CN113864205A - Self-priming impeller pump - Google Patents

Abstract

The invention discloses a self-priming impeller pump which comprises an impeller pump body, wherein a water inlet, a water outlet and a motor body are arranged on the impeller pump body, an impeller assembly and a driving assembly which are mutually connected through a rotating shaft are arranged in the motor body, a diaphragm pump body is hermetically arranged at the end part of the impeller pump body and comprises a mounting seat, a contraction and expansion assembly is sleeved in the mounting seat body in a sliding mode, the contraction and expansion assembly and the inner wall of the mounting seat form a first water outlet cavity, a throttling hole formed by the mounting seat body is formed in a water channel communicated with a water outlet guide pipe, the first water outlet cavity is communicated with a water inlet guide pipe through a one-way water flow structure, the water inlet guide pipe is communicated with a pump water cavity of the impeller pump body, the water outlet guide pipe is communicated with the water outlet, a suspension assembly is connected between the rotating shaft and the contraction and expansion assembly, and the suspension assembly controls the contraction and expansion assembly to stop or act under the hydraulic pressure effect in the first water outlet cavity. The invention can quickly discharge the air in the pump, so that the liquid can be sucked into the pump in time, and the working efficiency of the impeller pump is improved.

Description

Self-priming impeller pump

Technical Field

The invention relates to the technical field of fluid transportation, in particular to a self-priming impeller pump.

Background

The impeller pump is a machine for conveying fluid or pressurizing fluid, and when it is worked, the impeller can be used for driving liquid to make high-speed rotation so as to transfer mechanical energy to the liquid, and utilize the centrifugal movement of the liquid when it is rotated to attain the goal of conveying liquid. The existing impeller pump drives an impeller to rotate through a motor, so that vacuum is generated in a pump water cavity, then liquid enters the pump water cavity from a liquid inlet, and flows out through a liquid outlet under the driving of the impeller. However, when the water inlet of the existing impeller pump is higher than the liquid level, the impeller of the impeller pump rotates, so that the air inside the impeller pump is not easy to discharge, and the liquid outside the impeller pump is not easy to suck, water is often injected into the impeller pump firstly, and the air inside the impeller pump is discharged manually, so that time and labor are wasted, the working efficiency of the impeller pump is low, and the impeller pump is not beneficial to field work.

Disclosure of Invention

The invention aims to provide a self-priming impeller pump which is used for quickly discharging air in the pump, so that liquid can be sucked into the pump in time, and the working efficiency of the impeller pump is improved.

In order to solve the technical problem, the invention adopts the following scheme:

the utility model provides a from inhaling impeller pump, includes the impeller pump body, is equipped with water inlet, delivery port, the motor body on the impeller pump body, is equipped with impeller subassembly and drive assembly through pivot interconnect in the motor body, the tip of the impeller pump body is airtight to be equipped with the diaphragm pump body, and the diaphragm pump body includes the mount pad, and the subassembly is received and expanded to this internal slip of mount pad, receives to expand subassembly and mount pad inner wall and constitutes first water outlet chamber, is equipped with the orifice that comprises the mount pad body on the water route of first water outlet chamber and the switch-on of delivery pipe, and first water outlet chamber is through one-way rivers structure and the switch-on of water inlet pipe, and the delivery pipe is put through with the pump water cavity of the impeller pump body, and delivery pipe and delivery port switch-on are connected with the suspension subassembly between pivot and the receipts expand subassembly, and the suspension subassembly is controlled under the hydraulic pressure in first water outlet chamber and is received and expanded subassembly and is stopped or is moved.

Compared with the prior art, when the water inlet of the existing impeller pump is higher than the liquid level, the effect of exhausting the air in the impeller pump is poor, water is often injected into the impeller pump firstly to exhaust the air in the impeller pump, and thus the rotation of the impeller pump can suck the water outside; in the scheme, a diaphragm pump body is hermetically arranged at the end part of an impeller pump body, a rotating shaft in a motor body rotates at a low speed at the initial working stage of the impeller pump body, the rotating shaft drives a suspension component and the impeller component to rotate simultaneously, a contraction and expansion component is driven by the suspension component to generate a closed contraction and expansion state, internal air is discharged firstly, after the internal air is discharged, a first water outlet cavity generates a vacuum state, external water is sucked from a pump water cavity of the impeller pump body through a water inlet guide pipe and then is extruded to the first water outlet cavity through a one-way water flow structure, the water outflow from the first water outlet cavity is small due to the action of a throttling hole, a large amount of water is accumulated in the first water outlet cavity to generate a pressure-holding state, the water pressure in the first water outlet cavity is increased, the suspension state of the suspension component is changed, the suspension component stops driving the contraction and expansion component, and the contraction and expansion component starts to stop extruding internal source water, because the air in the impeller pump body is discharged, the rotation of the impeller component can directly drive the water in the pump water cavity to the water outlet, the water pressure in the first water outlet cavity can be kept relatively stable due to the throttling effect of the throttling hole, so that the water can not be sucked and pumped out well in the stable water pressure range in the first water outlet cavity by the contraction and expansion component, the service life of the contraction and expansion component is prolonged, the air in the impeller pump body can be discharged completely, the impeller pump can well suck and pump the water even if the impeller pump is positioned above the liquid level, manual water injection and air exhaust in the impeller pump body are not needed, time and labor are saved, and the operation efficiency of the impeller pump body is greatly improved.

Preferably, the suspension assembly comprises a basic magnetic ring, a suspension magnetic ring, a driving sleeve, a return spring and an eccentric seat, the rotating shaft is fixedly connected with the driving sleeve, the basic magnetic ring is embedded in the driving sleeve, the suspension magnetic ring is fixedly sleeved on the outer wall of the eccentric seat and positioned in the driving sleeve, one end of the eccentric seat penetrates through the basic magnetic ring and extends to the outer side of the basic magnetic ring and is connected with the expansion assembly, the other end of the eccentric seat is in sliding sleeve connection with the rotating shaft, one end of the return spring acts on the eccentric seat, the other end of the return spring acts on the inner wall of the bottom of the driving sleeve, and the basic magnetic ring and the suspension magnetic ring are mutually far away from or close to control the expansion assembly to stop or act. In the scheme, the rotating shaft drives the driving sleeve to rotate, the driving sleeve drives the basic magnetic ring to rotate along with the rotating, at the initial working stage of the impeller pump body, the distance between the basic magnetic ring and the suspension magnetic ring is small, at the moment, under the action of a magnetic field, the rotation of the basic magnetic ring can drive the suspension magnetic ring to rotate along with the rotating, the rotation of the suspension magnetic ring enables the eccentric seat to rotate, the eccentric seat drives the expansion components to move together one by one, so that the air in the first water outlet cavity is discharged, the vacuum state is generated in the first water outlet cavity, the external water is sucked from the water pumping cavity of the impeller pump body through the water inlet guide pipe and then is extruded to the first water outlet cavity through the one-way water flow structure, the water outflow from the first water outlet cavity is small due to the effect of the throttling hole, and a large amount of water is accumulated in the first water outlet cavity to generate a pressure-holding state, so that the water pressure in the first water outlet cavity is pressurized, when the water pressure is increased to overcome the elasticity of the suspension spring, the water pressure in the first water outlet cavity drives the contraction and expansion assembly to push towards the water inlet, so that the eccentric seat and the rotating shaft are relatively displaced, the distance between the basic magnetic ring and the suspension magnetic ring is increased, the rotation of the basic magnetic ring cannot drive the suspension magnetic ring to continue rotating until no magnetic field reaction exists between the two magnetic rings, the eccentric seat does not drive the contraction and expansion assembly to move any more, and the water is sucked into a cavity channel in the impeller pump body because the air in the impeller pump body is completely removed, so that the impeller assembly can efficiently pump the water out.

Preferably, the contraction and expansion component comprises a suspension pressure sensing plate, a pressurization diaphragm, a supporting plate, a suspension spring and a fixed sleeve, the suspension pressure sensing plate is connected with the inner wall of the mounting seat in a circumferential direction in a sealing and sliding mode and is connected with the supporting plate in a circumferential mode to form a first water outlet cavity, the supporting plate is connected with the inner wall of the mounting seat in a circumferential mode and is connected with the inner wall of the mounting seat in a sealing and sliding mode, the pressurization diaphragm is tightly pressed between the supporting plate and the fixed sleeve in a circumferential mode, one end of the suspension spring acts on an impeller pump body, the other end of the suspension spring acts on the supporting plate, a pressurization cavity is formed between the pressurization diaphragm and the supporting plate, the pressurization diaphragm is connected with a pushing frame, and the pushing frame is connected with an eccentric seat through an eccentric rod. In the scheme, when the impeller pump body acts, the rotation of the eccentric seat drives the eccentric rod to eccentrically rotate, the rotation of the eccentric rod drives the pushing frame to follow the movement, the pushing frame pushes the pressurizing diaphragm to act one by one, after the air in the impeller pump body is exhausted, a part of water is sucked into the first water outlet cavity, a large amount of water is accumulated in the first water outlet cavity to generate a suppressed state, so that the water pressure in the first water outlet cavity is increased, when the water pressure is increased to overcome the elasticity of the suspension spring, the water pressure in the first water outlet cavity drives the suspension pressure sensing plate to slide in the sleeve towards the water inlet direction, the suspension pressure sensing plate further pushes the supporting plate to slide along the inner cavity wall of the mounting seat towards the water inlet direction and compress the suspension spring, under the action of the eccentric rod, the relative displacement is driven to occur between the eccentric seat and the rotating shaft, so that the distance between the basic magnetic ring and the suspension magnetic ring is increased until no magnetic field reaction exists between the two magnetic rings, the rotation of the basic magnetic ring can not drive the suspension magnetic ring to continue to rotate, the eccentric seat can not drive the expansion assembly to act any more, and the impeller assembly can efficiently pump water out because the air in the impeller pump body is completely removed and the water is sucked into a cavity in the impeller pump body.

Preferably, the first water outlet cavity is communicated with the pressurizing cavity through a water outlet one-way valve clack, the water outlet one-way valve clack is fixed on the end face of the bottom of the suspension pressure sensing plate, the pressurizing cavity is communicated with the water inlet guide pipe through a water inlet one-way valve clack, and the water inlet one-way valve clack is fixed on the end face of the support plate and is located in the circumferential direction of the water outlet one-way valve clack. The water inlet one-way valve clack only allows water to enter the pressurizing cavity from the water inlet pipeline, so that the situation of backflow from the pressurizing cavity is avoided; the water outlet one-way valve clack only allows the pressurizing diaphragm to pump water in the pressurizing cavity to the first water outlet cavity, and the water in the first water outlet cavity is prevented from flowing backwards to influence the water pressure in the first water outlet cavity.

Preferably, suspension pressure sensing board circumference cover is equipped with first sealing washer, and backup pad circumference cover is equipped with the second sealing washer. The first sealing washer can avoid the water in the inlet channel to enter into first water cavity by the clearance of suspension pressure sensing board circumference, and it is internal that the second sealing washer can avoid water to enter into the motor, and then influences inside drive assembly's normal work.

Preferably, still include the pressurize subassembly, the pressurize unit mount is on the delivery conduit, the pressurize subassembly is including the disk seat that has the inner chamber, the control lever, pressurize pressure sensing board, the pressurize spring, disk seat and delivery conduit outer wall connection, be equipped with the second in the disk seat and go out the water cavity, pressurize pressure sensing board is located the disk seat and with the sealed sliding connection of disk seat inner wall, the disk seat top is equipped with the valve gap, constitute the atmosphere chamber between valve gap and the pressurize pressure sensing board and be equipped with the big gas pocket on the valve gap, pressurize spring one end acts on the valve gap, the other end acts on pressurize pressure sensing board, the control lever lower extreme is equipped with the basin, the second goes out the water cavity and puts through with the pump water cavity through going out the water runner, control lever one end is connected with pressurize pressure sensing board, the other end extends to in the delivery conduit and is used for sealed or put through water seal ring department water route. In the scheme, water pumped out from the water pumping cavity enters the second water outlet cavity, the water pressure of the second water outlet cavity acts on the pressure-sensing plate, when the water pressure in the second water outlet cavity is enough to overcome the air pressure in the atmosphere cavity and the elastic force of the pressure-maintaining spring, the control rod moves upwards until the water tank is communicated with the second water outlet cavity, the water in the second water outlet cavity is pumped out from the water outlet, the pressure-maintaining assembly can effectively ensure that the water pressure value in the second water outlet cavity is within an allowable range, the water pressure value of the second water outlet cavity is the same as that of the first water outlet cavity, and as the water path between the first water outlet cavity and the second water outlet cavity is communicated, the water pressure value in the first water outlet cavity can be ensured to be within a stable range, so that the basic magnetic ring and the suspension magnetic ring can be within a controlled distance range, the expansion assembly can not act, and the service life of the pressurizing diaphragm is effectively ensured.

Preferably, the pressure maintaining pressure sensing plate is circumferentially sleeved with a third sealing ring, and the control rod is circumferentially sleeved with a fourth sealing ring. The third sealing ring prevents water in the second water outlet cavity from entering the atmosphere cavity, the fourth sealing ring prevents water pressure in the second water inlet cavity from entering the water outlet guide pipe in advance when the elastic force of the pressure maintaining spring and the pressure in the atmosphere cavity are not overcome, the sealing effect of the water sealing sleeve ring is improved, and therefore the water pressure of the second water outlet cavity can be effectively guaranteed to be the same as the water pressure of the first water outlet cavity, the suspension component can maintain a suspension state, the expansion component cannot move, and the service life of a pressurizing diaphragm in the expansion component is prolonged.

Preferably, the impeller assembly comprises an impeller which is arranged around the circumferential direction of the rotating shaft, and the impeller is arranged spirally.

Preferably, the impeller is circumferentially provided with an impeller sleeve, and an auxiliary nozzle and a main nozzle which are communicated with the second water outlet cavity are distributed on the impeller sleeve. Two nozzles are arranged, so that the water pumping efficiency of the impeller pump can be improved.

The invention has the following beneficial effects:

1. the invention is characterized in that a diaphragm pump body is hermetically arranged at the end part of an impeller pump body, a rotating shaft in a motor body rotates at a low speed at the initial working stage of the impeller pump body, the rotating shaft drives a suspension component and the impeller component to rotate simultaneously, a contraction and expansion component generates a closed contraction and expansion state under the drive of the suspension component, internal air is discharged, after the internal air is discharged, a first water outlet cavity generates a vacuum state, external water is sucked from a pump water cavity of the impeller pump body through a water inlet guide pipe and then is extruded to the first water outlet cavity through a one-way water flow structure, the water outflow quantity in the first water outlet cavity is very small due to the action of a throttling hole, so that a large amount of water is accumulated in the first water outlet cavity to generate a pressure-holding state, the water pressure in the first water outlet cavity is increased, the interval between a basic magnetic ring and the suspension is expanded, and the suspension component stops driving the contraction and expansion component, the contraction and expansion assembly starts to stop extruding the internal source water, the air in the impeller pump body is discharged, the impeller assembly can directly pump the water in the water pumping cavity to the water outlet through rotation of the impeller assembly, the water pressure in the first water outlet cavity can be kept relatively stable due to the throttling effect of the throttling hole, the contraction and expansion assembly can not perform a combined action in the stable water pressure range in the first water outlet cavity, the service life of the contraction and expansion assembly is prolonged, the internal air can be completely discharged, the impeller pump can well suck and pump the water even if the impeller pump is positioned above the liquid level, manual water injection and exhaust are not needed, time and labor are saved, and the operating efficiency of the impeller pump body is greatly improved.

Drawings

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

FIG. 2 is a left side view of the structure of FIG. 1;

FIG. 3 is a schematic view of the structure A-A in FIG. 2;

FIG. 4 is a schematic structural view of a collecting and expanding assembly;

FIG. 5 is a plan view of the structure of FIG. 1;

FIG. 6 is a schematic diagram of B-B in FIG. 5.

Reference numerals: 01-water outlet, 02-valve seat, 03-water outlet pipe, 04-diaphragm pump body, 05-motor body, 06-impeller pump body, 07-water inlet, 08-water inlet pipe, 09-impeller component, 10-driving component, 11-driving sleeve, 12-rotating shaft, 13-reset spring, 14-suspension magnetic ring, 15-basic magnetic ring, 16-eccentric seat, 17-contraction and expansion component, 18-sleeve, 19-first sealing ring, 20-suspension pressure sensing plate, 21-first water outlet cavity, 22-mounting seat, 23-orifice, 24-suspension spring, 25-water sealing sleeve ring, 26-pressure maintaining spring, 27-atmospheric hole, 28-valve cover, 29-atmospheric cavity and 30-pressure maintaining pressure sensing plate, 31-a fourth sealing ring, 32-a third sealing ring, 33-a fixed sleeve, 34-an impeller sleeve, 35-an auxiliary nozzle, 36-an annular flow channel, 37-an impeller, 38-a main nozzle, 39-a water outlet flow channel, 40-a second water outlet cavity, 41-a control rod, 42-a water inlet one-way valve flap, 43-a water outlet one-way valve flap, 44-a pushing frame, 45-a pressurizing cavity, 46-a second sealing ring, 47-an eccentric rod, 48-a fifth sealing ring, 49-a water outlet guide pipe, 50-a water inlet pipeline, 51-a pressurizing diaphragm, 52-a supporting plate and 53-a water passing groove.

Detailed Description

The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited to these examples.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", and the like indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, or that are conventionally placed when the product of the present invention is used, and are used only for convenience in describing and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "open," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

As shown in fig. 1-6, a self-priming impeller 37 pump includes an impeller pump body 06, the impeller pump body 06 is provided with a water inlet 07, a water outlet 01, and a motor body 05, an impeller assembly 09 and a driving assembly 10 are provided in the motor body 05 and are connected to each other through a rotating shaft 12, the driving assembly 10 drives the impeller assembly 09 to rotate through the rotating shaft 12 to pump out water in a pump water cavity, an end portion of the impeller pump body 06 is hermetically provided with a diaphragm pump body 04, the diaphragm pump body 04 includes a mounting seat 22, the mounting seat 22 is a cylindrical structure with an inner cavity, a contraction and expansion assembly 17 is slidably sleeved in a body of the mounting seat 22, the contraction and expansion assembly 17 and the mounting seat 22 can slide relatively, a water inlet pipe 50 and a water outlet pipe 03 are provided in a wall of the mounting seat 22, the water inlet pipe 50 is sealingly sleeved in a water inlet pipe 08, the water outlet pipe 03 is sealingly sleeved in a water outlet pipe 49, the contraction and expansion assembly 17 and an inner wall of the mounting seat 22 form a first water outlet cavity 21, the water path of the first water outlet cavity 21 communicated with the water outlet conduit 49 is provided with a throttle hole 23 formed by the body of the mounting seat 22, the first water outlet cavity 21 is communicated with the water inlet conduit 08 through a one-way water flow structure, the water inlet conduit 08 is communicated with the water pumping cavity of the impeller pump body 06, the water outlet conduit 49 is communicated with the water outlet 01, a suspension component is connected between the rotating shaft 12 and the contraction and expansion component 17, and the suspension component controls the contraction and expansion component 17 to stop or act under the action of water pressure in the first water outlet cavity 21.

In this embodiment, a diaphragm pump body 04 is hermetically installed at an end of the impeller pump body 06, at an initial stage of operation of the impeller pump, the rotating shaft 12 in the motor body 05 rotates at a low speed, the rotating shaft 12 drives the suspension assembly and the impeller assembly 09 to rotate simultaneously, the expansion and contraction assembly 17 generates a closed expansion and contraction state under the driving of the suspension assembly, the internal air is discharged first, after the internal air is discharged, the first water outlet chamber 21 generates a vacuum state, external water is sucked from the pump water chamber of the impeller pump body 06 through the water inlet conduit 08, and is extruded to the first water outlet chamber 21 through the one-way water flow structure, due to the action of the orifice 23, the outflow of water from the first water outlet chamber 21 is small, so that a large amount of water is accumulated in the first water outlet chamber 21 to generate a pressure holding state, the water pressure in the first water outlet chamber 21 is increased, the suspension state of the suspension assembly is changed, and the suspension assembly stops driving the expansion and contraction assembly 17, the contraction and expansion assembly 17 starts to stop extruding the internal source water, because the air in the impeller pump body 06 is discharged, the rotation of the impeller assembly 09 can directly pump the water in the water pumping cavity to the water outlet 01, and the throttling effect of the throttling hole 23 enables the water pressure in the first water outlet cavity 21 to be relatively stable, so that the contraction and expansion assembly 17 does not generate a combined action in the stable water pressure range in the first water outlet cavity 21, the service life of the contraction and expansion assembly 17 is prolonged, the internal air can be discharged completely, the impeller pump can well suck and pump the water even if the impeller pump is positioned above the liquid level, manual water injection and air exhaust to the internal part are not needed, time and labor are saved, and the operation efficiency of the impeller pump body 06 is greatly improved.

Example 2

As shown in fig. 1-6, specifically, the suspension assembly includes a base magnetic ring 15, a suspension magnetic ring 14, a driving sleeve 11, a return spring 13 and an eccentric seat 16, the rotating shaft 12 is fixedly connected to the driving sleeve 11, the base magnetic ring 15 is embedded in the driving sleeve 11, the suspension magnetic ring 14 is fixedly sleeved 33 on the outer wall of the eccentric seat 16 and is located in the driving sleeve 11, one end of the eccentric seat 16 penetrates through the base magnetic ring 15 and extends to the outer side of the base magnetic ring 15 and is connected to the expanding assembly 17, the other end of the eccentric seat 16 is slidably sleeved with the rotating shaft 12, one end of the return spring 13 acts on the eccentric seat 16, the other end acts on the inner wall of the bottom of the driving sleeve 11, and the base magnetic ring 15 and the suspension magnetic ring 14 move away from or approach each other to control the expanding assembly 17 to stop or operate. In the scheme, the rotating shaft 12 drives the driving sleeve 11 to rotate, the driving sleeve 11 drives the basic magnetic ring 15 to rotate along with the rotation, at the initial stage of the work of the impeller pump body 06, the distance between the basic magnetic ring 15 and the suspension magnetic ring 14 is small, at the moment, under the action of a magnetic field, the rotation of the basic magnetic ring 15 can drive the suspension magnetic ring 14 to rotate along with the rotation, as the suspension magnetic ring 14 is fixed on the eccentric seat 16, the rotation of the suspension magnetic ring 14 enables the eccentric seat 16 to rotate, so that the eccentric seat 16 drives the expansion assembly 17 to move together, so that the air in the first water outlet cavity 21 is discharged, a vacuum state is generated in the first water outlet cavity 21, the external water is sucked in from the water pumping cavity of the impeller pump body 06 through the water inlet pipe 08 and then is extruded to the first water outlet cavity 21 through the one-way water flow structure, the water outflow from the first water outlet cavity 21 is small due to the action of the throttling hole 23, so that a large amount of water is accumulated in the first water outlet cavity 21 to generate a pressure-building state, when the water pressure in the first water outlet cavity 21 is boosted until the water pressure is increased to overcome the elastic force of the suspension spring 24, the water pressure in the first water outlet cavity 21 drives the contraction and expansion assembly 17 to push towards the water inlet 07, so that the eccentric seat 16 and the rotating shaft 12 are relatively displaced, the distance between the basic magnetic ring 15 and the suspension magnetic ring 14 is increased, until no magnetic field reaction exists between the two magnetic rings, the rotation of the basic magnetic ring 15 cannot drive the suspension magnetic ring 14 to continue to rotate, the eccentric seat 16 cannot drive the contraction and expansion assembly 17 to act any more, and as the air in the impeller pump body 06 is completely removed and the water is sucked into the cavity channel in the impeller pump body 06, the impeller assembly 09 can efficiently pump the water out.

Specifically, receive and expand subassembly 17 including suspension pressure sensing board 20, pressure boost diaphragm 51, backup pad 52, suspension spring 24 and fixed cover 33, sleeve 18 of integrated into one piece on the mount pad 22 inner wall, suspension pressure sensing board 20 circumference is equipped with the round recess, and the recess endotheca is equipped with first sealing washer 19, and suspension pressure sensing board 20 slides and cup joints in sleeve 18, and backup pad 52 circumference cover is equipped with second sealing washer 46. The first sealing ring 19 can prevent water in the water inlet pipeline 50 from entering the first water outlet cavity 21 from a gap in the circumferential direction of the suspension pressure sensing plate 20, and the second sealing ring 46 can prevent water from entering the motor body 05, so that the normal operation of the internal driving assembly 10 is influenced; one end of the suspension pressure sensing plate 20 is connected with the supporting plate 52 in an integrated forming manner and forms a first water outlet cavity 21 with the inner wall of the mounting seat 22, the supporting plate 52 is connected with the inner wall of the mounting seat 22 in a sliding manner in the circumferential direction, the pressurizing diaphragm 51 is tightly pressed between the supporting plate 52 and the fixing sleeve 33 in a circumferential direction in a sealing manner, one end of the suspension spring 24 acts on the impeller pump body 06, the other end of the suspension spring acts on the supporting plate 52, a pressurizing cavity 45 is formed between the pressurizing diaphragm 51 and the supporting plate 52, the pressurizing diaphragm 51 is connected with the push frame 44, and the push frame 44 is connected with the eccentric seat 16 through the eccentric rod 47.

In this embodiment, when the impeller pump body 06 acts, the rotation of the eccentric seat 16 drives the eccentric rod 47 to eccentrically rotate, the rotation of the eccentric rod 47 drives the pushing frame 44 to follow the movement, the pushing frame 44 pushes the pressurizing diaphragm 51 to move one by one, after the air in the impeller pump body 06 is exhausted, and a part of the water is sucked into the first water outlet cavity 21, so that a large amount of water is accumulated in the first water outlet cavity 21 to generate a pressure-building state, the water pressure in the first water outlet cavity 21 is increased until the water pressure is increased to overcome the elastic force of the suspension spring 24, the water pressure in the first water outlet cavity 21 drives the suspension pressure-sensing plate 20 to slide in the sleeve 18 towards the water inlet 07, the suspension pressure-sensing plate 20 further pushes the supporting plate 52 to slide along the inner cavity wall of the mounting seat 22 towards the water inlet 07 direction and compresses the suspension spring 24, and the eccentric rod 47 drives the eccentric seat 16 and the rotating seat to relatively displace, when the distance between the basic magnetic ring 15 and the suspension magnetic ring 14 is increased to a certain range, when no magnetic field reaction exists between the two magnetic rings, the rotation of the basic magnetic ring 15 can not drive the suspension magnetic ring 14 to continue to rotate, the eccentric seat 16 can not drive the contraction and expansion assembly 17 to act any more, and as the air in the impeller pump body 06 is completely removed and water is sucked into the cavity in the impeller pump body 06, the impeller assembly 09 can efficiently pump the water out.

Example 3

As shown in fig. 1-6, specifically, the first water outlet cavity 21 is connected to the pressure increasing cavity 45 through a water outlet one-way valve flap 43, the water outlet one-way valve flap 43 is fixed on the bottom end surface of the suspension pressure sensing plate 20, a water outlet hole for communicating the pressure increasing cavity 45 with the first water outlet cavity 21 is formed in the suspension pressure sensing plate 20, and the periphery of the water outlet one-way valve flap 43 covers the water outlet hole; the pressurizing cavity 45 is communicated with the water inlet conduit 08 through the water inlet one-way valve flap 42, the water inlet one-way valve flap 42 is fixed on the end surface of the support plate 52 and is positioned at the periphery of the water outlet one-way valve flap 43, the suspension pressure sensing plate 20 is provided with a water inlet hole for communicating the pressurizing cavity 45 with the water inlet pipeline 50, and the periphery of the water inlet one-way valve flap 42 covers the water inlet hole. The water inlet one-way valve clack 42 only allows water to enter the pressurizing cavity 45 from the water inlet pipeline 50, so that the situation of backflow from the pressurizing cavity 45 is avoided; the water outlet one-way valve clack 43 only allows the pressurizing diaphragm 51 to pump water in the pressurizing cavity 45 to the first water outlet cavity 21, so that the water in the first water outlet cavity 21 is prevented from flowing backwards to influence the water pressure in the first water outlet cavity 21.

Example 4

As shown in fig. 1 to 6, in particular, further comprises a pressure maintaining assembly, which is installed on the water outlet conduit 49, the pressurize subassembly is including the tube-shape disk seat 02 that has the inner chamber, the control lever 41, pressurize pressure sensing board 30, pressurize spring 26, disk seat 02 and play water pipe 49 outer wall connection, be equipped with second play water cavity 40 in the disk seat 02, pressurize pressure sensing board 30 is located disk seat 02 and with disk seat 02 inner wall sealing sliding connection, the disk seat 02 top is equipped with valve gap 28, constitute atmospheric chamber 29 and be equipped with big gas vent 27 on valve gap 28 between valve gap 28 and the pressurize pressure sensing board 30, pressurize spring 26 one end is acted on valve gap 28, the other end acts on pressurize pressure sensing board 30, the lower extreme of control lever 41 is equipped with water tank 53, second goes out water cavity 40 and puts through with the pump water cavity through going out water runner 39, control lever 41 one end is connected with pressurize pressure sensing board 30, the other end extends to in going out water pipe 49 and is used for sealed or put through water seal ring 25 department. The water pumped out by the water pumping cavity enters the second water outlet cavity 40, the water pressure of the second water outlet cavity 40 acts on the pressure-maintaining pressure-sensing plate 30, when the water pressure in the second water outlet cavity 40 is enough to overcome the air pressure in the atmosphere cavity 29 and the elastic force of the pressure-maintaining spring 26, the control rod 41 moves upwards until the water passing groove 53 is communicated with the second water outlet cavity 40, water in the second water outlet cavity 40 is pumped out from the water outlet 01, the pressure maintaining assembly can effectively ensure that the water pressure value in the second water outlet cavity 40 is within an allowable range, the water pressure value of the second water outlet cavity 40 is the same as the water pressure value of the first water outlet cavity 21, as the water path between the basic magnetic ring 15 and the suspension magnetic ring 14 is conducted, the water pressure value in the first water outlet cavity 21 can be ensured to be in a stable range, so that the basic magnetic ring 15 and the suspension magnetic ring 14 can be in a controlled distance range, thus, the contraction and expansion assembly 17 does not act, and the service life of the pressurizing diaphragm 51 is effectively ensured.

Specifically, the pressure maintaining pressure sensing plate 30 is circumferentially sleeved with a third sealing ring 32, and the control rod 41 is circumferentially sleeved with a fourth sealing ring 31. The third sealing ring 32 prevents water in the second water outlet cavity 40 from entering the atmosphere cavity 29, and the fourth sealing ring 31 prevents water pressure in the second water inlet cavity from entering the water outlet guide pipe 49 in advance when the elastic force of the pressure maintaining spring 26 and the pressure in the atmosphere cavity 29 are not overcome, so that the sealing effect of the water sealing sleeve ring 25 is improved, and thus the water pressure in the second water outlet cavity 40 can be effectively ensured to be the same as the water pressure in the first water outlet cavity 21, so that the suspension component can maintain the suspension state, the contraction and expansion component 17 cannot act, and the service life of the pressurization diaphragm 51 in the contraction and expansion component 17 can be prolonged.

Example 5

As shown in fig. 6, in particular, the impeller assembly 09 includes an impeller 37 disposed around the rotating shaft 12, and the impeller 37 is disposed in a spiral shape; the impeller 37 is circumferentially provided with an impeller sleeve 34, the impeller sleeve 34 is distributed with an auxiliary nozzle 35 and a main nozzle 38 which are communicated with a second water outlet cavity 40 at the same time, the two nozzles are communicated with the second water outlet cavity 40 through an annular flow passage 36 and a water outlet flow passage 39, and the two nozzles are arranged, so that the water pumping efficiency of the impeller 37 pump can be improved.

The working principle of the invention is as follows: at the initial stage of the operation of the impeller pump body 06, the rotation speed is low, the rotation of the rotating shaft 12 drives the driving sleeve 11 to rotate along with the rotation, the driving sleeve 11 drives the basic magnetic ring 15 to rotate, the distance between the basic magnetic ring 15 and the suspension magnetic ring 14 is small, at this time, under the action of the magnetic field, the rotation of the basic magnetic ring 15 can drive the suspension magnetic ring 14 to rotate along with the rotation, because the suspension magnetic ring 14 is fixed on the eccentric seat 16, the rotation of the suspension magnetic ring 14 rotates the eccentric seat 16, the rotation of the eccentric seat 16 drives the eccentric rod 47 to rotate eccentrically, the rotation of the eccentric rod 47 drives the pushing frame 44 to move along with the rotation, the pushing frame 44 drives the pressurizing diaphragm 51 to extrude and widen the pressurizing cavity 45, so that the pressurizing diaphragm 51 moves together to completely discharge the air inside the impeller pump body 06, so that a vacuum state is generated in the first water outlet cavity 21, and when the pressurizing cavity 45 is widened, the outside water is discharged from the water inlet pipe 08, the water outlet pipe, and the pressurizing cavity is connected to the pressurizing cavity, the pressurizing cavity is connected with the pressurizing cavity, and the pressurizing cavity is connected with the pressurizing cavity, and the pressurizing cavity, and the pressurizing cavity, and the pressurizing cavity, and the pressurizing cavity, and the pressurizing cavity, and the pressurizing cavity, and the pressurizing cavity, and the pressurizing cavity, the pressurizing cavity, The water inlet pipe 50 and the water inlet one-way valve flap 42 are sucked into the pressurizing cavity 45, when the pressurizing cavity 45 is squeezed, the water in the pressurizing cavity 45 is squeezed to the first water outlet cavity 21 through the one-way water outlet valve flap, the outflow of the water from the first water outlet cavity 21 is very small due to the action of the orifice 23, so that a large amount of water is accumulated in the first water outlet cavity 21 to generate a pressure-holding state, the water pressure in the first water outlet cavity 21 is pressurized, until the water pressure is increased to overcome the elastic force of the suspension spring 24, the water pressure in the first water outlet cavity 21 acts on the suspension pressure sensing plate 20, the water pressure in the first water outlet cavity 21 drives the suspension pressure sensing plate 20 to slide in the sleeve 18 towards the water inlet 07 direction, the suspension pressure sensing plate 20 further pushes the support plate 52 to slide along the wall of the mounting seat 22 towards the water inlet 07 direction and compresses the suspension spring 24, and under the action of the eccentric rod 47, the eccentric rod drives the seat 16 and the rotating shaft 12 to generate transverse relative displacement, the distance between the basic magnetic ring 15 and the suspension magnetic ring 14 is increased continuously until the distance is increased to a certain range, so that no magnetic field reaction exists between the two magnetic rings, the rotation of the basic magnetic ring 15 can not drive the suspension magnetic ring 14 to rotate continuously, the eccentric seat 16 can not rotate the eccentric rod 47 any more, the extrusion and widening actions of the pressurizing diaphragm 51 are stopped, and at the moment, because the air in the impeller pump body 06 is completely removed and water is sucked into a cavity channel in the impeller pump body 06, the impeller assembly 09 can pump the water out efficiently; meanwhile, the water pressure value of the second water outlet cavity 40 is the same as that of the first water outlet cavity 21, and the water path between the first water outlet cavity and the second water outlet cavity is communicated, so that the water pressure value in the first water outlet cavity 21 can be ensured to be within a stable range, the basic magnetic ring 15 and the suspension magnetic ring 14 can be within a controlled distance range, the pressurizing diaphragm 51 cannot move, and the service life of the pressurizing diaphragm 51 is effectively ensured.

The foregoing is only a preferred embodiment of the present invention, and the present invention is not limited thereto in any way, and any simple modification, equivalent replacement and improvement made to the above embodiment within the spirit and principle of the present invention still fall within the protection scope of the present invention.

Claims (9)

1. A self-priming impeller pump comprises an impeller pump body (06), wherein a water inlet (07), a water outlet (01) and a motor body (05) are arranged on the impeller pump body (06), and an impeller assembly (09) and a driving assembly (10) which are mutually connected through a rotating shaft (12) are arranged in the motor body (05); the impeller pump body is characterized in that a diaphragm pump body (04) is arranged at the end of the impeller pump body (06) in a sealed mode, the diaphragm pump body (04) comprises a mounting seat (22), a contraction and expansion assembly (17) is sleeved in the mounting seat (22) body in a sliding mode, the contraction and expansion assembly (17) and the inner wall of the mounting seat (22) form a first water outlet cavity (21), a throttling hole (23) formed by the mounting seat (22) body is formed in a water path where the first water outlet cavity (21) is communicated with a water outlet guide pipe (49), the first water outlet cavity (21) is communicated with a water inlet guide pipe (08) through a one-way water flow structure, the water inlet guide pipe (08) is communicated with a pump water cavity of the impeller pump body (06), the water outlet guide pipe (49) is communicated with a water outlet (01), a suspension assembly is connected between a rotating shaft (12) and the contraction and expansion assembly (17), and the suspension assembly controls the contraction and expansion assembly (17) to stop or act under the action of water pressure in the first water outlet cavity (21).

2. The self-priming impeller pump as claimed in claim 1, wherein the suspension assembly comprises a base magnetic ring (15), a suspension magnetic ring (14), a driving sleeve (11), a return spring (13) and an eccentric seat (16), the rotating shaft (12) is fixedly connected with the driving sleeve (11), the base magnetic ring (15) is embedded in the driving sleeve (11), the suspension magnetic ring (14) is fixedly sleeved on the outer wall of the eccentric seat (16) and is located in the driving sleeve (11), one end of the eccentric seat (16) penetrates through the base magnetic ring (15) and extends to the outer side of the base magnetic ring (15), and the other end of the eccentric seat (16) is in sliding sleeve connection with the rotating shaft (12), one end of a return spring (13) acts on the eccentric seat (16), the other end of the return spring acts on the inner wall of the bottom of the driving sleeve (11), and the basic magnetic ring (15) and the suspension magnetic ring (14) are mutually far away from or close to control the contraction and expansion assembly (17) to stop or act.

3. The self-priming impeller pump of claim 2, wherein the contracting and expanding assembly (17) comprises a suspension pressure sensing plate (20), a pressurizing diaphragm (51), a supporting plate (52), a suspension spring (24) and a fixing sleeve (33), the suspension pressure sensing plate (20) is connected with the inner wall of the sleeve (18) formed by the body of the mounting seat (22) in a sealing and sliding manner in the circumferential direction, one end of the suspension pressure sensing plate (20) is connected with the supporting plate (52) and forms a first water outlet cavity (21) with the inner wall of the mounting seat (22), the supporting plate (52) is connected with the inner wall of the mounting seat (22) in a sealing and sliding manner in the circumferential direction, the pressurizing diaphragm (51) is tightly pressed between the supporting plate (52) and the fixing sleeve (33) in a sealing manner in the circumferential direction, one end of the suspension spring (24) acts on the impeller pump body (06), the other end acts on the supporting plate (52), and a pressurizing cavity (45) is formed between the pressurizing diaphragm (51) and the supporting plate (52), the pressurizing diaphragm (51) is connected with a pushing frame (44), and the pushing frame (44) is connected with the eccentric seat (16) through an eccentric rod (47).

4. A self-priming impeller pump according to claim 3, characterized in that the first outlet chamber (21) is connected to the pressurizing chamber (45) by a one-way valve flap (43), the one-way valve flap (43) is fixed to the bottom end of the suspension pressure sensing plate (20), the pressurizing chamber (45) is connected to the inlet conduit (08) by a one-way valve flap (42), and the one-way valve flap (42) is fixed to the end of the support plate (52) and located in the circumferential direction of the one-way valve flap (43).

5. A self-priming impeller pump according to claim 3, characterized in that the floating pressure-sensing plate (20) is circumferentially sheathed with a first sealing ring (19) and the supporting plate (52) is circumferentially sheathed with a second sealing ring (46).

6. The self-priming impeller pump of claim 1, further comprising a pressure maintaining assembly installed on the water outlet pipe (49), the pressure maintaining assembly comprising a valve seat (02) having an inner cavity, a control rod (41), a pressure maintaining pressure sensing plate (30) and a pressure maintaining spring (26), the valve seat (02) is connected with the outer wall of the water outlet pipe (49), a second water outlet cavity (40) is arranged in the valve seat (02), the pressure maintaining pressure sensing plate (30) is located in the valve seat (02) and is in sliding connection with the inner wall of the valve seat (02) in a sealing manner, a valve cover (28) is arranged at the top end of the valve seat (02), an atmospheric cavity (29) is formed between the valve cover (28) and the pressure maintaining pressure sensing plate (30), an atmospheric hole (27) is arranged on the valve cover (28), one end of the pressure maintaining spring (26) acts on the valve cover (28), the other end of the pressure maintaining pressure sensing plate (30), a water passing groove (53) is arranged at the lower end of the control rod (41), the second water outlet cavity (40) is communicated with the water pumping cavity through a water outlet flow passage (39), one end of a control rod (41) is connected with the pressure maintaining pressure sensing plate (30), and the other end of the control rod extends into a water outlet guide pipe (49) and is used for sealing or communicating a water path at the water sealing sleeve ring (25).

7. A self-priming impeller pump according to claim 6, characterized in that the pressure-maintaining pressure-sensing plate (30) is circumferentially sheathed with a third sealing ring (32), and the control rod (41) is circumferentially sheathed with a fourth sealing ring (31).

8. A self-priming impeller pump according to claim 1, characterized in that the impeller assembly (09) comprises an impeller (37) disposed circumferentially around the shaft (12), the impeller (37) being disposed in a spiral.

9. The self-priming impeller pump of claim 8, wherein the impeller (37) is circumferentially provided with an impeller sleeve (34), and the impeller sleeve (34) is distributed with an auxiliary nozzle (35) and a main nozzle (38) which are communicated with the second water outlet cavity (40) simultaneously.

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