CN211314733U - Oil return filter element of engineering machinery - Google Patents
Oil return filter element of engineering machinery Download PDFInfo
- Publication number
- CN211314733U CN211314733U CN201921924746.6U CN201921924746U CN211314733U CN 211314733 U CN211314733 U CN 211314733U CN 201921924746 U CN201921924746 U CN 201921924746U CN 211314733 U CN211314733 U CN 211314733U
- Authority
- CN
- China
- Prior art keywords
- oil
- oil return
- inlet pipe
- oil inlet
- return filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims description 10
- 239000012535 impurity Substances 0.000 abstract description 11
- 239000008187 granular material Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 182
- 239000010720 hydraulic oil Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000005253 cladding Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Images
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses an oil return filter element of engineering machinery, wherein, an oil return filter element main body is rotationally connected with an oil return cavity; the two sides outside the oil return cavity are respectively communicated with an oil return inlet and an oil return outlet, and the oil return filter element main body is rotatably arranged between the oil return inlet and the oil return outlet; the top surface of the outer top surface of the oil return filter element main body is fixedly connected with a second oil inlet pipe cavity, the top surface of the second oil inlet pipe cavity penetrates through the upper oil inlet pipe orifice, the upper oil inlet pipe orifice and the inner bottom end surface of the second oil inlet pipe cavity are fixedly connected with a telescopic piece, and the telescopic piece and the upper oil inlet pipe orifice are movably sealed; the bottom end in the cavity of the upper oil inlet pipe penetrates through the second oil inlet ring groove, the upper top end of the oil return filter element main body penetrates through the third oil inlet ring groove, and the cavity of the upper oil inlet pipe is communicated with the inner cavity of the oil return filter element main body through the second oil inlet ring groove and the third oil inlet ring groove which correspond to each other up and down; the utility model discloses make the impurity granule in the oil return filter core drive principle oil return filter core main part by centrifugal force, and then avoid impurity and then to hydraulic system, and can get into oil return filter core main part once more when the oil return filter core blocks up.
Description
Technical Field
The utility model relates to an oil return filter core especially relates to an engineering machine tool oil return filter core.
Background
The hydraulic oil return filter element is arranged in an oil way of the hydraulic system and used for removing metal powder and other mechanical impurities worn by each element in the hydraulic system so as to keep the oil way clean and prolong the service life of the hydraulic system; at present, traditional oil return filter core end cover and skeleton are the metal material mostly, and metal material's accessory often need carry out surface treatment, carry out the surface coating promptly, and the surface coating uses and drops easily after a period, and the cladding material piece that drops can cause the pollution to system fluid, blocks up the oil return filter core when cladding material piece is serious for during its unable oil feed enters into mechanical hydraulic system, probably damages system component when serious.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of prior art, the utility model provides an engineering machine tool oil return filter core can solve the technical defect who exists among the background art.
In order to solve the technical problem, the utility model provides a following technical scheme: an oil return filter element of engineering machinery comprises an oil return cavity and an oil return filter element main body, wherein the oil return filter element main body is axially and rotatably connected to an inner cavity of the oil return cavity; the two sides outside the oil return cavity are respectively communicated with an oil return inlet and an oil return outlet, and the oil return filter element main body is rotatably arranged between the oil return inlet and the oil return outlet; the top surface of the outer top surface of the oil return filter element main body is fixedly connected with a second oil inlet pipe cavity, the top surface of the second oil inlet pipe cavity penetrates through an upper oil inlet pipe orifice, the upper oil inlet pipe orifice and the inner bottom end surface of the second oil inlet pipe cavity are fixedly connected with a telescopic piece, and the telescopic piece and the upper oil inlet pipe orifice are movably sealed; go up the interior bottom of oil inlet pipe mouth and link up the second and go into the oil ring groove, oil return filter core main part upper end link up the third and go into the oil ring groove, the second oil feed lumen goes into oil ring groove and the inner chamber intercommunication of third income oil ring groove and oil return filter core main part through the second that corresponds from top to bottom.
Preferably, the oil return filter element main body comprises upper and lower corresponding end covers, a cylindrical framework is fixedly arranged between the upper and lower end covers, and a filter screen is fixedly arranged between the upper and lower end covers corresponding to the cylindrical framework; oil return holes are uniformly distributed on the cylindrical framework; the outer sides of the upper end cover and the lower end cover are respectively sleeved with a fixing ring, a plurality of impellers are distributed on the surface of the fixing ring at equal annular distance, and the impellers are positioned on the opposite inner sides of the oil return inlet and the oil return outlet; the lower side end cover is coaxially and fixedly connected with a lower bearing rod and is rotatably connected with the inner bottom surface of the oil return cavity through the lower bearing rod.
Preferably, the inner side of the second oil inlet pipe cavity corresponding to the upper oil inlet pipe orifice is fixedly provided with an upper baffle ring, the upper baffle ring radially penetrates through a first oil inlet ring groove, the input end of the first oil inlet ring groove is communicated with the upper oil inlet pipe orifice, and the output end of the first oil inlet ring groove is movably communicated with the inner cavity of the second oil inlet pipe cavity.
Preferably, the telescopic piece comprises a sleeve fixedly arranged on the inner bottom surface of the second oil inlet pipe cavity, a telescopic rod is connected in the sleeve in a sliding mode, and a spring is arranged between the telescopic rod and the sleeve; the top end of the telescopic rod is coaxially and fixedly connected with an upper baffle, the outer edge of the upper baffle is flanged and provided with a sealing ring, and the sealing ring is movably contacted with a first oil inlet ring groove.
Preferably, the outer top end of the second oil inlet pipe cavity is coaxially and fixedly connected with a first oil inlet pipe cavity, the top surface of the first oil inlet pipe cavity is provided with a sealing plate, and the bottom surface of the first oil inlet pipe cavity is provided with a lower oil inlet which is communicated with an upper oil inlet pipe through the lower oil inlet; the first oil inlet pipe cavity outer wall evenly distributed side oil inlet hole, the shrouding top surface coaxial solid connect the upper bearing pole to rotate through the interior top surface of upper bearing pole and oil return cavity and connect.
Compared with the prior art, the utility model discloses the beneficial effect that can reach is: the utility model has the advantages that the impeller which can be impacted by hydraulic oil is arranged on the upper end cover and the lower end cover, so that the oil return filter element main body can rotate in the oil return chamber, and impurity particles in the oil return filter element main body are driven by centrifugal force to return the oil filter element main body, thereby avoiding impurities from reaching a hydraulic system; further, when filter screen and oil gallery take place to block up in the oil return filter core main part, the extensible member on it will be compressed by hydraulic oil for oil return filter core main part north link up again, make hydraulic oil can go into oil return filter core main part again through first income oil ring groove, second income oil ring groove and third income oil ring groove.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic connection diagram of the first oil inlet pipe cavity, the second oil inlet pipe cavity and the oil return chamber according to the present invention;
fig. 3 is a schematic view of the top structure of the upper end cover of the oil return filter element main body;
wherein: 1. an oil return chamber; 2. an oil return filter element main body; 3. a first oil inlet lumen; 4. a second oil inlet lumen; 5. an upper bearing rod; 6. a lower bearing rod; 7. a telescoping member; 11. an oil return inlet; 12. an oil return outlet; 21. An end cap; 22. a cylindrical framework; 23. filtering with a screen; 31. closing the plate; 32. a side oil inlet hole; 33. a lower oil inlet; 41. An upper oil inlet pipe orifice; 43. an upper baffle ring; 44. a first oil inlet ring groove; 45. a second oil inlet ring groove; 71. an upper baffle plate; 72. a sealing ring; 73. a telescopic rod; 74. a sleeve; 75. a spring; 211. a fixing ring; 212. an impeller; 213. a third oil inlet ring groove; 221. and an oil return hole.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the functions of the invention easy to understand, the invention is further explained below with reference to the specific embodiments, but the following embodiments are only the preferred embodiments of the invention, not all. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.
Embodiment 1, please refer to fig. 1 to 3, the utility model provides an oil return filter element for engineering machinery, which includes an oil return chamber 1 and an oil return filter element main body 2, wherein the oil return filter element main body 2 is axially and rotatably connected to an inner cavity of the oil return chamber 1; the two outer sides of the oil return chamber 1 are respectively communicated with an oil return inlet 11 and an oil return outlet 12, and the oil return filter element main body 2 is rotatably arranged between the oil return inlet 11 and the oil return outlet 12; the outer top surface of the oil return filter element main body 2 is fixedly connected with a second oil inlet pipe cavity 4, the top surface of the second oil inlet pipe cavity 4 penetrates through an upper oil inlet pipe orifice 41, an upper oil inlet pipe orifice 41 and the inner bottom end surface of the second oil inlet pipe cavity 4 are fixedly connected with a telescopic piece 7, and the telescopic piece 7 and the upper oil inlet pipe orifice 41 are movably sealed; the inner bottom end of the upper oil inlet pipe orifice 41 penetrates through the second oil inlet ring groove 45, the upper top end of the oil return filter element main body 2 penetrates through the third oil inlet ring groove 213, and the second oil inlet pipe cavity 4 is communicated with the inner cavity of the oil return filter element main body 2 through the second oil inlet ring groove 45 and the third oil inlet ring groove 213 which correspond up and down.
The oil return filter element main body 2 comprises end covers 21 which correspond to each other up and down, a cylindrical framework 22 is fixedly arranged between the upper end cover 21 and the lower end cover 21, and a filter screen 23 is also fixedly arranged between the upper end cover 21 and the lower end cover 21 which correspond to the cylindrical framework; oil return holes 221 are uniformly distributed on the cylindrical framework 22; the outer sides of the upper end cover 21 and the lower end cover 21 are respectively sleeved with a fixing ring 211, a plurality of impellers 212 are distributed on the surface of the fixing ring 211 at equal annular intervals, and the impellers 212 are positioned on the opposite inner sides of the oil return inlet 11 and the oil return outlet 12; the lower side end cover 21 is coaxially and fixedly connected with a lower bearing rod 6 and is rotationally connected with the inner bottom surface of the oil return cavity 1 through the lower bearing rod 6; the impeller 212 rotates through the impact oil return formed between the oil return inlet 11 and the oil return outlet 12, so that the oil return filter element main body 2 with the upper bearing rod 5 and the lower bearing rod 6 rotates in the oil return chamber 1, and small particle impurities are further far away from the oil return filter element main body 2 under the action of centrifugal force, and the oil return filter element main body 2 is prevented from entering a hydraulic system again.
An upper baffle ring 43 is fixedly arranged on the inner side of the second oil inlet pipe cavity 4 corresponding to the upper oil inlet pipe orifice 41, a first oil inlet ring groove 44 penetrates through the upper baffle ring 43 in the radial direction, the input end of the first oil inlet ring groove 44 is communicated with the upper oil inlet pipe orifice 41, and the output end is movably communicated with the inner cavity of the second oil inlet pipe cavity 4; the telescopic part 7 comprises a sleeve 74 fixedly arranged on the inner bottom surface of the second oil inlet pipe cavity 4, a telescopic rod 73 is connected in the sleeve 74 in a sliding mode, and a spring 75 is arranged between the telescopic rod 73 and the sleeve 74; the top end of the telescopic rod 73 is coaxially and fixedly connected with an upper baffle 71, the outer edge of the upper baffle 71 is flanged and provided with a sealing ring 72, and the sealing ring 72 is movably contacted with the first oil inlet ring groove 44; the outer top end of the second oil inlet pipe cavity 4 is coaxially and fixedly connected with the first oil inlet pipe cavity 3, the top surface of the first oil inlet pipe cavity 3 is provided with a sealing plate 31, the bottom surface is provided with a lower oil inlet 33, and the lower oil inlet 33 is communicated with an upper oil inlet pipe orifice 41; the outer wall of the first oil inlet pipe cavity 3 is uniformly provided with side oil inlet holes 32, the top surface of the sealing plate 31 is coaxially and fixedly connected with an upper bearing rod 5, and the upper bearing rod 5 is rotatably connected with the inner top surface of the oil return cavity 1; through the setting of extensible member 7 for can realize the movable seal between first income oil ring groove 44 and the second income oil ring groove 45, make oil return filter core main part 2 when oil return hole 221 and filter screen 23 block up because of impurity, can get into the inner chamber of oil return filter core main part 2 so far from first income oil ring groove 44 and the second income oil ring groove 45 of intercommunication.
The specific principle is as follows: the utility model discloses during the use, when hydraulic oil gets into oil return cavity 1 from oil return entry 11, because of the impact of hydraulic oil between oil return entry 11 and oil return export 12, make impeller 212 take place the atress, impeller 212 drives the cylindric skeleton 22 and the filter screen 23 rotation that its fixed cover was established through end cover 21, thereby make oil return filter core main part 2 rotate between upper bearing rod 5 and lower bearing rod 6, when oil return filter core main part 2 rotated, the impurity that adheres to in the hydraulic oil in it received centrifugal force, keep away from oil return filter core main part 2, thereby avoid impurity to enter into the hydraulic system of engineering machine tool through oil return filter core main part 2; further, when filter screen 23 and oil return hole 221 blockked up on oil return filter core main part 2, the inside unable oil return of oil return filter core main part 2, cause oil return cavity 1 and the inside pressure differential that forms of oil return filter core main part 2, thereby make the hydraulic oil that gets into from first oil feed lumen 3 upside inlet port 32 to produce pressure to extensible member 7, concretely, go up baffle 71 and receive pressure, make it driven by telescopic link 73 and move down, thereby let seal ring 72 remove from first income oil ring groove 44, make hydraulic oil enter into the oil lumen from first income oil ring groove 44, again enter into oil return filter core main part 2 from corresponding second income oil ring groove 45 and third income oil ring groove 213 in proper order, thereby realize the oil return.
The utility model has the advantages that the impeller which can be impacted by hydraulic oil is arranged on the upper end cover and the lower end cover, so that the oil return filter element main body can rotate in the oil return chamber, and impurity particles in the oil return filter element main body are driven by centrifugal force to return the oil filter element main body, thereby avoiding impurities from reaching a hydraulic system; further, when filter screen and oil gallery take place to block up in the oil return filter core main part, the extensible member on it will be compressed by hydraulic oil for oil return filter core main part north link up again, make hydraulic oil can go into oil return filter core main part again through first income oil ring groove, second income oil ring groove and third income oil ring groove.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides an engineering machine tool oil return filter core, includes oil return cavity (1) and oil return filter core main part (2), its characterized in that: the oil return filter element main body (2) is axially and rotatably connected with an inner cavity of the oil return chamber (1); the outer two sides of the oil return chamber (1) are respectively communicated with an oil return inlet (11) and an oil return outlet (12), and the oil return filter element main body (2) is rotatably arranged between the oil return inlet (11) and the oil return outlet (12); the oil return filter element is characterized in that the outer top surface of the oil return filter element main body (2) is fixedly connected with a second oil inlet pipe cavity (4), the top surface of the second oil inlet pipe cavity (4) penetrates through an upper oil inlet pipe orifice (41), the upper oil inlet pipe orifice (41) and the inner bottom end surface of the second oil inlet pipe cavity (4) are fixedly connected with a telescopic piece (7), and the telescopic piece (7) and the upper oil inlet pipe orifice (41) are movably sealed; go up oil feed mouth of pipe (41) bottom end and link up second income oil ring groove (45), oil return filter core main part (2) are gone up the top and are link up third income oil ring groove (213), second oil feed lumen (4) are through second income oil ring groove (45) and third income oil ring groove (213) that correspond from top to bottom and the inner chamber intercommunication of oil return filter core main part (2).
2. The engineering machinery oil return filter element of claim 1, wherein: the oil return filter element main body (2) comprises end covers (21) which correspond to each other up and down, a cylindrical framework (22) is fixedly arranged between the upper end cover and the lower end cover (21), and a filter screen (23) is fixedly arranged between the upper end cover and the lower end cover (21) which correspond to the cylindrical framework; oil return holes (221) are uniformly distributed on the cylindrical framework (22); the outer sides of the upper end cover and the lower end cover (21) are respectively sleeved with a fixing ring (211), a plurality of impellers (212) are distributed on the surface of the fixing ring (211) at equal annular intervals, and the impellers (212) are positioned on the opposite inner sides of the oil return inlet (11) and the oil return outlet (12); the lower side the coaxial fixedly connected with lower bearing rod (6) of end cover (21) to through lower bearing rod (6) and oil return cavity (1) interior bottom surface rotation connection.
3. The engineering machinery oil return filter element of claim 1, wherein: go up the inboard fixed fender ring (43) that sets up of second oil feed lumen (4) that oil feed mouth of pipe (41) corresponds, it has first income oil annular (44) to go up fender ring (43) in radially running through, oil feed mouth of pipe (41) are gone up in the input intercommunication of first income oil annular (44), the inner chamber of output activity intercommunication second oil feed lumen (4).
4. The engineering machinery oil return filter element of claim 1, wherein: the telescopic piece (7) comprises a sleeve (74) fixedly arranged on the inner bottom surface of the second oil inlet pipe cavity (4), a telescopic rod (73) is connected in the sleeve (74) in a sliding mode, and a spring (75) is arranged between the telescopic rod (73) and the sleeve (74); telescopic link (73) top is coaxial to be connect firmly overhead gage (71), overhead gage (71) outer fringe turn-ups sets up seals ring (72), seal ring (72) the first income oil ring groove of movable contact (44).
5. The engineering machinery oil return filter element of claim 1, wherein: the outer top end of the second oil inlet pipe cavity (4) is coaxially and fixedly connected with a first oil inlet pipe cavity (3), the top surface of the first oil inlet pipe cavity (3) is provided with a sealing plate (31), the bottom surface is provided with a lower oil inlet (33), and the lower oil inlet (33) is communicated with an upper oil inlet pipe opening (41); the oil inlet structure is characterized in that side oil inlet holes (32) are evenly distributed in the outer wall of the first oil inlet pipe cavity (3), the top surface of the sealing plate (31) is coaxially and fixedly connected with an upper bearing rod (5) and is rotatably connected with the inner top surface of the oil return cavity (1) through the upper bearing rod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921924746.6U CN211314733U (en) | 2019-11-09 | 2019-11-09 | Oil return filter element of engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921924746.6U CN211314733U (en) | 2019-11-09 | 2019-11-09 | Oil return filter element of engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211314733U true CN211314733U (en) | 2020-08-21 |
Family
ID=72066843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921924746.6U Expired - Fee Related CN211314733U (en) | 2019-11-09 | 2019-11-09 | Oil return filter element of engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211314733U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114632743A (en) * | 2022-03-18 | 2022-06-17 | 深圳远荣智能制造股份有限公司 | New energy automobile driving motor sprays test equipment |
-
2019
- 2019-11-09 CN CN201921924746.6U patent/CN211314733U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114632743A (en) * | 2022-03-18 | 2022-06-17 | 深圳远荣智能制造股份有限公司 | New energy automobile driving motor sprays test equipment |
| CN114632743B (en) * | 2022-03-18 | 2023-01-03 | 深圳远荣智能制造股份有限公司 | New energy automobile driving motor sprays test equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211314733U (en) | Oil return filter element of engineering machinery | |
| CN107321439B (en) | Milling structure of silt cleaning device | |
| CN210127846U (en) | Filter equipment is adopted in petroleum engineering development | |
| CN204672449U (en) | A kind of energy-efficient albumen special horizontal spiral discharge sedimentation centrifuge | |
| CN203248370U (en) | Novel high-low pressure separating and sealing type sinking pump | |
| CN201342377Y (en) | Solid-liquid separating machine | |
| CN108757088B (en) | Lubricating oil tank for dry lubrication system | |
| CN205760109U (en) | Two-stage Swirling flow sand-removing screw extrusion sand discharge apparatus | |
| CN215312819U (en) | Vertical sand mill with double separation material channels | |
| CN205663475U (en) | Oil cleaner with guide plate | |
| CN211616159U (en) | Water collecting device for water drill | |
| CN203244857U (en) | Falling-off-prevention filter screen online rotating dust removing device | |
| CN208702399U (en) | Vertical centrifugal desander | |
| CN109806649A (en) | A kind of coating material production pocket type centrifugal filter | |
| GB2590822A (en) | Filter element having intermittent coupling with housing cover | |
| CN203400782U (en) | Horizontal centrifuge shell | |
| CN208212644U (en) | A kind of self-cleaning filter | |
| CN2832307Y (en) | Centrifuge bottom flow spray nozzle | |
| CN205516963U (en) | Card hole sealing washer of sack cleaner | |
| CN201779259U (en) | Air seal component | |
| CN216137435U (en) | Cyclone separator with anti-blocking function for powder coating preparation | |
| CN104923014A (en) | Novel cyclone dust remover | |
| CN205887528U (en) | Rotation type belt cleaning device for aluminium scrap | |
| CN220824528U (en) | Ball valve filter capable of preventing solid powder from being blocked | |
| CN204767674U (en) | Solid -liquid separation ware is used in microbial inoculant production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210125 Address after: 330000 No.98 Zhongmu Road, Xiaolan Economic Development Zone, Nanchang County, Nanchang City, Jiangxi Province Patentee after: Nanchang Bairui Industrial Co.,Ltd. Address before: 330000 No.98 Zhongmu Road, Xiaolan Economic Development Zone, Nanchang County, Nanchang City, Jiangxi Province Patentee before: Jiangxi Zhongrui Construction Machinery Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200821 |