CN112628151A

CN112628151A - Automatic detect centrifugal water pump that fills water exhaust

Info

Publication number: CN112628151A
Application number: CN202110038133.8A
Authority: CN
Inventors: 金定桂
Original assignee: Zhengzhou Patuso Trading Co ltd
Current assignee: Zhengzhou Patuso Trading Co ltd
Priority date: 2021-01-12
Filing date: 2021-01-12
Publication date: 2021-04-09

Abstract

The invention discloses a centrifugal water pump for automatically detecting water filling and air exhausting, which comprises a main pump, a control mechanism and a power mechanism, wherein the control mechanism and the power mechanism are arranged at the rear side of the main pump, the upper side of the main pump is provided with a detection mechanism, a suction mechanism and a reciprocating mechanism, an auxiliary reciprocating pump is arranged above the main pump, the reciprocating pump can obtain very high exhaust pressure, the flow rate is irrelevant to the pressure, the suction performance is good, the efficiency is higher, when water pumping is required to be started, a motor is directly started, the reciprocating pump can start working to fill liquid into the main pump, a gas-liquid detection structure is arranged above the main pump, so that when the main pump is filled with the liquid, a main shaft and an impeller are directly connected to start the water pumping operation of the centrifugal main pump, the reciprocating pump can synchronously cut off the power, the kinetic energy loss of the main shaft is reduced, meanwhile, the invention realizes, the use difficulty of the centrifugal pump is reduced.

Description

Automatic detect centrifugal water pump that fills water exhaust

Technical Field

The invention relates to a centrifugal pump capable of automatically detecting water filling and air exhausting, and mainly relates to the technical field of centrifugal pump air exhausting.

Background

A pump is a machine that delivers or pressurizes a fluid. It transfers the mechanical energy of the prime mover or other external energy to the liquid, causing the liquid energy to increase. The pump is mainly used for conveying liquid such as water, oil, acid-base liquid, emulsion, suspension emulsion and liquid metal, and can also be used for conveying liquid, gas mixture and liquid containing suspended solid. Pumps can be generally classified by their operating principle into three types, positive displacement pumps, dynamic pumps and other types of pumps. In addition to classification by theory of operation, classification and naming may be by other methods. For example, the driving method may be classified into an electric pump, a turbine pump, and the like; can be divided into a single-stage pump and a multi-stage pump according to the structure; can be divided into a boiler feed pump, a metering pump and the like according to the application; the liquid can be divided into a water pump, an oil pump, a slurry pump and the like according to the property of the transported liquid. According to the structure with or without shaft, the linear pump and the traditional pump can be divided. The water pump can only convey material flow taking fluid as a medium, but cannot convey solids;

centrifugal pumps are one of the most common water pump types in actual production and life, and work by utilizing the rotation of an impeller to enable water to generate centrifugal motion. Before the water pump is started, the pump shell and the water suction pipe are filled with water, then the motor is started, the impeller rotates at a high speed, the water is thrown out of the impeller under the action of centrifugal force, negative pressure is formed in the center of the impeller, the water in the water suction pool enters the impeller under the action of atmospheric pressure and also under the action of the impeller rotating at a high speed, the water is thrown out of the impeller and enters a water pressure pipeline, the step is difficult to realize in places with large height difference and needs manual water filling, the water pump is extremely inconvenient, if the pump is not filled with liquid in advance, a vacuum environment cannot be formed, the liquid cannot be sucked so as to obtain kinetic energy, but a pit in the centrifugal pump shell has the condition that more gas is not discharged, the service performance is possibly damaged, the pump at the current stage cannot detect the content of the gas in the pump body after water filling in real time, and then whether the motor is started to pump water, the invention is time-consuming and labor-consuming, has low efficiency and is difficult to realize automation, and the invention is improved aiming at the defects.

Disclosure of Invention

The invention aims to solve the technical problem of providing a centrifugal water pump for automatically detecting water filling and air exhausting, and overcomes the problems.

The invention is realized by the following technical scheme.

The invention discloses a centrifugal water pump capable of automatically detecting water filling and air discharging, which comprises a main pump, a control mechanism and a power mechanism, wherein the control mechanism and the power mechanism are arranged on the rear side of the main pump;

the detection mechanism comprises a lever box fixedly positioned on the upper side of the main pump, a lever cavity is arranged in the lever box, a lever base is fixedly arranged on the bottom wall of the lever cavity, a lever is rotatably arranged at the upper end of the lever base, the left end of the lever is rotatably connected with a rotating seat, a buoyancy block is fixedly connected to the lower side of the rotating seat, a connecting port communicated with the upper wall of the main pump cavity is arranged on the bottom wall of the lever cavity, the buoyancy block penetrates through the connecting port and is positioned at the end part of the main pump cavity and is connected with a sealing plate, a gap is formed between the buoyancy block and the connecting port to allow air to pass through, the connecting port can be sealed when the sealing plate rises and is tightly attached to the top wall of the main pump cavity, the right end of the lever is rotatably connected with a;

suction mechanism including connect in inlet tube on the main pump chamber left wall, but inlet tube lower extreme suction water, the inlet tube side is connected with the suction tube, the fixed control box that is equipped with in main pump rear side, the control box upside is equipped with the support column, the support column reaches the fixed suction case that is equipped with of lever case upside, the suction incasement is equipped with the suction chamber of right open-ended, it slides in the suction chamber and is equipped with the smooth core of suction, on the suction chamber left wall with suction tube upper end intercommunication, the smooth core right-hand member swivelling joint of suction has one end to extend to the rocker on suction case right side, work as when the smooth core of suction removes about can with water in the suction tube is taken out and is come the machine to push in the main pump intracavity makes its water.

Furthermore, the water inlet mechanism comprises a one-way valve connected to the lower end of the water inlet pipe, a one-way valve cavity is arranged in the one-way valve, a one-way valve core is arranged on the inner wall of the one-way valve cavity in a sliding mode, four valve core ports are evenly formed in the one-way valve core and communicated with the one-way valve cavity, the upper side of the one-way valve cavity is elastically connected with the one-way valve cavity through a spring, a water suction pipe is connected to the lower side of the one-way valve, a filter screen head is connected to the lower end of the water suction pipe, a filter screen cavity is formed in the filter screen head, when the suction pipe starts to pump water, the one-way valve core rises to suck water filtered by the filter screen head into the water inlet pipe through the filter screen cavity, and when the suction pipe starts to press water, the one-way valve core descends to.

Furthermore, power unit include fixed connection in the backup pad of control box rear side, be equipped with the control chamber in the control box, the fixed motor that is equipped with of backup pad upside, the motor left side is equipped with and extends to the main shaft in the control chamber, main shaft left end fixedly connected with driving disc, be equipped with left open-ended driving disc chamber in the driving disc, evenly be equipped with the initiative spline groove on the driving disc intracavity wall, the motor provides rotary power for the device is whole.

Further, the reciprocating mechanism comprises a driven belt pulley connected with the shaft key, a driving belt pulley is connected with the outer side of the double-sided key ring, a belt pulley cavity with a leftward opening is formed between the driving belt pulley and the smooth base, the left side of the double-sided key ring is elastically connected with the right wall of the belt pulley cavity through a belt pulley spring, when the double-sided key ring is connected with the key groove base, the driving belt pulley can be driven to rotate by the main shaft, when the double-sided key ring slides to the smooth base on the right side, the main shaft is separated from the power connection with the driving belt pulley, a belt is arranged on the driving belt pulley, the upper end of the belt is connected with the driven belt pulley, the left side of the driven belt pulley is connected with a driving bevel gear through a belt pulley shaft, and the front side of the driving bevel gear is engaged with the, the front side of the driven bevel gear is rotatably connected with a crank, the left side of the crank is rotatably connected with the rocker, and when the driven bevel gear starts to rotate, the rocker can drive the suction sliding core to move left and right to suck moisture.

Further, the control mechanism comprises a main impeller positioned in the main pump cavity, an impeller shaft extending into the control cavity is arranged on the right side of the main impeller, the lower end of the vertical rod extends into the control cavity and is connected with a push block, a clamping ring cavity is arranged on the left side of the push block, a sliding power disc capable of sliding left and right is connected to the impeller shaft in a power connection mode, six clamping ring seats are uniformly arranged on the left side of the sliding power disc in a fixed mode, the left end of the sliding power disc is connected with a clamping ring corresponding to the shape of the clamping ring cavity, a spline is arranged on the sliding power disc and can be in power connection with the meshing of the driving spline grooves, when the vertical rod moves downwards, the sliding power disc can be pushed rightwards by the push block, the spline is in power connection with the driving disc cavity, so that the power of the main shaft is transmitted to the main impeller, and the clamping ring cavity is clamped by, the sealing plate is characterized in that the sealing plate is provided with two button cavities which are vertically symmetrical, a button is arranged in each button cavity in a sliding mode, the left end of the button extends into the corresponding driving disc cavity, the right side of the button is elastically connected to the right wall of each button cavity through a button spring, a button shaft extending to the right side of the control box is arranged on the right side of the button, a push ring is arranged at the right end of the button shaft, and when the sliding power disc moves rightwards, the key groove base is disconnected with the double-sided key ring through the button shaft, so that the pumping mechanism and the reciprocating mechanism are stopped to achieve the purpose of reducing energy consumption.

Furthermore, the rear side of the main pump cavity is connected with a water outlet pipe through a water outlet, the rear side of the lever box is connected with a pushing box, a pushing cavity communicated with the lever cavity is arranged in the pushing box, a pushing sliding core is arranged in the pushing cavity in a sliding mode, the rear side of the pushing sliding core is connected with a sealing plate extending into the water outlet pipe, the front side of the pushing sliding core is provided with a rack extending into the lever cavity, the lower side of the rack is meshed with a steering gear, the lower side of the steering gear is meshed with a rotating gear, the steering gear and the rotating gear are connected onto the rear wall of the lever cavity through a gear base, the front side of the rotating gear is meshed with the rear side of a buoyancy block, the rear side of the buoyancy block is provided with a rack structure, when the buoyancy block descends, the water outlet pipe is disconnected from the outside, when the buoyancy block ascends, the water outlet pipe recovers, and when the main pump, the problem that water can be fully pumped due to air pressure loss caused by the communication of the water outlet pipe is solved.

The invention has the beneficial effects that: the auxiliary reciprocating pump is arranged above the main pump, the reciprocating pump can obtain high discharge pressure, the flow is irrelevant to the pressure, the suction performance is good, the efficiency is high, when water pumping is required to be started, the motor is directly started, the reciprocating pump can start to work to fill liquid into the main pump, and a gas-liquid detection structure is arranged above the main pump, so that when the main pump is filled with the liquid, the main shaft and the impeller are directly connected to start the water pumping operation of the centrifugal main pump, the reciprocating pump can synchronously cut off the power, the kinetic energy loss of the main shaft is reduced, meanwhile, the automatic centrifugal pump realizes the automation of the treatment process, greatly improves the treatment efficiency, saves the labor force and reduces the use difficulty of the centrifugal pump.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the structure a-a in fig. 1.

FIG. 3 is a schematic diagram of B-B in FIG. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1-3, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The centrifugal water pump capable of automatically detecting water filling and air discharging described in conjunction with fig. 1-3 comprises a main pump 10, and a control mechanism 100 and a power mechanism 101 which are arranged at the rear side of the main pump 10, wherein a detection mechanism 102, a suction mechanism 103 and a reciprocating mechanism 104 are arranged at the upper side of the main pump 10, a water inlet mechanism 105 is arranged at the lower side of the main pump 10, a main pump cavity 11 is arranged in the main pump 10, and two support seats 23 which are symmetrical in the front and back are connected at the lower side of the main pump 10 for supporting;

the detection mechanism 102 includes a lever box 64 fixedly positioned at an upper side of the main pump 10, a lever cavity 65 is provided in the lever box 64, a lever base 59 is fixedly arranged on the bottom wall of the lever cavity 65, a lever 58 is rotatably arranged at the upper end of the lever base 59, the left end of the lever 58 is rotatably connected with a rotating seat 60, the lower side of the rotating seat 60 is fixedly connected with a buoyancy block 61, a connecting port 62 communicated with the upper wall of the main pump chamber 11 is arranged on the bottom wall of the lever cavity 65, the buoyancy block 61 is connected with a sealing plate 63 through the connecting port 62 at the end of the main pump chamber 11, a gap is formed between the buoyancy block 61 and the connecting port 62 for air to pass through, the connection port 62 is closed when the sealing plate 63 rises against the top wall of the main pump chamber 11, the right end of the lever 58 is rotatably connected with a vertical rod 57, and the left wall of the lever cavity 65 is provided with an air outlet 56 communicated with the outside for exhausting air;

suction mechanism 103 including connect in inlet tube 15 on the main pump chamber 11 left wall, but inlet tube 15 lower extreme suction water, inlet tube 15 side is connected with suction tube 13, the fixed control box 24 that is equipped with in main pump 10 rear side, control box 24 upside is equipped with support column 51, support column 51 reaches lever box 64 upside is fixed and is equipped with suction box 52, be equipped with right open-ended suction chamber 53 in the suction box 52, it is equipped with the smooth core 54 of suction to slide in the suction chamber 53, on the suction chamber 53 left wall with suction tube 13 upper end intercommunication, the smooth core 54 right-hand member swivelling joint of suction has one end to extend to rocker 50 on suction box 52 right side, when the smooth core 54 of suction removes about can with the water in the suction tube 13 is pumped and is come the machine to push into in the main pump chamber 11 makes its water level rise.

Beneficially, the water inlet mechanism 105 includes a one-way valve 16 connected to the lower end of the water inlet pipe 15, a one-way valve cavity 18 is arranged in the one-way valve 16, a one-way valve core 19 is slidably arranged on the inner wall of the one-way valve cavity 18, four valve core ports 17 are uniformly arranged on the one-way valve core 19 and are communicated with the one-way valve cavity 18, the upper side of the one-way valve cavity 18 is elastically connected with the one-way valve cavity 18 through a spring, a water suction pipe 20 is connected to the lower side of the one-way valve 16, a filter screen head 21 is connected to the lower end of the water suction pipe 20, a filter screen cavity 22 is arranged in the filter screen head 21, when the water suction pipe 13 starts to pump water, the one-way valve core 19 rises to suck the water filtered by the filter screen head 21 into the water inlet pipe 15 through the filter screen cavity 22, and when the water suction pipe, so that the water in the inlet pipe 15 can be introduced into the main pump chamber 11.

Beneficially, the power mechanism 101 includes a supporting plate 41 fixedly connected to the rear side of the control box 24, a control cavity 25 is arranged in the control box 24, a motor 42 is fixedly arranged on the upper side of the supporting plate 41, a main shaft 33 extending into the control cavity 25 is arranged on the left side of the motor 42, a driving disc 26 is fixedly connected to the left end of the main shaft 33, a driving disc cavity 28 with a left opening is arranged in the driving disc 26, driving spline grooves 27 are uniformly arranged on the inner wall of the driving disc cavity 28, and the motor 42 provides rotation power for the whole device.

Advantageously, the reciprocating mechanism 104 includes a driven pulley 44 keyed to the shaft, a driving pulley 35 connected to the outside of the double-sided key ring 40, a pulley cavity 36 opened to the left is formed between the driving pulley 35 and the smooth base 38, the left side of the double-sided key ring 40 is elastically connected to the right wall of the pulley cavity 36 through a pulley spring 37, when the double-sided key ring 40 is connected to the key groove base 39, the main shaft 33 can drive the driving pulley 35 to rotate, when the double-sided key ring 40 slides onto the smooth base 38 on the right side, the main shaft 33 is disconnected from the driving pulley 35, a belt 43 is disposed on the driving pulley 35, the driven pulley 44 is connected to the upper end of the belt 43, a driving bevel gear 46 is connected to the left side of the driven pulley 44 through a pulley shaft 45, and the front side of the driving bevel gear 46 is engaged with a driven bevel gear fixed to the upper side of the control box 24 through a pillar 48 The front side of the driven bevel gear 47 is rotatably connected with a crank 49, the left side of the crank 49 is rotatably connected with a rocker 50, and when the driven bevel gear 47 starts to rotate, the rocker 50 can drive the suction sliding core 54 to move left and right to suck moisture.

Beneficially, the control mechanism 100 includes a main impeller 14 located in the main pump chamber 11, the right side of the main impeller 14 is provided with an impeller shaft 30 extending into the control chamber 25, the lower end of the vertical rod 57 extends into the control chamber 25 and is connected with a push block 34, the left side of the push block 34 is provided with a snap ring chamber 78, the impeller shaft 30 is dynamically connected with a sliding power disc 75 capable of sliding left and right, the left side of the sliding power disc 75 is fixedly provided with six snap ring seats 77, the left end of the sliding power disc 75 is connected with a snap ring 76 corresponding to the shape of the snap ring chamber 78, the sliding power disc 75 is provided with a spline 74, the spline 74 can be in meshing power connection with the driving spline groove 27, when the vertical rod 57 is downward, the sliding power disc 75 is pushed to the right by the push block 34, so that the spline 74 is in power connection with the driving disc chamber 28, thereby enabling the power of the main shaft 33 to be transmitted to the main impeller 14, the snap ring cavity 78 is clamped by the snap ring 76 and can not rebound, the influence of water flow generated after the main impeller 14 starts to operate on the sealing of the sealing plate 63 can be prevented, two vertically symmetrical button cavities 79 are arranged on the driving disc 26, a button 29 is arranged in the button cavity 79 in a sliding mode, the left end of the button 29 extends into the driving disc cavity 28, the right side of the button 29 is elastically connected to the right wall of the button cavity 79 through a button spring 31, a button shaft 32 extending to the right side of the control box 24 is arranged on the right side of the button 29, a push ring 80 is arranged at the right end of the button shaft 32, and when the sliding power disc 75 moves rightwards, the key groove base 39 is separated from the double-sided key ring 40 through the button shaft 32, so that the pumping mechanism 103 and the reciprocating mechanism 104 are stopped to achieve the purpose of reducing energy consumption.

Beneficially, the rear side of the main pump cavity 11 is connected with a water outlet pipe 55 through a water outlet 12, the rear side of the lever box 64 is connected with a push box 66, a push cavity 67 communicating with the lever cavity 65 is arranged in the push box 66, a push sliding core 68 is slidably arranged in the push cavity 67, the rear side of the push sliding core 68 is connected with a sealing plate 69 extending into the water outlet pipe 55, the front side of the push sliding core 68 is provided with a rack 70 extending into the lever cavity 65, the lower side of the rack 70 is engaged with a steering gear 71, the lower side of the steering gear 71 is engaged with a rotating gear 72, the steering gear 71 and the rotating gear 72 are connected to the rear wall of the lever cavity 65 through a gear base 73, the front side of the rotating gear 72 is engaged with the rear side of the buoyancy block 61, the rear side of the buoyancy block 61 is provided with a rack structure, when the buoyancy block 61 descends, the water outlet pipe 55 is disconnected from the outside, when the buoyancy block 61 rises, the water outlet pipe 55 is restored, and when the main pump chamber 11 starts to suck water, the problem that water can be fully sucked due to the loss of air pressure caused by the communication of the water outlet pipe 55 is solved.

Sequence of mechanical actions of the whole device:

1. in the initial state, the main pump chamber 11 is empty of water, and the seal plate 63 and the connection port 62 are positioned at the lower limit position;

2. when the machine starts to work, the motor 42 is started to enable the suction sliding core 54 to start to move left and right in the suction cavity 53 through the main shaft 33, the key groove base 39, the double-sided key ring 40, the driving belt pulley 35, the belt 43, the driven belt pulley 44, the belt pulley shaft 45, the driving bevel gear 46, the driven bevel gear 47, the crank 49 and the rocker 50 to suck moisture in the suction pipe 13;

3. the suction pipe 13 is at negative pressure, the closing plate 69 closes the water outlet pipe 55, and at the moment, outside water enters the suction pipe 13 and the suction cavity 53 through the filter screen head 21, the water suction pipe 20, the one-way valve cavity 18 and the water inlet pipe 15;

4. when the suction slide core 54 moves leftwards, the inside of the water inlet pipe 15 is in positive pressure, the one-way valve core 19 is pressed down, and the connection between the water inlet pipe 15 and the water suction pipe 20 is closed, so that the water in the suction pipe 13 only can enter the main pump cavity 11, and the water can be automatically filled in the reciprocating way;

5. when the water in the main pump cavity 11 is full, the connecting port 62 is sealed by the sealing plate 63 under the pushing of the buoyancy of the water, meanwhile, the main shaft 33 is in power connection with the main impeller 14 through the buoyancy block 61, the rotating seat 60, the lever 58, the vertical rod 57, the push block 34, the sliding power disc 75, the spline 74, the driving spline groove 27, the driving disc 26 and the impeller shaft 30, meanwhile, the buoyancy block 61 opens the sealing of the sealing plate 69 on the water outlet pipe 55 through the rotating gear 72, the steering gear 71, the rack 70, the pushing sliding core 68, and formal water pumping is started, and the suction efficiency caused by the fact that the water in the pump body is not full of water contains gas can be prevented from being low;

6. meanwhile, the sliding power disc 75 enables the double-sided key ring 40 to slide rightwards through the button 29, the button shaft 32 and the push ring 80 to be separated from the power connection with the key groove base 39, so that the water pumping of the pumping sliding core 54 is stopped, and the energy consumption is reduced;

7. when the water pumping is finished, the water in the main pump cavity 11 is reduced when the motor 42 is closed, and the button spring 31 descends, so that the push block 34 integrally pulls the sliding power disc 75 back to the left, and the whole device is returned to the original position to wait for the next use.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an automatic detect centrifugal pump who fills water exhaust which characterized in that: the device comprises a main pump, a control mechanism and a power mechanism, wherein the control mechanism and the power mechanism are arranged on the rear side of the main pump; the detection mechanism comprises a lever box fixedly positioned on the upper side of the main pump, a lever cavity is arranged in the lever box, a lever base is fixedly arranged on the bottom wall of the lever cavity, a lever is rotatably arranged at the upper end of the lever base, the left end of the lever is rotatably connected with a rotating seat, a buoyancy block is fixedly connected to the lower side of the rotating seat, a connecting port communicated with the upper wall of the main pump cavity is arranged on the bottom wall of the lever cavity, the buoyancy block penetrates through the connecting port and is positioned at the end part of the main pump cavity and is connected with a sealing plate, a gap is formed between the buoyancy block and the connecting port to allow air to pass through, the connecting port can be sealed when the sealing plate rises and is tightly attached to the top wall of the main pump cavity, the right end of the lever is rotatably connected with a; suction mechanism including connect in inlet tube on the main pump chamber left wall, but inlet tube lower extreme suction water, the inlet tube side is connected with the suction tube, the fixed control box that is equipped with in main pump rear side, the control box upside is equipped with the support column, the support column reaches the fixed suction case that is equipped with of lever case upside, the suction incasement is equipped with the suction chamber of right open-ended, it slides in the suction chamber and is equipped with the smooth core of suction, on the suction chamber left wall with suction tube upper end intercommunication, the smooth core right-hand member swivelling joint of suction has one end to extend to the rocker on suction case right side, work as when the smooth core of suction removes about can with water in the suction tube is taken out and is come the machine to push in the main pump intracavity makes its water.

2. The centrifugal water pump for automatically detecting water filling and air discharging according to claim 1, wherein: the water inlet mechanism comprises a one-way valve connected to the lower end of the water inlet pipe, a one-way valve cavity is arranged in the one-way valve, a one-way valve core is arranged on the inner wall of the one-way valve cavity in a sliding mode, four valve core ports are evenly formed in the one-way valve core and communicated with the one-way valve cavity, the upper side of the one-way valve cavity is elastically connected with the one-way valve cavity through a spring, a water suction pipe is connected to the lower side of the one-way valve, a filter screen head is connected to the lower end of the water suction pipe, a filter screen cavity is formed in the filter screen head, when the suction pipe starts to pump water, the one-way valve core rises to suck water filtered by the filter screen head into the water inlet pipe through the filter screen cavity, and when the suction pipe starts to press water, the one-way valve core.

3. The centrifugal water pump for automatically detecting water filling and air discharging according to claim 1, wherein: the power mechanism comprises a supporting plate fixedly connected to the rear side of the control box, a control cavity is arranged in the control box, a motor is fixedly arranged on the upper side of the supporting plate, a main shaft extending into the control cavity is arranged on the left side of the motor, a driving disc is fixedly connected to the left end of the main shaft, a driving disc cavity with an opening towards the left is arranged in the driving disc, driving spline grooves are evenly formed in the inner wall of the driving disc cavity, and the motor provides rotating power for the whole device.

4. The centrifugal water pump for automatically detecting water filling and air discharging according to claim 1, wherein: the reciprocating mechanism comprises a driven belt pulley connected with the shaft key, a driving belt pulley is connected with the outer side of the double-sided key ring, a belt pulley cavity with a left opening is formed between the driving belt pulley and the smooth base, the left side of the double-sided key ring is elastically connected with the right wall of the belt pulley cavity through a belt pulley spring, when the double-sided key ring is connected with the key groove base, the driving belt pulley can be driven to rotate by the main shaft, when the double-sided key ring slides to the smooth base on the right side, the main shaft is separated from the driving belt pulley in power connection, a belt is arranged on the driving belt pulley, the upper end of the belt is connected with the driven belt pulley, the left side of the driven belt pulley is connected with a driving bevel gear through a belt pulley shaft in power connection, and the front side of the driving bevel gear, the front side of the driven bevel gear is rotatably connected with a crank, the left side of the crank is rotatably connected with the rocker, and when the driven bevel gear starts to rotate, the rocker can drive the suction sliding core to move left and right to suck moisture.

5. The centrifugal water pump for automatically detecting water filling and air discharging according to claim 1, wherein: the control mechanism comprises a main impeller positioned in the main pump cavity, an impeller shaft extending into the control cavity is arranged on the right side of the main impeller, a push block is connected into the control cavity at the lower end of the vertical rod, a snap ring cavity is arranged on the left side of the push block, a sliding power disc capable of sliding left and right is connected onto the impeller shaft in a power connection manner, six snap ring seats are uniformly arranged on the left side of the sliding power disc in a fixed manner, the left end of the sliding power disc is connected with a snap ring corresponding to the shape of the snap ring cavity, a spline is arranged on the sliding power disc and can be meshed with the driving spline groove in a power connection manner, when the vertical rod moves downwards, the sliding power disc can be pushed rightwards by the push block, so that the spline is in power connection with the driving disc cavity, the power of the main shaft is transmitted to the main impeller, the snap ring cavity is clamped by the, the sealing plate is characterized in that the sealing plate is provided with two button cavities which are vertically symmetrical, a button is arranged in each button cavity in a sliding mode, the left end of the button extends into the corresponding driving disc cavity, the right side of the button is elastically connected to the right wall of each button cavity through a button spring, a button shaft extending to the right side of the control box is arranged on the right side of the button, a push ring is arranged at the right end of the button shaft, and when the sliding power disc moves rightwards, the key groove base is disconnected with the double-sided key ring through the button shaft, so that the pumping mechanism and the reciprocating mechanism are stopped to achieve the purpose of reducing energy consumption.

6. The centrifugal water pump for automatically detecting water filling and air discharging according to claim 1, wherein: the rear side of the main pump cavity is connected with a water outlet pipe through a water outlet, the rear side of the lever box is connected with a pushing box, a pushing cavity communicated with the lever cavity is arranged in the pushing box, a pushing sliding core is arranged in the pushing cavity in a sliding mode, the rear side of the pushing sliding core is connected with a sealing plate extending into the water outlet pipe, a rack extending into the lever cavity is arranged on the front side of the pushing sliding core, a steering gear is meshed with the lower side of the rack, a rotating gear is meshed with the lower side of the steering gear, the steering gear and the rotating gear are connected onto the rear wall of the lever cavity through a gear base, the front side of the rotating gear is meshed with the rear side of a buoyancy block, a rack structure is arranged on the rear side of the buoyancy block, when the buoyancy block descends, the water outlet pipe is disconnected from the outside, when the buoyancy block ascends, the water outlet pipe recovers, and when the, the problem that water can be fully pumped due to air pressure loss caused by the communication of the water outlet pipe is solved.