CN109647745B - Portable waste oil stain collecting device for maintenance of road maintenance machinery - Google Patents
Portable waste oil stain collecting device for maintenance of road maintenance machinery Download PDFInfo
- Publication number
- CN109647745B CN109647745B CN201811303154.2A CN201811303154A CN109647745B CN 109647745 B CN109647745 B CN 109647745B CN 201811303154 A CN201811303154 A CN 201811303154A CN 109647745 B CN109647745 B CN 109647745B
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- Prior art keywords
- seat
- oil
- extrusion
- collecting device
- maintenance
- Prior art date
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- 239000002699 waste material Substances 0.000 title claims abstract description 21
- 238000012423 maintenance Methods 0.000 title claims description 25
- 238000001125 extrusion Methods 0.000 claims abstract description 35
- 238000010521 absorption reaction Methods 0.000 claims abstract description 34
- 238000003825 pressing Methods 0.000 claims abstract description 21
- 238000001914 filtration Methods 0.000 claims abstract description 19
- 230000006835 compression Effects 0.000 claims abstract description 6
- 238000007906 compression Methods 0.000 claims abstract description 6
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 239000012535 impurity Substances 0.000 abstract description 3
- 239000002893 slag Substances 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 5
- 208000032825 Ring chromosome 2 syndrome Diseases 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 208000034189 Sclerosis Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000003434 inspiratory effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/14—Wipes; Absorbent members, e.g. swabs or sponges
- B08B1/143—Wipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/03—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention provides a portable waste oil stain collecting device for maintaining road machinery, which comprises connecting threads, an extrusion filtering seat, a dripping hole, a pressing seat, a rear protruding platform structure and an oil outlet, wherein the extrusion filtering seat is provided with a plurality of connecting threads; the accommodating body is of a cylindrical cavity structure, a circle of compression ring with a convex structure surrounds the outer wall of the accommodating body, and a connecting seat structure is arranged at the end head of the accommodating body; the storage body and the connecting seat form a complete cylindrical cavity structure, the sponge has a better air absorption structure, an inner concave arc-shaped groove structure is adopted, the inner cavity footstock of the spiral jacking structure is an outer convex arc-shaped pressing block structure, the outer convex arc-shaped pressing block structure jacks and presses the inner concave groove structure of the sponge, better extrusion can be carried out on some oil in the sponge, a filter plate is installed in the extrusion filter seat, certain grain slag filtration can be carried out on the absorbed flood oil, the recovered oil impurities are less, and secondary application of other occasions of the oil is facilitated.
Description
Technical Field
The invention belongs to the technical field of waste oil collecting device structures, and particularly relates to a portable waste oil stain collecting device for maintaining road maintenance machinery.
Background
In the road construction process, can utilize various machinery to carry out processing such as material loading, dress soil, sclerosis to the road surface, need not to open large-scale machinery in this processing procedure, for example road roller, bull-dozer and pitch machinery etc. and these machines and equipments can break down in the use unavoidably, and the maintenance in-process can change various accessories, and when the accessory was changed, there was the greasy dirt to drip out, and these greasy dirt drips and can cause the pollution on the equipment surface.
Based on the description, the oil stain pollutants dropping on the mechanical equipment are mostly cleaned in a common cleaning cloth mode, then the cleaning cloth is put in other places of the mechanical equipment after being used, the pollution is also caused, the surrounding environment can be influenced after being discarded, and the waste oil is known to have the function of soaking the standard parts in rust, so that the recycling value is also achieved, and therefore the wiping collection device with the tank body structure is designed aiming at the recycling characteristic, and the practicability of the wiping collection device is improved.
Disclosure of Invention
In order to solve the technical problems, the invention provides a portable waste oil stain collecting device for maintenance of road maintenance machinery, which is used for solving the problem that oil stain pollutants dropping on mechanical equipment are cleaned in a common cleaning cloth mode, then the cleaning cloth is put in other places of the mechanical equipment after being used, has the same pollution property and can influence the surrounding environment after being discarded, and the waste oil also has the function of soaking standard parts in rust, so the waste oil also has recycling value, and if the waste oil stain collecting device is treated in such a way, the waste oil stain pollutants are wasted.
The invention relates to a portable waste oil stain collecting device for maintaining a road maintenance machine, which aims at achieving the following specific technical means:
the portable waste oil stain collecting device for maintaining the road machinery comprises a containing body, a pressing ring, a connecting seat, a separating ring, a collecting cabin, a hanging belt, connecting threads, an extrusion filtering seat, a dripping hole, a mounting ring, a filtering plate, an oil absorption sponge, a pressure bearing groove, a pressing seat, a rear protruding platform structure and an oil outlet; the accommodating body is of a cylindrical cavity structure, a circle of compression ring with a convex structure surrounds the outer wall of the accommodating body, and a connecting seat structure is arranged at the end head of the accommodating body; the oil stain collecting device comprises a storage body, a connecting seat, a separating ring, a connecting seat and a connecting seat, wherein the storage body and the connecting seat form a complete cylindrical cavity structure, the cylindrical cavity of the connecting seat is internally provided with the separating ring, the cylindrical cavity is divided into two chambers by the separating ring, and the inner chamber is an oil stain collecting cabin; the extrusion filtering seat is of a conical cavity structure, and an oil absorption sponge is arranged in a mounting ring at the end of the extrusion filtering seat; the pressure seat is in a cylindrical cavity structure, and the bottom surface of the cylindrical cavity is provided with a raised rear top protruding platform structure; the outer wall of the storage body is connected with a hanging and pulling belt in a hinged mode, and an oil outlet with a cap structure is arranged at the position, penetrating through the end face of the hanging and pulling belt.
Further: in the inner circle of connecting seat, in the inner circle of spacer ring, on the outer wall of extrusion filter seat to and all seted up connecting thread on the outer wall of pressure seat.
Further: the extrusion filter seat is a conical cavity structure, and a filter plate is arranged in the cavity of the extrusion filter seat.
Further: and a circle of dripping holes are formed in the extrusion filtering seat.
Further: the outer end face of the oil absorption sponge is provided with a bearing groove with an inwards concave arc-shaped face structure.
Further: the rear top protruding platform structure arranged on the inner surface of the cylindrical cavity of the pressing seat corresponds to the pressure bearing groove arranged on the oil absorption sponge.
Further: the connecting thread on the pressing seat is matched with the connecting thread arranged on the inner wall of the connecting seat.
Further: and the connecting thread on the extrusion filter seat is matched with the connecting thread in the inner ring of the separating ring.
Compared with the prior art, the invention has the following beneficial effects:
the oil absorption device provided by the invention is a composite tank structure, the tank structure has wiping absorption performance and is convenient to operate, the device can wipe and absorb oil leaked on a workbench by using a sponge body arranged at the front end in a hand pressing mode, the absorbed oil can be extruded into the tank body through a jacking structure matched on the device through threads to obtain absorption, the sponge has a better air absorption structure, an inwards concave arc-shaped groove structure is adopted, an inner cavity jacking seat of a spiral jacking structure is an outwards convex arc-shaped pressing block structure, and when the outwards convex arc-shaped pressing block structure is jacked on the inwards concave groove structure of the sponge, the oil absorbed in the sponge can be better extruded, and install the filter in the extrusion filter seat, can carry out certain granule sediment to the flood oil liquid of absorption and filter for the oil liquid impurity of retrieving is less, is convenient for other occasions of fluid reuse.
Drawings
Fig. 1 is an exploded view of the present invention.
Fig. 2 and fig. 3 are schematic views of the top structure of the container drawn from fig. 1 according to the present invention.
Fig. 4 is a schematic view of the internal structure of the connecting base of the present invention.
Fig. 5 is a schematic view of the internal structure of the extruded filter base of the present invention.
Fig. 6 is a schematic view of the structure of the press seat of the present invention.
Fig. 7 is a schematic view of the inner structure of the connecting base of the present invention after being cut open.
Fig. 8 is a schematic view of the internal arc-shaped groove structure of the oil absorption sponge of the invention after being broken.
Fig. 9 is a structural diagram of the rear top boss of the press seat of the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
the device comprises a storage body-1, a compression ring-2, a connecting seat-3, a separating ring-301, a collecting cabin-302, a hanging and pulling belt-4, a connecting thread-5, an extrusion filtering seat-6, a dripping hole-601, a mounting ring-602, a filtering plate-603, an oil absorption sponge-7, a pressure bearing groove-701, a pressing seat-8, a rear top protruding platform structure-801 and an oil outlet-9.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in figures 1 to 9:
the invention provides a portable waste oil stain collecting device for maintaining a road maintenance machine, which comprises: the oil filter comprises a containing body 1, a pressing ring 2, a connecting seat 3, a separating ring 301, a collecting cabin 302, a hanging and pulling belt 4, a connecting thread 5, an extrusion filter seat 6, a dripping hole 601, a mounting ring 602, a filter plate 603, an oil absorption sponge 7, a pressure bearing groove 701, a pressing seat 8, a rear protruding platform structure 801 and an oil outlet 9; the accommodating body 1 is of a cylindrical cavity structure, a circle of compression ring 2 with a convex structure surrounds the outer wall of the accommodating body, and a connecting seat 3 structure is arranged at the end of the accommodating body 1; the accommodating body 1 and the connecting seat 3 form a complete cylindrical cavity structure, a circle of separating ring 301 is arranged in the cylindrical cavity of the connecting seat 3, the cylindrical cavity is divided into two chambers by the separating ring 301, and the inner chamber is an oil stain collecting chamber 302; the extrusion filter seat 6 is in a conical cavity structure, and an oil absorption sponge 7 is arranged in a mounting ring 602 at the end of the extrusion filter seat; the pressure seat 8 is a cylindrical cavity structure, and the bottom surface of the cylindrical cavity is provided with a raised rear top boss structure 801; the outer wall of the storage body 1 is connected with a hanging and pulling belt 4 in a hinged mode, and an oil outlet 9 with a cap structure penetrates through the end face of the hanging and pulling belt 4.
Wherein: in the inner circle of connecting seat 3, in the inner circle of spacer ring 301, on the outer wall of extrusion filter seat 6 to and all seted up connecting thread 5 on the outer wall of pressure seat 8.
Wherein: the extrusion is crossed filter seat 6 and is the toper chamber structure, and filter 603 is installed to its intracavity, and filter 603 is used for carrying out certain filtration with the inspiratory fluid of oil absorption sponge 7, reduces the impurity content that gets into in the 6 under-deck fluid of filter seat, improves structural rationality.
Wherein: a circle of dripping holes 601 are formed in the extrusion filter seat 6, and oil entering the collection chamber 302 enters the collection chamber 302 through the dripping holes 601 to be finally collected.
Wherein: the outer end face of the oil absorption sponge 7 is provided with the bearing groove 701 with the concave arc-shaped surface structure, so that the oil absorption sponge 7 has a suction structural characteristic which is reasonable in structure and similar to a sucker structure, and when the oil absorption sponge 7 is used for wiping and sucking oil, the oil can more easily enter the oil absorption sponge 7 to be sucked.
Wherein: the protruding platform structure 801 in back top that the cylinder chamber inner face of pressure seat 8 was equipped with is corresponding with the bearing groove 701 that is equipped with on the oil absorption sponge 7, and when pressure seat 8 was internal-rotation through the screw, usable protruding platform structure 801 in back top pushed into the bearing groove 701 that is equipped with on the oil absorption sponge 7, makes the fluid of absorbing in the oil absorption sponge 7, under the effect of being stressed, gets into the extrusion and filters in the seat 6 for the final speed that gets into in the storage body 1 of fluid, further improves structural rationality.
Wherein: connecting thread 5 phase-match that sets up on connecting thread 5 on the pressure seat 8 and the connecting seat 3 inner wall presses seat 8 to pass through connecting thread 5 to be connected on connecting seat 3, presses seat 8 when rotatory on connecting seat 3, can produce the extrusion effect to oil absorption sponge 7.
Wherein: the connecting thread 5 on the extrusion filter seat 6 is matched with the connecting thread 5 in the inner ring of the separating ring 301, when the extrusion filter seat 6 is in threaded connection with the separating ring 301, the extrusion filter seat 6 is connected to the separating ring 301, and the extrusion filter seat 6 is located in the inner cavity of the connecting seat 3, as shown in fig. 4, a circle of leakage holes are uniformly distributed on the separating ring 301, so that oil liquid leaked from the filter seat 6 enters the accommodating body 1 through the leakage holes.
When in use: when the mechanical equipment is maintained, if oil stains drip on the mechanical equipment, the pressing seat 8 of the tank structure device can be rotationally taken out from the connecting seat 3, so that the oil absorption sponge 7 is exposed from the device, the device is held by hands, fingers press the pressing ring 2, the oil stains are wiped by the oil absorption sponge 7, a part of the oil stains can enter the extrusion filtering seat 6, certain filtering is carried out by the filtering plate 603 shown in figure 5 in the entering process, and oil finally enters the accommodating body 1 through the leak holes uniformly distributed on the separating ring 301 shown in figure 4 to be collected, because the outer end surface of the oil absorption sponge 7 is provided with the bearing groove 701 with the concave arc surface structure, the oil absorption sponge 7 forms a reasonable air suction structure characteristic similar to a sucker structure, so that when the oil absorption sponge 7 wipes the oil, the oil stains can more easily enter the oil absorption sponge 7 to be absorbed, after the oil wiping work is finished, the pressing base 8 can be screwed into the connecting base 3, and in the rotating installation process of the pressing base 8, the rear top boss structure 801 in the inner cavity of the pressing base 8 is extruded to the bearing groove 701, so that most of oil liquid absorbed in the oil absorption sponge 7 is extruded into the accommodating body 1 to be collected.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (7)
1. The portable collection device of old and useless greasy dirt of road maintenance mechanical maintenance usefulness, its characterized in that: the portable waste oil stain collecting device for maintaining the road maintenance machinery comprises a storage body (1), a compression ring (2), a connecting seat (3), a separating ring (301), a collecting cabin (302), a hanging pull belt (4), a connecting thread (5), an extrusion filtering seat (6), a dripping hole (601), a mounting ring (602), a filtering plate (603), an oil absorption sponge (7), a pressure bearing groove (701), a pressure seat (8), a rear top protruding platform structure (801) and an oil outlet (9); the accommodating body (1) is of a cylindrical cavity structure, a circle of compression ring (2) with a convex structure surrounds the outer wall of the accommodating body, and a connecting seat (3) structure is arranged at the end of the accommodating body (1); the oil stain collecting device is characterized in that the accommodating body (1) and the connecting seat (3) form a complete cylindrical cavity structure, a circle of separating ring (301) is arranged in the cylindrical cavity of the connecting seat (3), the cylindrical cavity is divided into two chambers by the separating ring (301), and the inner chamber is an oil stain collecting cabin (302); the extrusion filtering seat (6) is of a conical cavity structure, and an oil absorption sponge (7) is arranged in a mounting ring (602) at the end of the extrusion filtering seat; the pressing seat (8) is of a cylindrical cavity structure, and the bottom surface of the cylindrical cavity is provided with a protruded rear top protruding platform structure (801); the outer wall of the accommodating body (1) is connected with a hanging pull belt (4) in a hinged mode, and an oil outlet (9) with a cap structure penetrates through the end face of the hanging pull belt (4); in the inner circle of connecting seat (3), in the inner circle of spacer ring (301), on the outer wall of extrusion filter seat (6) to and all seted up connecting thread (5) on the outer wall of pressure seat (8).
2. The portable collecting device for the oil stain in the waste and old used for the maintenance of the road maintenance machinery as claimed in claim 1, which is characterized in that: the extrusion filter seat (6) is of a conical cavity structure, and a filter plate (603) is arranged in the cavity of the extrusion filter seat.
3. The portable collecting device for the oil stain in the waste and old used for the maintenance of the road maintenance machinery as claimed in claim 1, which is characterized in that: and a circle of dripping holes (601) are formed in the extrusion filtering seat (6).
4. The portable collecting device for the oil stain in the waste and old used for the maintenance of the road maintenance machinery as claimed in claim 1, which is characterized in that: the outer end face of the oil absorption sponge (7) is provided with a bearing groove (701) with an inwards concave arc-shaped face structure.
5. The portable collecting device for the oil stain in the waste and old used for the maintenance of the road maintenance machinery as claimed in claim 1, which is characterized in that: the rear top protruding platform structure (801) arranged on the inner surface of the cylindrical cavity of the pressing seat (8) corresponds to the pressure bearing groove (701) arranged on the oil absorption sponge (7).
6. The portable collecting device for the oil stain in the waste and old used for the maintenance of the road maintenance machinery as claimed in claim 1, which is characterized in that: the connecting thread (5) on the pressing seat (8) is matched with the connecting thread (5) arranged on the inner wall of the connecting seat (3).
7. The portable collecting device for the oil stain in the waste and old used for the maintenance of the road maintenance machinery as claimed in claim 1, which is characterized in that: the connecting thread (5) on the extrusion filter seat (6) is matched with the connecting thread (5) in the inner ring of the separating ring (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811303154.2A CN109647745B (en) | 2018-11-02 | 2018-11-02 | Portable waste oil stain collecting device for maintenance of road maintenance machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811303154.2A CN109647745B (en) | 2018-11-02 | 2018-11-02 | Portable waste oil stain collecting device for maintenance of road maintenance machinery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109647745A CN109647745A (en) | 2019-04-19 |
| CN109647745B true CN109647745B (en) | 2020-11-27 |
Family
ID=66110664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811303154.2A Active CN109647745B (en) | 2018-11-02 | 2018-11-02 | Portable waste oil stain collecting device for maintenance of road maintenance machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109647745B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6645537B2 (en) * | 2000-02-18 | 2003-11-11 | Keurig, Incorporated | Beverage filter cartridge |
| CN201728211U (en) * | 2010-02-13 | 2011-02-02 | 桐乡中欣化纤有限公司 | Oil tank-dedicated cleaning apparatus |
| CN202803390U (en) * | 2012-09-19 | 2013-03-20 | 天津中海恒运石油制品有限公司 | Lubricating oil filtering device |
| CN105484221A (en) * | 2015-12-15 | 2016-04-13 | 苏州贝多环保技术有限公司 | Oil pollution recycling device for oil-absorbing cotton |
| CN205668072U (en) * | 2016-06-07 | 2016-11-02 | 山东上达稀土材料有限公司 | Isostatic pressed oil strain platform |
| CN207934000U (en) * | 2017-06-14 | 2018-10-02 | 兰州交通大学 | A kind of convenient collection device of sea pollution by oil |
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2018
- 2018-11-02 CN CN201811303154.2A patent/CN109647745B/en active Active
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| CN109647745A (en) | 2019-04-19 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20201105 Address after: 276800 41 / F, building 1, China Resources Land Plaza, No. 1000, Shandong Road, Qinlou street, Donggang District, Rizhao City, Shandong Province Applicant after: New Donggang Holding Group Co., Ltd Address before: 310014, Zhejiang City, No. 18 Chao Wang Road, Zhejiang University of Technology Applicant before: Hu Ping |
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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Portable collection device for waste oil pollution for maintenance of road maintenance machinery Effective date of registration: 20211222 Granted publication date: 20201127 Pledgee: Rizhao Bank Co.,Ltd. Donggang sub branch Pledgor: New Donggang Holding Group Co., Ltd Registration number: Y2021980016004 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |