Centrifugal water pump capable of reducing blockage

Abstract

The utility model relates to the technical field of water pumps, in particular to a centrifugal water pump capable of reducing blockage, which comprises a water pump body and a motor for driving the water pump body to rotate, the water pump body comprises a pump shell and a rotating shaft penetrating through the pump shell, the pump shell is connected with a water outlet pipe, and the outer circle of the rotating shaft is sleeved with an impeller assembly. The impeller assembly is located in an inner cavity of the pump shell, one end of the pump shell is connected with a circular pipe concentric with the rotating shaft, the outer end of the circular pipe is connected with a transition smashing pipe body, the inner diameter of the transition smashing pipe body is larger than that of the circular pipe, the outer circle of the rotating shaft is rotationally connected with a hollowed-out supporting seat assembly, and the hollowed-out supporting seat assembly is connected with the inner wall of the transition smashing pipe body. The rotating shaft is sleeved with a spiral blade, the spiral blade is located between the hollowed-out supporting base assembly and the pump shell, and the outer circle of the end, away from the pump shell, of the rotating shaft is connected with a smashing blade assembly. The utility model has the advantages that the structure is reasonable, the blocking probability is reduced, and the use convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water pumps, in particular to a centrifugal water pump capable of reducing blockage. Background Art

[0002] Centrifugal water pump is referred to as "centrifugal pump, also called centrifugal pump. Before starting, the pump should be filled with water. After starting, the rotating impeller drives the water in the pump to rotate at high speed. The water performs centrifugal motion, is thrown out and pressed into the outlet pipe. After the water is thrown out, the pressure near the impeller decreases, and a low-pressure area is formed near the shaft. The water rushing in is thrown out again with the high-speed rotation of the impeller and pressed into the outlet pipe. The impeller rotates continuously at high speed under the drive of the power machine, and the water is continuously pumped from a low place to a high place. Publication (Announcement) No.: CN220910103U discloses a centrifugal water pump that can prevent clogging, including a centrifugal water pump body, the outer wall of the centrifugal water pump body is provided with an air leakage net, and the centrifugal water pump pump The upper part of the centrifugal water pump body is fixedly connected with a water outlet pipe, the outer wall of the centrifugal water pump body is fixedly connected with a water inlet pipe, the inner wall of the water inlet pipe is provided with a rotating cleaning device, and the rotating cleaning device includes a rotating ring. The anti-blocking centrifugal water pump drives the rotating ring to rotate through the impact of the water flow through the rotating cleaning device, and then drives the fixed rod so that the rotating rod will rotate, and accelerates the flow rate of the water flow through the rotation of the fan blades, and performs high-pressure impact on the accumulated blockages to achieve the effect of preventing blockage. At the same time, the rotation of the fan blades drives the filter plate to filter, and the rotation of the blade assembly cleans and removes the blockages, and the blockages are cleaned and removed in time, thereby improving the use effect of the subsequent centrifugal water pump.

[0003] The above-mentioned prior art solutions have the following defects: the water flow with blockages first contacts the fan blades, the water flow drives the fan blades to rotate, and the fan blades drive the rotating rod, the filter plate and the blade assembly to rotate synchronously. Next, the water flow contacts the filter plate, and the filter plate intercepts a part of the blockages. As the blockages continue to increase, the water permeability of the filter plate decreases, which blocks the water flow, and the blade assembly only cuts off the fine impurities in the filtered water. However, the larger blockages in the water inlet pipe are the main factor causing the blockage. Therefore, the centrifugal water pump needs to be cleaned and maintained regularly, which reduces the convenience of use. Utility Model Content

[0004] The main technical problem solved by the utility model is to provide a centrifugal water pump with reduced blockage. The rotating shaft drives the crushing blade assembly and the spiral blades to rotate. The crushing blade assembly first cuts off the larger blockages in the water flow, and the spiral blades assist in driving the water flow containing smaller blockages into the water pump body, thereby reducing the probability of blockage and improving the convenience of use.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a centrifugal water pump with reduced blockage, comprising: a water pump body and a motor that drives the water pump body to rotate, the water pump body comprising a pump casing and a rotating shaft penetrated through the pump casing, the pump casing is connected with a water outlet pipe, the outer circle of the rotating shaft is sleeved with an impeller assembly, the impeller assembly is located in the inner cavity of the pump casing, one end of the pump casing is connected with a circular tube concentric with the rotating shaft, the inner diameter of the circular tube is larger than the outer circle of the rotating shaft, the outer end of the circular tube is connected with a transition crushing tube body, the inner diameter of the transition crushing tube body is larger than the inner diameter of the circular tube, the outer circle of the rotating shaft is rotatably connected with a hollow support seat assembly, the hollow support seat assembly is connected to the inner wall of the transition crushing tube body, the rotating shaft is sleeved with a spiral blade, the spiral blade is located between the hollow support seat assembly and the pump casing, and the outer circle of the end of the rotating shaft away from the pump casing is connected with a crushing blade assembly.

[0006] By adopting the above technical scheme, when in use, first inject a proper amount of water into the pump casing through the water outlet pipe, the motor drives the rotating shaft to rotate, the rotating shaft drives the impeller assembly, the spiral blades and the crushing blade assembly to rotate, the water flow containing the blockage enters the inner cavity of the transition crushing tube body, the crushing blade assembly cuts off the larger blockages in the water flow, thereby reducing the volume of the blockage, and the spiral blades assist in driving the water flow through the circular tube into the inner cavity of the pump casing during the rotation process, reducing the probability of blockage by the blockage, the impeller assembly rotates to rotate the water in the pump casing at high speed and then throws it out, and presses it into the water outlet pipe, so as to achieve the purpose of pumping water, reduce the frequency of maintenance, and improve the convenience of use.

[0007] In a preferred example, the utility model can be further configured as follows: the impeller assembly includes a sleeve, an annular plate and a plurality of impeller blades, the annular plate is sleeved and connected to the outer circle of the sleeve, the annular array of impeller blades is connected to the end surface of the annular plate, and the sleeve is sleeved on the rotating shaft and fixedly connected thereto.

[0008] By adopting the above technical solution, the rotating shaft drives the sleeve to rotate, the sleeve drives the annular plate to rotate, the annular plate drives the impeller blades to rotate, the impeller blades drive the water body to rotate at high speed to generate centrifugal motion, and the water body in the centrifugal motion is pressed into the outlet pipe and then flows out, thereby achieving the purpose of pumping water.

[0009] In a preferred example, the utility model can be further configured as follows: the hollow support seat assembly includes an annular seat and a plurality of fixed rods, the annular seat is rotatably connected to the rotating shaft, the fixed rods are arranged in an annular array and the inner ends are connected to the annular seat, and the outer ends are connected to the inner wall of the transition crushing tube body.

[0010] By adopting the above technical solution, the end of the rotating shaft is rotatably connected to the annular seat, thereby enhancing the stability of the rotating shaft during rotation.

[0011] In a preferred example, the utility model can be further configured as follows: the crushing blade assembly includes a second sleeve and a plurality of blade bodies, and the blade bodies are connected to the outer circumferential surface of the second sleeve in an annular array.

[0012] By adopting the above technical solution, the blade body cuts the blockage in the water flow during the rotation process, thereby reducing the volume of the blockage and reducing the probability of blockage.

[0013] In a preferred example, the utility model can be further configured as follows: it also includes a base, the water pump body and the motor are respectively mounted at two ends of the base, and a coupling is sleevedly connected between the output shaft and the rotating shaft of the motor.

[0014] By adopting the above technical solution, the water pump body and the motor are fixed by the base, so that the water pump body and the motor are relatively fixed, which is convenient for movement and installation, and improves the convenience of use.

[0015] In a preferred example, the utility model can be further configured as follows: the transitional pulverizing tube body includes a pulverizing tube body, a conical tube 1 and a conical tube 2 connected at both ends thereof, the conical tube 1 is connected to the circular tube, the outer end of the conical tube 2 is connected to a water inlet pipe, and the inner diameter of the pulverizing tube body is larger than the inner diameter of the circular tube.

[0016] By adopting the above technical solution, the crushing tube body is connected to the circular tube through the conical tube 1, thereby reducing the resistance to water flow, and the conical tube 2 realizes the transition connection between the water inlet pipes with different diameters and the crushing tube body.

[0017] In summary, the present invention includes at least one of the following beneficial technical effects:

[0018] 1. The motor drives the shaft to rotate, and the shaft drives the crushing blade assembly to rotate. The crushing blade assembly first cuts off the larger blockages in the water flow, reducing the probability of blockage caused by large-volume blockages.

[0019] 2. The rotating shaft drives the spiral blades to rotate, and the spiral blades assist in driving the water flow containing smaller blockages into the water pump body, reducing the probability of blockage due to accumulation of smaller blockages, reducing the frequency of maintenance, and improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0021] Figure 1 It is a structural schematic diagram of a preferred embodiment of a centrifugal water pump with reduced clogging according to the utility model.

[0022] Figure 2 yes Figure 1 Section view along line AA.

[0023] Figure 3 yes Figure 2 Schematic diagram of the structure of the middle crushing blade assembly.

[0024] Figure 4 yes Figure 2 Schematic diagram of the structure of the hollow support seat assembly.

[0025] Figure 5 yes Figure 2 Schematic diagram of the structure of the impeller assembly.

[0026] In the figure: 1, motor; 20, water pump body; 3, round tube; 40, transition crushing tube body; 50, hollow support seat assembly; 6, spiral blade; 70, crushing blade assembly; 8, base; 9, coupling;

[0027] 11. Water inlet pipe;

[0028] 21. Pump housing; 22. Rotating shaft; 23. Water outlet pipe; 24. Impeller assembly; 241. Casing 1; 242. Ring plate; 243. Impeller blade;

[0029] 41. Crushing tube body; 42. Conical tube 1; 43. Conical tube 2;

[0030] 51. annular seat; 52. fixing rod;

[0031] 71. Casing 2; 72. Blade body. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0033] It should be noted that these drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0034] Reference Figures 1 to 5, is a centrifugal water pump with reduced clogging disclosed by the utility model, comprising: a water pump body 20 and a motor 1 for driving the water pump body 20 to rotate, the water pump body 20 comprising a pump casing 21 and a rotating shaft 22 penetrating the pump casing 21, the pump casing 21 being connected with a water outlet pipe 23, the outer circle of the rotating shaft 22 being sleeved with an impeller assembly 24, the impeller assembly 24 being located in the inner cavity of the pump casing 21, the impeller assembly 24 comprising a sleeve 241, an annular plate 242 and a plurality of impeller blades 243, the annular plate 242 being sleeved and connected to the outer circle of the sleeve 241, the impeller blades 243 being connected in an annular array to the end surface of the annular plate 242, the sleeve 241 being sleeved on the rotating shaft 22 and being fixedly connected thereto.

[0035] One end of the pump housing 21 is connected to a circular tube 3 which is concentric with the rotating shaft 22, and the inner diameter of the circular tube 3 is larger than the outer diameter of the rotating shaft 22. The outer end of the circular tube 3 is connected to a transition crushing tube body 40, and the inner diameter of the transition crushing tube body 40 is larger than the inner diameter of the circular tube 3. The transition crushing tube body 40 includes a crushing tube body 41, a conical tube 1 42 and a conical tube 2 43 connected at both ends thereof, the conical tube 1 42 is connected to the circular tube 3, and the outer end of the conical tube 2 43 is connected to a water inlet pipe 11, and the inner diameter of the crushing tube body 41 is larger than the inner diameter of the circular tube 3; the crushing tube body 41 is connected to the circular tube 3 through the conical tube 1 42 to reduce the resistance to the flow of water, and the conical tube 2 43 realizes a transition connection between the water inlet pipe 11 with different diameters and the crushing tube body 41.

[0036] The outer circle of the rotating shaft 22 is rotatably connected with a hollow support seat assembly 50, and the hollow support seat assembly 50 is connected to the inner wall of the transition crushing tube body 40. The hollow support seat assembly 50 includes an annular seat 51 and a plurality of fixed rods 52. The annular seat 51 is rotatably connected to the rotating shaft 22. The fixed rods 52 are arranged in a circular array and the inner ends are connected to the annular seat 51, and the outer ends are connected to the inner wall of the transition crushing tube body 40. The outer ends of the fixed rods 52 are connected to the inner wall of the crushing tube body 41; the end of the rotating shaft 22 is rotatably connected to the annular seat 51, which enhances the stability of the rotating shaft 22 during rotation.

[0037] A spiral blade 6 is sleeved and connected to the rotating shaft 22, and the spiral blade 6 is located between the hollow support seat assembly 50 and the pump housing 21. The outer circle of the end of the rotating shaft 22 away from the pump housing 21 is connected to a crushing blade assembly 70; the crushing blade assembly 70 includes a sleeve 71 and a plurality of blade bodies 72, and the blade bodies 72 are connected to the outer circle surface of the sleeve 71 in a ring array.

[0038] It also includes a base 8 , a water pump body 20 and a motor 1 are respectively mounted at two ends of the base 8 , and a coupling 9 is sleevedly connected between the output shaft of the motor 1 and the rotating shaft 22 .

[0039] The implementation principle of this embodiment is as follows: when in use, first, an appropriate amount of water is injected into the pump housing 21 through the water outlet pipe 23, and the motor 1 drives the rotating shaft 22 to rotate, and the rotating shaft 22 drives the impeller assembly 24, the spiral blade 6 and the crushing blade assembly 70 to rotate, and the water flow containing the blockage enters the inner cavity of the transition crushing tube body 40 from the water inlet pipe 11, and the blade body 72 on the crushing blade assembly 70 cuts off the larger blockage in the water flow, thereby reducing the volume of the blockage, and the spiral blade 6 assists in driving the water flow through the circular pipe 3 into the inner cavity of the pump housing 21 during the rotation process, reducing the probability of blockage due to accumulation of blockages, and the impeller blades 243 on the impeller assembly 24 rotate to drive the water body in the pump housing 21 to rotate at a high speed and throw the water body out, and press the water body into the water outlet pipe 23 and then flow out, so as to achieve the purpose of pumping water, reduce the frequency of maintenance, and improve the convenience of use.

[0040] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A centrifugal water pump with reduced clogging, comprising: A water pump body (20) and a motor (1) for driving the water pump body (20) to rotate, characterized in that the water pump body (20) comprises a pump housing (21) and a rotating shaft (22) passing through the pump housing (21), the pump housing (21) is connected to a water outlet pipe (23), the outer circle of the rotating shaft (22) is sleeved with an impeller assembly (24), the impeller assembly (24) is located in the inner cavity of the pump housing (21), one end of the pump housing (21) is connected to a circular tube (3) concentric with the rotating shaft (22), the inner diameter of the circular tube is larger than the outer circle of the rotating shaft, and the circular tube (3) is The outer end is connected to a transition crushing tube body (40), the inner diameter of the transition crushing tube body (40) is larger than the inner diameter of the circular tube (3), the outer circle of the rotating shaft (22) is rotatably connected to a hollow support seat assembly (50), the hollow support seat assembly (50) is connected to the inner wall of the transition crushing tube body (40), the rotating shaft (22) is sleeved with a spiral blade (6), the spiral blade (6) is located between the hollow support seat assembly (50) and the pump housing (21), and the outer circle of the end of the rotating shaft (22) away from the pump housing (21) is connected to a crushing blade assembly (70).

2. The centrifugal water pump with reduced clogging according to claim 1, characterized in that: The impeller assembly (24) comprises a sleeve (241), an annular plate (242) and a plurality of impeller blades (243); the annular plate (242) is sleeved and connected to the outer circle of the sleeve (241); the impeller blades (243) are connected to the end surface of the annular plate (242) in an annular array; and the sleeve (241) is sleeved on the rotating shaft (22) and fixedly connected thereto.

3. The centrifugal water pump with reduced clogging according to claim 1, characterized in that: The hollow support seat assembly (50) comprises an annular seat (51) and a plurality of fixing rods (52); the annular seat (51) is rotatably connected to the rotating shaft (22); the fixing rods (52) are arranged in an annular array and have inner ends connected to the annular seat (51) and outer ends connected to the inner wall of the transition pulverizing tube body (40).

4. The centrifugal water pump with reduced clogging according to claim 1, characterized in that: The crushing blade assembly (70) comprises a second sleeve (71) and a plurality of blade bodies (72), wherein the blade bodies (72) are connected to the outer circumferential surface of the second sleeve (71) in an annular array.

5. The centrifugal water pump with reduced clogging according to claim 1, characterized in that: It also comprises a base (8), the water pump body (20) and the motor (1) are respectively mounted at two ends of the base (8), and a coupling (9) is sleeve-connected between the output shaft of the motor (1) and the rotating shaft (22).

6. The centrifugal water pump with reduced clogging according to claim 1, characterized in that: The transitional pulverizing tube body (40) comprises a pulverizing tube body (41), a conical tube 1 (42) and a conical tube 2 (43) connected at both ends thereof, the conical tube 1 (42) being connected to the circular tube (3), the outer end of the conical tube 2 (43) being connected to a water inlet pipe (11), and the inner diameter of the pulverizing tube body (41) being larger than the inner diameter of the circular tube (3).

Images