CN214513192U - Solvent dewaxing device for lubricating oil production - Google Patents
Solvent dewaxing device for lubricating oil production Download PDFInfo
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- CN214513192U CN214513192U CN202022252467.9U CN202022252467U CN214513192U CN 214513192 U CN214513192 U CN 214513192U CN 202022252467 U CN202022252467 U CN 202022252467U CN 214513192 U CN214513192 U CN 214513192U
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- box body
- side wall
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- interception
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- 239000010687 lubricating oil Substances 0.000 title claims abstract description 22
- 239000002904 solvent Substances 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000001914 filtration Methods 0.000 claims abstract description 37
- 239000003921 oil Substances 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 238000002425 crystallisation Methods 0.000 abstract description 5
- 230000008025 crystallization Effects 0.000 abstract description 5
- 239000000314 lubricant Substances 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 2
- 239000001993 wax Substances 0.000 description 10
- 239000013078 crystal Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000007670 refining Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000010779 crude oil Substances 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000002199 base oil Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Filtration Of Liquid (AREA)
Abstract
The utility model discloses a solvent dewaxing device for lubricant production, include: a base; the first filtering structure is fixedly arranged on the upper wall of the base and is positioned on the rear side of the central line of the left end; a second filter structure removably disposed within the first filter structure; the utility model relates to the technical field of lubricating oil dewaxing, which comprises a base, a first filtering structure, a second filtering structure, a third filtering structure and a third filtering net, wherein the first filtering structure is fixedly arranged on the upper wall of the base and positioned in front of a central line at the left end; after the oil filtered by the interception plate enters the first box body, the oil is intercepted again by the second filtering structure and is filtered again; the design concept is ingenious, the whole structure is simple, the cost is low, solid and liquid can be completely separated through twice filtration, and wax crystallization is convenient for clean discharge.
Description
Technical Field
The utility model relates to a lubricating oil dewaxing technical field specifically is a solvent dewaxing device for lubricant production.
Background
Solvent dewaxing is an important method for refining petroleum products, and the process comprises the steps of diluting and freezing a lubricating oil raw material by using a solvent to crystallize and separate out wax in the lubricating oil raw material so as to reduce the freezing point of the lubricating oil; lubricating oil (base oil) and paraffin wax can be prepared from lubricating oil fractions obtained by industrially distilling a waxy crude oil with crude oil by solvent refining, solvent dewaxing and hydrorefining (or clay refining);
in the production of lubricating oil, dewaxing needs to be carried out, but the traditional dewaxing method has low solid-liquid separation efficiency after the dewaxing method is solidified into wax crystals, the whole equipment is complicated, and the crystals are solidified into different sizes, so the separation is not clean, and therefore, a solvent dewaxing device for the production of lubricating oil is designed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a solvent dewaxing device for lubricant production to the solution is convenient for dewax and the complete problem of dewaxing.
In order to achieve the above object, the utility model provides a following technical scheme: a solvent dewaxing device for lubricating oil production, comprising:
a base;
the first filtering structure is fixedly arranged on the upper wall of the base and is positioned on the rear side of the central line of the left end;
a second filter structure removably disposed within the first filter structure;
the third filtering structure is fixedly arranged on the upper wall of the base and is positioned on the front side of the central line of the left end;
further comprising: the oil pump is fixedly arranged on the upper wall of the base and positioned on the right side of the central line, the electromagnetic valve is fixedly arranged on the upper wall of the base and positioned on the rear side of the oil pump, and the inlet end of the electromagnetic valve is connected with the liquid inlet end of the oil pump through a pipeline;
the first filter structure comprising: the device comprises a first box body, a pair of shaft brackets with the same structure, a shaft lever, an impeller, three pairs of interception plates with the same structure, three pairs of first filter screens with the same structure, a supporting plate, a motor and a first valve;
the first box body is of a rectangular box body structure, a liquid inlet is formed in the center of the upper wall of the first box body, a rotary opening is formed in the position, close to the center of the top end, of the left side wall of the first box body, the bottom end of the first box body is fixedly welded to the upper wall of the base and located on the rear side of the center line of the left end, a T-shaped limiting groove is clamped below the rotary opening of the first box body, a socket is formed in the rear side wall of the first box body and located between the limiting groove and the bottom end of the rotary opening, one end of each shaft bracket is fixedly welded to the left side wall and the right side wall of the first box body respectively and is located on the center line of the rotary opening symmetrically, two ends of each shaft rod movably penetrate through the other end of each shaft bracket and are located on the center of the shaft bracket respectively, the impeller is fixedly sleeved on each shaft rod and located between the pair of shaft brackets, the three pairs of the interception plates are of rectangular structures, and first interception grooves are formed in the center of the upper wall of the shaft brackets, three pairs of the interception plates are respectively and equidistantly arranged at one end thereof, are sequentially and anticlockwise fixedly welded on the side wall of the impeller and can movably penetrate through the rotary opening, three pairs of the first filter screens are respectively and fixedly embedded in the lower walls of the three pairs of the interception plates and are positioned at the central part, one end of the supporting plate is fixedly welded on the right side wall of the first box body and is positioned close to one shaft bracket part, the motor is fixedly arranged on the supporting plate, the driving end of the motor is fixedly connected to one end of the shaft lever, one end of the first valve is fixedly embedded on the right side wall of the bottom end of the first box body, and the other end of the first valve is connected with one end of the electromagnetic valve through a pipeline.
Preferably, the second filter structure includes: the filter comprises a pair of baffles with the same structure, a pair of bearing plates with the same structure, a first filter frame and a second filter screen;
one end of each baffle is fixedly welded on the left side wall and the right side wall in the first box body respectively, the baffles are symmetrical and located below the switching port respectively, the bearing plates are fixedly welded on the left side wall and the right side wall in the first box body respectively and located below the two ends of the socket respectively, one end of the first filter frame is movably inserted into the socket and located on the pair of bearing plates, a second interception groove is formed in the center of one end of the first filter frame, and the second filter screen is fixedly embedded in the lower wall of the second interception groove of the first filter frame.
Preferably, the third filter structure includes: the second box body, the second filter frame, the third filter screen and the second valve;
the second box body is of a rectangular box body structure without an upper wall, the upper walls of the front side wall and the rear side wall of the second box body are respectively provided with a fit groove with different sizes along the central part, the second box body is fixedly arranged on the upper wall of the base and positioned in the front side of the central line of the left end, the rear side wall of the second box body is attached to the front wall of the first box body, the central part of the upper wall of the second filter frame is provided with a third interception groove, the two sides of one end of the second filter frame are respectively provided with a rotating rod with the same structure, one end of the second filter frame is movably embedded in the limiting groove of the front wall of the first box body, the other end of the second filter frame is movably embedded in the fit groove along the front wall of the second box body, the third filter screen is fixedly embedded in the lower wall of the third interception groove of the second filter frame, one end of the second valve is fixedly embedded in the right side wall of the second box body and positioned at the bottom end of the second valve, and the other end of the second valve is connected with a pipeline at the other end of the second filter frame.
Preferably, the second filter frame is of a cross-shaped structure.
Preferably, the baffles are all in a right-angle trapezoidal structure, and the upper walls of the baffles are all inclined wall surfaces.
Preferably, a handle is fixedly installed at the center of the side wall of the other end of the first filter frame.
Compared with the prior art, the beneficial effects of the utility model are that: according to the solvent dewaxing device for lubricating oil production, crystallized lubricating oil is discharged into the first box body in the first filtering structure, and the impeller is driven by the motor to rotate anticlockwise, so that a plurality of retaining plates sequentially contact with the entering oil for filtering, inner wax crystals are discharged and discharged into the second box body of the third filtering structure, and the crystals are retained and cleaned by secondary filtering through the third filter screen; after the oil filtered by the interception plate enters the first box body, the oil is intercepted again through the second filtering structure and is filtered again through the guide of the baffle plate, and finally the oil after filtering and separation can be pumped out through the driving liquid pump; the design concept is ingenious, the whole structure is simple, the cost is low, solid and liquid can be completely separated through twice filtration, and wax crystallization is convenient for clean discharge.
Drawings
Fig. 1 is a schematic view of an assembly structure of the present invention;
fig. 2 is a schematic view of the split structure of the present invention;
fig. 3 is a schematic diagram of a partially enlarged structure a of the present invention.
In the figure: 1. the base, 2, first filtration, 21, first box, 22, pedestal, 23, axostylus axostyle, 24, impeller, 25, trapped plate, 26, first filter screen, 27, layer board, 28, motor, 29, first valve, 3, second filtration, 31, baffle, 32, loading board, 33, first filter frame, 34, second filter screen, 4, third filtration, 41, second box, 42, second filter frame, 43, third filter screen, 44, second valve, 5, the oil pump, 6, the solenoid valve, 7, the handle.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a solvent dewaxing device for lubricating oil production, comprising: a base 1; the first filtering structure 2 is fixedly arranged on the upper wall of the base 1 and is positioned at the rear side of the central line of the left end; a second filtering structure 3 removably housed inside the first filtering structure 2; the third filtering structure 4 is fixedly arranged on the upper wall of the base 1 and is positioned on the front side of the central line of the left end; further comprising: the oil pump 5 is fixedly arranged on the upper wall of the base 1 and positioned on the right side of the central line, the electromagnetic valve 6 is fixedly arranged on the upper wall of the base 1 and positioned on the rear side of the oil pump 5, and the inlet end of the electromagnetic valve is connected with the liquid inlet end of the oil pump 5 through a pipeline; a first filter structure 2 comprising: the device comprises a first box body 21, a pair of shaft brackets 22 with the same structure, a shaft rod 23, an impeller 24, three pairs of retaining plates 25 with the same structure, three pairs of first filter screens 26 with the same structure, a supporting plate 27, a motor 28 and a first valve 29; the first box 21 is a rectangular box structure, a liquid inlet is arranged at the central position of the upper wall of the first box 21, a rotary opening is arranged at the position of the left side wall of the first box, which is close to the central position of the top end of the first box, the bottom end of the first box 21 is fixedly welded on the upper wall of the base 1 and is positioned at the rear side of the central line of the left end, a T-shaped limiting groove is clamped below the rotary opening of the first box 21, a socket is arranged on the rear side wall of the first box, which is positioned between the limiting groove and the bottom end of the rotary opening, one end of a pair of shaft brackets 22 is respectively fixedly welded on the left side wall and the right side wall of the first box 21 and is respectively positioned on the central line of the rotary opening in mutual symmetry, two ends of a shaft lever 23 respectively and movably penetrate through the other end of the shaft brackets 22 and are respectively positioned at the central position, an impeller 24 is fixedly sleeved on the shaft lever 23 and is positioned between the pair of shaft brackets 22, three pairs of interception plates 25 are both rectangular structures, the central position of the upper wall of the interception plates are respectively provided with a first interception groove, one end of the three pairs of interception plates 25 are respectively equal circumferential distance, the three pairs of first filter screens 26 are fixedly embedded in the lower walls of the three pairs of retaining plates 25 and are positioned at the central part, one end of the supporting plate 27 is fixedly welded on the right side wall of the first box 21 and is positioned at a position close to one of the shaft brackets 22, the motor 28 is fixedly arranged on the supporting plate 27, the driving end of the motor is fixedly connected to one end of the shaft rod 23, one end of the first valve 29 is fixedly embedded on the right side wall of the bottom end of the first box 21, and the other end of the first valve is connected with one end of the electromagnetic valve 6 through a pipeline; the oil with wax crystals can be filtered initially by the first filter structure 2 and the wax crystals can be discharged.
The following electric devices have the following types and functions:
a motor: it is prior art, as long as the motor that is applicable to this scheme all can use.
An oil pump: it is prior art, as long as the oil pump that is applicable to this scheme all can use.
Preferably, the second filter structure 3 further comprises: a pair of baffles 31 with the same structure, a pair of bearing plates 32 with the same structure, a first filter rack 33 and a second filter screen 34;
one end of each baffle plate 31 is fixedly welded on the left side wall and the right side wall of the first box 21, the baffles are symmetrical and located below the transfer port, the bearing plates 32 are fixedly welded on the left side wall and the right side wall of the first box 21 and located below the two ends of the socket, one end of the first filter frame 33 is movably inserted into the socket and located on the bearing plates 32, a second interception groove is formed in the center of one end of the first filter frame 33, and the second filter screen 34 is fixedly embedded in the lower wall of the second interception groove of the first filter frame 33.
Preferably, the third filter structure 4 further comprises: a second box 41, a second filter frame 42, a third filter 43, and a second valve 44;
the second box 41 is a rectangular box structure without an upper wall, the upper walls of the front and rear side walls of the second box are respectively provided with a fit groove with different sizes along the central position, the second box 41 is fixedly arranged on the upper wall of the base 1 and positioned in front of the central line of the left end, the rear side wall of the second box is fitted on the front wall of the first box 21, the central position of the upper wall of the second filter rack 42 is provided with a third interception groove, the two sides of one end of the second filter rack are respectively provided with a rotating rod with the same structure, one end of the second filter rack 42 is movably embedded in the front wall limit groove of the first box 21, the other end of the second filter rack is movably embedded in the front wall of the second box 41 along the fit groove, a third filter screen 43 is fixedly embedded in the lower wall of the third interception groove of the second filter rack 42, one end of the second valve 44 is fixedly embedded in the right side wall of the second box 41 and positioned at the bottom end, and the other end of the second valve is connected with the electromagnetic valve 6 through a pipeline at the other end.
Preferably, the second filter frame 42 is a cross-shaped structure for designing and installing requirements.
Preferably, the baffle 31 is a right-angled trapezoid structure, and the upper wall of the baffle is an inclined wall surface, so as to guide the liquid.
Preferably, a handle 7 is fixedly installed at a central portion of a side wall of the other end of the first filter frame 33, so as to facilitate exerting force.
The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.
Example (b): as can be seen from fig. 1-3 of the specification, firstly, after the equipment is powered on, the lubricating oil liquid after wax crystallization enters the first filtering structure 2 through the liquid inlet, in the first box 21 on the base 1, the motor 28 on the supporting plate 27 drives the impeller 24 to rotate between the two shaft brackets 22 through the shaft rod 23, so as to drive the plurality of retaining plates 25 to rotate anticlockwise, so that the retaining plates 25 sequentially contact the oil without interruption, the oil is primarily filtered through the first filter screen 26, the wax crystallization inside is taken out along with the rotation of the retaining plates 25, and the wax crystallization is discharged into the second filter rack 42 in the third filtering structure 4, and the oil is discharged into the second box 41 after being filtered again through the third filter screen 43; the oil primarily filtered by the interception plate 25 falls down and is guided by the baffle 31 in the second filtering structure 3, then falls into the first filtering frame 33 in a centralized manner, is filtered for the second time by the second filtering net 34, intercepts crystals, can be pulled out of the first filtering frame 33 weighed by the bearing plate 32 by means of the force of the handle 7, and cleans wax crystals; the second filter frame 42 can also be disassembled by turning for cleaning; finally, the oil pump 5 is driven to pump out the dewaxed oil by controlling the opening of the solenoid valve 6 and the first and second valves 29 and 44.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation; meanwhile, unless otherwise explicitly specified and limited, the terms "fixedly welded", "movably embedded", "fixedly embedded", "movably inserted", "movably penetrated", and the like are to be broadly understood, and may be, for example, fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A solvent dewaxing device for lubricating oil production is characterized by comprising:
a base (1);
the first filtering structure (2) is fixedly arranged on the upper wall of the base (1) and is positioned on the rear side of the center line of the left end;
a second filtering structure (3) removably arranged inside the first filtering structure (2);
the third filtering structure (4) is fixedly arranged on the upper wall of the base (1) and is positioned on the front side of the center line of the left end;
further comprising: the oil pump (5) is fixedly arranged on the upper wall of the base (1) and positioned on the right side of the central line, the electromagnetic valve (6) is fixedly arranged on the upper wall of the base (1) and positioned on the rear side of the oil pump (5), and the inlet end of the electromagnetic valve is connected with the liquid inlet end of the oil pump (5) through a pipeline;
the first filtering structure (2) comprising: the device comprises a first box body (21), a pair of shaft brackets (22) with the same structure, a shaft rod (23), an impeller (24), three pairs of interception plates (25) with the same structure, three pairs of first filter screens (26) with the same structure, a supporting plate (27), a motor (28) and a first valve (29);
the first box body (21) is of a rectangular box body structure, a liquid inlet is formed in the center of the upper wall of the first box body, a rotating opening is formed in the position, close to the center of the top end, of the left side wall of the first box body, the bottom end of the first box body (21) is fixedly welded to the upper wall of the base (1) and located on the rear side of the center line of the left end, a T-shaped limiting groove is clamped below the rotating opening of the first box body (21), a socket is formed in the rear side wall of the first box body and located between the limiting groove and the bottom end of the rotating opening, one end of each shaft bracket (22) is fixedly welded to the left side wall and the right side wall of the first box body (21) respectively and is located on the center line of the rotating opening symmetrically, two ends of the shaft rod (23) respectively penetrate through the other ends of the shaft brackets (22) and are located at the center, the impeller (24) is fixedly sleeved on the shaft rod (23) and located between the pair of shaft brackets (22), the three pairs of the interception plates (25) are all of a rectangular structure, the center parts of the upper walls of the three pairs of the interception plates are respectively provided with a first interception groove, one ends of the three pairs of the interception plates (25) are respectively equal in circumferential distance and are sequentially and fixedly welded on the side wall of the impeller (24) in an anticlockwise mode, and can movably penetrate through the rotary opening, three pairs of first filter screens (26) are respectively and fixedly embedded in the lower walls of the three pairs of interception plates (25), and is positioned at the central part, one end of the supporting plate (27) is fixedly welded on the right side wall of the first box body (21), and is positioned at a position close to one of the shaft brackets (22), the motor (28) is fixedly arranged on the supporting plate (27), and the driving end of the first valve (29) is fixedly connected to one end of the shaft lever (23), one end of the first valve is fixedly embedded on the right side wall of the bottom end of the first box body (21), and the other end of the first valve is connected with one end of the electromagnetic valve (6) through a pipeline.
2. The solvent dewaxing apparatus for producing lubricating oil of claim 1, wherein: -said second filtering structure (3) comprising: a pair of baffles (31) with the same structure, a pair of bearing plates (32) with the same structure, a first filter rack (33) and a second filter screen (34);
one end of each baffle (31) is fixedly welded on the left side wall and the right side wall of the first box body (21) respectively, the baffles are symmetrical and located below the switching port respectively, the bearing plates (32) are fixedly welded on the left side wall and the right side wall of the first box body (21) respectively and located below the two ends of the socket respectively, one end of each first filter frame (33) is movably inserted into the socket and located on the corresponding bearing plates (32), a second interception groove is formed in the center of one end of each first filter frame, and the second filter screen (34) is fixedly embedded into the lower wall of the second interception groove of the first filter frame (33).
3. The solvent dewaxing apparatus for producing lubricating oil of claim 1, wherein: -said third filtering structure (4) comprising: a second box body (41), a second filter rack (42), a third filter screen (43) and a second valve (44);
the second box body (41) is of a rectangular box body structure without an upper wall, the upper walls of the front side wall and the rear side wall of the second box body are respectively provided with a fit groove with different sizes along the central position, the second box body (41) is fixedly arranged on the upper wall of the base (1) and is positioned on the front side of the central line of the left end, the rear side wall of the second box body is attached to the front wall of the first box body (21), the central position of the upper wall of the second filter frame (42) is provided with a third interception groove, two sides of one end of the second filter frame are respectively provided with a rotating rod with the same structure, one end of the second filter frame (42) is movably embedded in the front wall limiting groove of the first box body (21), the other end of the second filter frame (42) is movably embedded in the fit groove along the front wall of the second box body (41), the third filter screen (43) is fixedly embedded in the lower wall of the third interception groove of the second filter frame (42), one end of the second valve (44) is fixedly embedded in the right side wall of the second box body (41), and is positioned at the bottom end, and the other end of the bottom end is connected with the pipeline at the other end of the electromagnetic valve (6).
4. The solvent dewaxing apparatus for producing lubricating oil of claim 3, wherein: the second filter frame (42) is of a cross-shaped structure.
5. The solvent dewaxing apparatus for producing lubricating oil of claim 2, wherein: the baffle (31) is of a right-angle trapezoidal structure, and the upper wall of the baffle is an inclined wall surface.
6. The solvent dewaxing apparatus for producing lubricating oil of claim 2, wherein: a handle (7) is fixedly arranged at the center of the side wall of the other end of the first filter frame (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022252467.9U CN214513192U (en) | 2020-10-12 | 2020-10-12 | Solvent dewaxing device for lubricating oil production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022252467.9U CN214513192U (en) | 2020-10-12 | 2020-10-12 | Solvent dewaxing device for lubricating oil production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214513192U true CN214513192U (en) | 2021-10-29 |
Family
ID=78230249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022252467.9U Expired - Fee Related CN214513192U (en) | 2020-10-12 | 2020-10-12 | Solvent dewaxing device for lubricating oil production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214513192U (en) |
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2020
- 2020-10-12 CN CN202022252467.9U patent/CN214513192U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211227 Address after: 201799 east side of building 4, No. 1588, Songfu Road, Qingpu District, Shanghai Patentee after: Fuka industry (Shanghai) Co.,Ltd. Address before: 474265 Tianjiazhuang, Yancha village, anziying Township, Zhenping county, Nanyang City, Henan Province Patentee before: Wang Qishen |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211029 |
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| CF01 | Termination of patent right due to non-payment of annual fee |