Anti-blocking crushing type sewage pump

Abstract

The utility model provides an anti-blocking smashing type sewage pump, and belongs to the field of pumps. The problem that an existing sewage pump is prone to being blocked is solved. The anti-blocking smashing type sewage pump comprises a pump body with a water inlet and a water outlet, an impeller and a driving motor, a smashing mechanism is arranged at the water inlet of the pump body, the smashing mechanism and the impeller are arranged in a coaxial structure, the smashing mechanism is driven by the driving motor, and the smashing mechanism comprises a smashing disc and a cutting disc. The smashing disc, the cutting disc and the impeller are sequentially arranged on an output shaft of the driving motor from bottom to top, a plurality of water passing holes are formed in the side wall of an inner cavity of the smashing disc, a plurality of through holes are formed in the bottom of the inner cavity of the smashing disc, and a main blade is axially and upwards arranged at the bottom of the inner cavity of the smashing disc. Auxiliary blades are arranged on the side wall of an inner cavity of the smashing disc inwards in the radial direction, and sawtooth blades used for improving the cutting and smashing efficiency are arranged on the outer edge portion of the cutting disc. The utility model has the advantages of anti-clogging, high efficiency and long service life.

Description

Technical Field

[0001] The utility model belongs to the field of pumps and relates to a sewage pump, in particular to an anti-blocking and crushing type sewage pump. Background Art

[0002] Sewage pump is a kind of centrifugal pump with many forms: submersible and dry. The most common submersible pump is WQ submersible sewage pump. The most common dry sewage pumps are W-type horizontal sewage pump and WL-type vertical sewage pump. They are mainly used to transport urban sewage, feces or liquid containing fiber, paper scraps and other solid particles. The temperature of the transported medium is usually not more than 80℃.

[0003] Since the transported medium contains fibers that are easy to entangle or bunch, the flow channel of this type of pump is easy to be blocked. Once the pump is blocked, it will not work normally, and even burn the motor, resulting in poor sewage discharge, which has a serious impact on urban life and environmental protection. Summary of the invention

[0004] The purpose of the utility model is to provide an anti-clogging crushing type sewage pump to solve the above problems in the prior art.

[0005] The purpose of the utility model can be achieved through the following technical solutions: an anti-clogging crushing type sewage pump, comprising a pump body with a water inlet and a water outlet, an impeller located in the pump body and used for centrifugally driving the medium, and a driving motor used to drive the impeller to work, characterized in that a crushing mechanism for preventing clogging and crushing fiber objects is arranged at the water inlet of the pump body, the crushing mechanism is arranged in a coaxial structure with the impeller, and is driven by the driving motor;

[0006] The pulverizing mechanism comprises a pulverizing disc for pulverizing fiber materials and a cutting disc for preventing clogging and for cutting. The pulverizing disc, the cutting disc and the impeller are sequentially arranged on the output shaft of the driving motor from bottom to top.

[0007] The cross section of the crushing disk is arranged in a "concave" structure;

[0008] The side wall of the inner cavity of the crushing disk is provided with a plurality of water holes for medium circulation, and the bottom of the inner cavity of the crushing disk is provided with a plurality of through holes for medium circulation;

[0009] A main blade for cutting and crushing fiber objects is axially arranged upward at the bottom of the inner cavity of the crushing disk, and an auxiliary blade for improving the efficiency of cutting and crushing fiber objects is radially arranged inward on the side wall of the inner cavity of the crushing disk;

[0010] The cutting disc is arranged in a "cross"-shaped structure, and a serrated blade for improving the cutting and crushing efficiency is arranged at the outer edge of the cutting disc.

[0011] In the above-mentioned anti-clogging crushing type sewage pump, a plurality of cutting seats for preventing fiber blockage and performing cutting are arranged at the bottom of the inner cavity of the crushing disc. The crushing disc, cutting seat, main blade and auxiliary blade are all arranged in an integrally formed structure.

[0012] In the above-mentioned anti-clogging crushing type sewage pump, several auxiliary blades and water holes are arranged and distributed in a circumferential direction along the inner wall of the crushing disk, and the auxiliary blades and the main blades can cut and crush the fiber in the medium.

[0013] In the above-mentioned anti-clogging crushing type sewage pump, the crushing disc and the cutting disc are driven by the driving motor to rotate synchronously with the impeller, and a plurality of extension parts are arranged axially downwardly extending below the water inlet of the pump body to prevent the crushing mechanism from being damaged.

[0014] Compared with the prior art, the anti-clogging crushing type sewage pump has a reasonable structural design. It uses a crushing disk and a cutting disk structure coaxially arranged with the impeller at the water inlet of the pump body to effectively crush, cut and stir the medium containing fibers that are easy to be entangled or bunched. At the same time, the crushing disk itself prevents uncut and crushed fibers that are easy to be entangled or bunched from entering the pump body, thereby greatly improving the service life and working efficiency of the sewage pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the anti-clogging crushing type sewage pump.

[0016] Figure 2 It is a schematic diagram of the half-section structure of the anti-clogging crushing type sewage pump.

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure in two directions of the pulverizing mechanism of the anti-clogging pulverizing type sewage pump.

[0018] In the figure, 1, pump body; 2, impeller; 3, driving motor; 4, crushing disc; 5, cutting disc; 6, water hole; 7, through hole; 8, main blade; 9, auxiliary blade; 10, serrated blade; 11, cutting seat; 12, extension part. DETAILED DESCRIPTION

[0019] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0020] like Figure 1 , Figure 2 , Figure 3As shown, the anti-clogging crushing type sewage pump comprises a pump body 1 with a water inlet and a water outlet, an impeller 2 located in the pump body 1 and used for centrifugally driving the medium, and a driving motor 3 used to drive the impeller 2 to work. A crushing mechanism for preventing clogging and crushing fiber materials is arranged at the water inlet of the pump body 1. The crushing mechanism is arranged in a coaxial structure with the impeller 2 and is driven by the driving motor 3. The crushing mechanism comprises a crushing disk 4 for crushing fiber materials and a cutting disk 5 for preventing clogging and for cutting. The crushing disk 4, the cutting disk 5 and the impeller 2 are arranged on the output of the driving motor 3 from bottom to top in sequence. On the axis, the cross-section of the pulverizing disk 4 is arranged in a "concave" structure, a plurality of water holes 6 for medium circulation are provided on the side wall of the inner cavity of the pulverizing disk 4, a plurality of through holes 7 for medium circulation are provided at the bottom of the inner cavity of the pulverizing disk 4, a main blade 8 for cutting and crushing fiber materials is axially arranged upward at the bottom of the inner cavity of the pulverizing disk 4, an auxiliary blade 9 for improving the efficiency of cutting and crushing fiber materials is radially arranged inward on the side wall of the inner cavity of the pulverizing disk 4, the cutting disk 5 is arranged in a "cross" structure, and a serrated blade 10 for improving the cutting and crushing efficiency is arranged on the outer edge of the cutting disk 5.

[0021] The above-mentioned structure is reasonably designed. By adding a crushing disk 4 and a cutting disk 5 coaxially arranged with the impeller 2 at the water inlet of the pump body 1, the medium containing fibers that are easy to be entangled or bunched can be effectively crushed, cut and stirred. At the same time, the crushing disk 4 itself has the function of preventing uncut and crushed fibers that are easy to be entangled or bunched from entering the interior of the pump body 1, thereby greatly improving the service life and working efficiency of the sewage pump.

[0022] To further elaborate, in order to improve the cutting efficiency of the shredding disc 4 and prevent large objects from being blocked, a plurality of cutting seats 11 are provided at the bottom of the inner cavity of the shredding disc 4 for preventing fibrous objects from being blocked and for cutting. The shredding disc 4, the cutting seat 11, the main blade 8 and the auxiliary blade 9 are all integrally formed structures.

[0023] To further elaborate, in order to improve the crushing efficiency, the auxiliary blades 9 and water holes 6 are arranged and distributed in a circumferential direction along the inner wall of the crushing disk 4, and the auxiliary blades 9 and the main blades 8 can cut and crush the fiber in the medium.

[0024] To elaborate further, in order to prevent the problem of external damage to the crushing disk 4 caused by external factors, the crushing disk 4 and the cutting disk 5 are driven by the driving motor 3 to rotate synchronously with the impeller 2, and a plurality of extension portions 12 are provided axially downwardly extending below the water inlet of the pump body 1 to prevent damage to the crushing mechanism.

[0025] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0026] Although the present invention uses more terms such as pump body 1, impeller 2, drive motor 3, crushing disc 4, cutting disc 5, water hole 6, through hole 7, main blade 8, auxiliary blade 9, serrated edge 10, cutting seat 11, extension 12, etc., it does not exclude the possibility of using other terms. The use of these terms is only for more convenient description and explanation of the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. An anti-clogging crushing type sewage pump, comprising a pump body (1) with a water inlet and a water outlet, an impeller (2) located in the pump body (1) and used for centrifugally driving a medium, and a drive motor (3) used for driving the impeller (2) to work, characterized in that: A pulverizing mechanism for preventing blockage and capable of pulverizing fiber matter is disposed at the water inlet of the pump body (1); the pulverizing mechanism is coaxially disposed with the impeller (2) and is driven by a drive motor (3); The pulverizing mechanism comprises a pulverizing disc (4) for pulverizing fiber materials and a cutting disc (5) for preventing blockage and for cutting, wherein the pulverizing disc (4), the cutting disc (5) and the impeller (2) are arranged on the output shaft of the driving motor (3) in sequence from bottom to top; The cross section of the crushing disc (4) is arranged in a "concave" structure; A plurality of water holes (6) for medium circulation are provided on the side wall of the inner cavity of the pulverizing disk (4), and a plurality of through holes (7) for medium circulation are provided at the bottom of the inner cavity of the pulverizing disk (4); A main blade (8) for cutting and pulverizing fiber matter is arranged axially upward at the bottom of the inner cavity of the pulverizing disk (4), and an auxiliary blade (9) for improving the efficiency of cutting and pulverizing fiber matter is arranged radially inward on the side wall of the inner cavity of the pulverizing disk (4); The cutting disc (5) is arranged in a "cross"-shaped structure, and a sawtooth blade (10) is arranged on the outer edge of the cutting disc (5) for improving the cutting and crushing efficiency.

2. The anti-clogging crushing type sewage pump according to claim 1 is characterized in that: A plurality of cutting seats (11) are also provided at the bottom of the inner cavity of the pulverizing disc (4) for preventing clogging of fibers and for performing cutting. The pulverizing disc (4), the cutting seat (11), the main blade (8) and the auxiliary blade (9) are all provided as an integrally formed structure.

3. The anti-clogging crushing type sewage pump according to claim 1 is characterized in that: The plurality of auxiliary blades (9) and water holes (6) are arranged at intervals in a circumferential direction along the inner wall of the pulverizing disk (4), and the auxiliary blades (9) and the main blades (8) can cut and pulverize the fiber material in the medium.

4. The anti-clogging crushing type sewage pump according to claim 1, characterized in that: The crushing disc (4) and the cutting disc (5) are driven by the driving motor (3) to rotate synchronously with the impeller (2), and a plurality of extension parts (12) are provided axially extending downwardly below the water inlet of the pump body (1) to prevent damage to the crushing mechanism.

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