connected with the auxiliary supporting plate (38).

3. A sewage pump head structure according to claim 1, characterized in that the enclosure (37) is connected to the filtering box (20) by a plurality of fastening components, each fastening component comprising:

A mount pad (40) and socket (49) for connecting, socket (49) fixed connection is in the outside of filter box (20), the center department of socket (49) is equipped with the opening, the outside at envelope (37) is connected with in mount pad (40) fixed connection, the inside rotation of mount pad (40) is connected with rotatory roller (42), the outside fixedly connected with of rotatory roller (42) rotates cardboard (41), rotate cardboard (41) and rotate at the inside of mount pad (40) through rotatory roller (42), empty slot (43) have been seted up to the outside of rotatory cardboard (41), the inside of empty slot (43) is provided with cartridge (44), the inside of cartridge (44) activity run through empty slot (43) and outwards extend to rotatory cardboard (41), the outside fixedly connected with pull ring (48) of cartridge (44).

4. The sewage pump head structure according to claim 3, wherein a circular notch (45) is formed in the hollow groove (43), one end of the inserting roller (44) located in the hollow groove (43) is fixedly connected with a collar plate (46), one side, opposite to the inner wall of the circular groove (45), of the collar plate (46) is fixedly connected with a sleeve spring (47), the sleeve spring (47) is movably sleeved on the outer portion of the inserting roller (44), and the inserting roller (44) is movably connected in an opening in the center of the socket (49).

5. The sewage pump head structure according to claim 1, wherein two sides of the interior of the inner cavity (22) are provided with the grooves (27), the interior of each groove (27) is slidably connected with the groove (28), one opposite sides of the grooves (28) are fixedly connected with two sides of the exterior of the filtering laminate (21), and the filtering laminate (21) moves in the interior of the inner cavity (22) through the grooves (28).

6. The sewage pump head structure according to claim 1, wherein the collecting assembly further comprises an outer notch (54), the outer notch (54) is formed in the outer portion of the water pump base (11), the second clamping groove (56) is formed in the outer notch (54), the second clamping column (57) is movably connected to the second clamping groove (56), the second elastic clamping plate (53) is fixedly connected to the outer portion of the second clamping column (57), one end, far away from the second clamping column (57), of the second elastic clamping plate (53) is rotatably connected to the outer portion of the collecting box (50), and one end, close to the water pump base (11), of the collecting box (50) is suspended below the filtering box body (20) in an inclined mode through the second elastic clamping plate (53).

7. The sewage pump head structure according to claim 1, wherein an auxiliary connection guiding assembly is arranged in the filtering laminate (21), the guiding assembly comprises a guiding ring (60), an annular groove (61), a transverse spring (62) and a guiding tube (63), the guiding ring (60) is fixedly inlaid on one side, close to the water pump main body (10), of the filtering laminate (21), the annular groove (61) is formed in the outer portion of the guiding ring (60), the guiding tube (63) is movably connected in the annular groove (61), one end, far away from the guiding ring (60), of the guiding tube (63) extends into the sewage pump head of the water pump main body (10), and two ends of the transverse spring (62) are fixedly connected to one side, opposite to the inner wall of the annular groove (61), of the guiding tube (63).