Impeller of sewage pump
By designing a diversion system of the water collecting half shell and water filter cover in the sewage pump impeller, the scale problem caused by the sewage pump impeller due to dirt deposition is solved, and effective sewage diversion and normal operation of the impeller are achieved.
Patent Information
- Application Number
- CN202420884596.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-25
AI Technical Summary
During long-term use, sewage pump impellers are prone to scale due to dirt deposition, resulting in poor rotation and lack effective sewage diversion design.
An impeller including a water collecting half shell and a water filter cover is designed. The outer surface of the water collecting half shell is equipped with a diversion pipe and a baffle. The water filter cover has a water divider block to form a sewage diversion path. When the sewage is rotated by a main body of the impeller Being pushed to the side to avoid dirt deposition.
It effectively reduces the scaling phenomenon of sewage impurities on the impeller blades and ensures the normal operation of the impeller.
Smart Images
Figure CN222185198U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of sewage pumps, and in particular relates to an impeller of a sewage pump. Background Art
[0002] The sewage pump is a type of centrifugal impurity pump, which is mainly used to transport urban sewage, feces or liquid containing fibers. The Chinese utility model patent application number CN202220727585.7 discloses a water pump impeller with a guide body. The main components of the sewage pump include a motor, a pump body and an impeller. The motor transmits power to the impeller through a synchronous belt or a coupling. When the motor starts, the impeller starts to rotate, forming a low-pressure area in the pump body, attracting liquid into the pump body, and as the impeller rotates, the liquid is pushed to the outlet of the pump body;
[0003] The impeller of a sewage pump will malfunction after long-term use. One of the common malfunctions is severe scaling of the pump impeller. When the sewage pump is used for a long time, the sewage sucked by the sewage pump directly impacts the center of the impeller. The spiral blades on the surface of the pump impeller are prone to scaling due to dirt deposition, resulting in poor rotation of the pump impeller. When the sewage pump is in use, there is a problem that there is no sewage diversion design on the impeller, resulting in dirt deposition on the spiral blades on the surface of the impeller. For this reason, the present application proposes an impeller for a sewage pump. Utility Model Content
[0004] The utility model aims to provide an impeller for a sewage pump to solve the problem that there is no sewage diversion design on the impeller proposed in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an impeller of a sewage pump, comprising an impeller body connected to the sewage pump shaft, the impeller body comprising an impeller disk, impeller blades and a fixed cylinder, the impeller blades are connected to the center of the impeller disk, the fixed cylinder is spirally distributed on the outer surface of the impeller blades, and also comprises a water collecting half shell and a water filter cover, the water collecting half shell is connected to the impeller blades, the outer surface of the water collecting half shell is provided with evenly distributed diversion pipes, the inner surface of the water collecting half shell is provided with a baffle, the outer surface of the water collecting half shell is provided with a water outlet hole, the water filter cover comprises a fixed part and a water filter part of an integrated structure, and the outer surface of the fixed part is provided with evenly distributed water distribution blocks.
[0006] Preferably, the water collecting half shell and the water filtering cover have the same diameter, and the centers of the water collecting half shell and the water filtering cover, as well as the sewage pump shaft and the impeller blades are on the same axis, and the water collecting half shell and the water filtering cover form a whole spherical structure with a hollow interior.
[0007] Preferably, the baffle is an annular structure, and the cross section of the baffle is a curved shape.
[0008] Preferably, the diversion pipe is in an inclined state, the diversion pipe is connected to the inside of the water collecting half shell, the diversion pipe is a hollow pipe structure with one end wide and the other end narrow, and the wide end of the diversion pipe is fixedly connected to the water collecting half shell.
[0009] Preferably, the water filtering part is in a mesh-like arched shape, the fixing part is in a hollow annular shape, the outer surface of the fixing part is in a curved shape, and the outer diameter of the fixing part is the same as the outer diameter of the water filtering part.
[0010] Preferably, the water dividing block is a semi-elliptical airfoil structure.
[0011] Preferably, the inner area of the water collecting half shell is the water inlet concentration area a, the circular edge area of the impeller disk is the water pushing area b, and the path between the water inlet concentration area a and the water pushing area b is the water splitting flow path c.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] In the utility model, sewage impacts on the water collecting half shell and the water filter cover, part of the sewage is diverted and diffused to the outside, and part of the sewage enters the water collecting half shell, and then the sewage flows to the side area of the impeller disk under the diversion effect of the diversion pipe. As the impeller body rotates, the sewage is pushed to the outlet of the pump body. The impeller body is provided with a sewage diversion design, which makes the sewage flow to the side of the impeller body, thereby reducing the scaling phenomenon of sewage impurities on the impeller blades. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of the utility model;
[0015] Figure 2 It is a side view structural schematic diagram of the water collecting half shell of the utility model;
[0016] Figure 3 It is a schematic cross-sectional structural diagram of the water collecting half shell of the utility model;
[0017] Figure 4 It is a side view structural schematic diagram of the water filter cover of the utility model;
[0018] Figure 5 It is a side view structural diagram of the impeller of the utility model;
[0019] In the figure: 1, sewage pump shaft; 2, impeller body; 3, water collecting half shell; 4, water filter cover; 21, impeller disc; 22, impeller blades; 23, fixing cylinder; 31, diversion pipe; 32, water outlet; 33, baffle; 41, fixing part; 42, water filtering part; 411, water distribution block. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] Example
[0022] See also Figures 1 to 5 The utility model provides a technical solution: an impeller of a sewage pump, comprising an impeller body 2 connected to a sewage pump shaft 1, the impeller body 2 comprising an impeller disk 21, impeller blades 22 and a fixed cylinder 23, the impeller blades 22 are connected to the center position of the impeller disk 21, the fixed cylinder 23 is spirally distributed on the outer surface of the impeller blades 22, and also comprises a water collecting half shell 3 and a water filter cover 4, a motor drives the sewage pump shaft 1 and the impeller body 2 to rotate, the use principle of the sewage pump is a conventional technical method, and this application will not be described in detail, the fixed cylinder 23 is combined with the impeller disk 21 and the impeller blades 22 by a conventional method; the water collecting half shell 3 is connected to the impeller blades 22, the water collecting half shell 3 and the impeller blades 22 are combined by a conventional method, the outer surface of the water collecting half shell 3 is provided with a uniformly distributed shunt pipe 31, the water collecting half shell 3 is connected to the shunt pipe 31, the sewage pump shaft 1 and the impeller body 2 rotate and suck the sewage Water and sewage enter the internal accumulation of the water collecting half shell 3. With the continuous suction and accumulation of sewage, the full sewage is diverted. The sewage flows to the water pushing area b on the side of the impeller disk 21 under the diversion effect of the diversion pipe 31. At the same time, the sewage impacts the water collecting half shell 3 and the water filter cover 4. With the rotation of the impeller body 2, the sewage is diverted and diffused to the outside. The inner surface of the water collecting half shell 3 is provided with a baffle 33. The baffle 33 is connected to the water collecting half shell 3 by a conventional method. The baffle 33 plays a certain water blocking role to prevent sewage backflow. The outer surface of the water collecting half shell 3 is provided with a water outlet hole 32. Under the aperture of the water outlet hole 32, a jet is formed when the sewage passes through the water outlet hole 32, and the sewage flows and diffuses to the outside of the impeller body 2. The water filter cover 4 includes a fixed part 41 and a water filter part 42 of an integrated structure. The outer surface of the fixed part 41 is provided with evenly distributed water diversion blocks 411, and the water diversion blocks 411 have a diversion effect.
[0023] In this embodiment, the diameters of the water collecting half shell 3 and the water filter cover 4 are the same, and the centers of the water collecting half shell 3 and the water filter cover 4, as well as the sewage pump shaft 1 and the impeller blades 22 are on the same axis. The water collecting half shell 3 and the water filter cover 4 form an internal hollow whole spherical structure. The sewage pump shaft 1 and the impeller body 2 rotate and suck sewage, and the sewage impacts the water collecting half shell 3 and the water filter cover 4. Part of the sewage is diverted and diffused to the outside, and part of the sewage enters the interior of the water collecting half shell 3 for accumulation.
[0024] In this embodiment, the baffle 33 is an annular structure, and the cross section of the baffle 33 is a curved shape. The baffle 33 plays a certain role in blocking water, thereby preventing the backflow of agglomerated impurities in the sewage.
[0025] In this embodiment, the diversion pipe 31 is in an inclined state. The diversion pipe 31 can divert sewage so that the sewage flows to the side of the impeller body 2. The diversion pipe 31 is connected to the inside of the water collecting half shell 3. The diversion pipe 31 is a hollow pipe structure with one end wide and the other end narrow. The wide end of the diversion pipe 31 is fixedly connected to the water collecting half shell 3.
[0026] In this embodiment, the water filtering part 42 is a mesh arch shape, the fixed part 41 is a hollow ring shape, the outer surface of the fixed part 41 is curved, the outer diameter of the fixed part 41 is the same as the outer diameter of the water filtering part 42, and the water dividing block 411 is a semi-elliptical wing structure. The sewage pump shaft 1 and the impeller body 2 rotate and suck the sewage. The sewage impacts the water collecting half shell 3 and the water filtering cover 4, and part of the sewage is diverted and diffused to the outside, and the water dividing block 411 diverts the sewage.
[0027] In this embodiment, the internal area of the water collecting half shell 3 is the water inlet concentration area a, the circular edge area of the impeller disk 21 is the water pushing area b, the path between the water inlet concentration area a and the water pushing area b is the water diversion flow path c, the sewage pump shaft 1 and the impeller body 2 rotate and suck the sewage, and the sewage enters the water inlet concentration area a in the water collecting half shell 3 and accumulates. With the continuous suction and accumulation of sewage, the full sewage is diverted along the water diversion flow path c. The sewage flows to the water pushing area b on the side of the impeller disk 21 under the diversion action of the diversion pipe 31. As the impeller body 2 rotates, the sewage is pushed to the outlet of the pump body.
[0028] The working principle and use process of this utility model:
[0029] When the motor drives the impeller to suck sewage, the sewage pump shaft 1 and the impeller body 2 rotate and suck sewage, and the sewage impacts the water collecting half shell 3 and the water filter cover 4. Part of the sewage is diverted and diffused to the outside, and at the same time, part of the sewage enters the water inlet concentration area a in the water collecting half shell 3 for accumulation. With the continuous suction and accumulation of sewage, the full sewage is diverted along the water diversion flow path c. The sewage flows to the water pushing area b on the side of the impeller disk 21 under the diversion action of the diversion pipe 31. With the rotation of the impeller body 2, the sewage is pushed to the outlet of the pump body. The impeller body 2 is provided with a sewage diversion design to make the sewage flow to the side of the impeller body 2, thereby reducing the scaling of sewage impurities on the impeller blades 22.
[0030] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An impeller for a sewage pump, comprising an impeller body (2) connected to a sewage pump shaft (1), the impeller body (2) comprising an impeller disk (21), impeller blades (22) and a fixing cylinder (23), the impeller blades (22) being connected to the center of the impeller disk (21), and the fixing cylinder (23) being spirally distributed on the outer surface of the impeller blades (22), characterized in that: It also comprises a water collecting half shell (3) and a water filtering cover (4), wherein the water collecting half shell (3) is connected to the impeller blades (22), the outer surface of the water collecting half shell (3) is provided with evenly distributed diversion pipes (31), the inner surface of the water collecting half shell (3) is provided with a baffle (33), the outer surface of the water collecting half shell (3) is provided with a water outlet hole (32), and the water filtering cover (4) comprises a fixed part (41) and a water filtering part (42) of an integrated structure, and the outer surface of the fixed part (41) is provided with evenly distributed water diversion blocks (411).
2. The impeller of a sewage pump according to claim 1, characterized in that: The water collecting half shell (3) and the water filtering cover (4) have the same diameter, the water collecting half shell (3) and the water filtering cover (4), as well as the centers of the sewage pump shaft (1) and the impeller blades (22) are located on the same axis, and the water collecting half shell (3) and the water filtering cover (4) form a hollow full spherical structure.
3. The impeller of a sewage pump according to claim 1, characterized in that: The baffle (33) is an annular structure, and the cross section of the baffle (33) is a curved shape.
4. The impeller of a sewage pump according to claim 1, characterized in that: The diversion pipe (31) is in an inclined state, the diversion pipe (31) is connected to the inside of the water collecting half shell (3), the diversion pipe (31) is a hollow pipe structure with one end wide and the other end narrow, and the wide end of the diversion pipe (31) is fixedly connected to the water collecting half shell (3).
5. The impeller of a sewage pump according to claim 1, characterized in that: The water filtering portion (42) is in a mesh-like arched shape, the fixing portion (41) is in a hollow annular shape, the outer surface of the fixing portion (41) is in a curved shape, and the outer diameter of the fixing portion (41) is the same as the outer diameter of the water filtering portion (42).
6. The impeller of a sewage pump according to claim 1, characterized in that: The water dividing block (411) is a semi-elliptical airfoil structure.
7. The impeller of a sewage pump according to claim 1, characterized in that: The water collection half The inner area of the shell (3) is the water inlet concentration area a, and the circular edge area of the impeller disk (21) is the water pushing area b. The path between the water inlet concentration area a and the water pushing area b is the water diversion flow path c.