CN205277832U - Resistant impeller pump that changes futilely of long -life - Google Patents
Resistant impeller pump that changes futilely of long -life Download PDFInfo
- Publication number
- CN205277832U CN205277832U CN201620022889.8U CN201620022889U CN205277832U CN 205277832 U CN205277832 U CN 205277832U CN 201620022889 U CN201620022889 U CN 201620022889U CN 205277832 U CN205277832 U CN 205277832U
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- resisting plate
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- plate
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Abstract
The utility model discloses a resistant impeller pump that changes futilely of long -life, including the pump body and pump cover, establish two rotors in the pump body, two rotors are respectively through last pivot and infraduction spindle drive, the fuel tank cap is established to pump body rear end, the formation oil pocket is foldd to the pump body and fuel tank cap, establish the back antifriction plate in the pump body, establish preceding antifriction plate in the pump cover, establish first cavity in preceding antifriction plate and the back antifriction plate, establish the oil feed runner in the first cavity of preceding antifriction plate and go out the oil stream way, the runner produces oil in establishing in the first cavity of back antifriction plate, antifriction plate and lower wear -proof plate are established to the hoop inner wall of the pump body, go up the second cavity intercommunication of antifriction plate and go up the feed liquor hole, lower wear -proof plate's second cavity intercommunication lower liquid inlet, upward establish the passageway in the pivot, passageway intercommunication oil pocket and two first cavitys. The utility model discloses a resistant impeller pump that changes futilely of long -life has overcome traditional impeller pump, and to strictly forbid to take off the technical board of liquid idle running sex -limited, and life prolongs by a wide margin, and operative employee's intensity of labour can alleviate.
Description
Technical field
The utility model relates to rotor pump technical field, especially relates to a kind of long lifetime and resistance to dry turns rotor pump.
Background technology
Rotor pump is also known as colloid pump, lobe pump, three blade pump, general-purpose transferpump etc., and rotor pump belongs to volumetric pump. it is that the periodicity by means of the multiple fixed volume convey unit in working chamber is converted and reaches the object of conveyance fluid. rotor is that pump is used for the key part of conveyance fluid, rotor rotates and the pump housing and pump cover frictional heat, the full dynamic fluid by rotor conveying takes away these heats, once fluid by draining or does not connect, if operative employee does not realize, shut down not in time, have more than is needed several minutes, heat is taken away owing to having lacked fluxion, tightness system, a lot of part such as rotor all can be burnt out by the heat of friction accumulation, pump must keep in repair or change, this kind of phenomenon especially bothers in the chemical plant that can not be interrupted, operative employee needs the aspiration phases of moment monitoring pump, connect lavatory and all to be had relief rotation, very inconvenient, it is badly in need of improving.
Practical novel content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, a kind of long lifetime is provided resistance to dry to turn rotor pump, overcome the technical limitation that conventional rotors pump forbids de-liquid air to turn, work-ing life significantly extends, and the labour intensity of operative employee is alleviated, make user under the equal prerequisite dropped into, ensure that the stability of production, reduce the continuous input of pump class and the turnover rate of equipment.
For achieving the above object, the technical solution of the utility model is: the long lifetime is resistance to dry turns rotor pump, comprise the pump housing and pump cover that are connected by fastening piece, two rotors coordinating distribution up and down it are provided with in the described pump housing, two rotors are driven by upper rotating shaft and lower rotary shaft respectively, described pump housing both sides are respectively equipped with opening for feed and discharge port, described pump housing rear end is provided with fuel tank cap, the pump housing and fuel tank cap close up the oily chamber forming built-in lubricating oil, pump body rear end is provided with the rear wear-resisting plate of the 8-shaped supporting with its inwall, wear-resisting plate before the 8-shaped supporting with its inwall it is provided with in described pump cover, the inside of described front wear-resisting plate and rear wear-resisting plate is equipped with the first cavity, front wear-resisting plate and rear wear-resisting plate are all formed antetheca and Hou Bi by described first cavity, the thickness of antetheca and rear wall is equal, the ratio of the thickness of antetheca and the thickness of the first cavity is 2:3��1:1, it is provided with multiple first pillar stiffener near the edge of front wear-resisting plate and rear wear-resisting plate in described first cavity, the center, top and the bottom being positioned at front wear-resisting plate in described first cavity is equipped with the first pillar stiffener, described first pillar stiffener two ends connect the front and rear wall of front wear-resisting plate and the front and rear wall of rear wear-resisting plate respectively, described front wear-resisting plate and rear wear-resisting plate are equipped with the through hole run through, described through hole is through the center of the first pillar stiffener, wearing the first screw in through hole is separately fixed on pump cover and the pump housing by front wear-resisting plate and rear wear-resisting plate, what be arranged with the rear wall that runs through front wear-resisting plate and the first corresponding pillar stiffener outside first screw at the central upper portion place of described front wear-resisting plate enters oil runner, described enter oil runner outlet be positioned on the outer wall of the first corresponding pillar stiffener, first cavity top of described front wear-resisting plate is provided with the outer fuel-displaced runner running through pump cover, described outer fuel-displaced runner is connected the first cavity of front wear-resisting plate, after described, the first cavity upper back of wear-resisting plate is provided with the interior fuel-displaced runner running through wall after pump housing Hou Bi and rear wear-resisting plate, described interior fuel-displaced runner is connected the first cavity of rear wear-resisting plate, the ring inward wall of the described pump housing is provided with the upper wear-resisting plate of arc symmetrical up and down and lower wear-resisting plate, the inside of described wear-resisting plate and lower wear-resisting plate is provided with the 2nd cavity, upper wear-resisting plate and lower wear-resisting plate are all formed Shang Bi and Xia Bi by described 2nd cavity, the thickness of Shang Bi and lower wall is equal, the ratio of the thickness of upper wall and the thickness of the 2nd cavity is 2:3��1:1, the 2nd pillar stiffener of the wall up and down of the wall up and down being connected to wear-resisting plate and lower wear-resisting plate it is provided with in described 2nd cavity, described wear-resisting plate and lower wear-resisting plate run through the 2nd screw being provided with and being fixed in pump housing inwall, described 2nd screw is through the center of the 2nd pillar stiffener, the upper end center of the lower wall of described wear-resisting plate is provided with the upper inlet opening being connected its 2nd cavity, the two ends of the upper wall of described lower wear-resisting plate are provided with the lower inlet opening being connected its 2nd cavity, it is provided with passage in described upper rotating shaft, described passage is provided with a feeder connection and two channel outlet, described feeder connection is positioned on the outer wall of the upper rotating shaft in oil chamber, a channel outlet is positioned on the outer wall of the upper rotating shaft of the first cavity of wear-resisting plate afterwards, another channel outlet is positioned at the end center of rotating shaft near front wear-resisting plate side, it is provided with oil pump in described oil chamber, described oil pump is provided with two oil inlet pipes and an oil outlet pipe, an oil inlet pipe passes in the first cavity that interior fuel-displaced runner stretches into rear wear-resisting plate, another oil inlet pipe is worn in the first cavity that outer fuel-displaced runner stretches into front wear-resisting plate from outside, two oil inlet pipes converge in oil chamber.
After described, the center, top and the bottom of wear-resisting plate is provided with and keeps supplying rotating shaft and axis hole that lower rotary shaft passes.
Upper rotating shaft on front side of described axis hole and sheathed lip seal circle on lower rotary shaft, described lip seal circle is provided with three sealing lips with the antetheca shrink-fit of rear wear-resisting plate.
Sheathed axle sleeve on the upper rotating shaft of side and lower rotary shaft after described axis hole, after described axle sleeve, ring established by side card, described dynamic ring rear end is to being connected to quiet ring, described quiet ring rear end is to being connected to spring, quiet ring and spring upper and lower sides are compressed by gland by side after sealing socket and pressing plate crimping, described sealing socket and pressing plate respectively.
Described fuel tank cap outer wall ring is to being provided with radiator element.
It is provided with rubber cushion between described front wear-resisting plate outer rim and pump cover inwall, after described, between wear-resisting plate outer rim and pump housing inwall, it is provided with rubber cushion.
The beneficial effects of the utility model are: the fluid that upper wear-resisting plate and lower wear-resisting plate can bring in the 2nd cavity store pump operation of self, the cooling performance to rotor periphery circumference is strengthened in short period of time when fluid is drained or do not connect, lubricating oil in oil chamber enters from feeder connection, flow in first cavity of rear wear-resisting plate of front wear-resisting plate sum respectively along passage from two channel outlet, the cooling performance of the both ends of the surface to rotor is strengthened when fluid is drained or do not connect, can accomplish rotor, the omnibearing protection of the pump housing and pump cover, the setting of oil pump strengthens the speed changed oil, improve cooling performance further.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the enlarged view at A place in Fig. 1;
Fig. 3 is the enlarged view at B place in Fig. 1;
Fig. 4 is the partial side view of the pump housing of the present utility model;
Fig. 5 is the enlarged view at C place in Fig. 4;
Fig. 6 is the partial side view of pump cover of the present utility model;
Fig. 7 is the side-view of rear wear-resisting plate of the present utility model.
In figure: the pump housing 1, opening for feed 11, discharge port 12, pump cover 2, rubber cushion 21, rotor 3, upper rotating shaft 4, lower rotary shaft 41, passage 42, feeder connection 43, channel outlet 44, lip seal circle 45, axle sleeve 46, dynamic ring 47, front wear-resisting plate 5, first cavity 51, first pillar stiffener 52, first screw 53, enter oil runner 54, outer fuel-displaced runner 55, rear wear-resisting plate 56, axis hole 57, interior fuel-displaced runner 58, fuel tank cap 6, oil chamber 61, radiator element 62, oil pump 63, upper wear-resisting plate 7, 2nd cavity 71, 2nd pillar stiffener 72, 2nd screw 73, upper inlet opening 74, lower wear-resisting plate 75, lower inlet opening 76, quiet ring 8, sealing socket 81, spring 82, pressing plate 83, gland 84.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
As shown in Fig. 1��Fig. 7, long lifetime is resistance to dry turns rotor pump, comprise the pump housing 1 and pump cover 2 that are connected by fastening piece, fastening piece is located at both peripheries, two rotors 3 coordinating distribution up and down it are provided with in the described pump housing 1, two rotors 3 are driven by upper rotating shaft 4 and lower rotary shaft 41 respectively, and upper rotating shaft 4 and lower rotary shaft 41 linkage make two rotors 3 coordinate rotation. The described pump housing 1 both sides are respectively equipped with opening for feed 11 and discharge port 12, are low pressure area near opening for feed 11 place, are high pressure area near discharge port 12 place.
The described pump housing 1 rear end is provided with fuel tank cap 6, the pump housing 1 and fuel tank cap 6 close up the oily chamber 61 forming built-in lubricating oil, lubricating oil can play the lubrication to upper rotating shaft 4 and lower rotary shaft 41, thermolysis can be played again simultaneously, the pump housing 1 Internal back end is provided with the rear wear-resisting plate 56 of the 8-shaped supporting with its inwall, wear-resisting plate 5 before being provided with the 8-shaped supporting with its inwall in described pump cover 2, it is provided with rubber cushion 21 between described front wear-resisting plate 5 outer rim and pump cover 2 inwall, it is provided with rubber cushion 21 between wear-resisting plate 56 outer rim and the pump housing 1 inwall after described, rubber cushion 21 can prevent the fluid being transferred from leaking from gap, the circumferential reactive force when end face of rotor 3 and front wear-resisting plate 5 or rear wear-resisting plate 56 rub can be cushioned again.
The inside of described front wear-resisting plate 5 and rear wear-resisting plate 56 is equipped with the first cavity 51, front wear-resisting plate 5 and rear wear-resisting plate 56 are all formed antetheca and Hou Bi by described first cavity 51, the thickness of antetheca and rear wall is equal, namely the first cavity 51 is positioned at mid-way, the ratio of the thickness of antetheca and the thickness of the first cavity 51 is 2:3��1:1, this thickness ratio makes the first cavity 51 of the present utility model can hold the more lubricating oil playing cooling effect, in turn ensure that front wear-resisting plate 5 and the structural strength of rear wear-resisting plate 56, it is unlikely in the friction process with rotor 3 end face and damages.
In described first cavity 51, the edge of close front wear-resisting plate 5 and rear wear-resisting plate 56 is provided with multiple first pillar stiffener 52, the center, top and the bottom being positioned at front wear-resisting plate 5 in described first cavity 51 is equipped with the first pillar stiffener 52, described first pillar stiffener 52 two ends connect the front and rear wall of front wear-resisting plate 5 and the front and rear wall of rear wear-resisting plate 56 respectively, multiple first pillar stiffener 52 distributes rationally, further enhances front wear-resisting plate 5 and the structural strength of rear wear-resisting plate 56.
Described front wear-resisting plate 5 and rear wear-resisting plate 56 are equipped with the through hole run through, described through hole is through the center of the first pillar stiffener 52, wearing the first screw 53 in through hole is separately fixed on pump cover 2 and the pump housing 1 by front wear-resisting plate 5 and rear wear-resisting plate 56, the i.e. quantity of through hole and the quantity of the first pillar stiffener 52 is equal and corresponding setting, through hole runs through antetheca, first pillar stiffener 52 and Hou Bi, the first screw 53 on front wear-resisting plate 5 is worn from its rear wall and the end of the first screw 53 is positioned at rear wall, namely rear wall is not exposed in the end of the first screw 53, the friction of front wear-resisting plate 5 and rotor 3 end can not be produced interference, the first screw 53 on rear wear-resisting plate 56 is worn from its antetheca and the end of the first screw 53 is positioned at antetheca, namely antetheca is not exposed in the end of the first screw 53, the friction of rear wear-resisting plate 56 and rotor 3 end can not be produced interference, first screw 53 runs through antetheca simultaneously, first pillar stiffener 52 and Hou Bi, good and even by power, make front wear-resisting plate 5 and rear wear-resisting plate 56 fixing reliable, do not take the space of the lubricating oil in the first cavity 51 simultaneously, the cooling area of lubricating oil reaches maximumization, first screw 53 is arranged in the first pillar stiffener 52, the leak point of lubricating oil can not be increased, ensure that the sealing effect of lubricating oil, lubricating oil can not be mixed with the fluid being transferred.
What be arranged with the rear wall that runs through front wear-resisting plate 5 and the first corresponding pillar stiffener 52 outside first screw 53 at the central upper portion place of described front wear-resisting plate 5 enters oil runner 54, described enter oil runner 54 outlet be positioned on the outer wall of the first corresponding pillar stiffener 52, namely the outlet entering oil runner 54 is positioned at the first cavity 51 of front wear-resisting plate 5, first cavity 51 top of described front wear-resisting plate 5 is provided with the outer fuel-displaced runner 55 running through pump cover 2, described outer fuel-displaced runner 55 is connected the first cavity 51 of front wear-resisting plate 5, and outer fuel-displaced runner 55 also penetrates the rubber cushion 21 of front wear-resisting plate 5 outer rim simultaneously.
After described, the first cavity 51 upper back of wear-resisting plate 56 is provided with the interior fuel-displaced runner 58 running through the pump housing 1 Hou Bi and the rear wall of rear wear-resisting plate 56, described interior fuel-displaced runner 58 is connected the first cavity 51 of rear wear-resisting plate 56, and after making, the first cavity 51 of wear-resisting plate 56 is connected with oil chamber 61 simultaneously.
The ring inward wall of the described pump housing 1 is provided with the upper wear-resisting plate 7 of arc symmetrical up and down and lower wear-resisting plate 75, the inside of described wear-resisting plate 7 and lower wear-resisting plate 75 is provided with the 2nd cavity 71, upper wear-resisting plate 7 and lower wear-resisting plate 75 are all formed Shang Bi and Xia Bi by described 2nd cavity 71, the thickness of Shang Bi and lower wall is equal, the ratio of the thickness of upper wall and the thickness of the 2nd cavity 71 is 2:3��1:1, this thickness ratio makes the 2nd cavity 71 of the present utility model can hold the more fluid being transferred, in turn ensure that wear-resisting plate 7 and the structural strength of lower wear-resisting plate 75, be unlikely with rotor 3 outer circumference to friction process in damage.
The 2nd pillar stiffener 72 of the wall up and down of the wall up and down being connected to wear-resisting plate 7 and lower wear-resisting plate 75 it is provided with in described 2nd cavity 71, upper wear-resisting plate 7 and the quantity of the 2nd pillar stiffener 72 of lower wear-resisting plate 75 in the utility model are circumferential 6 row, axially 3 row, totally 18, described wear-resisting plate 7 and lower wear-resisting plate 75 run through the 2nd screw 73 being provided with and being fixed in the pump housing 1 inwall, described 2nd screw 73 is through the center of the 2nd pillar stiffener 72, the i.e. quantity of the 2nd the screw 73 and quantity of the 2nd pillar stiffener 72 is equal and corresponding setting, the 2nd screw 73 on upper wear-resisting plate 7 wears from Qi Xiabi and the end of the 2nd screw 73 is positioned at lower wall, namely lower wall is not exposed in the end of the 2nd screw 73, can not to upper wear-resisting plate 7 and rotor 3 outer circumference to friction produce interference, the 2nd screw 73 on lower wear-resisting plate 75 from it wall wear and the end of the 2nd screw 73 is positioned at wall, namely wall is not exposed in the end of the 2nd screw 73, can not to lower wear-resisting plate 75 and rotor 3 outer circumference to friction produce interference, 2nd screw 73 runs through Shang Bi simultaneously, 2nd pillar stiffener 72 and Xia Bi, good and even by power, make wear-resisting plate 7 and lower wear-resisting plate 75 fixing reliable, do not take the space of the fluid in the 2nd cavity 71 simultaneously, the cooling area of fluid reaches maximumization, 2nd screw 73 is arranged in the 2nd pillar stiffener 72, the leakage point of the fluid being stored in the 2nd cavity 71 can not be increased, good seal performance.
The upper end center of the lower wall of described wear-resisting plate 7 is provided with the upper inlet opening 74 being connected its 2nd cavity 71, the two ends of the upper wall of described lower wear-resisting plate 75 are provided with the lower inlet opening 76 being connected its 2nd cavity 71, lower inlet opening 76 is positioned at the upper wall of lower wear-resisting plate 75 near apical position, downward inclination can be arranged to from outside to the 2nd cavity 71 with inlet opening 76 at present, fluid is facilitated to enter, fluid understand in the process carried by rotor 3 some from inlet opening 74 and lower inlet opening 76 enter respectively in the 2nd cavity 71 of wear-resisting plate 7 and lower wear-resisting plate 75 and store, because upper inlet opening 74 is positioned at position topmost, lower inlet opening 76 is positioned at the close apical position of lower wear-resisting plate 75, therefore the fluid being stored can not leak out from upper inlet opening 74 and lower inlet opening 76, can be strengthened in the short period of time when fluid drains or do not connect to rotor 3 outer circumference to cooling performance.
It is provided with passage 42 in described upper rotating shaft 4, described passage 42 is provided with a feeder connection 43 and two channel outlet 44, described feeder connection 43 is positioned on the outer wall of the upper rotating shaft 4 in oil chamber 61, namely feeder connection 43 is positioned at oil chamber 61, more specifically feeder connection 43 is submerged in lubricating oil, a channel outlet 44 is positioned on the outer wall of the upper rotating shaft 4 of the first cavity 51 of wear-resisting plate 56 afterwards, another channel outlet 44 is positioned at the end center of rotating shaft 4 near front wear-resisting plate 5 side, it is provided with oil pump 63 in described oil chamber 61, described oil pump 63 is provided with two oil inlet pipes and an oil outlet pipe, an oil inlet pipe passes in the first cavity 51 that interior fuel-displaced runner 58 stretches into rear wear-resisting plate 56, another oil inlet pipe is worn in the first cavity 51 that outer fuel-displaced runner 55 stretches into front wear-resisting plate 5 from outside, two oil inlet pipes converge in oil chamber 61, oil outlet pipe is positioned at oil chamber 61, described fuel tank cap 6 outer wall ring is to being provided with radiator element 62. lubricating oil in oil chamber 61 enters from feeder connection 43, a part enters in the first cavity 51 of rear wear-resisting plate 56 by the channel outlet 44 of centre, another part flows out from channel outlet 44 foremost in the first cavity 51 entering and directly entering front wear-resisting plate 5 after oil runner 54, make all to store a large amount of lubricating oil in the first cavity 51 of front wear-resisting plate 5 and rear wear-resisting plate 56, the cooling performance of the both ends of the surface to rotor 3 is strengthened when fluid is drained or do not connect, can accomplish rotor 3, the omnibearing protection of the pump housing 1 and pump cover 2, oil pump 63 can be arranged to interval and open, lubricating oil in first cavity 51 of front wear-resisting plate 5 and rear wear-resisting plate 56 is inhaled oil back chamber 61 by oil pump 63, pressure in first cavity 51 of front wear-resisting plate 5 and rear wear-resisting plate 56 is reduced, lubricating oil in oil chamber 61 continues to add in the first cavity 51 of front wear-resisting plate 5 and rear wear-resisting plate 56 from passage 42, lubricating oil can be dispelled the heat in the moment by radiator element 62, it is made to remain good cooling performance.
After described, the center, top and the bottom of wear-resisting plate 56 is provided with and keeps supplying rotating shaft 4 and axis hole 57 that lower rotary shaft 41 passes. Upper rotating shaft 4 on front side of described axis hole 57 and sheathed lip seal circle 45 on lower rotary shaft 41, described lip seal circle 45 is provided with three sealing lips with the antetheca shrink-fit of rear wear-resisting plate 56, the sealing lip of lip seal circle 45 is comparatively soft, and frictional force is little, good sealing effect.
Sheathed axle sleeve 46 on the upper rotating shaft 4 of side and lower rotary shaft 41 after described axis hole 57, after described axle sleeve 46, ring 47 established by side card, described dynamic ring 47 rear end is to being connected to quiet ring 8, described quiet ring 8 rear end is to being connected to spring 82, quiet ring 8 and spring 82 upper and lower sides are crimped by sealing socket 81 and pressing plate 83 respectively, sealing socket 81 and pressing plate 83 are linked together by fastening piece, described sealing socket 81 and the rear side of pressing plate 83 are compressed by gland 84, gland 84 is connected by fastening piece and the pump housing 1 aft end face after compressing, dynamic ring 47 rotates together with lower rotary shaft 41 along with upper rotating shaft 4 and moment and quiet ring 8 produce friction, quiet ring 8 is ejected, after consuming in friction, the sealing condition continuing to keep best by spring 82, friction between quiet ring 8 and dynamic ring 47 also can be played the effect of heat radiation by the lubricating oil in oil chamber 61, extend work-ing life.
The above; it is only the utility model preferably embodiment; but protection domain of the present utility model is not limited thereto; any it is familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.
Claims (6)
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2. the long lifetime resistance to dry turns rotor pump as claimed in claim 1, it is characterised in that: after described, the center, top and the bottom of wear-resisting plate (56) is provided with and keeps supplying rotating shaft (4) and axis hole (57) that lower rotary shaft (41) passes.
3. the long lifetime resistance to dry turns rotor pump as claimed in claim 2, it is characterized in that: the upper rotating shaft (4) of described axis hole (57) front side and the upper sheathed lip seal circle (45) of lower rotary shaft (41), described lip seal circle (45) is provided with three sealing lips with the antetheca shrink-fit of rear wear-resisting plate (56).
4. the long lifetime resistance to dry turns rotor pump as claimed in claim 3, it is characterized in that: described axis hole (57) is the upper rotating shaft (4) of side and the upper sheathed axle sleeve (46) of lower rotary shaft (41) afterwards, described axle sleeve (46) afterwards side card establish ring (47), described dynamic ring (47) rear end is to being connected to quiet ring (8), described quiet ring (8) rear end is to being connected to spring (82), quiet ring (8) and spring (82) upper and lower sides are respectively by sealing socket (81) and pressing plate (83) crimping, described sealing socket (81) and pressing plate (83) are compressed by gland (84) side afterwards.
5. the long lifetime resistance to dry turns rotor pump as claimed in claim 1, it is characterised in that: described fuel tank cap (6) outer wall ring is to being provided with radiator element (62).
6. the long lifetime resistance to dry turns rotor pump as claimed in claim 1, it is characterized in that: between described front wear-resisting plate (5) outer rim and pump cover (2) inwall, be provided with rubber cushion (21), after described, between wear-resisting plate (56) outer rim and the pump housing (1) inwall, it is provided with rubber cushion (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620022889.8U CN205277832U (en) | 2016-01-12 | 2016-01-12 | Resistant impeller pump that changes futilely of long -life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620022889.8U CN205277832U (en) | 2016-01-12 | 2016-01-12 | Resistant impeller pump that changes futilely of long -life |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205277832U true CN205277832U (en) | 2016-06-01 |
Family
ID=56062412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620022889.8U Withdrawn - After Issue CN205277832U (en) | 2016-01-12 | 2016-01-12 | Resistant impeller pump that changes futilely of long -life |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205277832U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464991A (en) * | 2016-01-12 | 2016-04-06 | 绍兴文理学院 | Long-life dry-running-resistant rotor pump |
-
2016
- 2016-01-12 CN CN201620022889.8U patent/CN205277832U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464991A (en) * | 2016-01-12 | 2016-04-06 | 绍兴文理学院 | Long-life dry-running-resistant rotor pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160601 Effective date of abandoning: 20170801 |