CN202914302U - Balance pump - Google Patents
Balance pump Download PDFInfo
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- CN202914302U CN202914302U CN 201220540871 CN201220540871U CN202914302U CN 202914302 U CN202914302 U CN 202914302U CN 201220540871 CN201220540871 CN 201220540871 CN 201220540871 U CN201220540871 U CN 201220540871U CN 202914302 U CN202914302 U CN 202914302U
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- joint
- valve
- way valve
- back pressure
- fastener
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Abstract
A balance pump is provided with a pump body, a drive motor, a transmission device, a first connecting pipe, a second connecting pipe, a first back pressure valve and a second back pressure valve. The pump body is provided with a first end, a pump cavity, a ceramic piston and a second end, wherein the first end and the second end are arranged at two ends of the pump cavity and communicated with the pump cavity, the ceramic piston is interstitially assembled and movably arranged in the pump cavity, the ceramic piston is connected with one end of the transmission device, the other end of the transmission device is connected with a motor shaft of the motor, the first end is respectively provided with a first connector and a second connector, the second end is provided with a third connector and a fourth connector, a one-way valve is arranged in each connector, one end of the first connecting pipe is connected with the second connector, the other end of the first connecting pipe is connected with the first back pressure valve, one end of the second connecting pipe is connected with the fourth connector, and the other end of the second connecting pipe is connected with the second back pressure valve. The balance pump can control flow balance accurately, and simultaneously provides motive power to liquid flowing.
Description
Technical field
The utility model relates to the medical equipment technical field, particularly relates to a kind of dialysis machine ballast pump.
Background technique
Haemodialysis is one of effective means of the various acute and chronic kidney failure diseases for the treatment of, by carrying out haemodialysis, and life-span that can the proper extension patient.Hemodialysis technology is relatively ripe, and the quality that further improves haemodialysis becomes one of developing direction of patients with renal failure treatment.
Carry out haemodialysis and usually adopt dialysis machine, dialyzer and corresponding connecting pipeline to carry out, arterial blood, dislysate enter in the dialyzer respectively in dialyzer.The flow direction of dislysate is opposite with direction of flow of blood in dialyzer, blood and dislysate are under the pressure-acting of osmotic pressure and dislysate, toxin and moisture in the blood exchange, the dislysate that contains toxin is got rid of from the dislysate drain pipe, and the blood after the dialysis then is delivered to human vas again.In dialysis procedure, need to dislysate be pumped into dialyzer and the waste liquid in the dialyzer is pumped from dialyzer by pump.
Usually, ballast pump pumps into fresh dialysis fluid the fresh liquid input end of dialyzer, simultaneously the waste liquid exhaust end of dialyzer is discharged.In order to ensure dialysis-effect, must effectively prevent the generation of dislysate refluence phenomenon.Ballast pump of the prior art is provided with one-way valve so that liquid one-way flowing in the joint usually, but the pressure of ballast pump outlet port (namely joint) changes greatly during owing to the ballast pump action, cause the resistance flowing effect of one-way valve limited, can not prevent effectively that flowing backwards from appearring in liquid, thereby can not accurately control flow equilibrium.
Therefore, not enough for prior art, provide a kind of ballast pump that can the liquid with precise control flow very necessary to overcome the prior art deficiency.
Summary of the invention
The purpose of this utility model is to avoid the deficiencies in the prior art part and a kind of ballast pump is provided, and this ballast pump can the liquid with precise control flow.
The purpose of this utility model realizes by following technical measures.
A kind of ballast pump is provided with the pump housing, the first connecting tube, the second connecting tube, the first back pressure valve and the second back pressure valve;
The described pump housing is provided with first end, pump chamber and the second end, and described first end, described the second end are arranged at the two ends of described pump chamber and are communicated with described pump chamber;
Described first end is provided with the first joint and the second joint that is communicated with described first end respectively, be provided with the first one-way valve in described the first joint so that the unidirectional inflow first end of liquid, be provided with the second one-way valve in described the second joint so that liquid from the unidirectional outflow of first end;
Described the second end is provided with the 3rd joint and the 4th joint that is communicated with described the second end respectively, be provided with the 3rd one-way valve in described the 3rd joint so that unidirectional inflow the second end of liquid, be provided with the 4th one-way valve in described the 4th joint so that liquid from the unidirectional outflow of the second end;
Described the first connecting tube one end is connected with described the second joint, and the described first connecting tube the other end is connected with described the first back pressure valve, and described the second connecting tube one end is connected with described the 4th joint, and the described second connecting tube the other end is connected with described the second back pressure valve.
OnThe cracking pressure of stating the second back pressure valve is set to 40-60KPa; The cracking pressure of described the 4th back pressure valve is set to 40-60KPa.
The cracking pressure of above-mentioned the second back pressure valve is set to 50KPa; The cracking pressure of described the 4th back pressure valve is set to 50KPa.
Above-mentioned the first joint, described the second joint, described the 3rd joint are identical with the specification of described the 4th joint.
In above-mentioned the first one-way valve, described the second one-way valve, described the 3rd one-way valve, described the 4th one-way valve at least one adopts the lifting and pulling type one-way valve;
Described lifting and pulling type one-way valve is provided with valve pocket and Elastic valve core, described Elastic valve core is provided with fastener, described Elastic valve core be assemblied in described valve pocket and described fastener be assemblied in described valve pocket an end so that described Elastic valve core can elastic telescopic to separate with described valve pocket or to fit.
Above-mentioned valve pocket is set to beveled structure, and described valve pocket comprises tube, umbrella flank and annular plate surface;
Described umbrella flank is made of plural rib, has the space between adjacent two ribs, and described rib is umbrella to be arranged, and an end of every root bone is fixedly connected with described annular plate surface, and the other end of every root bone is fixedly connected with described tube;
Described Elastic valve core also is provided with cylindrical portion, taper section and snap ring, and described cylindrical portion one end is fixedly connected with the small end of described taper section, and the described cylindrical portion the other end is fixedly connected with described fastener, and the large end of described taper section is fixedly connected with described snap ring;
Described cylindrical portion is assemblied in described tube and described fastener snapping is assemblied in described tube one end, and described taper section is assemblied in described umbrella flank, and described snap ring is assemblied in described annular plate surface.
OnState annular plate surface and be provided with the circular groove that is complementary with described snap ring, described snap ring is assemblied in described circular groove.
OnState fastener and be set to cone structure, the diameter of described fastener is greater than the external diameter of described cylindrical portion.
OnState the diameter of fastener greater than the external diameter 3-6mm of described cylindrical portion.
Above-mentioned ballast pump also is provided with drive motor and transmission device, the described pump housing also is provided with Ceramic piston, the assembling of described Ceramic piston gap also is movably set in described pump chamber, described Ceramic piston is connected with described transmission device one end, and the described transmission device the other end is connected with the motor shaft of described motor;
Described transmission device is set to eccentric shaft, and described Ceramic piston is provided with groove, is equipped with slide block in the described groove, and described eccentric shaft one end is connected with described slide block, and the described eccentric shaft the other end is connected with described motor shaft.
A kind of ballast pump of the present utility model is provided with the pump housing, the first connecting tube, the second connecting tube, the first back pressure valve and the second back pressure valve; The described pump housing is provided with first end, pump chamber and the second end, and described first end, described the second end are arranged at the two ends of described pump chamber and are communicated with described pump chamber; Described first end is provided with the first joint and the second joint that is communicated with described first end respectively, be provided with the first one-way valve in described the first joint so that the unidirectional inflow first end of liquid, be provided with the second one-way valve in described the second joint so that liquid from the unidirectional outflow of first end; Described the second end is provided with the 3rd joint and the 4th joint that is communicated with described the second end respectively, be provided with the 3rd one-way valve in described the 3rd joint so that unidirectional inflow the second end of liquid, be provided with the 4th one-way valve in described the 4th joint so that liquid from the unidirectional outflow of the second end; Described the first connecting tube one end is connected with described the second joint, and the described first connecting tube the other end is connected with described the first back pressure valve, and described the second connecting tube one end is connected with described the 4th joint, and the described second connecting tube the other end is connected with described the second back pressure valve.This ballast pump is by arranging the first back pressure valve and the second back pressure valve, raised the conducting pressure of the second one-way valve and the 4th one-way valve, avoid causing the second one-way valve, the 4th one-way valve to produce backflow phenomenon, thereby can accurately control flow equilibrium owing to the pressure variation in ballast pump outlet port.And the setting of back pressure valve although the outlet pressure of ballast pump exists, produces larger pulsation phenomenon in the time of can avoiding in the whole device flow of fluid, and is milder when liquid is flowed through dialyzer, thereby guarantees the dialysis treatment effect.
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Description of drawings
Utilize accompanying drawing that the utility model is further described, but the content in the accompanying drawing does not consist of any restriction of the present utility model.
Fig. 1 is the structural representation of a kind of ballast pump of the utility model;
Fig. 2 is the decomposing schematic representation of Fig. 1;
Fig. 3 is the second joint structure schematic representation of Fig. 1;
Fig. 4 is the decomposing schematic representation of Fig. 3;
Fig. 5 is " A-A " sectional view that removes the nut part of Fig. 3.
In Fig. 1 to Fig. 5, comprising:
The pump housing 1,
The first joint 100, the second joint 200,
The first Ceramic piston 310, the first groove 320, the first slide block 330,
The second end 400,
The 3rd joint 410,
The 4th joint 420,
Eccentric shaft 600,
The first connecting tube 720, the second connecting tube 740,
The first back pressure valve 820, the second back pressure valve 840,
The second joint input end 210,
Screw thread 211,
The second joint output terminal 220,
The second one-way valve 230,
Valve pocket 231,
Umbrella flank 2312,
Fastener 2321,
Taper section 2323,
Snap ring 2324,
Embodiment
With the following Examples the utility model is further described.
Embodiment 1.
A kind of ballast pump to shown in Figure 5, is provided with the pump housing 1, drive motor 500, transmission device, the first connecting tube 720, the second connecting tube 740, the first back pressure valve 820 and the second back pressure valve 840 such as Fig. 1.For the better location of realizing, a support body can also be set, motor 500 is installed on support body.
The pump housing 1 is provided with first end 10, pump chamber 300, Ceramic piston 310 and the second end 400, and first end 10, the second end 400 are arranged at the two ends of pump chamber 300 and are communicated with pump chamber 300.
The assembling of Ceramic piston 310 gaps also is movably set in pump chamber 300, and Ceramic piston 310 is connected with transmission device one end, and the transmission device the other end is connected with the motor shaft 510 of motor 500.
Concrete, transmission device is set to eccentric shaft 600, and Ceramic piston 310 is provided with groove 320, is equipped with slide block 330 in the groove 320, and eccentric shaft 600 1 ends are connected with slide block 330, and eccentric shaft 600 the other ends are connected with motor shaft 510.
The second end 400 is provided with the 3rd joint 410 and the 4th joint 420 that is communicated with the second end 400 respectively, be provided with the 3rd one-way valve in the 3rd joint 410 so that be provided with the 4th one-way valve in unidirectional inflow the second end of liquid 400, the four joints 420 so that liquid from the 400 unidirectional outflows of the second end.
The first connecting tube 720 1 ends are connected with the second joint 200, and the first connecting tube 720 the other ends are connected with the first back pressure valve 820, and the second connecting tube 740 1 ends are connected with the 4th joint 420, and the second connecting tube 740 the other ends are connected with the second back pressure valve 840.The structure of back pressure valve is general knowledge known in this field, does not repeat them here.
Need to prove that the first joint 100, the second joint 200, the 3rd joint 410 and the 4th joint 420 can arrange in the axisymmetric mode, also can be not limited to the axisymmetric mode.
The cracking pressure of the second back pressure valve 840 is to be set to 40-60KPa as good, and the cracking pressure of the 4th back pressure valve is to be set to 40-60KPa as good.Usually the cracking pressure of preferred the second back pressure valve 840 is set to 50KPa, and the cracking pressure of the 4th back pressure valve is set to 50KPa, both can satisfy the requirement of most one-way valve anti-backflows, and with low cost.
When this ballast pump specifically uses the first joint 100 is connected with the fresh liquid device in volume, the second joint 200 is connected with the fresh liquid input end of dialyzer, and the 3rd joint 410 is connected with the waste liquid output terminal of dialyzer, and the 4th joint 420 is connected to the waste liquid device in volume.When motor 500 work, driving eccentric shaft 600 drive Ceramic pistons 310 such as motor shaft 510 moves towards first end 10, this moment, first end 10 internal liquids were compressed, and the fluid pressure in the first end 10 is with the second one-way valve opens, and the fresh liquid in the first joint 100 is discharged from the second joint 200.Because Ceramic piston 310 moves towards the first joint 100, at this moment, the cavity volume in the second end 400 increases and forms negative pressure, the 4th closed check valve, and the 3rd one-way valve opens, waste liquid enters the second end 400 from the 3rd joint 410.
On the contrary, when Ceramic piston 310 oppositely moves to the second end 400, so that the cavity volume of the second end 400 correspondences diminishes, liquid in the second end 400 is pushed the 4th one-way valve open and is outwards flowed out, this moment, first end 10 cavity volume increased, form negative pressure and produce suction with the first one-way valve opens suction liquid, all the other one-way valves of effect owing to pressure in this process are in closed condition.
This ballast pump is provided with the first back pressure valve 820 and the second back pressure valve 840.Back pressure valve the cracking pressure threshold value that has improved one-way valve is set, namely only have when the pressure of liquid during greater than the cracking pressure of back pressure valve, liquid just can carry out one-way flow.
By increasing back pressure valve, for one-way valve provides a stable pressure regulator, can control more efficiently and effectively circulation and the cut-off of liquid.Could conducting when the pressure that provides when pump is be provided greater than the conducting pressure of back pressure valve, liquid just can flow out from the outlet port of back pressure valve, in case the pressure that provides during less than the conducting pressure of back pressure valve then the lifting and pulling type one-way valve close at once, liquid stops to flow.
In the dialyzer technical field, usually by design one-way valve is arranged at corresponding liquid one-way flowing pipeline, think in theory and can realize that by one-way valve liquid is set one-way flow the phenomenon that flows backwards can not occur.But practice is found, as when the one-way valve of selecting two kinds of unlike materials to make its outlet directly being connected with a conduit and vertical placement, the joint input end is equipped with water column down in the conduit, owing to the effect of one-way valve one-way flow, the water column in the conduit should not flow backwards and flow out from input end in theory.But actual conditions are: a kind of one-way valve of material is until water column just can be accomplished good sealing effect during greater than 40 centimetres, can occur the more serious phenomenon of leakage at water column less than 40 centimetres of interval one-way valves of this section, and the one-way valve of another kind of material is until water column just can be accomplished good sealing effect during greater than 20 centimetres.
If water-column is considerably beyond 40 centimetres, the one-way valve made of the two kinds of materials seepage that all do not flow backwards fully then.
So set up back pressure valve, increase by a back pressure valve on the one-way valve basis, when back pressure valve is adjusted to certain pressure, dialysis can be realized good sealing effect with one-way valve.Not only can get rid of the impact that the one-way valve of unlike material causes the whole system flow by increasing back pressure valve, and the one-way flow of liquid with precise control more.
The dialysis that two kinds of materials are prepared from is installed on the ballast pump of haemodialysis control unit with unidirectional control device, when flow system flow during at 30 L/h, when the back pressure valve at outlet two ends is adjusted to 40KPa, the total amount of liquid difference that records the two ends of flowing through after a hour through experiment repeatedly is no more than 20ml, error rate is no more than 0.067%, as seen the error rate that increases behind the back pressure valve is in the allowed band of machine, realized flow is controlled accurately, obtained good result for the treatment of.
The size of back pressure pressure regulating valve and the flow of system, the pressure size of the caliber of conduit and ballast pump ingress is relevant.Thereby the user also can reach reasonable control effect when can make this device be fit to various environment according to the pressure of above condition adjusting back pressure valve.
In order to ensure flow equilibrium, prevent that liquid from flowing backwards, the first one-way valve of this ballast pump, the second one-way valve, the 3rd one-way valve, the 4th one-way valve all adopt the lifting and pulling type one-way valve, to improve one-way flow control effect, prevent the liquid reverse flow.
Need to prove that the first one-way valve, the second one-way valve, the 3rd one-way valve, the 4th one-way valve also can arrange wherein some or a plurality of for the lifting and pulling type one-way valve, but to be lifting and pulling type one-way valve best results.
Lifting and pulling type one-way valve such as Fig. 4, shown in Figure 5, be provided with valve pocket 231 and Elastic valve core 232, Elastic valve core 232 is provided with fastener 2321, Elastic valve core 232 be assemblied in valve pocket 231 and fastener 2321 be assemblied in valve pocket 231 an end so that Elastic valve core 232 can elastic telescopic to separate with valve pocket 231 or to fit.
The Elastic valve core 232 of this lifting and pulling type one-way valve is by arranging fastener 2321, and fastener 2321 assembles with valve pocket 231, and when fluid pressure reaches certain threshold values, fluid pressure will be washed Elastic valve core 232 open so that Elastic valve core 232 separates with valve pocket 231.Since fastener 2321 stretch the effect of drawing, the pressure that produces during action can not reach this dialysis with the cracking pressure of one-way valve, thereby can better control the liquid one-way flowing phenomenon generation that prevents from flowing backwards.
In addition because the end assembling of fastener 2321 and valve pocket 231, the pulling force effect of fastener 2321 will so that Elastic valve core 232 not can with valve pocket 231 between separate and excessively depart from, can prevent to a certain extent Elastic valve core 232 distortion.
In addition, because the existence of fastener 2321, Elastic valve core 232 leaves the distance of valve pocket 231 and can unrestrictedly not leave, and is convenient to the liquid with precise control flow.
Concrete, valve pocket 231 is set to beveled structure, and valve pocket 231 comprises tube 2311, umbrella flank 2312 and annular plate surface.
Usually, the diameter of fastener 2321 can satisfy the demands greater than the external diameter 2-10mm of cylindrical portion 2322, the diameter of preferred fastener 2321 is greater than the external diameter 3-6mm of cylindrical portion 2322, and the actual size of fastener 2321 and cylindrical portion 2322 can determine flexibly according to concrete needs.
Preferably, tube 2311, umbrella flank 2312 and annular plate surface are set to integrated formed structure, have characteristics simple in structure, easy to assembly.
Preferably, fastener 2321, cylindrical portion 2322, taper section 2323 and snap ring 2324 are set to integrated formed structure, have characteristics simple in structure, easy to assembly.
The assembling mode of explanation lifting and pulling type one-way valve as an example of the second joint 200 example, the second joint 200 is provided with the second joint input end 210, the second joint output terminal 220, the second one-way valve 230, locking nut 240, consist of valve pocket between the second joint input end 210 and the second joint output terminal 220, the second one-way valve 230 is assemblied in valve pocket.For so that the assembling of the second joint 200 is more firm, the outer wall of the second joint input end 210 is provided with screw thread 211, when the second joint output terminal 220 is assemblied in the second joint input end 210, the second one-way valve 230 is assemblied in valve pocket simultaneously, is tightened in screw thread 211 by locking nut 240 and can realizes good fixing.
In sum, this ballast pump can be controlled liquid one-way flowing by increasing back pressure valve and special lifting and pulling type one-way valve being set, prevent from flowing backwards, thereby can more accurately control the flow of liquid in the dialysis machine, and flow of fluid is steady in the dialyzer, also has characteristics simple in structure, with low cost, easy to use.
Need to prove that this ballast pump is not limited to the first joint and connects fresh liquid, also can as required the first joint be connected waste liquid, and the 3rd joint is connected fresh liquid.
Need to prove that ballast pump is not limited to the ceramic compound pump of present embodiment, also can be the ballast pump of other structure, can realize as long as add back pressure valve at output terminal.
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Embodiment 2.
A kind of ballast pump, other structure is identical with embodiment 1, and difference is: the specification of first end 10, the second end 400 is identical, and the specification of the first joint 100, the second joint 200, the 3rd joint 410, the 4th joint 420 is identical.
Because first end 10, the second end 400 specifications of this ballast pump are identical, and adopt identical the first joint 100, the second joint 200, the 3rd joint 410, the 4th joint 420 of specification.
So in one-period, the waste liquid amount F4 that flows out from the 4th joint 420 outlet ports equates that with the fresh liquid measure X2 that flows out from the second joint 200 outlet ports fresh liquid equates with waste liquid amount in the dialyzer thereby can guarantee to pass in and out in the one-period.
Embodiment 3.
Other structure of a kind of ballast pump is identical with embodiment 1 or 2, and difference is that the pump housing adopts the diaphragm type ballast pump.Diaphragm type balance pump structure is general knowledge known in this field, does not repeat them here.
Because the balance delivery side of pump is provided with back pressure valve, has raised the conducting pressure of one-way valve, avoids causing one-way valve to produce backflow phenomenon owing to the pressure variation in ballast pump outlet port, thereby can accurately control flow equilibrium.And the setting of back pressure valve although the outlet pressure of ballast pump exists, produces larger pulsation phenomenon in the time of can avoiding in the whole device flow of fluid, and is milder when liquid is flowed through dialyzer, thereby guarantees the dialysis treatment effect.
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Should be noted that at last; above embodiment is only in order to the technical solution of the utility model to be described but not to the restriction of the utility model protection domain; although with reference to preferred embodiment the utility model has been done detailed description; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement the technical solution of the utility model, and not break away from essence and the scope of technical solutions of the utility model.
Claims (10)
1. a ballast pump is characterized in that: be provided with the pump housing, the first connecting tube, the second connecting tube, the first back pressure valve and the second back pressure valve;
The described pump housing is provided with first end, pump chamber and the second end, and described first end, described the second end are arranged at the two ends of described pump chamber and are communicated with described pump chamber;
Described first end is provided with the first joint and the second joint that is communicated with described first end respectively, be provided with the first one-way valve in described the first joint so that the unidirectional inflow first end of liquid, be provided with the second one-way valve in described the second joint so that liquid from the unidirectional outflow of first end;
Described the second end is provided with the 3rd joint and the 4th joint that is communicated with described the second end respectively, be provided with the 3rd one-way valve in described the 3rd joint so that unidirectional inflow the second end of liquid, be provided with the 4th one-way valve in described the 4th joint so that liquid from the unidirectional outflow of the second end;
Described the first connecting tube one end is connected with described the second joint, and the described first connecting tube the other end is connected with described the first back pressure valve, and described the second connecting tube one end is connected with described the 4th joint, and the described second connecting tube the other end is connected with described the second back pressure valve.
2. ballast pump according to claim 1, it is characterized in that: the cracking pressure of described the second back pressure valve is set to 40-60KPa; The cracking pressure of described the 4th back pressure valve is set to 40-60KPa.
3. ballast pump according to claim 2, it is characterized in that: the cracking pressure of described the second back pressure valve is set to 50KPa; The cracking pressure of described the 4th back pressure valve is set to 50KPa.
4. according to claim 1 to the described ballast pump of 3 any one, it is characterized in that: described the first joint, described the second joint, described the 3rd joint are identical with the specification of described the 4th joint.
5. ballast pump according to claim 4 is characterized in that:
In described the first one-way valve, described the second one-way valve, described the 3rd one-way valve, described the 4th one-way valve at least one adopts the lifting and pulling type one-way valve;
Described lifting and pulling type one-way valve is provided with valve pocket and Elastic valve core, described Elastic valve core is provided with fastener, described Elastic valve core be assemblied in described valve pocket and described fastener be assemblied in described valve pocket an end so that described Elastic valve core can elastic telescopic to separate with described valve pocket or to fit.
6. ballast pump according to claim 5 is characterized in that:
Described valve pocket is set to beveled structure, and described valve pocket comprises tube, umbrella flank and annular plate surface;
Described umbrella flank is made of plural rib, has the space between adjacent two ribs, and described rib is umbrella to be arranged, and an end of every root bone is fixedly connected with described annular plate surface, and the other end of every root bone is fixedly connected with described tube;
Described Elastic valve core also is provided with cylindrical portion, taper section and snap ring, and described cylindrical portion one end is fixedly connected with the small end of described taper section, and the described cylindrical portion the other end is fixedly connected with described fastener, and the large end of described taper section is fixedly connected with described snap ring;
Described cylindrical portion is assemblied in described tube and described fastener is assemblied in described tube one end, and described taper section is assemblied in described umbrella flank, and described snap ring is assemblied in described annular plate surface.
7. ballast pump according to claim 6, it is characterized in that: described annular plate surface is provided with the circular groove that is complementary with described snap ring, and described snap ring is assemblied in described circular groove.
8. ballast pump according to claim 7, it is characterized in that: described fastener is set to cone structure, and the diameter of described fastener is greater than the external diameter of described cylindrical portion.
9. ballast pump according to claim 8, it is characterized in that: the diameter of described fastener is greater than the external diameter 3-6mm of described cylindrical portion.
10. ballast pump according to claim 1, it is characterized in that: also be provided with drive motor and transmission device, the described pump housing also is provided with Ceramic piston, the assembling of described Ceramic piston gap also is movably set in described pump chamber, described Ceramic piston is connected with described transmission device one end, and the described transmission device the other end is connected with the motor shaft of described motor;
Described transmission device is set to eccentric shaft, and described Ceramic piston is provided with groove, is equipped with slide block in the described groove, and described eccentric shaft one end is connected with described slide block, and the described eccentric shaft the other end is connected with described motor shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220540871 CN202914302U (en) | 2012-10-22 | 2012-10-22 | Balance pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220540871 CN202914302U (en) | 2012-10-22 | 2012-10-22 | Balance pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202914302U true CN202914302U (en) | 2013-05-01 |
Family
ID=48162621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220540871 Withdrawn - After Issue CN202914302U (en) | 2012-10-22 | 2012-10-22 | Balance pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202914302U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900664A (en) * | 2012-10-22 | 2013-01-30 | 贝恩医疗设备(广州)有限公司 | Balance pump |
-
2012
- 2012-10-22 CN CN 201220540871 patent/CN202914302U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900664A (en) * | 2012-10-22 | 2013-01-30 | 贝恩医疗设备(广州)有限公司 | Balance pump |
| CN102900664B (en) * | 2012-10-22 | 2015-11-18 | 贝恩医疗设备(广州)有限公司 | A kind of ballast pump |
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