Submersible sewage draining centrifugal pump with built-in crushing assembly

Abstract

The invention discloses a submersible sewage draining centrifugal pump with a built-in crushing assembly, and relates to the technical field of submersible sewage draining centrifugal pumps, the submersible sewage draining centrifugal pump comprises a centrifugal pump shell, a water inlet, a water outlet, a rotating inner cavity and an impeller, the water inlet, the water outlet and the rotating inner cavity are formed in the centrifugal pump shell, and the water inlet, the water outlet and the interior of the rotating inner cavity are communicated; the two crushing plates make contact with each other to crush branches and leaves, the first crushing plate makes contact with the first filter plate to crush the branches and leaves, and the second crushing plate makes contact with the second filter plate to crush the branches and leaves, so that the branches and leaves in the centrifugal pump are crushed more thoroughly; a back-and-forth shearing plate can make a second shearing opening and a second reserved groove cut back and forth, so that branches and leaves are preliminarily cut off through the cutting opening, crushing of a crushing plate in the later period is facilitated, when the centrifugal pump works, a crushing structure and a shearing structure work synchronously, sludge on the surface of a filter plate is cleaned by a cleaning plate, and therefore flowing of liquid from the filter plate is not affected.

Description

Technical Field

[0001] The invention relates to the technical field of submersible sewage centrifugal pumps, in particular to a submersible sewage centrifugal pump with a built-in crushing component. Background Art

[0002] In the fields of modern industrial production, agricultural irrigation, municipal engineering, etc., sewage centrifugal pump is a pump product specially used for conveying sewage containing solid particles, suspended matter or fibrous impurities. This type of pump is usually designed with strong self-priming performance and can efficiently handle various complex sewage discharge tasks. The motor and water pump of the submersible sewage pump are coaxial and integrated into the medium to work, and have strong corrosion resistance. The sewage centrifugal pump is an ideal equipment for treating sewage discharge and has broad application prospects and market demand;

[0003] In the prior art, when the submersible sewage centrifugal pump is in use, sewage enters from the water inlet of the centrifugal pump. Since there are some impurities such as leaves or branches in the sewage, when the sewage centrifugal pump treats sewage containing impurities such as branches, leaves, and mud, the branches and other long fiber materials are easily entangled in the impeller, causing the impeller to rotate obstructed and the flow rate to decrease. In severe cases, the pump may even stop working. The branches and leaves will wear the impeller surface during the high-speed rotation inside the pump, and the mud will be deposited inside the pump, which may cause blockage of the flow channel, reduce the flow area, increase the load of the pump, and even make the pump unable to start in severe cases. Summary of the invention

[0004] The object of the present invention is to provide a submersible sewage centrifugal pump with a built-in crushing assembly to solve the problems raised in the above background technology.

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

[0006] A submersible sewage centrifugal pump with a built-in crushing component comprises a centrifugal pump housing, a water inlet, a water outlet, a rotating inner cavity and an impeller, wherein the water inlet, the water outlet and the rotating inner cavity are arranged inside the centrifugal pump housing, and the water inlet, the water outlet and the interior of the rotating inner cavity are connected, the impeller is arranged inside the centrifugal pump housing, a driving motor is arranged at the top of the centrifugal pump housing, and the output end of the driving motor is connected to the impeller; a crushing structure for branches and leaves is arranged inside the water inlet, and the crushing structure comprises a rotating shaft 1 and a rotating shaft 2, and the rotating shaft 1 and the rotating shaft 2 are both arranged horizontally It is placed inside the centrifugal pump casing, and the cylindrical surface of the rotating shaft one is welded with a plurality of rotating blades one and a crushing plate one inside the water inlet, and the cylindrical surface of the rotating shaft two is welded with a plurality of rotating blades two and a crushing plate two inside the water inlet. The rotation direction of the rotating shaft one is opposite to the rotation direction of the rotating shaft two, the rotation range of the crushing plate one is tangent to the rotation range of the crushing plate two, and the edge of the crushing plate one is intermittently in contact with the edge of the crushing plate two. The crushing plate one and the crushing plate two are used to crush branches and leaves entering the water inlet, and the rotating blade one and the crushing plate two are driven to rotate by water flow.

[0007] As a preferred technical solution of the present invention, the shape of the edge of crushing plate one is adapted to the shape of the inner wall of the water inlet, and the shape of the edge of crushing plate two is adapted to the shape of the inner wall of the water inlet, and the number of crushing plate one and crushing plate two is two, the two crushing plate ones are located in the same plane, and the crushing plate twos are located in the same plane.

[0008] As a preferred technical solution of the present invention, filter plate one and filter plate two are welded to the inner wall of the water inlet, and the bottom edge of filter plate two corresponds to the position of rotating blade two, the top edge of filter plate one corresponds to the position of rotating blade one, and filter plate one and filter plate two are arranged in an eight-shaped shape. Filter plate one and filter plate two are used to guide branches and leaves inside the water inlet, and the edges of the two crushing plates one are intermittently in contact with the edge of filter plate one, and the edges of the two crushing plates two are intermittently in contact with the edge of filter plate two.

[0009] As a preferred technical solution of the present invention, the edges of the filter plate 1 and the crushing plate 1, the edges of the filter plate 2 and the crushing plate 2 are provided with a shear structure, the shear structure includes a toggle block and two shear plates, the toggle block is welded to the edges of the two crushing plates 1 and the edges of the two crushing plates 2, the two shear plates are respectively arranged at the edges of the filter plate 1 and the edges of the filter plate 2, a reserved groove 1 is provided at the edges of the filter plate 1 and the filter plate 2, a reserved hole 1 is provided at the edge of the shear plate, and the reserved hole 1 of the shear plate is connected to the inside of the reserved groove 1 through a fastening bolt, two contact blocks are welded on both sides of the edge of the shear plate, the position of the toggle block corresponds to that of the contact block, the shear plate is reciprocatingly slidably connected to the filter plate 1, the shear plate is reciprocatingly slidably connected to the filter plate 2, the edge of the filter plate 1 and the edge of the filter plate 2 are provided with a shear cut 2, and the edges of the two shear plates are provided with a shear cut 1.

[0010] As a preferred technical solution of the present invention, the edges of the two crushing plates one and the two crushing plates two are provided with a matching groove and a reserved groove two, and the matching groove is located on one side of the toggle block, the two contact blocks respectively correspond to the positions of the matching groove and the reserved groove two, the spacing between the matching groove and the reserved groove two is adapted to the spacing between the two contact blocks of the shear plate, and the toggle block of the crushing plate one and the toggle block of the crushing plate two are arranged alternately.

[0011] As a preferred technical solution of the present invention, when the toggle block of crushing plate one and the toggle block of crushing plate two are in contact, the two toggle blocks are staggered, the two toggle blocks of crushing plate one correspond to the reserved groove two of crushing plate two, and the two toggle blocks of crushing plate two correspond to the reserved groove two of crushing plate one.

[0012] As a preferred technical solution of the present invention, when the crushing plate 1 and the filter plate 1 are in contact, the toggle block of one crushing plate 1 is slidably connected to one of the contact blocks of the shear plate, and the toggle block of the other crushing plate 1 is slidably connected to the other contact block of the shear plate.

[0013] As a preferred technical solution of the present invention, when the crushing plate 2 and the filter plate 2 are in contact, the toggle block of one of the crushing plates 2 is slidably connected to one of the contact blocks of the shear plate, and the toggle block of the other crushing plate 2 is slidably connected to the other contact block of the shear plate.

[0014] As a preferred technical solution of the present invention, the surface of the filter plate one and the surface of the filter plate two are both provided with a cleaning structure, and the cleaning structure includes a cleaning plate, which is respectively arranged on the surface of the filter plate one and the surface of the filter plate two, and a reserved hole two is opened on the edge of the cleaning plate, and the fastening bolt passes through the reserved hole one, the reserved groove one and the reserved hole two, the cleaning plate and the shear plate move synchronously, and a reserved groove three is opened on the surface of the cleaning plate, and a protruding piece is arranged on the edge of the reserved groove three, and the protruding piece is in contact with the filter plate one and the filter plate two.

[0015] As a preferred technical solution of the present invention, the shapes of the filter plate one and the filter plate two are respectively adapted to the shapes of the two cleaning plates, and the reserved grooves three of the cleaning plates are arranged in an alternating manner, and the length of the reserved groove one is adapted to the spacing between two adjacent reserved grooves three.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] A crushing structure is provided, and the water flow drives two rotating blades. The two crushing plates contact each other to crush the branches and leaves. The crushing plate 1 contacts the filter plate 1 to crush the branches and leaves. The crushing plate 2 contacts the filter plate 2 to crush the branches and leaves, so that the branches and leaves in the centrifugal pump are crushed more thoroughly.

[0018] The two filter plates of the crushing structure have filter holes that facilitate the flow of liquid and can guide the branches and leaves between the rotating shafts, so that the branches and leaves can pass between the two rotating shafts, which helps the branches and leaves to be crushed by the crushing plates;

[0019] A shearing structure is provided, and the rotating crushing plate can toggle the two contact blocks of the shearing plate, and the back-and-forth shearing plate can make the shearing opening 2 and the reserved groove 2 cut back and forth, so that the cutting opening can preliminarily cut off the branches and leaves, which is convenient for the crushing plate to crush later. When the centrifugal pump is working, the crushing structure and the shearing structure work synchronously;

[0020] A cleaning structure is provided, and the movement of the shear plate can drive the cleaning plate to move, so that the surfaces of the two filter plates can be cleaned, and the sludge on the surface of the filter plate is cleaned by the cleaning plate, so that it will not affect the flow of liquid through the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0022] Figure 1 It is the main structure diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the interior of the centrifugal pump housing of the present invention;

[0024] Figure 3 It is a schematic diagram of the crushing structure of the present invention;

[0025] Figure 4 It is a schematic diagram of a crushing plate 1 and a crushing plate 2 of the present invention;

[0026] Figure 5 It is a schematic diagram of the shearing structure of the present invention;

[0027] Figure 6It is a schematic diagram of the contact state between the crushing plate 1 and the guide plate 1 of the present invention;

[0028] Figure 7 It is a schematic diagram of the contact state between the second crushing plate and the second guide plate of the present invention;

[0029] Figure 8 It is a schematic diagram of the cleaning structure of the present invention;

[0030] Fig. 9 It is a schematic diagram of the protruding piece of the present invention.

[0031] In the figure: 1. centrifugal pump housing; 2. driving motor; 3. water inlet; 4. water outlet; 5. crushing structure; 6. rotating inner cavity; 7. impeller; 8. shearing structure; 9. cleaning structure; 51. rotating shaft one; 52. rotating shaft two; 53. rotating blade one; 54. rotating blade two; 55. filter plate one; 56. filter plate two; 57. crushing plate one; 58. crushing plate two; 81. toggle block; 82. contact block; 83. shearing plate; 84. matching groove; 85. reserved groove one; 86. reserved hole one; 87. fastening bolt; 88. shearing notch one; 89. shearing notch two; 810. reserved groove two; 91. cleaning plate; 92. reserved hole two; 93. reserved groove three; 94. protruding piece. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1:

[0034] See also Figure 1 - Figure 3As shown, a submersible sewage centrifugal pump with a built-in crushing component includes a centrifugal pump housing 1, a water inlet 3, a water outlet 4, a rotating inner cavity 6 and an impeller 7. The water inlet 3, the water outlet 4 and the rotating inner cavity 6 are opened inside the centrifugal pump housing 1, and the water inlet 3, the water outlet 4 and the interior of the rotating inner cavity 6 are connected. The centrifugal pump is placed in water, and water flows from the water inlet 3 and the interior of the rotating inner cavity 6, and the liquid is discharged from the interior of the water outlet 4, so that the liquid can be transported. The impeller 7 is arranged inside the centrifugal pump housing 1, and a driving motor is arranged at the top of the centrifugal pump housing 1. The centrifugal pump 2 is provided with a motor 2, and the output end of the drive motor 2 is connected to the impeller 7, and the drive motor 2 is used to drive the impeller 7 to rotate, so as to transport the liquid inside the centrifugal pump housing 1; a crushing structure 5 for branches and leaves is arranged inside the water inlet 3, and the crushing structure 5 includes a rotating shaft 1 51 and a rotating shaft 2 52, and the rotating shaft 1 51 and the rotating shaft 2 52 are both arranged transversely inside the centrifugal pump housing 1, and the rotating shaft 1 51 and the rotating shaft 2 52 are located inside the centrifugal pump housing 1 for rotation, and a plurality of rotating shafts are welded on the cylindrical surface of the rotating shaft 1 and located inside the water inlet 3. The moving blades 53 and the crushing plate 57 are rotated under the push of the water flow. The cylindrical surface of the rotating shaft 52 is welded with a plurality of rotating blades 54 and crushing plates 58 inside the water inlet 3. The rotating blades 54 and the crushing plates 58 are rotated under the push of the water flow. The rotating direction of the rotating shaft 51 is opposite to that of the rotating shaft 52. The rotation range of the crushing plate 57 is tangent to that of the crushing plate 58. The edge of the crushing plate 1 57 is in intermittent contact with the edge of the crushing plate 2 58, so that the branches and leaves in the water flow enter the crushing plates 1 57 and 58 along with the water flow, so that the crushing plates 1 57 and 58 can crush the branches and leaves. The crushing plates 1 57 and 58 are used to crush the branches and leaves entering the water inlet 3. The rotating blades 1 53 and the crushing plate 2 58 are driven by the water flow to rotate. As long as the impeller 7 rotates, the rotating blades 1 53 and the crushing plate 2 58 can be driven to rotate. Therefore, the flow of water will break the branches and leaves in the water flow.

[0035] See also Figure 3 and Figure 4As shown, the shape of the edge of the crushing plate 1 57 is adapted to the shape of the inner wall of the water inlet 3, and the shape of the edge of the crushing plate 2 58 is adapted to the shape of the inner wall of the water inlet 3. The shape of the crushing plate 1 57 and the shape of the crushing plate 2 58 will not be interfered by the inner wall of the water inlet 3 when rotating, and the number of crushing plates 1 57 and the number of crushing plates 2 58 are both two, the two crushing plates 1 57 are located in the same plane, and the crushing plates 2 58 are located in the same plane. When the crushing plates 1 57 and the crushing plates 2 58 are rotated, the edges of the crushing plates 1 57 and the crushing plates 2 58 can be in contact with each other, and after the crushing plates 1 57 and the crushing plates 2 58 are rotated half a circle, the other group of crushing plates 1 57 and the crushing plates 2 58 are in contact again, so that the crushing plates 1 57 and the crushing plates 2 58 are used to crush the branches and leaves in the water flow when they are in contact, and the crushed branches and leaves are discharged from the water outlet 4 and are not easily accumulated inside the rotating inner cavity 6.

[0036] See also Figure 4 As shown, filter plate 1 55 and filter plate 2 56 are welded to the inner wall of the water inlet 3, and the bottom edge of filter plate 2 56 corresponds to the position of rotating blade 2 54, and the top edge of filter plate 1 55 corresponds to the position of rotating blade 1 53. Filter plate 1 55 and filter plate 2 56 are arranged in an eight-shaped shape, and water flow can flow through filter plate 1 55 and filter plate 2 56. Branches and leaves in the water flow are guided from filter plate 1 55 and filter plate 2 56 so that the branches and leaves enter between rotating shaft 1 51 and rotating shaft 2 52. Filter plate 1 55 and filter plate 2 56 are used to guide branches and leaves inside the water inlet 3. The edges of two crushing plates 1 57 are in intermittent contact with the edges of filter plate 1 55, and the edges of two crushing plates 2 58 are in intermittent contact with the edges of filter plate 2 56. The edge of crushing plate 2 58 contacts with filter plate 2 56 to crush the branches and leaves. Similarly, the edge of crushing plate 1 57 contacts with filter plate 1 55 to crush the branches and leaves.

[0037] It should be noted that starting the drive motor 2 causes the drive motor 2 to drive the impeller 7 inside the rotating inner cavity 6 to rotate, so that water can be sucked in from the water inlet 3 of the centrifugal pump housing 1 and then discharged from the water outlet 4 of the centrifugal pump housing 1. During this period, the water flow drives the rotating blades 1 53 and the rotating blades 2 54 to rotate, and the crushing plate 1 57 rotates along with the rotating blades 1 53, and the crushing plate 2 58 rotates along with the rotating blades 2 54. The directions of rotation of the rotating shaft 1 51 and the rotating shaft 2 52 are opposite. When branches and leaves enter the filter plates 1 55 and 2 56 from the filter plates 1 55 and 2 56, the filter plates 2 56 and the crushing plate 1 57 are in contact with each other to crush the branches and leaves. Similarly, the crushing plate 1 57 can crush the branches and leaves when it contacts the filter plates 1 55, and the crushing plate 2 58 can also crush the branches and leaves when it contacts the filter plates 2 56.

[0038] See also Figure 2and Figure 5 As shown, the edges of the filter plate 1 55 and the crushing plate 1 57, the edges of the filter plate 2 56 and the crushing plate 2 58 are provided with a shearing structure 8, and the shearing structure 8 is used to cut some branches and leaves back and forth. The shearing structure 8 includes a toggle block 81 and two shearing plates 83, the toggle block 81 is welded to the edges of the two crushing plates 1 57 and the edges of the two crushing plates 2 58, the toggle block 81 rotates with the crushing plates 1 57 and the crushing plates 2 58, the two shearing plates 83 are respectively arranged on the edges of the filter plate 1 55 and the edges of the filter plate 2 56, a reserved groove 1 85 is provided at the edges of the filter plate 1 55 and the filter plate 2 56, a reserved hole 1 86 is provided at the edge of the shearing plate 83, and the reserved hole 1 86 of the shearing plate 83 is connected to the inside of the reserved groove 1 85 by a fastening bolt 87, and the fastening bolt 87 runs through the inside of the reserved hole 1 86 and the reserved groove 1 85, so as to shear. The cutting plate 83 slides along the inside of the reserved groove 85 with the fastening bolt 87. Two contact blocks 82 are welded on both sides of the edge of the shear plate 83. The position of the toggle block 81 corresponds to the position of the contact block 82, and the shear plate 83 is reciprocatingly slidably connected to the filter plate 1 55, and the shear plate 83 is reciprocatingly slidably connected to the filter plate 2 56. When the crushing plate 1 57 and the crushing plate 2 58 rotate, the toggle block 81 can be driven to rotate, so that when the toggle block 81 of the crushing plate 1 57 contacts with the contact block 82, and when the crushing plate 2 58 and the toggle block 81 contact with the contact block 82, the two shear plates 83 can be pushed, and the edges of the filter plate 1 55 and the edges of the filter plate 2 56 are both provided with a shear cut 89, and the edges of the two shear plates 83 are both provided with a shear cut 88. The shear plates 83 moving back and forth can cut the branches and leaves back and forth, so that the branches and leaves can be crushed more thoroughly.

[0039] See also Figure 5 - Figure 7 As shown, the edges of the two crushing plates 1 57 and the two crushing plates 2 58 are provided with matching grooves 84 and reserved grooves 2 810, and the matching groove 84 is located on one side of the toggle block 81. When the crushing plates 1 57 and the crushing plates 2 58 are in contact with the shear plate 83, the contact block 82 can be detached from the matching groove 84 when the toggle block 81 and the contact block 82 slide. The two contact blocks 82 correspond to the positions of the matching groove 84 and the reserved grooves 2 810 respectively. The spacing between the matching grooves 84 and the reserved grooves 2 810 is adapted to the spacing between the two contact blocks 82 of the shear plate 83, and the toggle block 81 of the crushing plate 1 57 is staggered with the toggle block 81 of the crushing plate 2 58. When the crushing plates 1 57 and the crushing plates 2 58 are in contact, one contact block 82 of the crushing plate 1 57 is detached from a reserved groove 2 810 of the crushing plate 2 58, and the other contact block 82 of the crushing plate 1 57 is detached from the matching groove 84. Similarly, the two contact blocks 82 of the crushing plate 2 58 are also in the same way.

[0040] See also Figure 5 - Figure 7As shown, when the toggle block 81 of the crushing plate 1 57 and the toggle block 81 of the crushing plate 2 58 are in contact, the two toggle blocks 81 are staggered, that is, when the crushing plate 1 57 and the crushing plate 2 58 are in contact, the two toggle blocks 81 are respectively located on both sides to avoid interference caused by the two toggle blocks 81 being located at the same place. The toggle blocks 81 of the two crushing plates 57 correspond to the reserved groove 2 810 of the crushing plate 2 58, and the toggle blocks 81 of the two crushing plates 58 correspond to the reserved groove 2 810 of the crushing plate 1 57. One toggle block 81 of the crushing plate 1 57 passes smoothly from the reserved groove 2 810 of the crushing plate 2 58, and similarly, the other toggle block 81 of the crushing plate 2 58 passes smoothly from the matching groove 84 of the crushing plate 1 57.

[0041] See also Figure 5 - Figure 7 As shown, when the crushing plate 57 and the filter plate 55 are in contact, the toggle block 81 of one of the crushing plates 57 is slidably connected to one of the contact blocks 82 of the shear plate 83, and the toggle block 81 of the other crushing plate 57 is slidably connected to the other contact block 82 of the shear plate 83. One toggle block 81 of one crushing plate 57 toggles the contact block 82 of the filter plate 55, and then the other toggle block 81 of the other crushing plate 57 is used to toggle the other contact block 82 of the filter plate 55, so that the shear plate 83 is moved back and forth by the two contact blocks 82, so that the shear plate 83 can cut branches and leaves.

[0042] See also Figure 5 - Figure 7 As shown, when the crushing plate 58 and the filter plate 56 are in contact, the toggle block 81 of one crushing plate 58 is slidably connected with one of the contact blocks 82 of the shear plate 83, and the toggle block 81 of the other crushing plate 58 is slidably connected with the other contact block 82 of the shear plate 83. When the crushing plate 58 and the filter plate 56 are in contact, one toggle block 81 of the crushing plate 58 can be in contact with one contact block 82 of the filter plate 56, and the shear plate 83 can be toggled back and forth by toggling the other toggle block 81 of the crushing plate 58 with the other contact block 82 of the filter plate 56.

[0043] It should be noted that when the crushing plates 1 57 and 2 58 rotate, one crushing plate 1 57 contacts one of the crushing plates 2 58, so that one toggle block 81 of the crushing plate 1 57 is aligned with the reserved groove 2 810 of the crushing plate 2 58, so that the toggle block 81 passes smoothly, and the crushing plates 1 57 and 2 58 continue to rotate, and another toggle block 81 of the other crushing plate 1 57 is aligned with the matching groove 84 of the other crushing plate 2 58, so that the toggle block 81 passes smoothly, so that the crushing plates 1 57 and 2 58 do not affect each other when they rotate, and when the crushing plate 1 57 contacts the filter plate 1 55, one crushing plate 1 57 can be moved. The toggle block 81 of one crushing plate 57 contacts with the contact block 82 at the filter plate 1 55, and the toggle block 81 of another crushing plate 57 contacts with the other contact block 82 of the filter plate 1 55. The two toggle blocks 81 can toggle the contact block 82 of the shear plate 83. Similarly, the toggle block 81 of one crushing plate 58 contacts with a contact block 82 of the filter plate 2 56, and the toggle block 81 of the other crushing plate 58 contacts with the other contact block 82 of the filter plate 2 56, thereby swinging the shear plate 83 of the filter plate 2 56 back and forth, and the branches and leaves between the filter plate 1 55 and the crushing plate 1 57, and between the filter plate 2 56 and the crushing plate 2 58 can be crushed.

[0044] See also Figure 2 , Figure 8 and Fig. 9 As shown, the surfaces of the filter plate 1 55 and the filter plate 2 56 are both provided with a cleaning structure 9, and the cleaning structure 9 includes a cleaning plate 91, which is respectively provided on the surfaces of the filter plate 1 55 and the filter plate 2 56, and a reserved hole 2 92 is provided at the edge of the cleaning plate 91, and a fastening bolt 87 passes through the reserved hole 1 86, the reserved groove 1 85 and the reserved hole 2 92, and the cleaning plate 91 and the shear plate 83 are located at both ends of the fastening bolt 87, so that the cleaning plate 91 and the shear plate 83 can be moved synchronously. , and the cleaning plate 91 and the shear plate 83 move along the inside of the reserved groove 85, the surface of the cleaning plate 91 is provided with a reserved groove 93, and the edge of the reserved groove 93 is provided with a protruding piece 94, and the protruding piece 94 is in contact with the filter plate 1 55 and the filter plate 2 56. When the shear plate 83 moves, the cleaning plate 91 also moves, so that the protruding piece 94 of the cleaning plate 91 can clean the surface of the filter plate 1 55 or the filter plate 2 56, ensuring that the water flow can flow normally through the inside of the filter plate 1 55 and the filter plate 2 56.

[0045] See also Figure 8 and Fig. 9As shown, the shapes of filter plate one 55 and filter plate two 56 are respectively adapted to the shapes of the two cleaning plates 91, and the reserved slots three 93 of the cleaning plates 91 are arranged in a staggered manner. The length of the reserved slot one 85 is adapted to the spacing between two adjacent reserved slots three 93. When the cleaning plate 91 moves, the protruding piece 94 can move the filter plate one 55 or the filter plate two 56 to reduce the area that the protruding piece 94 cannot clean.

[0046] It should be noted that when the shear plate 83 of the filter plate 2 56 and the crushing plate 1 57 moves back and forth, since the shear plate 83 and the cleaning plate 91 move synchronously, the moving cleaning plate 91 can clean the silt and the like on the surface of the cleaning plate 91, thereby ensuring that the water flows normally through the surface of the filter plate 1 55 and the filter plate 2 56.

[0047] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A submersible sewage centrifugal pump with a built-in crushing component, comprising a centrifugal pump housing (1), a water inlet (3), a water outlet (4), a rotating inner cavity (6) and an impeller (7), wherein the water inlet (3), the water outlet (4) and the rotating inner cavity (6) are arranged inside the centrifugal pump housing (1), and the water inlet (3), the water outlet (4) and the interior of the rotating inner cavity (6) are connected, the impeller (7) is arranged inside the centrifugal pump housing (1), a driving motor (2) is arranged at the top end of the centrifugal pump housing (1), and the output end of the driving motor (2) is connected to the impeller (7); characterized in that: A crushing structure (5) for branches and leaves is arranged inside the water inlet (3), and the crushing structure (5) comprises a first rotating shaft (51) and a second rotating shaft (52), and the first rotating shaft (51) and the second rotating shaft (52) are both arranged transversely inside the centrifugal pump housing (1), and a plurality of first rotating blades (53) and a crushing plate (57) are welded on the cylindrical surface of the first rotating shaft (51) and located inside the water inlet (3), and a plurality of first rotating blades (53) and a crushing plate (57) are welded on the cylindrical surface of the second rotating shaft (52) and located inside the water inlet (3). Rotating blade 2 (54) and crushing plate 2 (58), the rotation direction of rotating shaft 1 (51) is opposite to the rotation direction of rotating shaft 2 (52), the rotation range of crushing plate 1 (57) is tangent to the rotation range of crushing plate 2 (58), and the edge of crushing plate 1 (57) is in intermittent contact with the edge of crushing plate 2 (58), crushing plate 1 (57) and crushing plate 2 (58) are used to crush branches and leaves entering the water inlet (3), and the rotating blade 1 (53) and crushing plate 2 (58) are used to be driven by water flow to rotate.

2. A submersible sewage centrifugal pump with a built-in crushing assembly according to claim 1, characterized in that: The shape of the edge of the crushing plate 1 (57) is compatible with the shape of the inner wall of the water inlet (3), and the shape of the edge of the crushing plate 2 (58) is compatible with the shape of the inner wall of the water inlet (3), and the number of crushing plates 1 (57) and 2 (58) is two, and the two crushing plates 1 (57) are located in the same plane, and the crushing plates 2 (58) are located in the same plane.

3. A submersible sewage centrifugal pump with a built-in crushing assembly according to claim 2, characterized in that: The inner wall of the water inlet (3) is welded with a filter plate 1 (55) and a filter plate 2 (56), and the bottom edge of the filter plate 2 (56) corresponds to the position of the rotating blade 2 (54), and the top edge of the filter plate 1 (55) corresponds to the position of the rotating blade 1 (53). The filter plate 1 (55) and the filter plate 2 (56) are arranged in an eight-shaped shape. The filter plate 1 (55) and the filter plate 2 (56) are used to guide branches and leaves inside the water inlet (3). The edges of the two crushing plates 1 (57) are intermittently in contact with the edges of the filter plate 1 (55), and the edges of the two crushing plates 2 (58) are intermittently in contact with the edges of the filter plate 2 (56).

4. A submersible sewage centrifugal pump with a built-in crushing assembly according to claim 3, characterized in that: The edges of the filter plate 1 (55) and the crushing plate 1 (57), and the edges of the filter plate 2 (56) and the crushing plate 2 (58) are provided with a shearing structure (8), and the shearing structure (8) comprises a toggle block (81) and two shearing plates (83), the toggle block (81) is welded to the edges of the two crushing plates 1 (57) and the two crushing plates 2 (58), the two shearing plates (83) are respectively provided at the edges of the filter plate 1 (55) and the edges of the filter plate 2 (56), a reserved groove 1 (85) is provided at the edges of the filter plate 1 (55) and the filter plate 2 (56), and a shearing plate (83) is provided at the edges of the filter plate 1 (55) and the filter plate 2 (56). A reserved hole (86) is provided, and the reserved hole (86) of the shear plate (83) is connected to the inside of the reserved groove (85) by a fastening bolt (87), two contact blocks (82) are welded on both sides of the edge of the shear plate (83), the position of the toggle block (81) corresponds to the position of the contact block (82), and the shear plate (83) is reciprocatingly slidably connected to the filter plate (55), and the shear plate (83) is reciprocatingly slidably connected to the filter plate (56), the edge of the filter plate (55) and the edge of the filter plate (56) are both provided with a shear cutout (89), and the edges of the two shear plates (83) are both provided with a shear cutout (88).

5. A submersible sewage centrifugal pump with a built-in crushing assembly according to claim 4, characterized in that: The edges of the two crushing plates (57) and the two crushing plates (58) are both provided with a matching groove (84) and a reserved groove (810), and the matching groove (84) is located on one side of the toggle block (81), and the two contact blocks (82) correspond to the positions of the matching groove (84) and the reserved groove (810), respectively, and the spacing between the matching groove (84) and the reserved groove (810) is adapted to the spacing between the two contact blocks (82) of the shear plate (83), and the toggle block (81) of the crushing plate (57) and the toggle block (81) of the crushing plate (58) are arranged alternately.

6. A submersible sewage centrifugal pump with a built-in crushing assembly according to claim 5, characterized in that: When the toggle block (81) of the crushing plate one (57) and the toggle block (81) of the crushing plate two (58) are in contact, the two toggle blocks (81) are staggered, the two toggle blocks (81) of the crushing plate one (57) correspond to the reserved groove two (810) of the crushing plate two (58), and the two toggle blocks (81) of the crushing plate two (58) correspond to the reserved groove two (810) of the crushing plate one (57).

7. A submersible sewage centrifugal pump with a built-in crushing assembly according to claim 5, characterized in that: When the crushing plate 1 (57) and the filter plate 1 (55) are in contact, the toggle block (81) of one crushing plate 1 (57) is slidably connected to one of the contact blocks (82) of the shear plate (83), and the toggle block (81) of the other crushing plate 1 (57) is slidably connected to the other contact block (82) of the shear plate (83).

8. The submersible sewage centrifugal pump with a built-in crushing assembly according to claim 5, characterized in that: When the crushing plate 2 (58) and the filter plate 2 (56) are in contact, the toggle block (81) of one crushing plate 2 (58) is slidably connected to one of the contact blocks (82) of the shear plate (83), and the toggle block (81) of the other crushing plate 2 (58) is slidably connected to the other contact block (82) of the shear plate (83).

9. A submersible sewage centrifugal pump with a built-in crushing assembly according to any one of claims 6 to 8, characterized in that: The surfaces of the first filter plate (55) and the second filter plate (56) are both provided with a cleaning structure (9), the cleaning structure (9) comprising a cleaning plate (91), the cleaning plate (91) being respectively provided on the surfaces of the first filter plate (55) and the second filter plate (56), the edge of the cleaning plate (91) being provided with a reserved hole (92), and the fastening bolt (87) passing through the reserved hole (86), the reserved groove (85) and the reserved hole (92), the cleaning plate (91) and the shear plate (83) move synchronously, the surface of the cleaning plate (91) being provided with a reserved groove (93), and the edge of the reserved groove (93) being provided with a protruding piece (94), and the protruding piece (94) being in contact with the first filter plate (55) and the second filter plate (56).

10. A submersible sewage centrifugal pump with a built-in crushing assembly according to claim 9, characterized in that: The shapes of the filter plate 1 (55) and the filter plate 2 (56) are respectively adapted to the shapes of the two cleaning plates (91), and the reserved slots 3 (93) of the cleaning plates (91) are arranged in a staggered manner, and the length of the reserved slot 1 (85) is adapted to the spacing between two adjacent reserved slots 3 (93).

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