CN1884838A - Water drainage pump - Google Patents
Water drainage pump Download PDFInfo
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- CN1884838A CN1884838A CN 200510013883 CN200510013883A CN1884838A CN 1884838 A CN1884838 A CN 1884838A CN 200510013883 CN200510013883 CN 200510013883 CN 200510013883 A CN200510013883 A CN 200510013883A CN 1884838 A CN1884838 A CN 1884838A
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Abstract
The invention relates to a discharging pump used in washing machine, wherein the invention improves the driving force transmission structure between blade wheel and rotation axle to drive the blade wheel successfully, and reduce the impact possibility, to reduce noise and avoid hurting fittings. And the invention is formed by: blade wheel whose one part of inner circumference has protruded blade wheel head; frame with blade wheel containing part and rotor containing part; rotation axle formed along the axial center of rotor; and driving force transmitter. Said driving force transmitter is combined with rotation axle; when the rotation axle rotates to reach some starting force, via the circle center force, the rotation axle will be suspended with the blade wheel head to rotate the blade wheel.
Description
Technical field
The present invention relates to draining pump for washing machine, relate in more detail: the restraining force during with primary starting reaches and minimizes, thus the draining pump of the washing machine that can work swimmingly.
Background technique
Generally speaking, washing machine is the machine that washs various washing automatically.And washing machine comprises the draining pump of the drainage works of the laundry water that uses in the time of can finishing washing automatically.
Fig. 1 is the oblique drawing that shows the surface structure of general draining pump in the past.Fig. 2 is the I-I line sectional drawing of displayed map 1.Fig. 3 is that the impeller head of displayed map 2 and the part of rotating shaft head are cut exploded perspective view.Fig. 4 is the II-II line sectional drawing that shows Fig. 2 of the operational relation between impeller head and the rotating shaft head.
That is, draining pump in the past comprises that substantially following components constitutes: shell 10; Stator 20; Rotor 30; Running shaft 40; Impeller 50; Rotating shaft head 60.
As shown in Figure 2, in the inside of above-mentioned shell 10, be formed with impeller accommodation section 11 and rotor accommodation section 12 separately along its axial direction.
In addition, the top of above-mentioned shell 10 is formed with and can makes laundry water flow into suction port 13 in the above-mentioned impeller accommodation section 11.One side of above-mentioned impeller accommodation section 11 then is formed with the exhaust port 14 of the laundry water that is used to discharge above-mentioned inflow.
In addition, said stator 20 comprises that following components constitutes: the overlapping iron core (core) 21 that centers on the periphery of above-mentioned rotor accommodation section 12; Be wound in above-mentioned unshakable in one's determination 21 coil 22.
In addition, above-mentioned rotor 30 is contained in the rotor accommodation section 12 of above-mentioned shell 10.
In addition, above-mentioned running shaft 40 is integrally formed along the axle center of above-mentioned rotor 30, and above-mentioned running shaft is rotatable.
In addition, above-mentioned impeller 50 comprises that following components constitutes: inside is an accommodation section 51 of hollow state; Along the integrally formed a plurality of blades 52 of the outer periphery of above-mentioned accommodation section 51.
At this moment, the internal face of above-mentioned accommodation section 51 protrudes and is formed with impeller head 51a.
In addition, above-mentioned rotating shaft head 60 combines with 40 on above-mentioned running shaft, and a side of above-mentioned rotating shaft head protrusion is formed with hook protuberance 61.Here, the effect of above-mentioned hook protuberance is: be used to tangle impeller head 51a.Here, as shown in Figure 3 and Figure 4, above-mentioned impeller head 51a protrudes from the accommodation section 51.
At this moment, above-mentioned hook protuberance 61 only is formed at the part of above-mentioned rotating shaft head 60, and above-mentioned impeller head 51a also only is formed at the part in above-mentioned the accommodation section 51.
This be because: if after considering that draining pump stops, being magnetic the masterpiece time spent between iron core 21 that is made of magnetic and the rotor 30 that is made of permanent magnet, the tripping force that needs when restarting wants big with respect to the restraining force of above-mentioned magnetive attraction.
That is, in order to ensure the sufficient tripping force of rotating shaft head 60, should be at interval fully interval between the hook protuberance 61 of above-mentioned rotating shaft head 60 and the above-mentioned impeller head 51a, mutually from every configuration.
At this moment, if the hook protuberance of rotating shaft head 60 61 is not owing to there is sufficient tripping force, and with situation that impeller head 51a contact under, the sense of rotation of rotor 30 will be changed, thereby rotate round about, can guarantee tripping force with this.
But, in above-mentioned draining pump structure according to conventional art, even the sense of rotation of above-mentioned rotor 30 conversion, the tripping force of rotating shaft head 60 that is used for a drives impeller 51a is also still insufficient, and therefore the phenomenon that the conversion of the sense of rotation of rotor 30 continues has taken place.
Therefore, the collision that continues has taken place between the hook protuberance 61 of above-mentioned rotating shaft head 60 and the above-mentioned impeller head 51a, the impact noise that above-mentioned collision causes has also caused being discontented with of Consumer.
Moreover, because the impact that above-mentioned collision causes, above-mentioned rotating shaft head 60 or above-mentioned impeller 50 have also produced impaired problems such as crack.
Summary of the invention
The present invention proposes in order to solve the above problems.Therefore, the purpose of this invention is to provide: by improving the driving force transferring structure between impeller and the running shaft, make the driving of above-mentioned impeller smooth and easy, and will produce the minimizing possibility that impacts, thereby can reduce noise, and can prevent the draining pump for washing machine that various accessories are impaired.
To achieve these goals, comprise according to draining pump of the present invention: impeller, certain position in the inner peripheral surface of impeller is protruding with the impeller head; Shell, shell comprise impeller accommodation section of accommodating above-mentioned impeller and the rotor accommodation section of accommodating rotor; Along the integrally formed running shaft in the axle center of above-mentioned rotor; The driving force transfer unit.Here, above-mentioned driving force transfer unit is incorporated into above-mentioned running shaft, and when above-mentioned running shaft rotates to the degree with certain tripping force, because the effect of center of circle power is hung on the impeller head of above-mentioned impeller, thereby makes above-mentioned impeller rotation.
In addition, to achieve these goals, the draining pump according to another one embodiment of the present invention comprises: impeller, impeller possess has inside to be an accommodation section of hollow state, and possesses a plurality of blades that have along the outer periphery formation of above-mentioned accommodation section; Shell, shell comprise impeller accommodation section of accommodating above-mentioned impeller and the rotor accommodation section of accommodating rotor; Along the integrally formed running shaft in the axle center of above-mentioned rotor; The axle connecting part that combines with above-mentioned running shaft axle; At least more than one joint.Here, the length of joint is longer than above-mentioned axle connecting part and is constituted distance between the internal face of an accommodation section of above-mentioned impeller, and an end is connected in above-mentioned axle connecting part, and the other end is connected in the internal face of above-mentioned accommodation section.
As mentioned above, the present invention has following effect: according to the structure of draining pump for washing machine of the present invention, can be under the state that tripping force is fully guaranteed rotary blade, therefore can drive above-mentioned impeller smoothly.
The effect of the present invention that it may be noted that especially is: because in order to rotate above-mentioned impeller and the collision frequency between the impeller head reach and minimize, therefore the caused damage of frequent impact is reached and minimize, can also make because the caused frequent noise of above-mentioned impact reaches and minimizes.
Description of drawings
Fig. 1 is the oblique drawing that shows the surface structure of general draining pump in the past.
Fig. 2 is the I-I line sectional drawing of displayed map 1.
Fig. 3 is that the impeller head of displayed map 2 and the part of rotating shaft head are cut exploded perspective view.
Fig. 4 is the II-II line sectional drawing that shows Fig. 2 of the operational relation between impeller head and the rotating shaft head.
Fig. 5 is the sectional drawing of demonstration according to the internal structure of the draining pump of embodiments of the invention.
Fig. 6 is that demonstration is used for the impeller of explanatory drawing 5 and the part of the marriage relation between the driving force transfer unit is cut exploded perspective view.
Fig. 7 is the III-III line sectional drawing of displayed map 5.
Fig. 8 shows when the draining pump be used to illustrate according to embodiments of the invention drives the sectional drawing of the relation between impeller and the driving force transfer unit.
Fig. 9 is the sectional drawing of the demonstration of summary according to another embodiment of the driving force transfer unit of draining pump of the present invention.
Figure 10 is the sectional drawing of demonstration according to the internal structure of the draining pump of the second embodiment of the present invention.
Figure 11 shows to be used to illustrate the impeller of Figure 10 and the part incision exploded perspective view of the marriage relation between the driving force transfer unit.
Figure 12 is the III-III line sectional drawing that shows Figure 10.
Figure 13 shows when the draining pump be used to illustrate according to the second embodiment of the present invention drives the sectional drawing of the relation between impeller and the driving force transfer unit.
The major component description of reference numerals
100: shell 110: the impeller accommodation section
120: rotor accommodation section 130: suction port
140: exhaust port 200: stator
300: rotor 400: running shaft
500: impeller 510: an accommodation section
511: impeller head 520: blade
710: connecting part 720: constriction
721: weight 722: elastic component
911: retaining ring part 910: the axle connecting part
920: joint 921: hook portion
Embodiment
Below, with reference to Fig. 5 to Fig. 9, the possible embodiment to according to draining pump of the present invention is described in more detail.
At first, Fig. 5 and Fig. 6 are the draining pumps that shows according to embodiments of the invention.
That is, the draining pump according to embodiments of the invention comprises that substantially following components constitutes: shell 100; Impeller 500; Running shaft 400; The driving force transfer unit.
Here, above-mentioned shell 100 comprises impeller accommodation section 110 of accommodating impeller 500 and the rotor accommodation section 120 of accommodating rotor 300, and above-mentioned shell constitutes the outward appearance of draining pump.
At this moment, possess in the above-mentioned rotor accommodation section 120 rotor 300 that is made of permanent magnet is arranged.The outer periphery of above-mentioned rotor accommodation section 120 possesses stator 200 is arranged.
In addition, the top of above-mentioned shell 100 is formed with and makes laundry water flow into suction port 130 in the above-mentioned impeller accommodation section 110.One side of above-mentioned impeller accommodation section 110 is formed with the exhaust port 140 of the laundry water that is used to discharge above-mentioned inflow.
The structure of above-mentioned shell 100 can be other multiple structures that are different from said structure.But in an embodiment of the present invention, the structure of shell is identical with shell 10 structures of in the past general draining pump.
In addition, above-mentioned impeller 500 comprises that an accommodation section 510 and a plurality of blade 520 constitute.
A certain position in the inner peripheral surface of above-mentioned accommodation section 510 is protruded and is formed with impeller head 511.Above-mentioned a plurality of blade 520 is peripheral integrally formed around above-mentioned accommodation section 510.
In addition, the axle center of above-mentioned running shaft 400 rotor 300 of accommodating in the rotor accommodation section 120 of above-mentioned shell 100 is integrally formed.The effect of above-mentioned running shaft is that the rotating force with above-mentioned rotor 300 is delivered to impeller 500.
In addition, the structure of tool feature among the present invention, that is: above-mentioned driving force transfer unit is incorporated into the end of above-mentioned running shaft 400, and when above-mentioned running shaft 400 rotates to the degree with certain tripping force, above-mentioned driving force transfer unit will contact with the impeller head 511 of above-mentioned impeller 500, thereby make above-mentioned impeller 500 rotations.
Above-mentioned driving force transfer unit comprises connecting part 710 and constriction 720.
Above-mentioned connecting part 710 combines with 400 on above-mentioned running shaft.
In addition, above-mentioned constriction 720 is arranged on the face of above-mentioned connecting part 710, and when tripping force is able to make the degree of impeller 500 rotations, because the effect of center of circle power, above-mentioned constriction will open towards the inner peripheral surface of above-mentioned impeller 500, and is hung on above-mentioned impeller head 511.
In the structural drawing of the oblique drawing of Fig. 6 and Fig. 7, specifically shown the structure of above-mentioned constriction 720.
That is, above-mentioned constriction 720 comprises: the weight 721 of at least more than one that contacts with above-mentioned impeller head 511; One end combines with above-mentioned weight 721, and the other end is connected at least more than one elastic component 722 of the upper central part of above-mentioned connecting part 710.
Above-mentioned weight 721 is preferably made by metal material.This is in order to make above-mentioned weight 721 can obtain center of circle power fully.
Special needs to be pointed out is that the bi-side of above-mentioned weight 721 are corresponding to the shape of the bi-side of above-mentioned impeller head 511.
For example, the bi-side of above-mentioned impeller head 511 inwardly concave formation towards the sense of rotation of running shaft 400, and the bi-side of above-mentioned weight 721 then are recessed in the bi-side of above-mentioned impeller head 511.
In addition, for the recuperability of the upper central part direction that resets into above-mentioned connecting part 710 being provided for above-mentioned weight 721, above-mentioned elastic component 722 is preferably led circular bending formation towards clockwise direction or counter clockwise direction.
Special needs to be pointed out is to have certain elastic force in order to make above-mentioned elastic component 722, above-mentioned elastic component is preferably made the lead form of synthetic resin material.
Do not have the explanation symbol 722a be formed as one in above-mentioned elastic component 722 in conjunction with the hook.Above-mentioned effect in conjunction with hook 722a is: make above-mentioned elastic component 722 be incorporated into above-mentioned weight 721.
Below, will the process that aforesaid draining pump structure according to embodiments of the invention carries out draining be described.
At first, along with the draining stroke of washing machine begins, power supply supplies to draining pump, and rotor 300 will be along the periphery rotation of stator 200.
Therefore, along with the rotation of running shaft 400, the connecting part 710 that constitutes the driving force transfer unit also will rotate.Here, above-mentioned running shaft is integrally formed along the axle center of above-mentioned rotor 300.
At this moment, under the sufficient inadequately primary starting state of the rotating force of above-mentioned running shaft 400, have only above-mentioned connecting part 710 along with above-mentioned running shaft 400 rotations, and constriction 720 can not be hung on impeller head 511.
Promptly, above-mentioned constriction 720 is perhaps kept as shown in Figure 7 A-stage (because the recuperability of elastic component 722, resting on the state of the central part on 710 of the connecting parts), perhaps since not with scope that above-mentioned impeller head 511 contact in, rotate with trickle open state.When therefore starting in the early stage, can not make impeller 500 rotations.
But, after the rotation of above-mentioned running shaft 400 begins, be arranged at the weight 721 of the constriction 720 on the face of above-mentioned connecting part 710, will obtain center of circle power owing to the rotation of above-mentioned connecting part 710.And because the effect of above-mentioned center of circle power, the perimeter sides towards above-mentioned connecting part 710 moves gradually.
At this moment, constitute the elastic component 722 of the constriction 720 of above-mentioned driving force transfer unit, will desire to break away from center of circle power, open laterally gradually owing to above-mentioned weight 721 to the outside.
Therefore, the weight 721 of above-mentioned constriction 720 is in gradually along with the rotation of the internal face of an accommodation section 510 that is formed with impeller head 511, in above-mentioned rotary course, with a certain contacts side surfaces of above-mentioned impeller head 511.
Above-mentioned state as shown in Figure 8.
At this moment, therefore above-mentioned weight 721, can rotate above-mentioned impeller 500 smoothly with the state rotation of sufficient tripping force with the initial stage restraining force degree that can remove impeller 500.
Because the rotation of above-mentioned impeller 500, the suction port 130 that laundry water will form by the top of shell 100 flows in the impeller accommodation section 110, and the exhaust port 140 that the laundry water of above-mentioned inflow will continue to form by above-mentioned impeller accommodation section 110 1 sides is discharged.
In addition, in case aforesaid a succession of process finishes, promptly the draining stroke finishes, and the power supply supply that offers rotor also will be interrupted, and therefore, the rotation of rotor 300 also will stop, and the rotation of running shaft 400 equally also can stop gradually.
In addition, the rotational speed that is incorporated into the connecting part 710 of above-mentioned running shaft 400 can weaken equally gradually, and the center of circle power that weight had of constriction 720 also can weaken gradually.
At this moment, because the effect of the recuperability of the elastic component 722 of the above-mentioned constriction 720 of formation, weight 721 will be got back to initial position gradually, the central side of promptly above-mentioned connecting part 710, thereby the restraining force of releasing impeller head 511.
As mentioned above, the reason that why will make the position of the weight 721 that constitutes constriction 720 get back to original position is: when carrying out the draining stroke once more, before above-mentioned constriction 720 does not also obtain sufficient primary starting power, can keep constraint release state with impeller head 511.
Its result, through aforesaid a succession of process, along with stopping of impeller 500, the draining stroke will finish.
In addition, in the draining pump structure according to embodiments of the invention, constitute the shape of elastic component 722 of the constriction 720 of driving force transfer unit, be not limited in aforesaid embodiment's shape.
That is, so long as following structures, though then form how all it doesn't matter: be subjected at weight 721 can fully opening laterally under the situation of center of circle power effect.And under the situation that the center of circle of above-mentioned weight 721 power is removed, above-mentioned weight 721 can be got back to original position in order not retrain impeller head 511.
For example, can be as shown in Figure 9, above-mentioned elastic component 722 can be to be made of disc spring.
Below, with reference to Figure 10 to Figure 13, second embodiment to according to draining pump of the present invention is described in more detail.
At first, Figure 10 and Figure 11 are the draining pumps that shows according to the second embodiment of the present invention.
That is, the draining pump according to embodiments of the invention comprises that substantially following components constitutes: shell 100; Impeller 500; Running shaft 400; Axle connecting part 910; Joint 920.
Here, above-mentioned shell 100 comprises impeller accommodation section 110 of accommodating impeller 500 and the rotor accommodation section 120 of accommodating rotor 300, and above-mentioned shell constitutes the outward appearance of draining pump.
At this moment, possess in the above-mentioned rotor accommodation section 120 rotor 300 that is made of permanent magnet is arranged.The outer periphery of above-mentioned rotor accommodation section 120 possesses stator 200 is arranged.
In addition, the top of above-mentioned shell 100 is formed with and makes laundry water flow into suction port 130 in the above-mentioned impeller accommodation section 110.One side of above-mentioned impeller accommodation section 110 is formed with the exhaust port 140 of the laundry water that is used to discharge above-mentioned inflow.
The structure of above-mentioned shell 100 can be other multiple structures that are different from said structure.But in an embodiment of the present invention, the structure of shell is identical with shell 10 structures of in the past general draining pump.
In addition, above-mentioned impeller 500 comprises an accommodation section 510 and a plurality of blade 520.
Above-mentioned accommodation section 510 is the state of inner hollow.Above-mentioned each blade 520 is integrally formed along the outer circumferential face of above-mentioned accommodation section 510.
In addition, the axle center of above-mentioned running shaft 400 rotor 300 of accommodating in the rotor accommodation section 120 of above-mentioned shell 100 is integrally formed.The effect of above-mentioned running shaft is: the rotating force of above-mentioned rotor 300 is delivered to impeller 500.
In addition, above-mentioned axle connecting part 910 is incorporated into the state of above-mentioned running shaft 400 with axle, together rotates with above-mentioned running shaft 400.
In addition, the effect of above-mentioned joint 920 is: the tripping force that will produce by the rotation of above-mentioned axle connecting part 910 passes to above-mentioned impeller 500.
One end of above-mentioned joint 920 is connected in above-mentioned axle connecting part 910, and the other end is connected in the internal face of above-mentioned accommodation section 510.
At this moment, the length of joint 920 is longer than above-mentioned axle connecting part 910 and is constituted distance between the internal face of an accommodation section 510 of above-mentioned impeller 500.Optimal length is: after above-mentioned running shaft 400 rotations for several times, produce sufficient tripping force, then be tight state, thereby can rotate the length of above-mentioned impeller 500.
Aforesaid joint 920 preferably is made of the thinner line that can be wrapped in above-mentioned axle connecting part 910, and preferably is made of the lead of frangibility not.
Special needs to be pointed out is, under the state that is wound in above-mentioned axle connecting part 910 at above-mentioned joint 920, if the rotation of running shaft 400 stops, then provide and the rightabout recuperability of winding direction, thereby above-mentioned joint 920 is unclamped from above-mentioned axle connecting part 910, and above-mentioned joint should be to constitute by having certain flexible lead.
In addition, above-mentioned joint 920 can be removably to be connected with above-mentioned axle connecting part 910, also can be integrally formed.
In addition, the internal face of an above-mentioned joint 920 and an accommodation section 510 also can be integrally formed, but in this case, it is complicated that preparation process can become.
Therefore, preferably removably combination of the internal face of an accommodation section 510 of above-mentioned joint 920 and above-mentioned impeller 500.
At this moment, form retaining ring part 911 at an accommodation section of above-mentioned impeller 500 510 internal faces, the end of above-mentioned joint 920 then forms the hook portion 921 that can be hung on above-mentioned retaining ring part 911, therefore, becomes removably structure between above-mentioned accommodation section 510 and the joint 920.
In addition, in above-mentioned structure, can only possess a joint 920, but, preferably possess a plurality of joints for better work.
But, if above-mentioned joint 920 is too much, may be intertwined between each joint 920, and the assembly working difficulty that also becomes, therefore,, possess two joints and constitute preferably according to embodiments of the invention.
Special needs to be pointed out is that in the plane, above-mentioned each joint 920 should be a benchmark with axle connecting part 910, symmetrically.
That is, at the position with the mutual correspondence of the guide center of above-mentioned axle connecting part 910, connect an end of each joint 920 separately, the other end of above-mentioned each joint 920 then is connected in position corresponding mutually in the above-mentioned internal face 510 separately.
Below, will the process that aforesaid draining pump structure according to the second embodiment of the present invention carries out draining be described.
At first, along with the draining stroke of washing machine begins, power supply supplies to draining pump, and rotor 300 will be along the periphery rotation of stator 200.
Therefore, the running shaft 400 of above-mentioned axle center combination along rotor 300 will rotate, and meanwhile, because the rotation of above-mentioned running shaft 400, an axle connecting part 910 equally also will rotate.
At this moment, as shown in figure 12, joint 920 is loose state between an accommodation section 510 internal faces of above-mentioned axle connecting part 910 and impeller 500, even therefore above-mentioned axle connecting part 910 rotates along with the rotation of above-mentioned running shaft 400, in the early stage, joint can not be passed to the rotating force of above-mentioned running shaft 400 accommodation section 510 of above-mentioned impeller 500.
That is, at the rotation initial stage of above-mentioned running shaft 400,920 of above-mentioned joints simply are wound in the periphery of above-mentioned axle connecting part 910.
But the number of revolution of above-mentioned running shaft 400 increases, and above-mentioned joint 920 is wound in the periphery of above-mentioned axle connecting part 910 to greatest extent, and above-mentioned joint 920 is tight state between the internal face of an above-mentioned axle connecting part 910 and an accommodation section 510.
Therefore, the tripping force of above-mentioned running shaft 400 will be delivered to above-mentioned impeller 500 by above-mentioned joint 920, thereby make above-mentioned impeller 500 rotations.
Above-mentioned state as shown in figure 13.
At this moment, above-mentioned running shaft 400 will obtain the tripping force greater than the restraining force that offers above-mentioned impeller 500, and rotation.Therefore, above-mentioned impeller 500 is rotated smoothly.
Because the rotation of above-mentioned impeller 500, the suction port 130 that laundry water will form by the top of shell 100 flows in the impeller accommodation section 110, and the exhaust port 140 that the laundry water of above-mentioned inflow will continue to form by above-mentioned impeller accommodation section 110 1 sides is discharged.
In addition, in case aforesaid a succession of process finishes, promptly the draining stroke finishes, and the power supply supply that offers rotor also will be interrupted, and therefore, the rotation of rotor 300 also will stop, and the rotation of running shaft 400 and axle connecting part 910 equally also can stop gradually.
As mentioned above, in case the rotation of axle connecting part 910 stops, because the recuperability of joint 920, till above-mentioned joint 920 restored, above-mentioned axle connecting part 910 will be to opposite spin.Therefore, as initial state, above-mentioned joint 920 will be loose state between an accommodation section 510 internal faces of above-mentioned axle connecting part 910 and impeller 500.
As mentioned above, joint 920 is restored for loose state, be for when carrying out the draining stroke once more, before running shaft 400 does not obtain sufficient primary starting power, keeps the constraint release state with impeller 500.
Its result, through aforesaid a succession of process, along with stopping of impeller 500, the draining stroke will finish.
Claims (17)
1. a draining pump is characterized in that, comprising:
Impeller, certain position in the inner peripheral surface of impeller is protruding with the impeller head;
Shell, shell comprise impeller accommodation section of accommodating above-mentioned impeller and the rotor accommodation section of accommodating rotor;
Along the integrally formed running shaft in the axle center of above-mentioned rotor;
The driving force transfer unit is incorporated into above-mentioned running shaft, and when above-mentioned running shaft rotates to the degree with certain tripping force, because the effect of center of circle power is hung on the impeller head of above-mentioned impeller, thereby makes above-mentioned impeller rotation.
2. draining pump according to claim 1 is characterized in that:
Above-mentioned driving force transfer unit comprises: the connecting part that combines with above-mentioned running shaft axle;
Be arranged on the face of above-mentioned connecting part, be able at tripping force under the situation of degree of rotary blade, because the effect of center of circle power, open to the inner peripheral surface of impeller, and be hung on the constriction of above-mentioned impeller head.
3. draining pump according to claim 2 is characterized in that:
Above-mentioned constriction comprises:
The weight of at least more than one that contacts with above-mentioned impeller head;
One end combines with above-mentioned weight, and the other end is connected at least more than one elastic component of the upper central part of above-mentioned connecting part.
4. draining pump according to claim 3 is characterized in that:
For the recuperability to the upper central part direction of above-mentioned connecting part is provided to above-mentioned weight, above-mentioned elastic component is towards clockwise direction or counterclockwise leads circular bending formation.
5. draining pump according to claim 3 is characterized in that:
Above-mentioned weight is to be made by metal material.
6. draining pump according to claim 3 is characterized in that:
The bi-side of above-mentioned weight are corresponding to the bi-side shape of above-mentioned impeller head.
7. draining pump according to claim 3 is characterized in that:
Above-mentioned elastic component is to be made of disc spring.
8. a draining pump is characterized in that, comprising:
Impeller, above-mentioned impeller possess has inside to be an accommodation section of hollow state, and possesses a plurality of blades that have along the outer periphery formation of above-mentioned accommodation section;
Shell, above-mentioned shell comprise impeller accommodation section of accommodating above-mentioned impeller and the rotor accommodation section of accommodating rotor;
Along the integrally formed running shaft in the axle center of above-mentioned rotor;
The axle connecting part that combines with above-mentioned running shaft axle;
At least more than one joint, here, the length of joint is longer than above-mentioned axle connecting part and is constituted distance between the internal face of an accommodation section of above-mentioned impeller, and an end is connected in above-mentioned axle connecting part, and the other end is connected in the internal face of above-mentioned accommodation section.
9. draining pump according to claim 8 is characterized in that:
Above-mentioned joint is for twining the line of above-mentioned axle connecting part.
10. draining pump according to claim 9 is characterized in that:
Above-mentioned line is a lead.
11. draining pump according to claim 9 is characterized in that:
Above-mentioned line is the rubber-like lead, therefore under the situation that is wound in above-mentioned axle connecting part, can provide the recuperability of unclamping direction.
12. draining pump according to claim 8 is characterized in that:
The length of above-mentioned joint is enough to make joint to be tight state under the situation that above-mentioned running shaft rotates for several times.
13. draining pump according to claim 8 is characterized in that:
The structure that above-mentioned axle connecting part and above-mentioned joint are formed as one.
14. draining pump according to claim 8 is characterized in that:
An accommodation section internal face of above-mentioned impeller and the structure that above-mentioned joint is formed as one.
15. draining pump according to claim 8 is characterized in that:
An accommodation section internal face of above-mentioned impeller and above-mentioned joint independently form separately, and are the structure that removably connects between the two.
16. draining pump according to claim 15 is characterized in that:
Therefore an accommodation section internal face of above-mentioned impeller is formed with retaining ring part, and the end of above-mentioned joint is formed with the hook portion that can be hung on above-mentioned retaining ring part, and above-mentioned accommodation section and joint can load and unload each other.
17. draining pump according to claim 8 is characterized in that:
Above-mentioned joint is provided as two, and an end is connected in the position with the mutual correspondence of the guide center of above-mentioned axle connecting part separately, and the other end then is connected in the position of the mutual correspondence of above-mentioned accommodation section internal face separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510013883 CN1884838A (en) | 2005-06-23 | 2005-06-23 | Water drainage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510013883 CN1884838A (en) | 2005-06-23 | 2005-06-23 | Water drainage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1884838A true CN1884838A (en) | 2006-12-27 |
Family
ID=37583130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510013883 Pending CN1884838A (en) | 2005-06-23 | 2005-06-23 | Water drainage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1884838A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464453A (en) * | 2020-03-31 | 2021-10-01 | 日立安斯泰莫株式会社 | Electric liquid feeding pump |
-
2005
- 2005-06-23 CN CN 200510013883 patent/CN1884838A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464453A (en) * | 2020-03-31 | 2021-10-01 | 日立安斯泰莫株式会社 | Electric liquid feeding pump |
| CN113464453B (en) * | 2020-03-31 | 2024-05-24 | 日立安斯泰莫株式会社 | Electric liquid feeding pump |
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