CN208918863U - Submersible sewage pump structure in prefabricated pumping plant - Google Patents

Abstract

The utility model discloses the submersible sewage pump structures in prefabricated pumping plant, include, the pump housing, the pump housing has impeller accommodating chamber, it is formed on the pump housing and downwardly open is pumped into the mouth of a river, the inside of the impeller accommodating chamber has wheel rotor, and the wheel rotor, which has, extends into the impeller axial direction part being pumped into inside the mouth of a river, and the outer peripheral surface of the impeller axial direction part and described be pumped between the inner peripheral surface at the mouth of a river have sealed nylon circle.Utility model has the advantages that the design of sealed nylon circle so that impeller axial direction part and be pumped into mouth of a river non-direct contact, even if wheel rotor or being pumped into the mouth of a river and getting rusty, wheel rotor will not clamping stagnation or rotation it is unsmooth.

Description

Submersible sewage pump structure in prefabricated pumping plant

Technical field

The utility model relates to pump more particularly to prefabricated pumping plant in submersible sewage pump structure.

Background technique

Chinese utility model patent CN201687734U bulletin " a kind of novel submersible pollution discharge pump ", impeller axial direction part with Being pumped between the mouth of a river is direct face contact.Since the pump housing and impeller are gray cast iron material, easily get rusty.Once getting rusty, it will cause leaves It takes turns clamping stagnation or rotates unsmooth problem.

Utility model content

Getting rusty the purpose of the utility model is to overcome prior art middle pump body and impeller leads to impeller clamping stagnation or rotation not Smooth problem provides the submersible sewage pump structure in the novel prefabricated pumping plant of one kind.

In order to realize the purpose, the technical solution of the utility model is as follows: the submersible sewage pump structure in prefabricated pumping plant includes Have, the pump housing, the pump housing has impeller accommodating chamber, and the downwardly open mouth of a river that is pumped into is formed on the pump housing, and the impeller holds Receiving the inside of room has wheel rotor, and the wheel rotor, which has, extends into the impeller axial direction part being pumped into inside the mouth of a river, institute Stating has sealed nylon circle between the outer peripheral surface of impeller axial direction part and the inner peripheral surface for being pumped into the mouth of a river, described be pumped on the mouth of a river has Lower positioning protrusion and the lower positioning protrusion below the sealed nylon circle are pumped into the inner peripheral surface beginning diameter at the mouth of a river described in To extending internally, the top surface phase face contact of the bottom surface of the sealed nylon circle and the lower positioning protrusion, the impeller axial direction part Above with the upper positioning protrusion and the upper positioning protrusion being in above the sealed nylon circle from outside the impeller axial direction part The circumferential surface beginning extends radially outwardly, the bottom surface phase face contact of the top surface of the sealed nylon circle and the upper positioning protrusion, the pump The opening of the first groove and first groove is formed on the inner peripheral surface of water inlet towards the impeller axial direction part, the nylon The opening that the second groove and second groove are formed on the outer peripheral surface of sealing ring is pumped into the mouth of a river described in, and described first is recessed Slot is oppositely arranged with second groove, and first groove and second groove accommodate positioning ring jointly.

As the preferred embodiment of the submersible sewage pump structure in prefabricated pumping plant, the positioning ring is metallic hard material.

As the preferred embodiment of the submersible sewage pump structure in prefabricated pumping plant, the axial length of the sealed nylon circle is equal to described The bottom surface of the half of the axial length of impeller axial direction part, the sealed nylon circle is 2-5mm lower than the bottom surface of the impeller axial direction part.

Compared with the prior art, the advantages of the utility model are: the design of (1) sealed nylon circle, so that impeller is axial Section be pumped into mouth of a river non-direct contact, even if wheel rotor or being pumped into the mouth of a river and getting rusty, wheel rotor clamping stagnation or will not turn It moves unsmooth；(2) design of positioning protrusion, lower positioning protrusion and positioning ring on is used for positioning nylon sealing ring, guarantees sealed nylon Circle will not be removed from impeller axial direction part and being pumped between the mouth of a river；(3) sealed nylon circle can also stablize rotation of the impeller shaft to section, drop Low its radially shakes.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of an embodiment of the present invention.

Specific embodiment

The utility model is described in further detail below by specific embodiment combination attached drawing.

Referring to Figure 1, shown in figure is submersible sewage pump structure in prefabricated pumping plant.It include the pump housing 1, the pump housing 1 has There is impeller accommodating chamber.It is formed on the pump housing 1 and downwardly open is pumped into the mouth of a river 10.The inside of the impeller accommodating chamber, which has, to be turned Movable vane wheel 2.The wheel rotor 2, which has, extends into the impeller axial direction part 20 being pumped into inside the mouth of a river 10.The impeller is axial Section 20 outer peripheral surface and the inner peripheral surface for being pumped into the mouth of a river 10 between have sealed nylon circle 3 so that impeller axial direction part 20 be pumped into 10 non-direct contact of the mouth of a river, even if wheel rotor 2 or being pumped into the mouth of a river 10 and getting rusty, the wheel rotor 2 will not clamping stagnation or It rotates unsmooth.

The wheel rotor 2 rotates, and water flow enters from the mouth of a river 10 that is pumped into, while can also impact the sealed nylon circle 3 upward displacements, or even removed between the outer peripheral surface and the inner peripheral surface for being pumped into the mouth of a river 10 of the impeller axial direction part 20.In order to anti- The only appearance of above situation, it is described be pumped on the mouth of a river 10 have the lower positioning protrusion 101 in 3 lower section of the sealed nylon circle and The inner peripheral surface beginning that the lower positioning protrusion 101 is pumped into the mouth of a river 10 described in extends radially inwardly, the bottom surface of the sealed nylon circle 3 With the top surface phase face contact of the lower positioning protrusion 101, the lower limit to the sealed nylon circle 3 is realized.The impeller is axial There is the upper positioning protrusion 201 in 3 top of the sealed nylon circle in section 20 and the upper positioning protrusion 201 is from the impeller The outer peripheral surface beginning of axial direction part 20 extends radially outwardly, the bottom surface of the top surface of the sealed nylon circle 3 and the upper positioning protrusion 201 Phase face contact realizes the upper limit to the sealed nylon circle 3.In addition, being formed on the inner peripheral surface for being pumped into the mouth of a river 10 The opening of one groove and first groove is towards the impeller axial direction part 20.It is formed on the outer peripheral surface of the sealed nylon circle 3 There is the opening of the second groove and second groove to be pumped into the mouth of a river 10 described in.First groove and the second groove phase To setting.First groove and second groove accommodate positioning ring 4 described in positioning ring 4(jointly and use copper, cast iron materials). Whereby, the design of the upper positioning protrusion 201, the lower positioning protrusion 101 and the positioning ring 4, for positioning the nylon Sealing ring 3 guarantees that the sealed nylon circle 3 will not be removed from impeller axial direction part 20 and being pumped between the mouth of a river 10.

The axial length of the sealed nylon circle 3 is equal to the half of the axial length of the impeller axial direction part 20, the Buddhist nun The bottom surface of imperial sealing ring 3 is 2-5mm lower than the bottom surface of the impeller axial direction part 20.The sealed nylon circle 3 can also be stablized described The rotation of impeller axial direction part 20 reduces it and radially shakes.

Only express the embodiments of the present invention above, the description thereof is more specific and detailed, but can not therefore and It is interpreted as the limitation to utility model patent range.It should be pointed out that for those of ordinary skill in the art, not Under the premise of being detached from the utility model design, various modifications and improvements can be made, these belong to the guarantor of the utility model Protect range.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.

Claims (3)

1. the submersible sewage pump structure in prefabricated pumping plant, which is characterized in that include the pump housing, the pump housing has impeller accommodating chamber, institute It states and is formed with the downwardly open mouth of a river that is pumped on the pump housing, the inside of the impeller accommodating chamber has wheel rotor, the rotation leaf It takes turns to have and extends into the impeller axial direction part being pumped into inside the mouth of a river, the outer peripheral surface of the impeller axial direction part is pumped into the mouth of a river with described Inner peripheral surface between there is sealed nylon circle, it is described to be pumped on the mouth of a river the lower positioning protrusion having below the sealed nylon circle And the lower positioning protrusion from described in be pumped into the mouth of a river inner peripheral surface beginning extend radially inwardly, the bottom surface of the sealed nylon circle and institute The top surface phase face contact of lower positioning protrusion is stated, there is the upper positioning above the sealed nylon circle on the impeller axial direction part The raised and described upper positioning protrusion extends radially outwardly from the outer peripheral surface beginning of the impeller axial direction part, the top of the sealed nylon circle The bottom surface phase face contact in face and the upper positioning protrusion, described be pumped on the inner peripheral surface at the mouth of a river are formed with the first groove and described The opening of one groove is formed with the second groove and described on the outer peripheral surface of the sealed nylon circle towards the impeller axial direction part The opening of two grooves is pumped into the mouth of a river described in, and first groove is oppositely arranged with second groove, first groove Positioning ring is accommodated jointly with second groove.

2. the submersible sewage pump structure in prefabricated pumping plant according to claim 1, which is characterized in that the positioning ring is metallic hard Material.

3. the submersible sewage pump structure in prefabricated pumping plant according to claim 1, which is characterized in that the axis of the sealed nylon circle It is equal to the half of the axial length of the impeller axial direction part to length, the bottom surface of the sealed nylon circle is than the impeller axial direction part The low 2-5mm in bottom surface.