CN214087693U - Vacuum-pumping type ultrahigh-pressure modular oiling vehicle - Google Patents
Vacuum-pumping type ultrahigh-pressure modular oiling vehicle Download PDFInfo
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- CN214087693U CN214087693U CN202022444116.8U CN202022444116U CN214087693U CN 214087693 U CN214087693 U CN 214087693U CN 202022444116 U CN202022444116 U CN 202022444116U CN 214087693 U CN214087693 U CN 214087693U
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Abstract
The utility model provides a vacuum-pumping type ultrahigh pressure modular oil injection vehicle, including removing the frame, install on removing the frame: the oil storage cylinder comprises a cylinder bottom, a cylinder body and a cylinder cover, and a vacuumizing pipe with a graduated scale and an oil way connecting pipe are arranged on the side surface of the cylinder body; the electrical appliance operation control module comprises a conveying pipeline respectively communicated with the oil storage cylinder, a plurality of external interfaces for external equipment to connect, an instrument for displaying corresponding parameters and stop valves respectively arranged on the conveying pipeline for controlling on-off; a vacuum pump; and the driving device comprises a motor immersed in hydraulic oil in the sealed shell and a plunger pump connected with the motor. The utility model discloses it is together fixed through the bridging board with cover to pass through vacuum tube and oil circuit connecting pipe on the bobbin base trapezoidally, both can improve the steadiness, can regard as the display scale of oil reserve simultaneously. The motor and the plunger pump are arranged in the shell with hydraulic oil, the motor and the plunger pump can be cooled rapidly through flowing hydraulic oil, and the reliability of the equipment is improved.
Description
Technical Field
The utility model relates to a high-pressure oiling, filtration and the evacuation field of equipment especially relate to a steerable arbitrary pipeline break-make is in order to make things convenient for evacuation superhigh pressure modular oiling car that each part was dismantled.
Background
According to the oil injection vehicle in the prior art, the designated equipment is subjected to oil supplement operation through the motor and the vacuum pump, for example, hydraulic oil of hydraulic equipment is supplemented, and in the oil supplement process, residual oil in the equipment can be pumped out to be filtered and then is refilled into the equipment, so that the labor intensity of workers is reduced, and meanwhile, the quality of the oil can be improved.
When the oiling car used, generally need carry out the evacuation operation in to the oil storage bucket, current evacuation mode is in an oil storage bucket external connection solitary pipeline, extends to in the top of oil storage bucket by vacuum pump department, and this kind of connection structure is after a period of live time, and the phenomenon of not hard up oil leak easily appears in this pipeline.
In addition, the connecting line between each part of current oiling car all is under the normal condition with the direct intercommunication of oil storage bucket, and the centre does not have the switch of control break-make, and this structure makes when maintaining certain independent module, need put the oil in the oil storage bucket dry in advance, just can dismantle, has influenced maintenance efficiency.
In addition, the motor of the existing oil injection vehicle is generally and independently installed on the oil injection vehicle, and the installation mode enables the motor to work for a period of time, so that the heat dissipation efficiency is low, the heat productivity is extremely high, and the oil injection efficiency is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a relate to a steerable arbitrary pipeline break-make is in order to make things convenient for the evacuation superhigh pressure modular oiling car that each part was dismantled.
Specifically, the utility model provides a vacuum-pumping formula superhigh pressure modular oiling car, including the removal frame that has the gyro wheel, its characterized in that remove and install on the frame:
the oil storage cylinder is used for storing hydraulic oil, is a hollow cylinder made of transparent materials, and comprises a cylinder bottom with a plurality of independent channels, a cylinder body for containing the hydraulic oil and a cylinder cover for sealing an opening at the upper part of the cylinder body, which are connected in a sealing way, and a vacuumizing pipe and an oil way connecting pipe, the two ends of which are respectively communicated with the cylinder bottom and the cylinder cover, and the outer surface of which is provided with a graduated scale, are arranged on the side surface of the cylinder body;
the electrical appliance operation control module comprises a conveying pipeline respectively communicated with corresponding channels on the oil storage cylinder, a plurality of external interfaces for external equipment to connect, an instrument for displaying corresponding parameters, and stop valves respectively arranged on the conveying pipeline for controlling on-off;
the vacuum pump is used for vacuumizing the oil storage cylinder through the vacuumizing pipe;
and the driving device comprises a motor immersed in hydraulic oil in the sealed shell and a plunger pump connected with the motor, and the plunger pump is communicated with the oil return pipeline and the oil discharge pipeline and is used for operating the input and the output of the hydraulic oil.
The utility model discloses utilize bridging board and cover fixed together with evacuation pipe and oil circuit connecting pipe, both can improve the steadiness, can regard as the demonstration scale of oil reserve simultaneously, avoided rocking and warping that current external structure leads to, prevented the oil leak phenomenon. The motor and the plunger pump are arranged in the shell with hydraulic oil, the motor and the plunger pump can be cooled rapidly through the flowing hydraulic oil, and the service life of the motor and the plunger pump is greatly prolonged. All parts can be maintained independently through the corresponding stop valves, hydraulic oil in the oil storage pipe does not need to be discharged in advance, the maintenance efficiency can be greatly improved, and the reliability of equipment is improved.
Drawings
Fig. 1 is a schematic structural view of an oiling trolley according to an embodiment of the present invention;
fig. 2 is a schematic view of the internal structure of the oiling vehicle according to an embodiment of the present invention;
fig. 3 is a schematic structural view of an oil storage cylinder according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an electrical operation control module according to an embodiment of the present invention;
FIG. 5 is a front view of FIG. 4;
fig. 6 is a schematic view of a driving device according to an embodiment of the present invention;
fig. 7 is a schematic view of a connection structure between a motor and a plunger pump according to an embodiment of the present invention;
fig. 8 is a schematic structural view of a bridge plate according to an embodiment of the present invention;
fig. 9 is a top view of a cartridge bottom according to an embodiment of the present invention.
Detailed Description
The detailed structure and implementation process of the present solution are described in detail below with reference to specific embodiments and the accompanying drawings.
As shown in fig. 1 and 2, in an embodiment of the present invention, a vacuumized ultrahigh pressure modular fuel injection vehicle is disclosed, which comprises a movable frame 1 with rollers 11, a fuel storage tank 2 mounted on the movable frame 1, an electric appliance operation control module 3, a vacuum pump 48 and a driving device 4.
The oil storage cylinder 2 is used for storing hydraulic oil supplemented or replaced for other equipment, is a hollow cylinder structure made of transparent materials, generally comprises a cylinder bottom 21 with a plurality of independent channels, a cylinder body 22 for containing the hydraulic oil and a cylinder cover 23 for sealing an opening at the upper part of the cylinder body 22, which are hermetically connected with each other, and a vacuum tube 25 and an oil way connecting tube 251, wherein the two ends of the vacuum tube are respectively communicated with the cylinder bottom 21 and the cylinder cover 23, and the outer surface of the vacuum tube is provided with a graduated scale. As shown in fig. 3, the channel 211 on the cylinder bottom 21 refers to a channel for injecting and discharging hydraulic oil, a channel for evacuating, a channel for draining hydraulic oil, a channel for connecting a manual pump described later, and the like, and such channels are conventionally provided and will not be described in detail.
Wherein, the cover 23 of the oil storage cylinder 2 is inserted into the upper opening end of the cylinder 22 through a sealing member, wherein the sealing member can be a plurality of sealing rings arranged on the outer circumference of the cover 23 or the inner surface of the opening end of the cylinder 22. The rectangular gland 24 with the area larger than the opening area of the cylinder 22 is installed on the upper surface of the cylinder cover 23, the center of the gland 24 is provided with a circular hole 241 with the area smaller than that of the cylinder cover, the circular hole 241 can prevent components installed on the cylinder cover 24 from being blocked by the gland 24, the gland 24 is fixed with the cylinder bottom 21 through screws 29 penetrating through four corners, and the cylinder cover 23 is provided with a deflation valve 26. The air release valve 26 is used to communicate the negative pressure inside the cartridge to the outside air when no vacuum is required inside the cartridge 2.
The mounted vacuumizing tube 25 and the oil way connecting tube 251 are respectively parallel to the cylinder 22 and symmetrically positioned at two sides of the cylinder 22, graduated scales capable of displaying the height of hydraulic oil in the cylinder 22 are respectively arranged on the outer surfaces of the vacuumizing tube 25 and the oil way connecting tube 251, one end of the vacuumizing tube 25 is communicated and fixed with a vacuumizing channel on the cylinder bottom 21 through a sealing connecting tube, and the other end of the vacuumizing tube 25 is communicated and fixed with a switching hole on the gland 24 through the sealing connecting tube, so that the vacuumizing tube 25 can be stably mounted at one side of the cylinder 22 and cannot shake or deform along with the movement of the mobile vehicle; a bridging plate 27 for communicating the upper part of the switching hole of the gland 24 and the cylinder cover 23 is arranged between the upper part of the switching hole and the cylinder cover, a hollow channel is arranged in the bridging plate 27, two ends of the hollow channel can form sealing connection with corresponding connecting holes, and the body is fixed with the gland 24 through bolts. In this embodiment, the oil path connecting pipe 251 is used to inject the hydraulic oil pumped back by the high-pressure oil return line into the cylinder 22 through the cylinder cover 23, except that one end of the oil path connecting pipe 251 is connected to the oil return passage on the cylinder bottom 21, and the other connecting structures are the same as the mounting structure of the evacuation pipe 25.
As shown in fig. 4 and 5, the electrical appliance operation control module 3 serves as an oil path circulation center and a control center for controlling the oil filling process, and simultaneously realizes electrical appliance control; the device comprises a conveying pipeline which is respectively communicated with corresponding channels on the oil storage cylinder 2, a plurality of external interfaces which are used for connecting external equipment and are communicated with the corresponding conveying pipeline, an instrument which displays corresponding parameters of the corresponding conveying pipeline, and stop valves which are respectively arranged on the conveying pipeline to control the on-off.
The specific delivery line includes: a high-pressure pipeline 31 for conveying high-pressure hydraulic oil, a low-pressure oil return pipeline 32 for conveying normal-pressure hydraulic oil into the driving device 4, and a high-pressure oil return pipeline 33 for returning high-pressure hydraulic oil into the oil storage cylinder 2.
The pipelines are respectively provided with a filter screen for filtering impurities in the hydraulic oil, a low-pressure oil filter screen inserted and installed in the low-pressure oil return pipeline 32 and an oil return filter screen installed in the high-pressure oil return pipeline 33.
The specific instrument includes: a pressure gauge 34 for indicating the pressure in the high-pressure line 31, and a vacuum gauge 35 for indicating the degree of vacuum in the oil reservoir 2.
The specific stop valves include a flow valve 36 for controlling the on/off of the high-pressure pipeline 31, an oil return valve 27 for controlling the on/off of the low-pressure oil return pipeline 32, and a stop valve 38 for controlling the on/off of the high-pressure oil return pipeline 33.
The vacuum pump 48 is used for vacuumizing the oil storage cylinder 2 and is directly communicated with a vacuumizing channel on the cylinder bottom 21 through a pipeline.
As shown in fig. 6 and 7, the driving device 4 includes a motor 42 immersed in hydraulic oil in the sealed housing 41, and a plunger pump 43 connected to the motor 42, the plunger pump 43 serving as a power device for outputting high pressure of the hydraulic oil in the oil reservoir 2 and for returning the hydraulic oil to the oil reservoir 2 among other devices.
An adapter 47 for fixing the motor 42 and the plunger pump 43 is arranged in the housing 41, the output end of the motor 42 is connected with the input end of the plunger pump 43 through an adapter ring 421, the output end of the plunger pump 43 extends out of the housing 41 through a connecting pipe 431 to be communicated with the high-pressure pipeline 31, the low-pressure oil return pipeline 32 is communicated with an oil return hole 471 in the adapter 47, and the low-pressure oil return pipeline 32 is used for automatically supplementing hydraulic oil in the oil storage cylinder 2 into the housing 41 so as to fill lost hydraulic oil.
When the device works, hydraulic oil with a corresponding amount is injected into the oil storage cylinder 2, the specific amount can be obtained through a graduated scale on the vacuumizing pipe 25, and then the cylinder cover 23 and the gland 24 are installed; and then the vacuum pump 48 pumps the air in the oil storage cylinder 2 out from the cylinder cover 23 through the vacuumizing pipe 25, and the vacuum meter 35 determines that the vacuum degree in the cylinder 22 meets the requirement, and then the vacuum pump 48 stops working.
The moving vehicle 1 is pushed to the equipment needing oil filling by the roller 11, such as: when the current equipment needs to supplement hydraulic oil, the external interface of the high-pressure pipeline 31 is communicated with the equipment through a pipeline, the motor 42 is used for driving the plunger pump 43 to work, the hydraulic oil in the oil storage cylinder 2 is output to the equipment through the high-pressure pipeline 31, and the motor 42 stops working after the supplement amount is met.
Such as: when the hydraulic oil in the current equipment needs to be cleaned, the external interface of the high-pressure oil return pipeline 33 is communicated with the equipment through a pipeline, the plunger pump 43 is driven to work by the motor 42, the hydraulic oil in the equipment is pumped into the cylinder 22 through the oil return channel on the cylinder bottom 21 through the high-pressure oil return pipeline 33 through the oil return channel 251 and the cylinder cover 23, the pumped-back hydraulic oil is filtered at the oil return filter screen of the high-pressure oil return pipeline 33, after the pumping is finished or in the pumping process, the external interface of the high-pressure pipeline 31 is communicated with the equipment, meanwhile, the hydraulic oil is input into the equipment, the process can be directly supplementing the hydraulic oil, or the input hydraulic oil and the original hydraulic oil are utilized to form circular cleaning until the hydraulic oil in the equipment is cleaned or supplemented.
Such as: when the motor 42 on the moving vehicle 1 needs maintenance, the flow valve 36 on the high-pressure pipeline 31 and the return valve 37 on the low-pressure return pipeline 32 can be closed, so that the oil path between the shell 41 and the oil storage cylinder 2 is completely cut off, and the hydraulic oil in the oil storage cylinder 2 does not need to be drained firstly when the driving device 4 needs maintenance. When the filter screen needs to be replaced or cleaned, the flow valve 36 or the check valve 38 can be closed to prevent the hydraulic oil in the oil tank 2 from leaking out during maintenance.
In this embodiment, the bottom of the movable frame 1 may be provided with a case 12 having four closed sides for easy installation of the respective devices, and the driving unit 4 and the vacuum pump 48 may be directly installed in the case 12, and may be maintained or installed through a movable door provided in the case 12. The oil storage cylinder 2 is installed on the upper part of the box body 12, and a holding box 13 for placing an external pipeline and a handrail 14 for facilitating pushing the moving frame 1 can be further provided on the side surface of the box body 12.
This embodiment will be in the same place vacuum tube and oil storage section of thick bamboo are fixed, both can improve the steadiness, can regard as the demonstration scale of oil storage volume simultaneously, have avoided rocking and being out of shape that current external structure leads to, have prevented the oil leak phenomenon. The motor and the plunger pump are arranged in the shell with hydraulic oil, the motor and the plunger pump can be cooled rapidly through the flowing hydraulic oil, and the service life of the motor and the plunger pump is greatly prolonged. All parts can be maintained independently through the corresponding stop valves, hydraulic oil in the oil storage pipe does not need to be discharged in advance, and the maintenance efficiency can be greatly improved.
In one embodiment of the present invention, the driving device 4 further comprises a manual pump 47 which is operated manually in a power-off state, as shown in fig. 8, and the manual pump 47 is communicated with the oil discharge passage on the cylinder bottom 21 through a bridge plate 471 with a corner. Here, the corner means that the shape of the bridge plate 471 itself is non-linear, and may be formed by one or more corners according to the connection position, and the direction of the corner does not mean only one plane, and it may be turned in a three-dimensional direction. The oil discharge passage comprises a high-pressure pipeline 31 and a high-pressure oil return pipeline 33, so that the manual pump 47 can realize the functions of oil transportation and oil return.
In one embodiment of the present invention, to facilitate the discharge of the hydraulic oil in the oil storage cylinder 2, as shown in fig. 9, the upper surface of the cylinder bottom 21 contacting the cylinder body 22 may be provided with an inner concave surface for facilitating the collection of the hydraulic oil, and a curved groove 213 for collecting the hydraulic oil is provided at the inner concave surface, and the curved groove 213 may extend to the upper surface of the entire cylinder bottom 21 to allow the hydraulic oil to flow in as much as possible; an oil drain port 212 communicating with the meandering groove 213 is provided outside the cylinder bottom 21. When the hydraulic oil in the oil storage cylinder 2 needs to be discharged, the oil discharge port 212 can be opened to enable the hydraulic oil to automatically flow out, and the last hydraulic oil can be collected in the inward concave curved groove 213 and completely discharged out of the oil storage cylinder 2. The cylinder bottom 21 with the concave surface can also collect impurities in the hydraulic oil by using the bent groove 213 and discharge the impurities out of the oil storage cylinder 2 at any time by using the oil discharge interface 212.
In an embodiment of the present invention, a lock ring 44 is installed at one end of the housing 41 close to the motor 42, a seal disc 45 for sealing and isolating the hydraulic oil inside the housing 41 and the outside air is installed on the lock ring 44, a terminal 451 of a cable 422 on the transfer motor 42 is provided on the seal disc 45, and a housing cavity 441 for housing the output cable 422 on the seal disc 45 is further provided at one end of the lock ring 44 far away from the motor 42. The seal disk 45 of the present embodiment can lead the cable 422 of the motor 42 out of the housing 41 through the plurality of terminals 451 without affecting the connection and output of the cable 422 of the motor 42 under the condition of isolating the hydraulic oil. The receiving cavity 441 can be used for forming redundancy for the cables 422 at the output end of the sealing disc 45, so as to avoid poor contact caused by the fact that the cables 422 are pulled by the motor 42 during operation.
The utility model discloses an in the embodiment, still be connected with the overflow pipeline on high-pressure pipeline 31, the one end and the high-pressure pipeline 31 of this overflow pipeline are connected the other end and are connected with the overflow channel on the bobbin base 21, install overflow valve 39 on the overflow pipeline, and the overflow pipe is installed perpendicularly in the overflow channel exit in the bobbin base.
When the high-pressure pipeline 31 is full of hydraulic oil output to the equipment to be supplied with oil, the oil pressure in the high-pressure pipeline 31 increases, and when the increased pressure reaches a predetermined value, the overflow valve 39 is opened, so that the redundant hydraulic oil enters the overflow pipeline, then enters the overflow pipe in the cylinder 22 through the overflow channel, and is discharged into the cylinder 22 from the upper end of the overflow pipe.
The height of the overflow pipe is generally higher than the height of the hydraulic oil conventionally stored in the cylinder body 22, so that an oil injection person can directly observe whether oil is discharged from the upper end of the overflow pipe through the cylinder body 22 to determine whether oil injection is completed. The overflow pipe can be made of transparent materials or metal materials.
Thus, 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 in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. The utility model provides a vacuum pumping formula superhigh pressure modular oiling car, is including the removal frame that has the gyro wheel, its characterized in that remove and install on the frame:
the oil storage cylinder is used for storing hydraulic oil, is a hollow cylinder made of transparent materials, and comprises a cylinder bottom with a plurality of independent channels, a cylinder body for containing the hydraulic oil and a cylinder cover for sealing an opening at the upper part of the cylinder body, which are connected in a sealing way, and a vacuumizing pipe and an oil way connecting pipe, the two ends of which are respectively communicated with the cylinder bottom and the cylinder cover, and the outer surface of which is provided with a graduated scale, are arranged on the side surface of the cylinder body;
the electrical appliance operation control module comprises a conveying pipeline respectively communicated with corresponding channels on the oil storage cylinder, a plurality of external interfaces for external equipment to connect, an instrument for displaying corresponding parameters, and stop valves respectively arranged on the conveying pipeline for controlling on-off;
the vacuum pump is used for vacuumizing the oil storage cylinder through the vacuumizing pipe;
and the driving device comprises a motor immersed in hydraulic oil in the sealed shell and a plunger pump connected with the motor, and the plunger pump is communicated with the oil return pipeline and the oil discharge pipeline and is used for operating the input and the output of the hydraulic oil.
2. The oiling vehicle of claim 1,
the bottom of the movable frame is a box body with four closed sides, the oil storage cylinder is installed on the upper portion of the box body, a containing box used for containing pipelines and a handrail convenient to push the movable frame are arranged on the side face of the box body.
3. The oiling vehicle of claim 1,
the cylinder cover of the oil storage cylinder is inserted in the upper opening end of the cylinder body in a sealing mode, a rectangular gland with the area larger than the opening area of the cylinder body is mounted on the upper surface of the cylinder cover, a circular hole with the area smaller than that of the cylinder cover is formed in the center of the gland, the gland is fixed to the cylinder bottom through screws penetrating through four corners, and a release valve is mounted on the cylinder cover.
4. The oiling vehicle of claim 1,
the drive device also comprises a manually operated manual pump which is communicated with the oil discharge channel on the cylinder bottom through a bridge plate with corners.
5. The oiling vehicle of claim 1,
the conveying pipeline comprises a high-pressure pipeline for conveying high-pressure hydraulic oil, a low-pressure oil return pipeline for conveying normal-pressure hydraulic oil into the driving device and a high-pressure oil return pipeline for returning external hydraulic oil, and filter screens are respectively installed on the pipelines.
6. The fuel filling vehicle of claim 3,
the vacuumizing pipe and the oil way connecting pipe are symmetrically arranged on two sides of the cylinder body, one end of the vacuumizing pipe is communicated with a vacuumizing channel on the cylinder bottom through a sealing connecting pipe, the other end of the vacuumizing pipe is communicated with a switching hole on the gland through the sealing connecting pipe, and a bridging plate for communicating the switching hole and the cylinder cover is arranged between the switching hole and the cylinder cover; one end of the oil way connecting pipe is communicated with the oil return channel on the barrel bottom, the other end of the oil way connecting pipe is communicated with the switching hole on the gland through the sealing connecting pipe, and a bridging plate for communicating the switching hole and the barrel cover is arranged between the switching hole and the barrel cover.
7. The oiling vehicle of claim 1,
the upper surface of the cylinder bottom is an inner concave surface convenient for hydraulic oil to collect, a bent groove allowing the hydraulic oil to flow out is formed in the inner concave surface, and an oil drainage connector communicated with the bent groove is formed in the outer portion of the cylinder bottom.
8. The fuel filling vehicle of claim 5,
the utility model discloses a high pressure oil return pipeline, including casing, motor, high pressure pipeline, low pressure oil return pipeline, be provided with the confession in the casing the motor with the fixed switching dish of plunger pump, the output of motor pass through the switching ring with the input of plunger pump is connected, the output of plunger pump stretches out through the connecting pipe the casing outer with high pressure line intercommunication, low pressure oil return pipeline communicates with the oil gallery on the switching dish.
9. The fuel filling vehicle of claim 8,
the motor is characterized in that a lock ring is installed at one end, close to the motor, of the shell, a seal disc for sealing and isolating hydraulic oil and external air in the shell is installed on the lock ring, a wiring terminal of a circuit on the motor is arranged on the seal disc in a transferring mode, and a containing cavity for containing an output circuit on the seal disc is further arranged on the lock ring.
10. The oiling vehicle of claim 9,
the high-pressure pipeline is connected with an overflow pipeline, one end of the overflow pipeline is connected with the high-pressure pipeline, the other end of the overflow pipeline is connected with an overflow channel on the cylinder bottom, an overflow valve is installed on the overflow pipeline, and an overflow pipe is vertically installed at the outlet of an overflow oil pipe on the cylinder bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022444116.8U CN214087693U (en) | 2020-10-28 | 2020-10-28 | Vacuum-pumping type ultrahigh-pressure modular oiling vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022444116.8U CN214087693U (en) | 2020-10-28 | 2020-10-28 | Vacuum-pumping type ultrahigh-pressure modular oiling vehicle |
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| Publication Number | Publication Date |
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| CN214087693U true CN214087693U (en) | 2021-08-31 |
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| CN202022444116.8U Active CN214087693U (en) | 2020-10-28 | 2020-10-28 | Vacuum-pumping type ultrahigh-pressure modular oiling vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113793745A (en) * | 2021-09-17 | 2021-12-14 | 保定变压器有限公司 | Multifunctional vacuumizing oil injection device |
-
2020
- 2020-10-28 CN CN202022444116.8U patent/CN214087693U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113793745A (en) * | 2021-09-17 | 2021-12-14 | 保定变压器有限公司 | Multifunctional vacuumizing oil injection device |
| CN113793745B (en) * | 2021-09-17 | 2023-08-08 | 保定变压器有限公司 | Multifunctional vacuumizing oiling device |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20221123 Address after: No. 151, Fuji Village, Huangzhuang Town, Sanhe City, Langfang City, Hebei Province 065204 Patentee after: Zhang Yang Address before: 102488 no.18-d2213, Jianshe Road, Kaixuan street, Fangshan District, Beijing Patentee before: BEIJING BOJIAN TRANSMISSION TECHNOLOGY Co.,Ltd. Patentee before: Li Yin |
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Effective date of registration: 20230105 Address after: 100070 2002-A157, Unit 1, 17th Floor, Building 1, Yard 91, South Third Ring West Road, Fengtai District, Beijing Patentee after: BEIJING BOJIAN TRANSMISSION TECHNOLOGY Co.,Ltd. Patentee after: Li Yin Patentee after: Li Zhen Address before: No. 151, Fuji Village, Huangzhuang Town, Sanhe City, Langfang City, Hebei Province 065204 Patentee before: Zhang Yang |