CN111207053A - Reversing oil conveying mechanism - Google Patents
Reversing oil conveying mechanism Download PDFInfo
- Publication number
- CN111207053A CN111207053A CN202010161177.5A CN202010161177A CN111207053A CN 111207053 A CN111207053 A CN 111207053A CN 202010161177 A CN202010161177 A CN 202010161177A CN 111207053 A CN111207053 A CN 111207053A
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- Prior art keywords
- oil
- pipe
- reversing
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Classifications
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- 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
- F04B17/06—Mobile combinations
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- 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
- F04B23/00—Pumping installations or systems
- F04B23/02—Pumping installations or systems having reservoirs
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- 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
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
- F04B49/225—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves with throttling valves or valves varying the pump inlet opening or the outlet opening
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- 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
- F04B53/10—Valves; Arrangement of valves
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- 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
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
本发明涉及输油设备的技术领域，公开了换向输油机构，包括：第一外接油管、第二外接油管；油泵，所述油泵连接有进油管和出油管；换向装置，所述第一外接油管通过所述换向装置连通至所述进油管或所述出油管，所述第二外接油管通过所述换向装置连通至所述进油管或所述出油管，所述换向装置包括用于切换所述第一外接油管、所述第二外接油管连接状态的切换结构。本发明中的换向输油机构通过内部切换油管连接状态实现即可实现输油和抽油，无需两套设备，不仅节省了设备成本、缩小了占用的空间体积，而且只需要一次油管和目标物对接，期间无需二次拆装油管，降低了漏油的可能性。
The invention relates to the technical field of oil conveying equipment, and discloses a reversing oil conveying mechanism, comprising: a first external oil pipe and a second external oil pipe; an oil pump, wherein the oil pump is connected with an oil inlet pipe and an oil outlet pipe; An external oil pipe is connected to the oil inlet pipe or the oil outlet pipe through the reversing device, and the second external oil pipe is connected to the oil inlet pipe or the oil outlet pipe through the reversing device, and the reversing device It includes a switching structure for switching the connection state of the first external oil pipe and the second external oil pipe. The reversing oil conveying mechanism in the present invention can realize oil conveying and oil pumping by switching the connection state of the oil pipes internally, without two sets of equipment, which not only saves the equipment cost and reduces the occupied space volume, but also requires only one oil pipe and the target There is no need to disassemble and assemble the oil pipe twice during the process, which reduces the possibility of oil leakage.
Description
Technical Field
The invention relates to the technical field of oil transportation equipment, in particular to a reversing oil transportation mechanism.
Background
Gasoline needs to be added when vehicles are debugged on line, and the gasoline is extracted after debugging is completed, so that transportation is facilitated. When the machine tool equipment is debugged, lubricating oil needs to be input during debugging and extracted after the completion. In other similar processes, it is also possible to transport used oil, fuel oil, gear oil, hydraulic oil, and similar petroleum-based oils, etc., to the corresponding target object, input oil, and extract oil. In the process of inputting the extracted oil, the oil delivery pipe is firstly butted with a target object and the sealing is guaranteed, the oil delivery pipe is disassembled after the oil delivery, and then the oil pumping pipe is required to be replaced and butted with the target object and the sealing is guaranteed, and then the oil pumping work is carried out.
The above process is cumbersome to operate and has the following disadvantages: firstly, the oil pipe needs to be disassembled, assembled and replaced at least twice, and sealing needs to be ensured after each butting, so that leakage is easy to cause; secondly, at least one set of oil conveying system and one set of oil pumping system are needed, wherein the oil conveying system outputs oil from the storage container through an oil pump via a pipeline, the oil pumping system pumps the oil from the outside to the storage container via the oil pump via the pipeline, and the two sets of systems are high in equipment cost, large in occupied space and large in volume and complex in operation.
Disclosure of Invention
The invention aims to provide a reversing oil conveying mechanism, and aims to solve the problems that leakage is easy to occur in the oil conveying and oil pumping processes to a target object, equipment cost is high, and the size is large in the prior art.
The invention is realized in this way, the reversing oil transportation mechanism includes: the first external oil pipe and the second external oil pipe; the oil pump is connected with an oil inlet pipe and an oil outlet pipe; the first external oil pipe is communicated to the oil inlet pipe or the oil outlet pipe through the reversing device, the second external oil pipe is communicated to the oil inlet pipe or the oil outlet pipe through the reversing device, and the reversing device comprises a switching structure used for switching the connection state of the first external oil pipe and the second external oil pipe.
Further, the reversing device comprises a valve body, the valve body is provided with an inner cavity and four interfaces communicated to the inner cavity, the switching structure comprises a valve core movably arranged on the valve body and dividing the inner cavity into two chambers, and the first external oil pipe, the second external oil pipe, the oil inlet pipe and the oil outlet pipe are communicated to the inner cavity through the interfaces respectively.
Further, four the interfaces include with advance the first interface that oil pipe is connected, with the second interface that first external oil pipe is connected, with go out oil pipe and be connected the third interface and with the fourth interface of second external oil pipe connection, the case includes two convertible positions at least, the first position: the first interface is communicated to the second interface, and the third interface is communicated to the fourth interface; a second position: the first port is communicated to the fourth port, and the second port is communicated to the third port.
Furthermore, the cross section of the inner cavity is circular, the first interface, the second interface, the third interface and the fourth interface are sequentially arranged along the anticlockwise direction or the clockwise direction, the valve core is rotatably installed in the inner cavity, the rotating center of the valve core is coincided with the circle center of the inner cavity, the length of the valve core is equal to the diameter of the inner cavity, and the edge of the valve core is sealed with the inner wall of the inner cavity.
Further, still include the support body, the oil pump with the switching-over device all install in the support body, the support body is equipped with the platform that can supply the oil storage bucket to place.
Further, the shelf body comprises a plurality of wheels arranged below the platform.
Further, the frame body still includes the front panel, the front panel vertically install in the platform front end, the oil pump with the switching-over device install in front panel rear end face, be equipped with on the panel front end face and be connected to the handle of case.
Furthermore, the two sides of the upper end of the front panel are provided with holding rods convenient to hold and push, and the wheels arranged at the front end below the platform are universal wheels.
Furthermore, the front panel is provided with an identification scale for marking the communication state of the reversing device at the projection position of the handle stroke.
Further, the reversing device is provided with the interface which is vertically upward, and the interface is provided with a U-shaped joint.
Compared with the prior art, the reversing oil conveying mechanism can realize oil conveying and oil pumping by switching the connection state of the oil pipes internally, two sets of equipment are not needed, the equipment cost is saved, the occupied space volume is reduced, only one-time butt joint of the oil pipes and a target object is needed, secondary oil pipe disassembly and assembly are not needed in the process, and the possibility of oil leakage is reduced.
Drawings
FIG. 1 is a rear view of a reversing oil delivery mechanism provided by an embodiment of the present invention;
FIG. 2 is an isometric view of a reversing oil delivery mechanism provided by an embodiment of the present invention;
FIG. 3 is a front view of a reversing oil delivery mechanism provided by an embodiment of the present invention;
FIG. 4 is an exploded view of a valve body provided in accordance with an embodiment of the present invention;
fig. 5 and 6 are schematic views of the valve core in two positions in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The implementation of the present embodiment is described in detail below with reference to specific drawings.
As shown in fig. 1 to 6, the present embodiment provides a reversing oil transportation mechanism 1 including: the oil pump 15 is connected with an oil inlet pipe 13 and an oil outlet pipe 14, and when the oil pump 15 works, oil is sucked from the oil inlet pipe 13 and is output from the oil outlet pipe 14. The first external oil pipe 11 is communicated to one of the oil inlet pipe 13 or the oil outlet pipe 14 through the reversing device 16, and the second external oil pipe 12 is communicated to one of the oil inlet pipe 13 or the oil outlet pipe 14 through the reversing device 16. The reversing device 16 includes a switching structure 166 for switching the connection status of the first external oil pipe 11 and the second external oil pipe 12, and the connection status means that the first external oil pipe and the second external oil pipe are connected with each other, specifically: when the first external oil pipe 11 is connected to the oil inlet pipe 13, the corresponding second external oil pipe 12 is connected and can only be connected to the oil outlet pipe 14; when the first external oil pipe 11 is connected to the oil outlet pipe 14, the corresponding second external oil pipe 12 is connected to and can only be connected to the oil inlet pipe 13.
When the reversing oil transportation mechanism 1 in the present embodiment is used to transport oil to a target object, the first external oil pipe 11 is connected to the oil storage barrel, and the second external oil pipe 12 is connected to the target object. When oil is transported, the first external oil pipe 11 is connected to the oil inlet pipe 13 and the second external oil pipe 12 is connected to the oil outlet pipe 14 through the switching structure 166, the oil pump 15 starts to transport oil, and the circulation path of oil at this time is as follows: the oil storage barrel, the first external oil pipe 11, the oil inlet pipe 13, the oil pump 15, the oil outlet pipe 14, the second external oil pipe 12 and the target object convey oil from the oil storage barrel to the target object. When pumping oil, the first external oil pipe 11 is connected to the oil outlet pipe 14 and the second external oil pipe 12 is connected to the oil inlet pipe 13 through the switching structure 166, the oil pump 15 starts to pump oil, and the circulation path of oil at this time is as follows: the oil pump comprises a target, a second external oil pipe 12, an oil inlet pipe 13, an oil pump 15, an oil outlet pipe 14, a first external oil pipe 11 and an oil storage barrel, wherein oil is pumped back to the oil storage barrel from the target.
As can be seen from the above, in the process of oil transportation and oil pumping, only one set of the reversing oil transportation mechanism 1 in the embodiment is needed, and the oil transportation and oil pumping are realized by switching the connection state of the oil pipe internally, so that the equipment cost is saved, the occupied space volume is reduced, only one time of butt joint of the oil pipe and the target object is needed, and the oil pipe does not need to be disassembled and assembled secondarily during the process, thereby reducing the possibility of oil leakage.
The reversing device 16 can be realized by various structures, for example, the switching structure 166 is two detachable sleeves, the first external oil pipe 11 is communicated with the oil inlet pipe 13 to the two ends of the sleeve, the sleeve is detached when the connection state is switched, and then the first external oil pipe 11 and the oil outlet pipe 14 are communicated to the two ends of the sleeve to realize communication; or the switching structure 166 is a connecting end head arranged at the port of the first external oil pipe 11, the second external oil pipe 12, the oil inlet pipe 13 and the oil outlet pipe 14, the connecting end heads can be mutually nested, connected and sealed, and the connection state can be switched by fixing and disassembling the end heads.
Specifically, as shown in fig. 1 to 6, the reversing device 16 in this embodiment includes a valve body 1616, the valve body 1616 has an inner cavity 165 and four ports communicated to the inner cavity 165, the switching structure 166 includes a valve spool 166 movably mounted on the valve body 16 and dividing the inner cavity 165 into two chambers, and the first external oil pipe 11, the second external oil pipe 12, the oil inlet pipe 13, and the oil outlet pipe 14 are respectively communicated to the inner cavity 165 through the ports. The spool 166 is movable relative to the valve body 16 and changes the interface at which the two chambers are correspondingly connected.
Specifically, the four interfaces include a first interface 161 connected to the oil inlet pipe 13, a second interface 162 connected to the first external oil pipe 11, a third interface 163 connected to the oil outlet pipe 14, and a fourth interface 164 connected to the second external oil pipe 12. The switching of the spool 166 comprises at least two switchable positions, corresponding to the separation of the cavity 165 into two states, a first position (shown in fig. 5): the first port 161 and the second port 162 are located in the same chamber to communicate with each other, and the third port 163 and the fourth port 164 are located in the other chamber to communicate with each other; second position (shown in fig. 6): the first port 161 and the fourth port 164 are located in the same chamber to communicate with each other, and the second port 162 and the third port 163 are located in the other chamber to communicate with each other.
Specifically, the cross section of the cavity 165 in this embodiment is circular, the first port 161, the second port 162, the third port 163, and the fourth port 164 are sequentially arranged counterclockwise or clockwise, the spool 166 is rotatably mounted in the cavity 165, the rotation center of the spool 166 coincides with the center of the circle of the cavity 165, the length of the spool 166 is equal to the diameter of the cavity 165, a seal is formed between the edge of the spool 166 and the inner wall of the cavity 165, and the spool 166 is rotated to the position shown in fig. 5 or 6, so that the above two connection states can be realized.
As shown in fig. 1 to fig. 3, the reversing oil transportation mechanism 1 in this embodiment further includes a frame 17, the oil pump 15 and the reversing device 16 are both mounted on the frame 17, and the frame 17 is provided with a platform 18 for placing the oil storage barrel. By moving the frame body 17, the oil pump 15, the reversing device 16 and the oil storage barrel can be conveniently moved to the position near the target object, so that the operation is convenient.
Preferably, the frame 17 includes a plurality of wheels 19 disposed under the platform 18, so that the frame 17 can be directly pushed to move to a target position conveniently.
The frame body 17 further comprises a front panel 172, the front panel 172 is longitudinally installed at the front end of the platform 18, the oil pump 15 and the reversing device 16 are installed at the rear end face of the front panel 172, the reversing device 16 is located above, and the oil pump 15 is located below. A handle 168 connected to the spool 166 is provided on the front face of the front panel 172. The valve core 166 is driven to rotate by the operating handle 168, so that the connection state is switched.
Further, an identification scale for indicating a connection and communication state of the reversing connection is provided at a projection position of a stroke of the handle 168 on the front panel 172, and the connection state at this time can be known through the identification scale during operation, for example, two marks are indicated, one mark is "oil delivery", the handle 168 indicates that oil is delivered to the outside after the oil pump 15 is started at this time, and the other mark is "oil pumping", and accordingly, the handle 168 indicates that oil is pumped to the outside after the oil pump 15 is started at this time.
Preferably, since the reversing device 16 actually has four ports, in order to facilitate connection with an external storage tank and an external object and reduce bending of an oil pipe, the reversing device 16 in this embodiment has a vertically upward port, i.e. the first port 161, and accordingly, the second port 162 and the fourth port 164 are horizontal ports, and the third port 163 is vertically downward, where the horizontally disposed second port 162 and the horizontally disposed fourth port 164 are directly connected to the external through the oil pipe, and since the reversing device 16 is located above the oil pump 15, the third port 163 can also be directly connected to the oil pump 15 through the oil pipe, and the oil pipe at all three ports does not need to be bent. And if the first connector 161 which is vertically upward is directly connected to the oil pump 15 through an oil pipe, the oil pipe is necessarily bent, and the passing efficiency is affected, so that as shown in fig. 1, a U-shaped joint 167 is installed at the first connector 161, the connection direction is changed to be downward, and the oil pipe can be communicated with the first connector 161 without bending.
Preferably, as shown in fig. 1 to 3, two sides of the upper end of the frame 17 are provided with handrails 171 for facilitating hand-held pushing, and the wheels 19 arranged at the front end below the platform 18 are universal wheels 191. The operator can conveniently push the whole reversing oil transportation mechanism 1 to move by holding the holding rod 171, and the wheels 19 in front of the lower end of the platform 18 are universal wheels 191 and correspondingly positioned below the front panel 172, so that the holding rod 171 can conveniently turn when being pushed.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. Switching-over oil transportation mechanism, its characterized in that includes:
the first external oil pipe and the second external oil pipe;
the oil pump is connected with an oil inlet pipe and an oil outlet pipe;
the first external oil pipe is communicated to the oil inlet pipe or the oil outlet pipe through the reversing device, the second external oil pipe is communicated to the oil inlet pipe or the oil outlet pipe through the reversing device, and the reversing device comprises a switching structure used for switching the connection state of the first external oil pipe and the second external oil pipe.
2. The reversing oil delivery mechanism of claim 1, wherein the reversing device comprises a valve body having an inner cavity and four ports communicating with the inner cavity, the switching mechanism comprises a spool movably mounted to the valve body and dividing the inner cavity into two chambers, and the first external oil pipe, the second external oil pipe, the oil inlet pipe and the oil outlet pipe communicate with the inner cavity through the ports, respectively.
3. The reversing oil delivery mechanism according to claim 2, wherein the four ports include a first port connected to the oil inlet pipe, a second port connected to the first external oil pipe, a third port connected to the oil outlet pipe, and a fourth port connected to the second external oil pipe, and the valve spool includes at least two switchable positions, a first position: the first interface is communicated to the second interface, and the third interface is communicated to the fourth interface; a second position: the first port is communicated to the fourth port, and the second port is communicated to the third port.
4. The reversing oil delivery mechanism according to claim 3, wherein the cross section of the inner cavity is circular, the first port, the second port, the third port and the fourth port are sequentially arranged counterclockwise or clockwise, the valve core is rotatably mounted in the inner cavity, the rotation center of the valve core coincides with the center of the circle of the inner cavity, the length of the valve core is equal to the diameter of the inner cavity, and a seal is formed between the edge of the valve core and the inner wall of the inner cavity.
5. The reversing oil delivery mechanism according to any one of claims 1 to 4, further comprising a frame body, wherein the oil pump and the reversing device are both mounted on the frame body, and the frame body is provided with a platform for placing an oil storage barrel.
6. The reversing oil delivery mechanism of claim 5, wherein the frame includes a plurality of wheels disposed below the platform.
7. The reversing oil delivery mechanism according to claim 6, wherein the frame further comprises a front panel, the front panel is longitudinally mounted at the front end of the platform, the oil pump and the reversing device are mounted on the rear end face of the front panel, and a handle connected to the valve core is arranged on the front end face of the panel.
8. The reversing oil delivery mechanism according to claim 7, wherein the front panel is provided with holding rods at both sides of the upper end thereof for facilitating hand-held pushing, and the wheels arranged at the front end below the platform are universal wheels.
9. The reversing oil delivery mechanism according to claim 7, wherein an identification scale for indicating a communication state of the reversing device is provided on a projection position of the handle stroke on the front panel.
10. The reversing oil delivery mechanism according to any one of claims 2 to 4, wherein the reversing device has a vertically upward facing interface to which a U-shaped fitting is attached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010161177.5A CN111207053A (en) | 2020-03-10 | 2020-03-10 | Reversing oil conveying mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010161177.5A CN111207053A (en) | 2020-03-10 | 2020-03-10 | Reversing oil conveying mechanism |
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| Publication Number | Publication Date |
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| CN111207053A true CN111207053A (en) | 2020-05-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010161177.5A Pending CN111207053A (en) | 2020-03-10 | 2020-03-10 | Reversing oil conveying mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN111207053A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112523986A (en) * | 2020-11-09 | 2021-03-19 | 广西玉柴机器股份有限公司 | Water pumping device of vehicle cooling system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201519505U (en) * | 2009-09-28 | 2010-07-07 | 石家庄供电公司 | Plate and frame oil filter machine inlet and outlet oil four-way reversing valve |
| US20100202902A1 (en) * | 2007-07-19 | 2010-08-12 | Toyota Jidosha Kabushiki Kaisha | Hydraulic apparatus |
| CN102128286A (en) * | 2011-03-02 | 2011-07-20 | 宁波电业局 | Oil way switching device for overhauling of transformer |
| CN204186573U (en) * | 2014-10-24 | 2015-03-04 | 广西电网有限责任公司柳州供电局 | Oil pump passes in and out oily reversing arrangement |
| CN204371826U (en) * | 2014-12-31 | 2015-06-03 | 浙江汉达机械有限公司 | A kind of integrated commutation oil hydraulic cylinder |
| CN110375925A (en) * | 2019-06-14 | 2019-10-25 | 岭澳核电有限公司 | Nuclear power station oil filter and the method for detecting oil liquid leakage |
| CN212106180U (en) * | 2020-03-10 | 2020-12-08 | 士商（上海）机械有限公司 | Reversing oil conveying mechanism |
-
2020
- 2020-03-10 CN CN202010161177.5A patent/CN111207053A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100202902A1 (en) * | 2007-07-19 | 2010-08-12 | Toyota Jidosha Kabushiki Kaisha | Hydraulic apparatus |
| CN201519505U (en) * | 2009-09-28 | 2010-07-07 | 石家庄供电公司 | Plate and frame oil filter machine inlet and outlet oil four-way reversing valve |
| CN102128286A (en) * | 2011-03-02 | 2011-07-20 | 宁波电业局 | Oil way switching device for overhauling of transformer |
| CN204186573U (en) * | 2014-10-24 | 2015-03-04 | 广西电网有限责任公司柳州供电局 | Oil pump passes in and out oily reversing arrangement |
| CN204371826U (en) * | 2014-12-31 | 2015-06-03 | 浙江汉达机械有限公司 | A kind of integrated commutation oil hydraulic cylinder |
| CN110375925A (en) * | 2019-06-14 | 2019-10-25 | 岭澳核电有限公司 | Nuclear power station oil filter and the method for detecting oil liquid leakage |
| CN212106180U (en) * | 2020-03-10 | 2020-12-08 | 士商（上海）机械有限公司 | Reversing oil conveying mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112523986A (en) * | 2020-11-09 | 2021-03-19 | 广西玉柴机器股份有限公司 | Water pumping device of vehicle cooling system |
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Application publication date: 20200529 |