CN108252890B - Transmission structure for single-plunger double-head booster pump - Google Patents
Transmission structure for single-plunger double-head booster pump Download PDFInfo
- Publication number
- CN108252890B CN108252890B CN201810215613.5A CN201810215613A CN108252890B CN 108252890 B CN108252890 B CN 108252890B CN 201810215613 A CN201810215613 A CN 201810215613A CN 108252890 B CN108252890 B CN 108252890B
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- Prior art keywords
- plunger
- eccentric shaft
- motor
- bearing
- shaft
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 54
- 230000033001 locomotion Effects 0.000 claims abstract description 13
- 230000003044 adaptive effect Effects 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 2
- 239000010687 lubricating oil Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention provides a transmission structure for a single-plunger double-head booster pump, and relates to the technical field of reciprocating booster pumps. The motor comprises a motor body, a motor shaft, an eccentric shaft and a plunger, wherein the plunger is arranged in a pump shell, the plunger is vertically arranged with the eccentric shaft, and the plunger is provided with a U-shaped groove; the eccentric shaft is provided with a first end and a second end, the first end of the eccentric shaft is in interference connection with the motor shaft, and the second end of the eccentric shaft is in adaptive connection with the U-shaped groove through a bearing, so that the plunger is suspended on the bearing; a fixing frame is fixedly connected between the pump shell and the motor body, the eccentric shaft is arranged on the fixing frame through a bearing support, and the axis of the bearing support is consistent with the axis of the motor shaft. The transmission structure for the single plunger double-head booster pump provided by the invention has the advantages that the single movement of the plunger can realize simultaneous actions of the water inlet valve and the water outlet valve, the volume is small, the structural strength is good, an intermediate transmission mechanism is not needed, the efficiency is high, the vibration is small, and the structure is suitable for manual holding operation.
Description
Technical Field
The invention relates to the technical field of reciprocating booster pumps, in particular to a transmission structure for a single-plunger double-head booster pump.
Background
The traditional reciprocating pump has main transmission modes of a crankshaft, a connecting rod structure, a crankshaft, a bearing bush and a return ring structure, and an eccentric shaft, a bearing bush and a return spring structure. The pump in the first structural form has large occupied space, complex structure, large pulse and high noise; the second type of pump structure is more compact than the former, but the abrasion is serious in the running process, and the pump body is easy to generate heat; the third structural form is elastic reset, so that the elastic performance is reduced due to the limitation of the rigidity of the spring, and the transmission shaft for driving the plunger is rigid, so that the problem of the matching of the transmission shaft and the spring exists, and the performance of the pump is affected.
Disclosure of Invention
An object of the present invention is to provide a transmission structure for a single plunger double head booster pump that solves the above-mentioned drawbacks or shortcomings, so as to reduce the volume of the product and improve the transmission efficiency.
In particular, the invention provides a transmission structure for a single-plunger double-head booster pump, which comprises a motor body, a motor shaft, an eccentric shaft and a plunger, wherein the plunger is arranged in a pump shell, the plunger is vertically arranged with the eccentric shaft, and the plunger is provided with a U-shaped groove; the eccentric shaft is provided with a first end and a second end, the first end of the eccentric shaft is in interference connection with the motor shaft, and the second end of the eccentric shaft is in adaptive connection with the U-shaped groove through a bearing, so that the plunger is suspended on the bearing; the motor is characterized in that a fixing frame is fixedly connected between the pump shell and the motor body, the eccentric shaft is installed on the fixing frame through a bearing support, and the axis of the bearing support is consistent with the axis of the motor shaft.
Optionally, the fixing frame comprises a positioning skirt edge, a positioning supporting hole, a mounting hole and a clamping structure; the mounting holes are used for fixedly connecting the fixing frame and the motor body through bolts, and the positioning skirt edge is matched with the motor body in size, so that the positioning skirt edge is sleeved on the motor body in a fitting way; the positioning support hole is provided with a bearing support for positioning and supporting the eccentric shaft, and the axis of the positioning support hole is consistent with the axis of the motor shaft and the axis of the eccentric shaft; the clamping structure is used for clamping and fixing the fixing frame and the pump shell.
Optionally, a limiting protrusion for limiting the bearing support of the eccentric shaft to move is arranged on one side, close to the plunger, of the positioning support hole.
Optionally, the motor body further comprises a rear end cover, and the motor shaft is mounted on the rear end cover through a bearing support.
Optionally, the first end of the eccentric shaft is provided with a convex edge, and the second end of the eccentric shaft is provided with an exhaust hole.
Optionally, the U-shaped groove is provided at a central position of the plunger.
Optionally, the length of the U-shaped groove is the same as the outer diameter of the bearing, so that the plunger is suspended on the eccentric shaft.
Optionally, the plunger has a space on both sides of the U-shaped groove in the width direction, respectively, so that a part of the bearing can enter the space when the eccentric shaft rotates.
Optionally, pressurizing cavities are respectively arranged at two ends of the plunger, so that the two pressurizing cavities can respectively realize liquid suction or liquid discharge alternately in one reciprocating motion of the plunger.
Optionally, sealing rings are respectively arranged at positions between two ends of the plunger and the U-shaped groove, so that the plunger is sealed with a pump shell of the booster pump.
The invention provides a transmission structure for a single-plunger double-head booster pump, wherein a motor is provided with an eccentric shaft, the eccentric shaft is in interference connection with a motor shaft, and the eccentric shaft and the motor shaft are supported on a rear end cover of the motor by adopting two bearings. The middle of the plunger is provided with a U-shaped groove. The eccentric shaft is directly connected with the plunger through the bearing, so that the bearing strength is high, intermediate transmission is avoided, the transmission efficiency is high, and the vibration is small.
The transmission structure for the single-plunger double-head booster pump is characterized in that a motor and a pump body are connected together through a fixing frame, an eccentric shaft is supported and positioned through a bearing arranged in a positioning supporting hole, the fixing frame is positioned through a positioning skirt edge which is sleeved on a motor body in a fitting mode, so that the axis of the positioning supporting hole is consistent with the axis of a motor shaft and the axis of the eccentric shaft, and when the motor runs, the transmission structure (namely the motor shaft, the eccentric shaft and the like) is well supported and positioned so as to prevent the motor shaft, the eccentric shaft and the like from generating unnecessary vibration, and therefore, the vibration of machines and tools of the booster pump can be obviously reduced.
The transmission mechanism provided by the invention enables the plunger to suspend on the eccentric shaft, and liquid suction and liquid discharge are realized simultaneously in one movement of the plunger. The product is small in size, symmetrical in structure, and the eccentric shaft is balanced in stress and small in vibration. The booster pump adopting the transmission mechanism has the advantages of high comfort and low cost.
The above, as well as additional objectives, advantages, and features of the present invention will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present invention when read in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:
FIG. 1 is a schematic structural view of a transmission structure according to one embodiment of the present invention;
FIG. 2 is a schematic view in partial section of the transmission structure shown in FIG. 1;
FIG. 3 is a schematic longitudinal section of the transmission structure of FIG. 1;
fig. 4 is a schematic structural view of a fixing frame of the transmission structure shown in fig. 1.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
FIG. 1 is a schematic structural view of a transmission structure according to one embodiment of the present invention; FIG. 2 is a schematic view in partial section of the transmission structure shown in FIG. 1; fig. 3 is a schematic longitudinal section of the transmission structure shown in fig. 1. Fig. 4 is a schematic structural view of a fixing frame of the transmission structure shown in fig. 1. The following is a detailed description with reference to fig. 1 to 4. The transmission structure for a single plunger double-head booster pump provided by the invention can generally comprise a motor body 11, a motor shaft 12, an eccentric shaft 13 and a plunger 2. The plunger 2 is arranged within a pump housing 9. The plunger 2 is arranged perpendicular to the eccentric shaft 13, and the plunger 2 is provided with a U-shaped groove 21. The eccentric shaft 13 has a first end 131 and a second end 132, the first end 131 of the eccentric shaft 13 being in interference connection with the motor shaft 12. The second end 132 of the eccentric shaft 13 is connected with the U-shaped groove 21 in a matching way through the bearing 3, so that the plunger 2 is suspended on the bearing 3, that is, the size of the bearing 3 is the same as or similar to the size of the U-shaped groove 21, so that the U-shaped groove 21 of the plunger 2 is tightly attached to the bearing 3, and the weight of the plunger 2 is supported by the bearing 3. A fixing frame 15 is fixedly connected between the pump shell 9 and the motor body 11. The eccentric shaft 13 is mounted on the fixed frame 15 through a second bearing support 142, the axis of the second bearing support 142 being coincident with the axis of the motor shaft 12 and the axis of the eccentric shaft 13. Through directly connecting eccentric shaft 13 with motor shaft 12 for there is not intermediate drive, its compact structure, transmission efficiency is high, has still reduced the pump body calorific capacity. The fixed frame 15 is fixedly connected between the pump shell 9 and the motor body 11, and the eccentric shaft 13 is arranged on the fixed frame 15 through the second bearing support 142, so that the vibration of the booster pump 1 is small, the noise is low, the comfort of a product is improved, and the cost is reduced.
Specifically, the first end 131 of the eccentric shaft 13 has a tubular structure, and the tubular structure of the first end 131 is sleeved on the motor shaft 12 in an interference connection manner. The second end 132 of the eccentric shaft 13 is coupled to the U-shaped groove 21 by means of the bearing 3. The U-shaped groove 21 is arranged at the center of the plunger 2, so that the structure of the U-shaped groove is symmetrical, and the moving distance of the plunger to two ends is the same in the process of reciprocating motion of the plunger 2, so that the eccentric shaft 13 is stressed uniformly, and the vibration is small. The length of the U-shaped groove 21 (i.e. the distance of the U-shaped groove 21 in the length direction of the plunger) is the same as the outer diameter of the bearing 3, so that the plunger 2 can be suspended on the eccentric shaft 13. At the same time, sealing rings 8 are respectively arranged at positions between the two ends of the plunger 2 and the U-shaped groove 21, so that the plunger 2 is sealed with a pump shell 9 of the booster pump. The seal ring 8 may be a seal structure known to those skilled in the art, such as an oil seal, a piston ring, or the like, as long as a seal structure that does not affect the reciprocating movement of the plunger 2 can be realized. The pressurizing cavities 6 and 7 are respectively arranged at the contact positions of the two ends of the plunger 2 and the pump shell 9 of the booster pump, so that the two pressurizing cavities 6 (7) respectively realize the functions of liquid suction/liquid discharge or liquid discharge/liquid suction in one reciprocating motion of the plunger 2. The two pressurizing cavities 6 (7) work alternately at the same time in one reciprocating motion of the plunger 2, so that pressure fluctuation generated by liquid is small, the liquid outlet pressure is stable, the pulse is small, and the tool vibration of the pressurizing pump is reduced. The single movement of the plunger 2 can realize the simultaneous action of the water inlet valve and the water outlet valve.
As shown in fig. 4, a separate structure of the fixing frame 15 is schematically shown. The fixing frame 15 includes a positioning skirt 151, a positioning support hole 152, a mounting hole 153, and a clamping structure 154. The mounting hole 153 is used for fixing the frame 15 and the motor body 11 through a bolt fixed connection. The positioning skirt 151 is adapted to the size of the motor body 11, so that the positioning skirt 151 is fit and sleeved on the motor body 11. The positioning support hole 152 is installed to position the second bearing support 142 for supporting the eccentric shaft 13. The axis of the positioning support hole 152 coincides with the axis of the motor shaft 12 and the axis of the eccentric shaft 13. The clamping structure 154 is used for clamping and fixing the fixing frame 15 and the pump shell 9. It is noted that the transmission structure for the single plunger double-head booster pump provided by the invention is characterized in that the motor and the pump body are connected together through the fixing frame 15, the eccentric shaft 13 is positioned and supported through the second bearing support 142 arranged in the positioning support hole 152, and the fixing frame 15 is positioned through the positioning skirt edge 151 which is fit and sleeved on the motor body 11, so that the axis of the positioning support hole 152 is consistent with the axis of the motor shaft 12 and the axis of the eccentric shaft 13, and when the motor 1 runs, the transmission structure (namely the motor shaft 12, the eccentric shaft 13 and the like) is well supported and positioned, so that unnecessary vibration of the motor shaft 12, the eccentric shaft 13 and the like is prevented, and the vibration of the booster pump can be obviously reduced. In other words, the mounting hole 153 only serves to connect the fixing frame 15 with the motor body 11 when fixedly connected by a bolt, and serves as a main positioning support for the positioning skirt 151 and the positioning support hole 152.
Further, a plurality of hollowed holes may be formed on the positioning skirt 151. The hollowed-out holes can enable air to flow inside and outside the fixing frame 15, so that heat dissipation is facilitated, and the weight of the fixing frame 15 can be reduced, so that the air conditioner is convenient to be applied to miniaturization and handheld design of the booster pump.
Further, a side of the positioning support hole 152 near the plunger 2 is provided with a limit projection 155 that limits the movement of the second bearing support 142 of the eccentric shaft 13. After the fixing frame 15 is mounted, the first end 131 of the eccentric shaft 13 and the second bearing support 142 can be limited to the inner side of the fixing frame 15, and the eccentric shaft 13 or the second bearing support 142 can be prevented from moving along the axial direction. For the same purpose, the eccentric shaft 13 is provided with a collar at the first end 131. The diameter of the flange is greater than the diameter near the first end 131, so that after the second bearing support 142 is sleeved on the eccentric shaft 13, the eccentric shaft 13 does not slide out of the second bearing support 142 due to the limitation of the flange.
The invention provides a transmission structure for a single-plunger double-head booster pump, and the motor 1 of the transmission structure also comprises a rear end cover 14. The eccentric shaft 13 may be provided inside or outside the rear end cap 14. The eccentric shaft 13 is also provided with an exhaust hole 133 to facilitate the installation of the eccentric shaft 13 when the eccentric shaft 13 is sleeved on the motor shaft 12.
In a specific embodiment, the first end 131 of the eccentric shaft 13 is arranged inside the rear end cover 14, and the middle part of the eccentric shaft 13 is supported and mounted on the rear end cover 14 through a bearing, so that the second end 132 of the eccentric shaft 13 extends out of the motor 1 and is then connected with the U-shaped groove of the plunger 2 through the bearing 3. The structure of the booster pump does not contain an intermediate transmission mechanism, so that the booster pump is compact in structure, small in occupied space and convenient to apply to a handheld booster pump.
In another specific embodiment, the eccentric shaft 13 is arranged outside the rear end cap 14. Specifically, the motor shaft 12 is mounted at the center of the rear end cover 14 through a first bearing support 141 and protrudes out of the rear end cover 14. The first end 131 of the eccentric shaft 13 is sleeved on the motor shaft 12, and the rear end cover 14 is fixedly connected with a fixing frame 142. The middle part of the eccentric shaft 13 is mounted directly or through the second bearing support 142 at the center of the fixed frame 142 such that the axis of the second bearing support 142 coincides with the axis of the motor shaft 12. The design of the second bearing support 142 and the first bearing support 141 makes the assembly structure of the motor shaft 12 or the eccentric shaft 13 stronger, has no intermediate transmission, has small vibration, and improves the comfort of the product.
As shown in fig. 3, a space 4 and a space 5 are reserved on two sides of the plunger 2 in the width direction of the U-shaped groove 21 (i.e. the distance in the direction perpendicular to the length direction of the plunger) respectively, so that when the eccentric shaft 13 rotates, part of the bearing 3 can enter the space 4 (5), and therefore, the reciprocating movement requirement can be met only by arranging a smaller size of the U-shaped groove 21 on the plunger 2.
The present invention provides a transmission structure for a single plunger double head booster pump, which is designed such that the fixing frame 15 of the transmission structure can be communicated with the outside, and only a grease-like grease is required to be smeared at several bearings or contact positions supported by the bearings, unlike the prior art that the output shaft or the transmission shaft of the motor is disposed in a sealed space completely filled with lubricating oil. Thus, the problems of lubricating oil leakage and the like which are easily caused by the sealed structure completely filled with lubricating oil in the prior art can be avoided.
The invention provides a transmission structure for a single-plunger double-head booster pump, wherein a motor is provided with an eccentric shaft, the eccentric shaft is in interference connection with a motor shaft, and the eccentric shaft and the motor shaft are supported on a rear end cover of the motor by adopting two bearings. The middle of the plunger is provided with a U-shaped groove. The eccentric shaft is directly connected with the plunger through the bearing, so that the bearing strength is high, intermediate transmission is avoided, the transmission efficiency is high, and the vibration is small. The transmission mechanism provided by the invention enables the plunger to suspend on the eccentric shaft, and liquid suction and liquid discharge are realized simultaneously in one movement of the plunger.
The transmission structure for the single plunger double-head booster pump provided by the invention has the advantages that the plungers and the motor shaft are symmetrically and vertically arranged, so that the balanced stress of the transmission shaft is ensured, and the vibration is small.
The transmission structure for the single-plunger double-head booster pump provided by the invention has the advantages of compact structure, good strength and light weight, and is suitable for a whole machine for manual holding operation.
The transmission structure for the single-plunger double-head booster pump is in interference fit connection with the motor shaft through the eccentric shaft, and meanwhile, the assembled motor shaft is supported on the rear end cover of the motor by adopting two bearings, so that the structure is compact and the supporting strength is high.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described herein in detail, many other variations or modifications of the invention consistent with the principles of the invention may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.
Claims (8)
1. The transmission structure for the single-plunger double-head booster pump comprises a motor body, a motor shaft, an eccentric shaft and a plunger, wherein the plunger is arranged in a pump shell; the eccentric shaft is provided with a first end and a second end, the first end of the eccentric shaft is in interference connection with the motor shaft, and the second end of the eccentric shaft is in adaptive connection with the U-shaped groove through a bearing, so that the plunger is suspended on the bearing; a fixed frame is fixedly connected between the pump shell and the motor body, the eccentric shaft is installed on the fixed frame through a second bearing support, and the axis of the second bearing support is consistent with the axis of the motor shaft; the motor body further comprises a rear end cover, and the motor shaft is supported and mounted on the rear end cover through a first bearing; the fixing frame comprises a positioning skirt edge, a positioning supporting hole, a mounting hole and a clamping structure; the positioning support hole is provided with a second bearing support for positioning and supporting the eccentric shaft, and the axis of the positioning support hole is consistent with the axis of the motor shaft and the axis of the eccentric shaft; the first bearing support is positioned at one side of the rear end cover, which is close to the motor body, and the second bearing support is positioned at one side of the rear end cover, which is far away from the motor body; the second bearing support is sleeved on the first end of the eccentric shaft, a convex edge is arranged at the first end of the eccentric shaft, and the convex edge limits the second bearing support to move towards one side of the motor body along the axial direction of the motor shaft;
the mounting holes are used for fixedly connecting the fixing frame and the motor body through bolts, and the positioning skirt edge is matched with the motor body in size, so that the positioning skirt edge is sleeved on the motor body in a fitting way; the clamping structure is used for clamping and fixing the fixing frame and the pump shell.
2. The transmission structure according to claim 1, wherein a side of the positioning support hole near the plunger is provided with a limit projection that limits movement of the second bearing support of the eccentric shaft.
3. The transmission structure of claim 1, wherein the second end of the eccentric shaft is provided with a vent hole.
4. The transmission structure of claim 1, wherein the U-shaped groove is provided at a central position of the plunger.
5. The transmission structure of claim 1, wherein the U-shaped groove has the same length as an outer diameter of the bearing so that the plunger is suspended on the eccentric shaft.
6. The transmission structure according to claim 4, wherein the plungers have a space on both sides in a width direction of the U-shaped groove, respectively, so that a part of the bearing can enter into the space when the eccentric shaft rotates.
7. The transmission structure according to claim 1, wherein pressurizing cavities are respectively arranged at two ends of the plunger, so that the two pressurizing cavities can respectively realize liquid suction or liquid discharge alternately in one reciprocating motion of the plunger.
8. The transmission structure according to claim 1, wherein sealing rings are respectively arranged at positions between both ends of the plunger and the U-shaped groove, so that the plunger is sealed with a pump shell of the booster pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810215613.5A CN108252890B (en) | 2018-03-15 | 2018-03-15 | Transmission structure for single-plunger double-head booster pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810215613.5A CN108252890B (en) | 2018-03-15 | 2018-03-15 | Transmission structure for single-plunger double-head booster pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108252890A CN108252890A (en) | 2018-07-06 |
| CN108252890B true CN108252890B (en) | 2024-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810215613.5A Active CN108252890B (en) | 2018-03-15 | 2018-03-15 | Transmission structure for single-plunger double-head booster pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108252890B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2385108Y (en) * | 1999-07-22 | 2000-06-28 | 路久生 | Motor-pump direct linking horizontal centrifugal pump |
| CN200964928Y (en) * | 2006-11-03 | 2007-10-24 | 罗邦琴 | Double cylinder plunger pump |
| CN102116300A (en) * | 2010-12-30 | 2011-07-06 | 上海阿波罗机械股份有限公司 | Back-flushing pump of circulating water filtering system for nuclear power station |
| CN104675689A (en) * | 2015-01-24 | 2015-06-03 | 湖州南丰机械制造有限公司 | Connecting support for connecting motor and pump body |
| JP3206831U (en) * | 2016-07-26 | 2016-10-06 | 廈門坤錦電子科技有限公司 | Ultra-compact pump that can control the flow rate with high accuracy |
| CN106401893A (en) * | 2016-11-09 | 2017-02-15 | 中国航空工业集团公司北京长城航空测控技术研究所 | Minitype oil detection metering pump |
| CN206681967U (en) * | 2017-03-20 | 2017-11-28 | 宁波菲利特水处理科技有限公司 | A kind of pump case component of booster pump |
| CN208380770U (en) * | 2018-03-15 | 2019-01-15 | 苏州金莱克精密机械有限公司 | A kind of drive mechanism for single plunger double end booster pump |
-
2018
- 2018-03-15 CN CN201810215613.5A patent/CN108252890B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2385108Y (en) * | 1999-07-22 | 2000-06-28 | 路久生 | Motor-pump direct linking horizontal centrifugal pump |
| CN200964928Y (en) * | 2006-11-03 | 2007-10-24 | 罗邦琴 | Double cylinder plunger pump |
| CN102116300A (en) * | 2010-12-30 | 2011-07-06 | 上海阿波罗机械股份有限公司 | Back-flushing pump of circulating water filtering system for nuclear power station |
| CN104675689A (en) * | 2015-01-24 | 2015-06-03 | 湖州南丰机械制造有限公司 | Connecting support for connecting motor and pump body |
| JP3206831U (en) * | 2016-07-26 | 2016-10-06 | 廈門坤錦電子科技有限公司 | Ultra-compact pump that can control the flow rate with high accuracy |
| CN106401893A (en) * | 2016-11-09 | 2017-02-15 | 中国航空工业集团公司北京长城航空测控技术研究所 | Minitype oil detection metering pump |
| CN206681967U (en) * | 2017-03-20 | 2017-11-28 | 宁波菲利特水处理科技有限公司 | A kind of pump case component of booster pump |
| CN208380770U (en) * | 2018-03-15 | 2019-01-15 | 苏州金莱克精密机械有限公司 | A kind of drive mechanism for single plunger double end booster pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108252890A (en) | 2018-07-06 |
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