CN219481843U - Filter for waste water lift pump - Google Patents

Abstract

The application relates to a filter for a waste water lift pump, relates to the technical field of filters. The device comprises an upper shell and a lower shell which are communicated with each other, wherein a water inlet is formed in the side wall of the lower shell, a water outlet is formed in the side wall of the upper shell, and the water outlet of the upper shell is communicated with a lifting pump; the rotary shaft is rotatably connected with the upper shell, the net core filter cylinder is arranged in the upper shell and positioned outside the rotary shaft, the net core filter cylinder and the upper shell are coaxially arranged, a connecting disc is sleeved on the outer wall of the rotary shaft, the peripheral wall of the connecting disc abuts against the inner wall of the net core filter cylinder, and the connecting disc drives the net core filter cylinder to rotate. This application has and filters the suspended particulate matter in the waste water in advance before waste water enters into the elevator pump, reduces the elevator pump and takes place the probability of jam, improves the effect of the work efficiency of waste water promotion.

Description

Filter for waste water lift pump

Technical Field

The application relates to the technical field of filters, in particular to a filter for a wastewater lifting pump.

Background

The waste water lifting pump is a pump product integrating a pump, a motor, a shell and a control system and is commonly used for lifting waste in places such as families, public places and the like.

The utility model provides a design has a elevator pump for waste water treatment among the related art, and it includes elevator pump body, protection casing and supporting seat, and elevator pump body and supporting seat fixed connection, the protection casing cover are established in this body outside of promotion, and the protection casing bottom is provided with solid fixed ring, gu fixed ring and protection casing fixed connection, gu fixed ring sliding connection is in the supporting seat, and elevator pump body intercommunication has inlet tube and outlet pipe. In the use, promote the inlet tube of this body and will insert and establish in the wastewater disposal basin, promote waste water through the elevator pump body to discharge through the outlet pipe.

For the above related technologies, the inventor found that solid particles are mixed in general wastewater, which is easy to cause blockage of the inlet of the lifting pump body, so that the machine pump idles, and the sealing of the machine pump cannot be damaged after lubrication of liquid, so that a filter capable of filtering particles at the water inlet of the wastewater lifting body is needed.

Disclosure of Invention

In order to filter particles in wastewater, reduce the probability that the elevator pump is blocked, improve the operational safety of elevator pump, the application provides a filter for wastewater elevator pump.

The application provides a filter for waste water elevator pump adopts following technical scheme:

a filter for a wastewater lift pump comprises an upper shell and a lower shell which are communicated with each other, wherein a water inlet is formed in the side wall of the lower shell, a water outlet is formed in the side wall of the upper shell, and the water outlet of the upper shell is communicated with the lift pump; the rotary shaft is rotatably connected with the upper shell, the net core filter cylinder is arranged in the upper shell and positioned outside the rotary shaft, the net core filter cylinder and the upper shell are coaxially arranged, a connecting disc is sleeved on the outer wall of the rotary shaft, the peripheral wall of the connecting disc abuts against the inner wall of the net core filter cylinder, and the connecting disc drives the net core filter cylinder to rotate.

Through adopting above-mentioned technical scheme, waste water enters into the inferior valve through the water inlet, enter into the net core section of thick bamboo by the inferior valve again in, filter impurity such as granule suspended matter in the waste water through the net core section of thick bamboo, the waste water after filtering will pass the net core section of thick bamboo and enter into the elevator pump from the delivery port, and impurity such as granule suspended matter can be held back at net core section of thick bamboo inner wall, when the impurity gathering of net core section of thick bamboo inner wall is too much, just can make water inlet and delivery port produce pressure differential, the waste water velocity of flow that gets into from the water inlet will be faster, thereby just can back flush the impurity of net core section of thick bamboo inner wall, make impurity follow net core section of thick bamboo inner wall drop, and stay net green section of thick bamboo inside with suspended state, wait for follow-up unified clearance, thereby can realize effectively filtering the granule in the waste water, reduce the probability that the elevator pump takes place the jam, and have higher practicality and security.

Preferably, one end of the rotating shaft, which is away from the lower shell, passes through the upper shell, and one end of the rotating shaft, which extends out of the upper shell, is provided with a tightening column, and the diameter of the tightening column is larger than that of the rotating shaft.

Through adopting above-mentioned technical scheme, setting up to support tight post can effectively reduce the axis of rotation and take place not hard up with last casing after rotating a period to drop to the upper casing inside completely, lead to axis of rotation and net core to strain a section of thick bamboo and take place the butt collision with last shells inner wall, lead to the problem of filter damage, improved the security of this application.

Preferably, the end wall of the propping column is provided with a connecting rod, one end of the connecting rod, which deviates from the propping column, is provided with a positioning rod, the positioning rod is vertically arranged, the peripheral wall of the top wall of the upper shell is provided with a limiting ring, one surface of the positioning rod, which is close to the limiting ring, is provided with a limiting groove, and the limiting ring is propped into the limiting groove.

Through adopting above-mentioned technical scheme, when the axis of rotation rotates because the inside rivers of last casing take place, will drive the net core and strain the barrel and rotate in last casing, because there is pressure differential in water inlet and delivery port for the net core is strained and is easily taken place to deflect when rotating, through setting up the locating lever, and make locating lever and spacing ring obtain the joint, just can improve the stability when axis of rotation rotates, make the net core strain the barrel and filter waste water steadily, have higher stability and security.

Preferably, a buffer bearing is arranged at the joint of the rotating shaft and the upper shell, and the buffer bearing is used for reducing abrasion between the rotating shaft and the upper shell.

Through adopting above-mentioned technical scheme, set up the wearing and tearing between axis of rotation and the last casing can effectively be reduced to can prolong the life of the filter of this application, have higher security and economic benefits.

Preferably, the end walls of the upper shell and the lower shell, which are close to each other, are provided with connecting flanges.

Through adopting above-mentioned technical scheme, set up flange for can realize quick equipment and dismantlement between last casing and the lower casing, thereby can be after the filter of this application works a period, lift casing and lower casing off, wash the last casing with the impurity of last casing inside, have higher convenience and practicality.

Preferably, a guide plate is arranged in the lower shell, the guide plate is obliquely arranged, and the guide plate guides the waste water in the lower shell towards the inner direction of the net core filter cylinder.

Through adopting above-mentioned technical scheme, set up the guide plate and can make waste water more concentrate and get into in the net core filter cartridge to make impurity such as granule suspended solid in the waste water can be blocked by the inner wall of net core filter cartridge, thereby effectively improve the filtering quality of net core filter cartridge, further reduced the content of the granule suspended solid that gets into the elevator pump, help further improving the filter effect of net core filter cartridge and the security performance of elevator pump work

Preferably, a shunt tube is arranged in the lower shell, one end of the shunt tube penetrates through the guide plate, a one-way valve is arranged between the upper shell and the lower shell, a flushing branch pipe is communicated with the side wall of the shunt tube, and the flushing branch pipe is positioned on one side, away from the opening of the shunt tube, of the guide plate.

Through adopting above-mentioned technical scheme, set up shunt tubes and wash the branch pipe, can filter the outer back flush of wall to the net core, because waste water all turns on towards the net core and strains the inside of straining a section of thick bamboo, impurity such as granule suspended solid is detained in net core and strain the mesh inner wall of straining a section of thick bamboo more, through the drive of outside rivers for net core strain a section of thick bamboo can rotate, thereby realize the back flush to net core strain the impurity of straining a section of thick bamboo inner wall, improved the clean degree of convenience to net core strain a section of thick bamboo, have higher practicality.

Preferably, the top wall of the upper shell is provided with an exhaust port.

Through adopting above-mentioned technical scheme, when the waste water has certain temperature, just can discharge some steam, the gaseous etc. that waste water carried through the gas vent to can effectively maintain the inside and outside atmospheric pressure balance of last casing, make waste water can filter through the net core filter cartridge stably, have higher practicality and security.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through setting up filter and inside net core and straining the barrel, can carry out effective filtration to impurity such as granule suspended solid in the waste water in advance before waste water gets into the elevator pump, reduce the probability that the elevator pump promoted jam when waste water from this, improve the operation security, simultaneously through setting up the axis of rotation and can drive net core and strain the barrel rotation when water inlet and delivery port form pressure differential, in order to realize the back flush to net core strain impurity of inner wall of the barrel, effectively reduced net core and strain the probability of jam;

2. through setting up locating lever and spacing ring, can be when the axis of rotation rotates, carry out spacingly to the direction of rotation of axis of rotation to reduce the inside water velocity of upper casing and be too fast, lead to the axis of rotation to drive the net core and strain the probability that the rotation takes place the skew, thereby can improve the security of the filter working process of this application.

Drawings

Fig. 1 is a schematic structural view of a filter for a wastewater lift pump according to an embodiment of the present application.

Fig. 2 is an enlarged view of a portion of fig. 1 at A-A.

Reference numerals illustrate: 1. an upper housing; 11. a water outlet; 12. a limiting ring; 13. an exhaust port; 2. a lower housing; 21. a water inlet; 22. a shunt; 221. flushing the branch pipes; 23. a one-way valve; 3. a rotating shaft; 31. a connecting disc; 32. abutting the column; 33. a connecting rod; 34. a buffer bearing; 4. a mesh core filter cartridge; 5. a positioning rod; 51. a limit groove; 6. a connecting flange; 7. and a deflector.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-2.

The embodiment of the application discloses a filter for a wastewater lift pump. Referring to fig. 1 and 2, a filter for a wastewater lift pump includes an upper casing 1 and a lower casing 2 which are communicated with each other, wherein end walls of one ends of the upper casing 1 and the lower casing 2, which are close to each other, are provided with a connecting flange 6 by welding, and the upper casing 1 and the lower casing 2 are connected by the connecting flange 6 and bolts, thereby realizing communication between the two; the side wall of the lower shell 2 is provided with a water inlet 21, the side wall of the upper shell 1 is provided with a water outlet 11, and the water outlet 11 of the upper shell 1 is communicated with a water inlet pipe of the lift pump.

Referring to fig. 1 and 2, a rotating shaft 3 is rotatably connected to an upper housing 1, the rotating shaft 3 is vertically arranged, one end of the rotating shaft 3, which is away from a lower housing 2, passes through the top wall of the upper housing 1, a buffer bearing 34 is arranged at the joint of the rotating shaft 3 and the upper housing 1, the inner ring of the buffer bearing 34 is arranged on the outer wall of the rotating shaft 3 through a key connecting sleeve, and the outer ring of the buffer bearing 34 is connected with the upper housing 1 through welding, so that the abrasion between the rotating shaft 3 and the upper housing 1 can be effectively reduced, and the structural integrity and the rotating fluency of the rotating shaft 3 are maintained; one end integrated into one piece that axis of rotation 3 stretched out last casing 1 has to support tight post 32, supports tight post 32's diameter and is greater than axis of rotation 3 diameters to can effectively reduce the probability that axis of rotation 3 falls into in the last casing 1 completely, improve the operational safety and the stability of the filter of this application.

Referring to fig. 1 and 2, the end wall of the abutting column 32 is provided with a connecting rod 33 through welding, the connecting rod 33 is parallel to the end wall of the upper shell 1, one end of the connecting rod 33, deviating from the abutting column 32, is connected with a positioning rod 5 through welding, the positioning rod 5 is vertically arranged, the top wall peripheral wall of the upper shell 1 is integrally formed with a limiting ring 12, one surface of the positioning rod 5, close to the limiting ring 12, is provided with a limiting groove 51, and the limiting ring 12 is abutted into the limiting groove 51, so that the positioning rod 5 can be driven to rotate together when the rotating shaft 3 rotates, and the rotating stability of the positioning rod 5 can be effectively maintained due to the abutting relationship between the limiting ring 12 and the inner wall of the limiting groove 51, so that the influence of waste water in the upper shell 1 on the rotating shaft 3 and the possibility of the rotating shaft 3, which deviates under the impact of the waste water, are reduced, and the practicability and stability are high.

Referring to fig. 1 and 2, a net core filter cartridge 4 is arranged in an upper shell 1, the net core filter cartridge 4 is arranged between a rotating shaft 3 and the inner wall of the upper shell 1, waste water in a lower shell 2 enters the net core filter cartridge 4, particles in the waste water are filtered and separated by the net core filter cartridge 4, so that the safety of the operation of a lift pump is improved, in the embodiment, the rotating shaft 3, the net core filter cartridge 4 and the upper shell 1 are coaxially arranged, a connecting disc 31 is welded on the outer wall of the rotating shaft 3, the peripheral wall of the connecting disc 31 is connected with the inner wall of the net core filter cartridge 4 through welding, and therefore, under the impact of waste water, the net core filter cartridge 4 can rotate to realize back flushing of particles attached in the net core filter cartridge 4, and convenience of sewage discharge is improved; the top wall of the upper shell 1 is provided with the exhaust port 13, so that waste water with higher temperature can be radiated, the stability of the air pressure inside and outside the filter can be kept, and the filter can keep the stability of the filter.

Referring to fig. 1 and 2, a deflector 7 is disposed in the lower housing 2, the deflector 7 is disposed obliquely, one end of the deflector 7 close to the upper housing is disposed in an arc shape and is adapted to the diameter of the net core filter cartridge 4, the bottom end of the deflector 7 is connected to one end of the bottom wall of the lower housing 2 close to the water inlet 21 by welding, and one end of the deflector 7 close to the upper housing 1 is provided with a one-way valve 23; the lower shell 2 is internally provided with a shunt tube 22, the shunt tube 22 is communicated with the water inlet 21 through welding, and the outer wall of the shunt tube 22 is communicated with a flushing branch pipe 221, so that flushing water can be injected towards the outer space of the net core filter cylinder 4 to flush impurities on the inner wall of the net core filter cylinder 4; the end of the shunt tube 22, which is away from the water inlet 21, passes through the guide plate 7, so that waste water can be directly led into the net core filter cylinder 4, impurities can be attached to the inner wall of the net core filter cylinder 4, and the impurities can be conveniently flushed down by backwashing.

The implementation principle of the filter for the wastewater lifting pump is as follows: the waste water is introduced into the lower shell 2 through the water inlet 21, the waste water enters the net core filter cylinder 4 through the shunt tube 22 and the one-way valve 23, the net core filter cylinder 4 can intercept particle suspended matters in the waste water, the waste water passes through the net core filter cylinder 4 and is introduced into the lifting pump body through the water outlet 11, and therefore filtration of the particle suspended matters in the waste water is achieved, and safety of the lifting pump during operation is guaranteed;

when the surface of the net core filter cartridge 4 is more in suspended particles, the pressure difference between the water inlet 21 and the water outlet 11 is generated, and the washing water can be injected into the space outside the net core filter cartridge 4 through the washing branch pipe 221, so that the net core filter cartridge 4 is backwashed, impurities on the inner wall of the net core filter cartridge 4 can be washed and fall down, and the impurities can be discharged out of the filter through the disassembly of the connecting flange 6.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. A filter for a wastewater lift pump, characterized by: the device comprises an upper shell (1) and a lower shell (2) which are communicated with each other, wherein a water inlet (21) is formed in the side wall of the lower shell (2), a water outlet (11) is formed in the side wall of the upper shell (1), and the water outlet (11) of the upper shell (1) is communicated with a lifting pump; the novel filter is characterized in that the upper shell (1) is rotationally connected with a rotating shaft (3), a net core filter cylinder (4) is arranged in the upper shell (1), the net core filter cylinder (4) is located outside the rotating shaft (3), the net core filter cylinder (4) and the upper shell (1) are coaxially arranged, a connecting disc (31) is sleeved on the outer wall of the rotating shaft (3), the peripheral wall of the connecting disc (31) abuts against the inner wall of the net core filter cylinder (4), and the connecting disc (31) drives the net core filter cylinder (4) to rotate.

2. A filter for a wastewater lift pump according to claim 1, characterized in that: one end of the rotating shaft (3) deviating from the lower shell (2) penetrates through the upper shell (1), one end of the rotating shaft (3) extending out of the upper shell (1) is provided with a tight supporting column (32), and the diameter of the tight supporting column (32) is larger than that of the rotating shaft (3).

3. A filter for a wastewater lift pump according to claim 2, characterized in that: the utility model discloses a support tight post, including support tight post (32), support tight post (32) end wall and be provided with connecting rod (33), connecting rod (33) deviate from one end of supporting tight post (32) and are provided with locating lever (5), locating lever (5) vertical setting, upper housing (1) roof perisporium is provided with spacing ring (12), spacing groove (51) have been seted up to one side that locating lever (5) are close to spacing ring (12), spacing ring (12) support in spacing groove (51).

4. A filter for a wastewater lift pump according to claim 1, characterized in that: the connection part of the rotating shaft (3) and the upper shell (1) is provided with a buffer bearing (34), and the buffer bearing (34) is used for reducing abrasion between the rotating shaft (3) and the upper shell (1).

5. A filter for a wastewater lift pump according to claim 1, characterized in that: the end walls of the upper shell (1) and the lower shell (2) which are close to each other are provided with connecting flanges (6).

6. A filter for a wastewater lift pump according to claim 1, characterized in that: the waste water filter is characterized in that a guide plate (7) is arranged in the lower shell (2), the guide plate (7) is obliquely arranged, and the guide plate (7) guides the waste water in the lower shell (2) towards the inner direction of the net core filter cylinder (4).

7. A filter for a wastewater lift pump according to claim 6 wherein: be provided with shunt tubes (22) in lower casing (2), shunt tubes (22) one end passes guide plate (7), the intercommunication of last casing (1) and lower casing (2) is provided with check valve (23), shunt tubes (22) lateral wall intercommunication has branch flushing pipe (221), branch flushing pipe (221) are located guide plate (7) and deviate from shunt tubes (22) open-ended one side.

8. A filter for a wastewater lift pump according to claim 1, characterized in that: an exhaust port (13) is formed in the top wall of the upper shell (1).