CN111075733A

CN111075733A - Mixed flow pump with suction device

Info

Publication number: CN111075733A
Application number: CN201911366306.8A
Authority: CN
Inventors: 夏国春; 夏州栋
Original assignee: Hangzhou Yezhou Pump Co ltd
Current assignee: Hangzhou Yezhou Pump Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-04-28
Anticipated expiration: 2039-12-26
Also published as: CN111075733B

Abstract

The invention discloses a mixed flow pump with a suction device, and relates to the technical field of mixed flow pumps; the self-priming water pump comprises a main body, a water inlet, a water outlet, an impeller and a motor, wherein a first connecting port is arranged at a position, close to the water inlet, of the main body, a second connecting port is arranged at a position, close to the water outlet, of the main body, the first connecting port is connected with a vacuum pump through a first pipeline, and the second connecting port is connected with a self-priming pump through a second pipeline; the utility model discloses a motor, including main part, frame, motor, output shaft, blade wheel, motor, the main part top is equipped with the frame, be equipped with between frame and the main part and be used for connecting each other the frame, the rigid coupling has the impeller shaft on the impeller, lie in the frame below after the main part is worn out to impeller shaft top, the motor rigid coupling is at the frame upside, the output shaft of motor is down, the tip of output shaft is equipped with the cross section and is the slot of hexagon, the top and the slot adaptation of impeller shaft. The invention saves time and labor for pumping water, is convenient to maintain and has higher automation degree.

Description

Mixed flow pump with suction device

Technical Field

The invention belongs to the technical field of mixed flow pumps, and particularly relates to a mixed flow pump with an inhalation device.

Background

The agricultural irrigation pump generally adopts an axial-flow type water pump and a mixed-flow type water pump. The two pumps have the advantages of large flow, low lift, high efficiency and the like, and are widely used in rural pump houses.

The suction end of the axial flow pump is positioned below the water surface, and the water can be supplied by directly starting the power supply during working, so that the axial flow pump is a relatively convenient irrigation and drainage facility. The pump has the disadvantages that the maintenance is inconvenient, the whole pump needs to be disassembled and placed on the ground for disassembly so as to be maintained, and under the condition of shortage of land resources, the space of a pump room is small, the height of the field is limited, and the maintenance is very difficult.

The traditional mixed flow pump is generally horizontally installed, a motor and the pump are installed separately and are driven by a belt, a bottom valve needs to be installed, the occupied area is large, and the efficiency of a unit is low due to resistance generated by the bottom valve and low belt transmission efficiency; after technical improvement, the existing vertical installation is more. The mixed flow pump needs to be filled with a certain amount of water firstly because the impeller end is far away from the water surface, and the mixed flow pump can pump water only by manually filling the water pump while starting the water pump, thereby wasting time and labor and being very inconvenient.

Disclosure of Invention

The invention aims to overcome the defects of time and labor waste in water pumping in the prior art, and provides a mixed flow pump with a suction device, which is time-saving and labor-saving.

In order to achieve the purpose, the invention adopts the following technical scheme:

a mixed flow pump with a suction device comprises a main body, a water inlet, a water outlet, an impeller and a motor, wherein the water inlet is formed in one side of the main body, the water outlet is formed in the other side of the main body, the impeller is arranged in the main body, the motor is fixedly connected to the main body and used for rotating the impeller, a first connecting port is formed in the position, close to the water inlet, of the main body, a second connecting port is formed in the position, close to the water outlet, of the main body, the first connecting port is connected with a vacuum pump through a first pipeline, and; the utility model discloses a motor, including main part, frame, motor, output shaft, blade wheel, motor, the main part top is equipped with the frame, be equipped with between frame and the main part and be used for connecting each other the frame, the rigid coupling has the impeller shaft on the impeller, lie in the frame below after the main part is worn out to impeller shaft top, the motor rigid coupling is at the frame upside, the output shaft of motor is down, the tip of output shaft is equipped with the cross section and is the slot of hexagon, the top and the slot adaptation of impeller shaft. The water inlet is connected with the hard pipe, the end part of the hard pipe is inserted into water, when the water pump is started, the vacuum pump, the self-sucking pump and the motor are started simultaneously, the self-sucking pump injects water into the water outlet, so that a water film is formed at the main body, a sealed environment is formed at the hard pipe, when the vacuum pump is started, the pressure at the hard pipe is reduced, the water surface rises in the hard pipe, when the water rises to the impeller, the water pumping is successful, and the water pumping is time-saving and labor-saving; in addition, the output shaft of the motor is detachably connected with the impeller shaft, so that later maintenance is facilitated.

Preferably, the first pipeline is provided with a control mechanism for automatically closing the vacuum pump and the self-priming pump after water is introduced. After first pipeline leads to water, water has arrived the impeller this moment, and vacuum pump and self priming pump do not need work, and control mechanism in time closes vacuum pump and self priming pump.

Preferably, the control mechanism comprises a front plate, a rear plate, a shell positioned between the front plate and the rear plate, and an inner ring positioned between the front plate and the rear plate, the front plate, the rear plate and the shell are fixedly connected with each other, the inner ring is rotatably connected with the front plate, the inner ring is positioned in the shell, two ends of the shell bend towards the inner ring and are slidably connected to the outer side wall of the inner ring, the front plate, the rear plate, the shell and the inner ring form a C-shaped cavity, two ends of the cavity face downward, the cavity comprises a sliding cavity and accommodating cavities positioned at two ends of the sliding cavity, infrared sensors are arranged in the accommodating cavities, the infrared sensors are connected with a vacuum pump and a self-priming pump, a floating ball adaptive to the sliding cavity is arranged in one of the accommodating cavities, the floating ball is in clearance fit with a port of the sliding cavity, the floating ball is fixedly connected to the outer side of the inner ring, the utility model discloses a switch valve, including pivot, front bezel, inner ring and pivot, the pivot is connected with the front bezel, be equipped with between inner ring and the pivot and be used for connecting rod each other, be equipped with first stopper, second stopper in the inner ring, the connecting rod supports and leans on at first stopper upside or second stopper upside, be equipped with the switching-over valve on the first pipeline, the switching-over valve divide into inlet channel, outlet conduit with first pipeline, the inlet channel is located the one side that the switching-over valve is close to the main part, cavity one end is connected with the switching-over valve through first switching-over pipeline, the cavity other end is connected with the switching-over valve through second switching-over pipeline, be equipped with the second pivot that is used for switching over on the switching-over valve, be equipped with drive gear between pivot and the second. When water enters one end of the cavity, the floating ball rises to the end face of the sliding cavity, enters the other accommodating cavity under the action of the vacuum pump, and then the other infrared sensor is shielded by the floating ball to send a signal for stopping running; the connecting rod rotates to drive the rotating shaft to rotate, the rotating shaft drives the second rotating shaft to rotate, so that the reversing valve is reversed, and the reversing valve is used as the prior art and is not unfolded; the valve mechanism may prevent air from entering the wand from the first conduit after the vacuum pump has been switched off.

Preferably, the valve mechanism comprises a sleeve fixedly connected to the water inlet pipeline, a valve plate penetrating through the bottom surface of the sleeve and the upper side of the water inlet pipeline, an electromagnet positioned at the top end inside the sleeve and used for adsorbing the valve plate, a push rod penetrating through the top surface of the sleeve and the electromagnet and used for pushing the valve plate, a cam positioned at the top end of the push rod, a driven gear fixedly connected with the cam, and a spring positioned at the top end of the sleeve and used for pushing the push rod to enable the push rod to be always abutted against the cam, wherein a driving gear is fixedly connected to the rotating shaft and meshed with the driven. Electro-magnet and vacuum pump connection, the electro-magnet stops with the vacuum pump is synchronous to be opened, under the initial condition, the valve plate is closed the inlet channel, when the vacuum pump starts, the electro-magnet operation, inhale the valve plate on the electro-magnet, the inlet channel is opened, then the magnetic force of electro-magnet weakens, when the pivot pivoted, driven gear rotates the round, the cam rotates the round, the action on the one after, the push rod is accomplished, when the valve plate was closed the inlet channel, the magnetic force of electro-magnet is not enough to adsorb the valve plate, therefore the valve plate keeps closing of inlet channel.

Preferably, a sealing ring is arranged between the inner ring and the front plate, and a sealing ring is arranged between the inner ring and the rear plate. The sealing performance is increased.

Preferably, the housing, the front plate and the rear plate are of an integrally molded structure. The manufacture is simple.

Preferably, the motor is connected with the base through a bolt. The motor is convenient to disassemble.

The invention has the beneficial effects that: the invention saves time and labor for pumping water, is convenient to maintain and has higher automation degree.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is an enlarged view taken at A of FIG. 1;

FIG. 3 is a cross-sectional view B-B of FIG. 2;

fig. 4 is a schematic view showing that the floating ball moves into the other chamber under the action of the vacuum pump while the valve plate closes the water inlet pipe.

In the figure: the device comprises a main body 1, a water inlet 2, a water outlet 3, an impeller 4, a motor 5, a first connecting port 6, a second connecting port 7, a vacuum pump 8, a self-priming pump 9, a first pipeline 10, a second pipeline 11, a front plate 12, a rear plate 13, a shell 14, an inner ring 15, a cavity 16, a sliding cavity 17, a containing cavity 18, a floating ball 19, a rotating shaft 20, a connecting rod 21, a first limiting block 22, a second limiting block 23, a reversing valve 24, a water inlet pipeline 25, a water outlet pipeline 26, a first reversing pipeline 27, a second reversing pipeline 28, a second rotating shaft 29, a sleeve 30, an electromagnet 31, a push rod 32, a valve plate 33, a cam 34, a driven gear 35, a driving gear 36, a machine base 37, a machine frame 38, an impeller shaft 39, a slot.

Detailed Description

The invention is explained in further detail below with reference to the figures and the detailed description:

example (b):

referring to fig. 1 to 4, a mixed flow pump with a suction device includes a main body 1, a water inlet 2 located at one side of the main body 1, a water outlet 3 located at the other side of the main body 1, an impeller 4 located in the main body 1, and a motor 5 fixedly connected to the main body 1 and used for rotating the impeller 4, wherein the main body 1 is provided with a first connection port 6 near the water inlet 2, the main body 1 is provided with a second connection port 7 near the water outlet 3, the first connection port 6 is connected with a vacuum pump 8 through a first pipeline 10, and the second connection port 7 is connected with a self-priming pump 9 through a second pipeline 11; the automatic water-saving device comprises a main body 1, a first pipeline, a motor 5 and a self-priming pump, wherein a control mechanism for automatically closing the vacuum pump and the self-priming pump after water is introduced is arranged on the first pipeline, a base 37 is arranged above the main body 1, a frame 38 for connecting the base 37 and the main body 1 is arranged between the base 37 and the main body 1, an impeller shaft 39 is fixedly connected to the impeller 4, the top end of the impeller shaft 39 penetrates through the main body 1 and is positioned below the base 37, the motor 5 is fixedly connected to the upper side of the base 37, the output shaft of the motor 5 faces downwards, an insertion groove 40 with a hexagonal cross section is formed in the end portion of the output shaft.

The control mechanism comprises a front plate 12, a rear plate 13, a shell 14 positioned between the front plate and the rear plate, and an inner ring 15 positioned between the front plate and the rear plate, wherein the shell 14, the front plate and the rear plate are of an integrally formed structure, the front plate, the rear plate and the shell are fixedly connected with each other, the inner ring is rotatably connected with the front plate, the inner ring is positioned in the shell, two ends of the shell bend towards the inner ring and are connected on the outer side wall of the inner ring in a sliding manner, the front plate, the rear plate, the shell and the inner ring form a C-shaped cavity 16, two ends of the cavity 16 face downwards, the cavity comprises a sliding cavity 17 and a containing cavity 18 positioned at two ends of the sliding cavity 17, a sealing ring is arranged between the inner ring and the front plate, and a sealing ring is arranged between the; the vacuum pump is characterized in that an infrared sensor 41 is arranged in the accommodating cavity 18, the infrared sensor 41 is connected with a vacuum pump 8 and a self-priming pump 9, a floating ball 19 matched with the sliding cavity is arranged in one of the accommodating cavities, the floating ball 19 is in clearance fit with the port of the sliding cavity, the floating ball is fixedly connected to the outer side of the inner ring, a rotating shaft 20 coaxial with the inner ring 15 is arranged on the front plate in a penetrating manner, the rotating shaft 20 is rotatably connected with the front plate, a connecting rod 21 used for connecting the inner ring and the rotating shaft is arranged between the inner ring and the inner ring, a first limiting block 22 and a second limiting block 23 are arranged in the inner ring, the connecting rod is abutted against the upper side of the first limiting block or the upper side of the second limiting block, a reversing valve 24 is arranged on the first pipeline, the reversing valve 24 divides the first pipeline into a water inlet pipeline 25 and a water outlet pipeline 26, the water inlet pipeline 25, the other end of the cavity 16 is connected with a reversing valve 24 through a second reversing pipeline 28, a second rotating shaft 29 for switching is arranged on the reversing valve 24, a transmission gear is arranged between the rotating shaft 20 and the second rotating shaft 29, a valve mechanism for closing the water inlet pipeline 25 after the rotating shaft 20 rotates is arranged on the water inlet pipeline 25, the valve mechanism comprises a sleeve 30 fixedly connected on the water inlet pipeline 25, a valve plate 33 penetrating through the bottom surface of the sleeve 30 and the upper side of the water inlet pipeline 25, an electromagnet 31 positioned at the top end inside the sleeve 30 and used for adsorbing the valve plate, a push rod 32 penetrating through the top surface of the sleeve 30 and the electromagnet 31 and used for pushing the valve plate 33, a cam 34 positioned at the top end of the push rod 32, a driven gear 35 fixedly connected with the cam 34, a spring positioned at the top end of the sleeve 30 and used for pushing the push rod 32 to be always abutted against the cam 34, a driving, the electromagnet 31 is connected with the vacuum pump 8.

Principle of embodiment:

in the initial state, the valve plate closes the water inlet pipeline; the motor, the vacuum pump 8, the electromagnet and the self-sucking pump are controlled by a switch, the switch is turned on, the electromagnet 31 is electrified, the electromagnet 31 adsorbs the valve plate, the valve plate 33 is turned on, after the adsorption, the current of the electromagnet 31 is changed, the magnetic force of the electromagnet 31 is reduced, and the magnetic force is reduced to the strength capable of only adsorbing the valve plate 33; then, motor, vacuum pump, 9 synchronous operation from the priming pump, be connected with the hard tube on the water inlet of main part 1, the hard tube tip inserts the aquatic, 9 operations from the priming pump, at 3 injected water of delivery port, the water of injection gets into main part 1, forms the water film in main part 1 to make the interior sealed environment that forms of hard tube, the vacuum pump operation causes the interior atmospheric pressure of hard tube to reduce, the surface of water rises, when the surface of water rises to impeller department, the impeller pumps water from delivery port 3.

It should be noted that, when the surface of water arrived the impeller, water also can reach the one end of cavity 16 through valve mechanism from inlet channel 25, floater 19 is located this end of cavity 16, floater 19 is under the effect of buoyancy, certain distance of floater 19 come-up, when floater 19 arrived the terminal surface in sliding chamber, floater 19 arrived the other end of cavity 16 under the effect of vacuum pump, floater 19 is sensed to infrared ray sensor 41 in another appearance chamber, send signal to vacuum pump 8, self priming pump 9, vacuum pump 8, self priming pump 9 stall.

In the above process, when the floating ball slides in the sliding cavity, the floating ball 19 drives the inner ring 15 to rotate, the inner ring 15 drives the connecting rod to rotate, the connecting rod rotates to the second limiting block from the first limiting block, the connecting rod drives the rotating shaft to rotate, the rotating shaft 20 drives the second rotating shaft 29 to rotate through the transmission gear, and the original 'water inlet pipeline is connected with the first reversing pipeline 27', the water outlet pipeline 26 is connected with the second reversing pipeline 28 'to be converted into' the water inlet pipeline is connected with the second reversing pipeline 28 ', and the water outlet pipeline 26 is connected with the first reversing pipeline 27'; meanwhile, the rotating shaft 20 drives the driving gear 36 to rotate, the driven gear 35 is driven to rotate, the cam 34 is driven to rotate, the push rod 32 completes the action of one-by-one in one rotation of the cam, the push rod 32 pushes the valve plate 33 downwards to close the water inlet pipeline, and after the distance between the valve plate 33 and the electromagnet 31 exceeds a certain distance, the electromagnet 31 cannot adsorb the valve plate 33 onto the electromagnet 31; then the electromagnet 31 and the vacuum pump 8 stop running synchronously, and the valve plate 33 closes the water inlet pipeline all the time; during the subsequent drainage, a negative pressure will build up in the rigid tube, and the valve plate 33 will prevent air from entering the rigid tube from the first conduit after the vacuum pump is turned off.

When the drainage is completed, the motor 5 is turned off. At this time, the floating ball 19 moves to the other end of the cavity, and the reversing valve 24 switches the pipeline connection, so that the initial state is returned, and the switch is directly turned on when the device runs next time, and the process is the same as the above.

Claims

1. A mixed flow pump with a suction device comprises a main body, a water inlet positioned at one side of the main body, a water outlet positioned at the other side of the main body, an impeller positioned in the main body, and a motor fixedly connected to the main body and used for rotating the impeller, and is characterized in that a first connecting port is arranged at a position, close to the water inlet, of the main body, a second connecting port is arranged at a position, close to the water outlet, of the main body, the first connecting port is connected with a vacuum pump through a first pipeline, and the second connecting port is connected with a self-suction pump through a second pipeline; the utility model discloses a motor, including main part, frame, motor, output shaft, blade wheel, motor, the main part top is equipped with the frame, be equipped with between frame and the main part and be used for connecting each other the frame, the rigid coupling has the impeller shaft on the impeller, lie in the frame below after the main part is worn out to impeller shaft top, the motor rigid coupling is at the frame upside, the output shaft of motor is down, the tip of output shaft is equipped with the cross section and is the slot of hexagon, the top and the slot adaptation of impeller shaft.

2. A mixed flow pump with an inhalation device as claimed in claim 1, wherein said first pipe is provided with a control mechanism for automatically turning off said vacuum pump and said self-priming pump after water is supplied.

3. A mixed flow pump with a suction device as claimed in claim 2, wherein said control mechanism comprises a front plate, a back plate, a housing between the front plate and the back plate, and an inner ring between the front plate and the back plate, said front plate, the back plate, and the housing are fixedly connected to each other, said inner ring is rotatably connected to the front plate, said inner ring is located in the housing, two ends of the housing are bent toward the inner ring and slidably connected to the outer sidewall of the inner ring, said front plate, the back plate, the housing, and the inner ring enclose a C-shaped cavity, two ends of said cavity are downward, said cavity comprises a sliding cavity and receiving cavities at two ends of the sliding cavity, said receiving cavities are provided with infrared sensors, said infrared sensors are connected to the vacuum pump and the self-priming pump, one of the receiving cavities is provided with a floating ball fitted to the sliding cavity, said floating ball is in clearance fit with the port of the sliding cavity, the floating ball is fixedly connected with the outer side of the inner ring, a rotating shaft which is coaxial with the inner ring is arranged on the front plate in a penetrating way, the rotating shaft is rotationally connected with the front plate, a connecting rod for connecting the inner ring and the rotating shaft is arranged between the inner ring and the rotating shaft, a first limiting block and a second limiting block are arranged in the inner ring, the connecting rod is abutted against the upper side of the first limiting block or the upper side of the second limiting block, the first pipeline is provided with a reversing valve, the reversing valve divides the first pipeline into a water inlet pipeline and a water outlet pipeline, the water inlet pipeline is positioned at one side of the reversing valve close to the main body, one end of the cavity is connected with the reversing valve through a first reversing pipeline, the other end of the cavity is connected with the reversing valve through a second reversing pipeline, the reversing valve is provided with a second rotating shaft for switching, a transmission gear is arranged between the rotating shaft and the second rotating shaft, and the water inlet pipeline is provided with a valve mechanism for closing the water inlet pipeline after the rotating shaft rotates.

4. A mixed flow pump with a suction device as claimed in claim 3, wherein the valve mechanism comprises a sleeve fixedly connected to the water inlet pipe, a valve plate passing through the bottom surface of the sleeve and the upper side of the water inlet pipe, an electromagnet positioned at the top end inside the sleeve and used for adsorbing the valve plate, a push rod passing through the top surface of the sleeve and the electromagnet and used for pushing the valve plate, a cam positioned at the top end of the push rod, a driven gear fixedly connected to the cam, and a spring positioned at the top end of the sleeve and used for pushing the push rod to make the push rod always abut against the cam, a driving gear fixedly connected to the rotating shaft is engaged with the driven gear, and the electromagnet is connected.

5. A mixed flow pump with an inhalation device as claimed in claim 3, wherein a sealing ring is provided between the inner ring and the front plate, and a sealing ring is provided between the inner ring and the rear plate.

6. A mixed flow pump with an inhalation device as claimed in claim 3, wherein said casing, front plate and rear plate are of an integrally formed structure.

7. A mixed flow pump with an inhalation device as claimed in claim 6, wherein said motor is bolted to the base.