Amphibious pump
Technical field
This utility model belongs to pump technology field, relates to a kind of amphibious pump.
Background technology
Ejector pump is the pump that a kind of jet-action utilizing high-voltage high-speed working fluid carrys out conveyance fluid, pump housing internal reflux
Liquid, forms high velocity stream by the nozzle of runner body, forms low-pressure area, make liquid or the gas-liquid mixed of water inlet around high velocity stream
Thing can be inhaled into continuously.The low-speed flow of high velocity stream and water inlet mixes in throat section, improves and enters impeller
Water velocity so that ejector pump has higher lift.The self-suction function of ejector pump and high-lift feature are that it is blue or green by market
The main cause looked at.
Ejector pump majority on market can only use on land, but also before there is problems in that use every time all
In the pump housing, to inject enough water, do not have immersible pump to put into the convenience that can use in water;Powerful ejector pump temperature rise
High, it is difficult to reach relevant criterion requirement.At present, immersible pump is based on single impeller centrifugal pump, and lift is low, it is difficult to meet user's need
Ask.Lift to be improved, needs to use multi-stage impeller, is the increase of parts cost thereupon, and the assembling of product is more complicated,
The problem that card impeller the most often occurs.
Summary of the invention
The purpose of this utility model is to there are the problems referred to above for existing technology, it is proposed that a kind of high-lift, can self-priming,
The amphibious pump of low-temperature-rise.
The purpose of this utility model can be realized by following technical proposal:
This amphibious pump, including the pump housing with water inlet and the pump barrel with outlet being fastened on the pump housing, institute
Being provided with the support separated by both inner chambers between the pump housing and the pump barrel stated, described support is provided with the motor being positioned at pump barrel,
It is characterized in that, described support is positioned at the side fastening of the pump housing outflow cover for water, forms leaf between described outflow cover for water and support
Wheel chamber, is provided with impeller, is provided with the injection structure for connecting water inlet and impeller cavity in the described pump housing in described impeller cavity,
The periphery of described outflow cover for water has and the outlet of pump barrel inner space, described outflow cover for water be additionally provided with on support for connecting pump
Intracoelomic cavity and the through hole of pump barrel inner chamber.
In above-mentioned amphibious pump, water inlet lid that described injection structure includes having return port and with water inlet cover buckle
Close the runner body arranged, described runner body have the trunnion being coaxially disposed with above-mentioned outflow cover for water, one end of described trunnion with
Impeller cavity connects, and its other end connects with runner intracoelomic cavity, and described water inlet connects with runner intracoelomic cavity, described return port
Connect pump housing inner chamber and runner intracoelomic cavity, and return port is coaxially disposed with trunnion.
The entrance point of runner body matches with water inlet, and the outlet of trunnion matches with impeller port ring, enters from water inlet
The liquid entered with return port, in trunnion is sent to impeller port ring, is thrown away by the periphery of impeller, and the outlet on outflow cover for water is sent
Enter in pump barrel.
In above-mentioned amphibious pump, the bottom of the described pump housing is provided with spike.
In above-mentioned amphibious pump, the top of described motor has the top cover fastened with motor seal, described top
Being provided with controller in lid, the outside of described pump barrel is provided with the switch being connected with controller.
In above-mentioned amphibious pump, the top of described pump barrel is provided with handle.
When dual-purpose pump uses on land, switch can be fixed in the bayonet socket of handle so that dual-purpose pump is permissible
It is maintained at normally open.
In above-mentioned amphibious pump, the sidepiece of the described pump housing is provided with bracing frame one, and the sidepiece of described pump barrel is provided with and props up
Support two, described bracing frame two is arranged with bracing frame one homonymy, and bracing frame two along the radical length of pump barrel more than bracing frame
One along the radical length of the pump housing.When dual-purpose pump horizontal positioned, bracing frame one and bracing frame two are positioned at the bottom of dual-purpose pump, support
Frame one is different from the height of bracing frame two makes dual-purpose pump be obliquely installed, and the one end with pump barrel is positioned at oblique upper, has pump
One end of body is positioned at obliquely downward.
In above-mentioned amphibious pump, the described through hole for connecting pump housing inner chamber and pump barrel inner chamber is positioned at the pump housing to be had
The side of bracing frame one, above-mentioned water inlet is positioned at the side bottom the pump housing away from bracing frame one, and above-mentioned outlet is positioned at pump
Cylinder top is away from the side of bracing frame two.
In above-mentioned amphibious pump, described water inlet is provided with filter.
When this amphibious pump uses on land, by water pump water placing flat, bracing frame one and bracing frame two paste ground,
Now slightly inclination angle before the axial line of water pump and ground so that the gas in water pump can be discharged the most more fully.First
Before secondary startup water pump, first injecting enough water in the pump housing, then start water pump, water pump enters self suction row gaseity.Self suction row
The work process of gas is: the liquid in the pump housing, admixture of gas are thrown away to surrounding by impeller high speed rotating by the center of impeller, and
And being guided pump barrel by outflow cover for water so that gas-liquid mixture has enough time to separate in longer pump barrel part, then gas
Discharge from outlet, and liquid is back in the pump housing by the through hole on support and outflow cover for water.The centrifugal action of impeller is at impeller
Central area forms negative pressuren zone so that the liquid being back in the pump housing is sucked at a high speed from return port, and it is negative that this high velocity stream is formed
Nip, sucks the gas in inlet pipeline again, and the trunnion position high velocity stream at runner body mixes with gas, forms gas-liquid mixed
Body flows into impeller, just can be completely exhausted out by the gas in inlet pipeline by so circulation, enters the rank that normally work of water pump
Section.
In the normal work stage of water pump, its work process is similar with exhaust process: impeller high speed rotating is by the pump housing
Liquid is thrown away to surrounding by the center of impeller, and is guided pump barrel by outflow cover for water, and the centrifugal action of impeller is in impeller central region
Forming negative pressuren zone so that the liquid being back in the pump housing is sucked at a high speed from the return port of runner body, it is negative that this high velocity stream is formed
Nip, brings again the trunnion of runner body into by the liquid in inlet pipeline, in the trunnion position high velocity stream of runner body and from water inlet
The low-speed flow mixing of pipeline, flows into impeller with fast speed so that water pump has higher lift.
When water pump uses as immersible pump, for avoiding the blocking of water inlet screw thread and avoiding the large granular impurity in liquid to enter
Enter inside pump, first the filter of threaded set is loaded onto, then connect inlet pipeline, pump be put in water, start water pump just
Can.
Compared with prior art, this amphibious pump has the advantage that
Its simple in construction, only with an impeller, Product Assembly difficulty is low, and production cost is low, can reduce again water pump and card occurs
The probability of the faults such as impeller;It addition, during pump working, liquid is internal at machine barrel and flows along motor housing, can effectively take away
The heat that motor produces, the temperature rise making water pump is low, is conducive to extending the service life of water pump.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of preferred embodiment that this utility model provides.
In figure, 1, water inlet;2, the pump housing;3, outlet;4, pump barrel;5, support;6, motor;7, outflow cover for water;8, impeller;9、
Through hole;10, return port;11, water inlet lid;12, runner body;13, trunnion;14, spike;15, top cover;16, switch;17, carry
Hands;18, bracing frame one;19, bracing frame two;20, filter.
Detailed description of the invention
The following is specific embodiment of the utility model and combine accompanying drawing, the technical solution of the utility model is made further
Description, but this utility model is not limited to these embodiments.
Amphibious pump as shown in Figure 1, including have the pump housing 2 of water inlet 1 and be fastened on the pump housing 2 there is water outlet
The pump barrel 4 of mouth 3, is provided with the support 5 separated by both inner chambers between the pump housing 2 and pump barrel 4, support 5 is provided with and is positioned at pump barrel 4
Motor 6, support 5 is positioned at the side fastening of the pump housing 2 outflow cover for water 7, forms impeller cavity, in impeller cavity between outflow cover for water 7 and support 5
Being provided with impeller 8, be provided with the injection structure for connecting water inlet 1 and impeller cavity in the pump housing 2, the periphery of outflow cover for water 7 has and pump
The outlet of cylinder 4 inner space, outflow cover for water 7 and the through hole 9 being additionally provided with on support 5 for connecting the pump housing 2 inner chamber and pump barrel 4 inner chamber.
As it is shown in figure 1, injection structure includes the water inlet lid 11 with return port 10 and the stream arranged with water inlet lid 11 fastening
Road body 12, runner body 12 has the trunnion 13 being coaxially disposed with above-mentioned outflow cover for water 7, and one end of trunnion 13 connects with impeller cavity,
Its other end and runner body 12 inner space, water inlet 1 and runner body 12 inner space, return port 10 connect the pump housing 2 inner chamber and
Runner body 12 inner chamber, and return port 10 is coaxially disposed with trunnion 13.
The entrance point of runner body 12 matches with water inlet 1, and the outlet of trunnion 13 matches, from water inlet with impeller 8 choma
The liquid that mouth 1 enters and return port 10 enters, in trunnion 13 is sent to impeller 8 choma, is thrown away by the periphery of impeller 8, through going out
Outlet on water cover 7 is sent in pump barrel 4.
As it is shown in figure 1, the bottom of the pump housing 2 is provided with spike 14.
The top of motor 6 has the top cover 15 fastened with motor 6 sealing, is provided with controller in top cover 15, described pump barrel 4
Outside is provided with the switch 16 being connected with controller;The top of pump barrel 4 is provided with handle 17.When dual-purpose pump uses on land
Time, switch 16 can be fixed in the bayonet socket of handle 17 so that dual-purpose pump may remain in normally open.
As it is shown in figure 1, the sidepiece of the pump housing 2 is provided with bracing frame 1, the sidepiece of pump barrel 4 is provided with bracing frame 2 19, bracing frame
2 19 with bracing frame 1 homonymy arrange, and bracing frame 2 19 along pump barrel 4 radical length more than bracing frame 1 along the pump housing 2
Radical length.When dual-purpose pump horizontal positioned, bracing frame 1 and bracing frame 2 19 are positioned at the bottom of dual-purpose pump, bracing frame 1
Different from the height of bracing frame 2 19 dual-purpose pump being obliquely installed, the one end with pump barrel 4 is positioned at oblique upper, has the pump housing
One end of 2 is positioned at obliquely downward.
As it is shown in figure 1, be positioned at the pump housing 2 for connecting the through hole 9 of the pump housing 2 inner chamber and pump barrel 4 inner chamber there is bracing frame 1
Side, water inlet 1 is positioned at the side bottom the pump housing 2 away from bracing frame 1, and outlet 3 is positioned at pump barrel 4 top away from support
The side of frame 2 19.
As it is shown in figure 1, be provided with filter 20 at water inlet 1.
When this amphibious pump uses on land, by water pump water placing flat, by bracing frame 1 and bracing frame 2 19
Patch ground, now slightly inclination angle before the axial line of water pump and ground so that the gas in water pump can be discharged the most more fully.
Before starting water pump for the first time, first injecting enough water in the pump housing 2, then start water pump, water pump enters self suction row gaseity.From
The work process of suction and discharge is: impeller 8 high speed rotating by the liquid in the pump housing 2, admixture of gas by the center of impeller 8 to surrounding
Throw away, and guided pump barrel 4 by outflow cover for water 7 so that gas-liquid mixture has enough time to separate in longer pump barrel 4 part
Coming, then gas is discharged from outlet 3, and liquid is back in the pump housing 2 by the through hole 9 on support 5 and outflow cover for water 7.Impeller 8
Centrifugal action impeller 8 central area formed negative pressuren zone so that the liquid being back in the pump housing 2 is inhaled at a high speed from return port 10
Enter, the negative pressuren zone that this high velocity stream is formed, again the gas in inlet pipeline is sucked, in the trunnion 13 position high velocity stream of runner body 12
Mix with gas, form gas liquid mixture and flow into impeller 8, just the gas in inlet pipeline can be arranged completely by so circulation
Go out, enter the normal work stage of water pump.
In the normal work stage of water pump, its work process is similar with exhaust process: impeller 8 high speed rotating is by the pump housing 2
Liquid thrown away to surrounding by the center of impeller 8, and guided pump barrel 4 by outflow cover for water 7, the centrifugal action of impeller 8 is in impeller 8
Heart region forms negative pressuren zone so that the liquid being back in the pump housing 2 is sucked at a high speed from the return port 10 of runner body 12, and this is at a high speed
The negative pressuren zone that stream is formed, brings again the trunnion 13 of runner body 12 into, at the trunnion 13 of runner body 12 by the liquid in inlet pipeline
Position high velocity stream mixes with the low-speed flow from inlet pipeline, flows into impeller 8 with fast speed so that water pump has higher raising
Journey.
When water pump uses as immersible pump, for avoiding the blocking of water inlet 1 screw thread and avoiding the large granular impurity in liquid
Inside entrance pump, first the filter 20 of threaded set is loaded onto, then connect inlet pipeline, pump is put in water, start water
Pump just may be used.
Specific embodiment described herein is only to this utility model spirit explanation for example.This utility model institute
Belong to those skilled in the art described specific embodiment to make various amendment or supplement or use similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.