CN111099278B - Article conveying device - Google Patents
Article conveying device Download PDFInfo
- Publication number
- CN111099278B CN111099278B CN201911392351.0A CN201911392351A CN111099278B CN 111099278 B CN111099278 B CN 111099278B CN 201911392351 A CN201911392351 A CN 201911392351A CN 111099278 B CN111099278 B CN 111099278B
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- China
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- fixing plate
- box body
- side wall
- gear
- power cavity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G25/00—Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement
- B65G25/04—Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement the carrier or impeller having identical forward and return paths of movement, e.g. reciprocating conveyors
- B65G25/06—Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement the carrier or impeller having identical forward and return paths of movement, e.g. reciprocating conveyors having carriers, e.g. belts
- B65G25/065—Reciprocating floor conveyors
Abstract
The invention discloses an article conveying device which comprises an outer fixing plate, wherein an inner fixing plate matched with the inner fixing plate is arranged on the inner wall of the outer fixing plate, a box body is arranged on one side of the outer fixing plate and one side of the inner fixing plate, the box body is perpendicular to the outer fixing plate and the inner fixing plate, the box body is of a hollow structure, a power cavity is arranged in the middle of the box body, two placing cavities are arranged in the box body and are respectively positioned on two sides of the power cavity, a driving motor is arranged on the inner wall of the upper end of the power cavity, a driving roller matched with an output shaft of the driving motor is rotatably connected in the power cavity, a support is vertically arranged on the side wall of the lower end of the box body, and one end, far away from the box body, of the support is rotatably connected with a driven roller. The invention can take the delivery and the small express when standing on the balcony without going out, realizes the delivery of the goods upstairs and downstairs, is convenient and quick, and saves a large amount of manpower.
Description
The invention relates to a divisional application of an article conveying device applicable to residential buildings, which is applied for 28.05.2018 and is named as CN 201810521938.6.
Technical Field
The invention relates to the technical field of life correlation, in particular to an article conveying device.
Background
The internet of things is an important component of a new generation of information technology and an important development stage of the information era, and as the name suggests, the internet of things is the internet connected with objects. This has two layers: firstly, the core and the foundation of the internet of things are still the internet, and the internet is an extended and expanded network on the basis of the internet; and secondly, the user side extends and expands to any article to perform information exchange and communication, namely, the article information. At present, people are the most beneficiaries of the internet of things, and the most beneficiaries are specifically that people can purchase articles required by life on the internet through mobile terminals such as mobile phones and computers, for example, order taking out, shopping on the internet and the like, and the purchased articles are directly sent to the hands of consumers by dispatchers, so that in real life, people can often see that a plurality of dispatchers shuttle back and forth between residential buildings to dispatch the articles, in order to improve service quality, the dispatchers need to send the articles to the hands of the consumers on time, so that the dispatchers almost all race the way to catch up time, precious time is wasted for going upstairs and downstairs and waiting for elevators, the dispatchers are tired due to high-intensity workload every day, and therefore, an article conveying device suitable for the residential buildings is provided to solve the problems.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, in order to improve service quality, a dispatcher needs to send articles to a consumer on time, so that the dispatcher almost runs all the way to catch up time, precious time is wasted when going upstairs and downstairs and waiting for elevators, and the dispatcher is tired of mind and body due to high-intensity workload every day, and provides an article conveying device suitable for residential buildings.
In order to achieve the purpose, the invention adopts the following technical scheme:
an article conveying device suitable for a residential building comprises an outer fixing plate, wherein an inner fixing plate matched with the inner fixing plate is arranged on the inner wall of the outer fixing plate, a box body is arranged on one side of the outer fixing plate and one side of the inner fixing plate and is perpendicular to the outer fixing plate and the inner fixing plate, the box body is of a hollow structure, a power cavity is arranged in the middle of the box body, two placing cavities are arranged in the box body and are respectively positioned on two sides of the power cavity, a driving motor is arranged on the inner wall of the upper end of the power cavity, a driving roller matched with an output shaft of the driving motor is rotatably connected in the power cavity, a support is vertically arranged on the side wall of the lower end of the box body, one end, away from the box body, of the support is rotatably connected with a driven roller, a gear is fixed on the side wall of the driven roller, the gear is positioned between the outer fixing plate and the inner fixing plate, and a rack matched with the gear is arranged on the side wall of the inner fixing plate in a surrounding manner, the transmission chain is sleeved between the driving roller and the driven roller and penetrates through the side wall of the lower end of the box body, a first groove is formed in the side wall, far away from the inner fixing plate, of the outer fixing plate, a first magnetic iron is fixedly arranged on the side wall of the first groove in a surrounding mode, a second groove is formed in the side wall, far away from the rack, of the inner fixing plate, a second magnetic iron is fixedly arranged on the side wall of the second groove in a surrounding mode, the first magnetic iron and the second magnetic iron are respectively located on two sides of the gear, two side walls of the box body are respectively provided with a two-way control switch, the two-way control switches are respectively located on two sides of the power cavity, are connected with the driving motor through wires, the wires penetrate through the side wall of the box body and extend into the power cavity, openings are formed in the side walls, far away from the power cavity, of the two placing cavities are respectively provided with openings, and the side wall of the box body is rotatably connected with a cover plate matched with the openings through hinges, and the hinge is positioned below the bidirectional control switch.
Preferably, the outer fixing plate and the inner fixing plate are both oval in shape formed by combining a rectangle and two semicircles.
Preferably, one side of outer fixed plate and inner fixed plate still is equipped with the riser of perpendicular to ground, the riser lateral wall is equipped with the sliding chamber, and the box passes through slide bar and sliding chamber sliding connection.
Preferably, the surface of the gear is coated with a magnetic material, the magnetism of the first magnetite is the same as that of the gear, and the magnetism of the second magnetite is opposite to that of the gear.
Preferably, the distance between the outer fixing plate and the inner fixing plate is larger than the diameter of the gear.
Preferably, a detachable and replaceable storage battery is arranged in the power cavity, and the storage battery provides power for the driving motor.
Preferably, the bracket is fixedly connected with the side wall of the lower end of the box body in a welding mode.
Preferably, the outer surface of the tank body is coated with an anticorrosive material.
The box body can reciprocate on a resident building to realize the transmission of objects between the upstairs and the downstairs, for example, the objects such as take-out, small express items or small objects and the like determined by residents can be placed in the box body, the user can take the objects from a home balcony, the manual upstairs and downstairs delivering mode is replaced, a large amount of labor force is saved, the work burden of the deliverer is reduced, the work efficiency is improved, one box body can serve all residents in one unit, the economic benefit is good, and in addition, when the mobile phone, the wallet or the file falls in the home, the family members on the building can also send the objects to the downstairs through the box body.
Drawings
FIG. 1 is a schematic view of a first operating state of an article conveying device suitable for residential buildings according to the present invention;
FIG. 2 is a schematic view of a second operating state of the article conveying device suitable for residential buildings according to the present invention;
FIG. 3 is a schematic view of a third operating state of the article conveying device suitable for residential buildings according to the present invention;
FIG. 4 is a structural diagram of a fourth operating state of the article conveying device suitable for residential buildings according to the present invention;
FIG. 5 is a schematic view of the structure at A in FIG. 2 according to the present invention.
In the figure: the device comprises an outer fixing plate 1, an inner fixing plate 2, a box body 3, a power cavity 4, a placing cavity 5, a driving motor 6, a driving roller 7, a support 8, a driven roller 9, a gear 10, a rack 11, a transmission chain 12, a first groove 13, a first magnetite 14, a second groove 15, a second magnetite 16, a bidirectional control switch 17, a lead 18, an opening 19, a hinge 20 and a cover plate 21.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, an article conveying device suitable for residential buildings comprises an outer fixing plate 1, an inner fixing plate 2 matched with the inner fixing plate 1 is arranged on the inner wall of the outer fixing plate 1, the outer fixing plate 1 and the inner fixing plate 2 are both in the shape of an ellipse formed by combining a rectangle and two semicircles, the ellipse is in a closed shape, so that a box body 3 can reciprocate, the outer fixing plate 1 and the inner fixing plate 2 are installed on the outer side wall of the residential building, because the existing residential building has two residents in one floor, the outer fixing plate 1 and the inner fixing plate 2 are installed between two balconies and are close to the balconies of the residents, so that the residents in each floor can conveniently take articles, vertical plates perpendicular to the ground are further arranged on one side of the outer fixing plate 1 and the inner fixing plate 2, sliding cavities are arranged on the side walls of the vertical plates, and the box body 3 is in sliding connection with the sliding cavities through sliding rods, the shape of sliding cavity is identical with the movement track of box 3, and slide bar and sliding cavity can play the restriction to box 3 like this, slope when preventing box 3 operation, and one side of outer fixed plate 1 and inner fixed plate 2 is equipped with box 3, and the surface coating of box 3 has anticorrosive material, prevents that sleet from corroding box 3, makes its life-span shorten, and box 3 perpendicular to outer fixed plate 1 and the setting of inner fixed plate 2.
Referring to fig. 5, the box body 3 is a hollow structure, a power cavity 4 is arranged in the middle of the box body 3, two placing cavities 5 are arranged in the box body 3, the two placing cavities 5 are respectively positioned at two sides of the power cavity 4, a driving motor 6 is arranged on the inner wall of the upper end of the power cavity 4, a storage battery which can be disassembled and replaced is arranged in the power cavity 4 and supplies power to the driving motor 6, because the box body 3 is moving, and it is difficult to supply power to the driving motor 6 from the outside, the storage battery is arranged in the box body to supply power to the box body, the box body is simple and practical, a driving roller 7 matched with an output shaft of the driving motor 6 is rotatably connected in the power cavity 4, a bracket 8 is vertically arranged on the side wall of the lower end of the box body 3, the bracket 8 is fixedly connected with the side wall of the lower end of the box body 3 in a welding mode, the welding mode is firmer, the use safety is improved, and the potential safety hazard is eliminated, and the outer surfaces of the bracket 8 and the box body 3 are coated with magnetic isolation materials to prevent the box body 3 from tilting due to the action of magnetic force, one end of the bracket 8, which is far away from the box body 3, is rotatably connected with a driven roller 9, the side wall of the driven roller 9 is fixed with a gear 10, the surface of the gear 10 is coated with magnetic materials, the magnetism of the first magnetic iron 14 is the same as that of the gear 10, the magnetism of the second magnetic iron 16 is opposite to that of the gear 10, according to the principle that like poles repel each other and opposite poles attract each other, the first magnetic iron 14 has a repulsive force to the gear 10, the second magnetic iron 16 has an attractive force to the gear 10, so that the gear 10 can be always meshed with the rack 11 to drive the box body 3 to move, the distance between the outer fixing plate 1 and the inner fixing plate 2 is larger than the diameter of the gear 10, in order that the outer fixing plate 1 does not obstruct the meshing of the gear 10 and the rack 11, and the gear 10 is positioned between the outer fixing plate 1 and the inner fixing plate 2, a rack 11 matched with a gear 10 is arranged on the side wall of the inner fixing plate 2 in a surrounding way, a transmission chain 12 is sleeved between the driving roller 7 and the driven roller 9, the transmission chain 12 penetrates through the side wall of the lower end of the box body 3,
the side wall of the outer fixing plate 1 far away from the inner fixing plate 2 is provided with a first groove 13, the side wall of the first groove 13 is fixedly surrounded by a first magnetic iron 14, the side wall of the inner fixing plate 2 far away from the rack 11 is provided with a second groove 15, the side wall of the second groove 15 is fixedly surrounded by a second magnetic iron 16, the first magnetic iron 14 and the second magnetic iron 16 are respectively positioned at two sides of the gear 10, the side walls at two sides of the box body 3 are respectively provided with a two-way control switch 17, the two-way control switches 17 can control the forward rotation and the reverse rotation of the driving motor 6, so that the up-and-down reciprocating movement of the box body 3 can be realized, the balcony of a resident can be passed through without running one circle at each time, the time is saved, the two-way control switches 17 are respectively positioned at two sides of the power cavity 4, the two-way control switches 17 are connected with the driving motor 6 through a lead 18, and the lead 18 penetrates through the side wall of the box body 3 and extends into the power cavity 4, two lateral walls of placing the cavity 5 and being far away from the power cavity 4 are all provided with an opening 19, the lateral wall of the box body 3 is rotatably connected with a cover plate 21 matched with the opening 19 through a hinge 20, and the hinge 20 is positioned below the two-way control switch 17.
Referring to fig. 1, at the initial stage of the present invention, the box body 3 is located at the first floor, the deliverer selects the placing cavity 5 for placing the articles according to the position of the resident, the resident on the left side is placed in the placing cavity 5 on the left side, otherwise, the resident is placed in the placing cavity 5 on the right side, and the cover plate 21 is rotatably connected with the side wall of the box body 3, so that the article can be placed only by opening the cover plate 21.
A first working mode, which is to send articles for a single-side resident, when the articles are put into the placing cavity 5, the two-way control switch 17 is started, the driving motor 6 starts to work, the driving roller 7 is driven by the output shaft of the driving motor 6 to rotate, the driving roller 7 drives the driven roller 9 to rotate through the transmission chain 12, because the gear 10 is fixedly connected with the driven roller 9, the gear 10 rotates along with the driven roller, because the repulsive force of the first magnetic stone 14 to the gear 10 and the attractive force of the second magnetic stone 16 to the gear 10, the gear 10 can be always meshed with the rack 11, thereby driving the box body 3 to move, when the box body 3 moves to the position of the resident balcony, a person stands out the hand on the balcony, the two-way control switch 17 is firstly closed, the box body 3 stops moving, then the cover plate 21 is opened to take out the articles, the two-way control switch 17 is reversely opened, so that the driving motor 6 reversely rotates, the user returns to the first floor, and finally the person downstairs closes the bidirectional control switch 17, so that the work is finished.
A second working mode, which is to send articles for the residents on both sides, referring to fig. 2-4, after the articles are put into the placing cavities 5 on both sides, the two-way control switch 17 is started, the box body 3 starts to move, referring to fig. 2, the box body 3 is positioned on the left side, after the articles are taken out by the user on the left side, the two-way control switch 17 is not needed to be started reversely, but the two-way control switch 17 is started according to the direction before closing, the box body 3 continues to move upwards, referring to fig. 3, the box body 3 starts to move towards the arc-shaped bent part at the moment, the box body 3 still moves upwards before reaching the top, after passing through the position of the top, the box body 3 starts to move downwards, at the moment, the box body 3 is positioned on the other side of the floor, referring to fig. 4, so that the residents on both sides can take the articles, and when the box body 3 moves at the arc-shaped bent part, due to the restriction action of the slide rod and the sliding cavity, the box 3 still keeps the vertical state, and after the user on the side finishes taking the articles, the box 3 also continues to move downwards until the user moves to the first floor, the two-way control switch 17 is closed, and the work is finished.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (3)
1. An article conveying device comprises an outer fixing plate (1) and is characterized in that an inner fixing plate (2) matched with the outer fixing plate is arranged on the inner wall of the outer fixing plate (1), a box body (3) is arranged on one side of the outer fixing plate (1) and one side of the inner fixing plate (2), the box body (3) is perpendicular to the outer fixing plate (1) and the inner fixing plate (2), the box body (3) is of a hollow structure, a power cavity (4) is arranged in the middle of the box body (3), two placing cavities (5) are arranged in the box body (3), the two placing cavities (5) are respectively located on two sides of the power cavity (4), a driving motor (6) is arranged on the inner wall of the upper end of the power cavity (4), a driving roller (7) matched with an output shaft of the driving motor (6) is rotatably connected in the power cavity (4), a support (8) is vertically arranged on the side wall of the lower end of the box body (3), and one end of the bracket (8) far away from the box body (3) is rotatably connected with a driven roller (9), the side wall of the driven roller (9) is fixed with a gear (10), the gear (10) is positioned between the outer fixing plate (1) and the inner fixing plate (2), the side wall of the inner fixing plate (2) is provided with a rack (11) matched with the gear (10) in a surrounding manner, a transmission chain (12) is sleeved between the driving roller (7) and the driven roller (9), the transmission chain (12) penetrates through the side wall of the lower end of the box body (3), the side wall of the outer fixing plate (1) far away from the inner fixing plate (2) is provided with a first groove (13), the side wall of the first groove (13) is fixedly provided with a first magnetic iron (14) in a surrounding manner, the side wall of the inner fixing plate (2) far away from the rack (11) is provided with a second groove (15), and the side wall of the second groove (15) is fixedly provided with a second magnetic iron (16) in a surrounding manner, the first magnetic iron (14) and the second magnetic iron (16) are respectively located on two sides of the gear (10), two-way control switches (17) are arranged on side walls of two sides of the box body (3), the two-way control switches (17) are respectively located on two sides of the power cavity (4), the two-way control switches (17) are connected with the driving motor (6) through wires (18), the wires (18) penetrate through the side wall of the box body (3) and extend into the power cavity (4), openings (19) are formed in side walls, far away from the power cavity (4), of the two placing cavities (5), the side wall of the box body (3) is rotatably connected with a cover plate (21) matched with the openings (19) through hinges (20), and the hinges (20) are located below the two-way control switches (17);
the shapes of the outer fixing plate (1) and the inner fixing plate (2) are both ellipses formed by combining a rectangle and two semicircles;
vertical plates perpendicular to the ground are further arranged on one sides of the outer fixing plate (1) and the inner fixing plate (2), sliding cavities are formed in the side walls of the vertical plates, and the box body (3) is connected with the sliding cavities in a sliding mode through sliding rods;
the surface of the gear (10) is coated with a magnetic material, the magnetism of the first magnetite (14) is the same as that of the gear (10), and the magnetism of the second magnetite (16) is opposite to that of the gear (10); a storage battery which can be disassembled and replaced is arranged in the power cavity (4);
the distance between the outer fixing plate (1) and the inner fixing plate (2) is larger than the diameter of the gear (10); the support (8) is fixedly connected with the side wall of the lower end of the box body (3) in a welding mode.
2. An article transport apparatus according to claim 1, characterized in that the accumulator supplies power to the drive motor (6).
3. An article transport apparatus according to claim 1, wherein the outer surface of the casing (3) is coated with a corrosion-resistant material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911392351.0A CN111099278B (en) | 2018-05-28 | 2018-05-28 | Article conveying device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911392351.0A CN111099278B (en) | 2018-05-28 | 2018-05-28 | Article conveying device |
| CN201810521938.6A CN108861370B (en) | 2018-05-28 | 2018-05-28 | Article conveying device suitable for residential building |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810521938.6A Division CN108861370B (en) | 2018-05-28 | 2018-05-28 | Article conveying device suitable for residential building |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111099278A CN111099278A (en) | 2020-05-05 |
| CN111099278B true CN111099278B (en) | 2021-11-09 |
Family
ID=64335693
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911392351.0A Active CN111099278B (en) | 2018-05-28 | 2018-05-28 | Article conveying device |
| CN201810521938.6A Active CN108861370B (en) | 2018-05-28 | 2018-05-28 | Article conveying device suitable for residential building |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810521938.6A Active CN108861370B (en) | 2018-05-28 | 2018-05-28 | Article conveying device suitable for residential building |
Country Status (1)
| Country | Link |
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| CN (2) | CN111099278B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113996184B (en) * | 2021-12-08 | 2023-11-03 | 浙江华强环境科技有限公司 | MBR hollow fiber membrane module |
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| DE3911013A1 (en) * | 1989-04-05 | 1990-10-11 | Magnet Motor Gmbh | Apparatus for conveying loads in shafts of great depth |
| WO1999038790A2 (en) * | 1998-02-01 | 1999-08-05 | Emil Schmid | Method and device for transporting people |
| CN205132833U (en) * | 2015-12-08 | 2016-04-06 | 安道利佳智能科技（北京）股份公司 | Corridor intelligence elevator |
| CN107311011A (en) * | 2017-08-16 | 2017-11-03 | 王泽飞 | A kind of elevator of rack pinion |
| CN207390748U (en) * | 2017-09-21 | 2018-05-22 | 杭州艾勒维特传动机械有限公司 | A kind of gear rack elevating machine |
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| JPS6293112A (en) * | 1985-10-18 | 1987-04-28 | Kazuo Kimata | Conveying device |
| CN1154609C (en) * | 1998-10-12 | 2004-06-23 | 周伟平 | Cyclically running multi-purpose elevator |
| KR20040096958A (en) * | 2004-10-11 | 2004-11-17 | 김영권 | Elevator |
| CN2908443Y (en) * | 2006-05-24 | 2007-06-06 | 王业林 | Bottom device of shovel type lifter |
| CN201501661U (en) * | 2009-09-27 | 2010-06-09 | 李金喜 | Chain wheel type cycling service lift |
| CN201857186U (en) * | 2010-07-14 | 2011-06-08 | 西安建筑科技大学华清学院 | Building outdoor rescue lifting device |
| GB201016023D0 (en) * | 2010-09-24 | 2010-11-10 | Godwin Adrian M | Transportation system |
| CN103303769A (en) * | 2012-03-09 | 2013-09-18 | 河南理工大学 | Cycle multi-car elevator |
| CN103303770A (en) * | 2012-03-09 | 2013-09-18 | 河南理工大学 | Single-wheel cycled multi-car elevator |
| DE102014005840A1 (en) * | 2014-04-19 | 2015-10-22 | Manfred Schrepf | Cabin-bound drive for elevators in high-rise buildings |
| CN104828467B (en) * | 2015-04-17 | 2017-01-11 | 张家港建辰机械科技有限公司 | Chain circulation bearing device |
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- 2018-05-28 CN CN201911392351.0A patent/CN111099278B/en active Active
- 2018-05-28 CN CN201810521938.6A patent/CN108861370B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3911013A1 (en) * | 1989-04-05 | 1990-10-11 | Magnet Motor Gmbh | Apparatus for conveying loads in shafts of great depth |
| WO1999038790A2 (en) * | 1998-02-01 | 1999-08-05 | Emil Schmid | Method and device for transporting people |
| CN205132833U (en) * | 2015-12-08 | 2016-04-06 | 安道利佳智能科技（北京）股份公司 | Corridor intelligence elevator |
| CN107311011A (en) * | 2017-08-16 | 2017-11-03 | 王泽飞 | A kind of elevator of rack pinion |
| CN207390748U (en) * | 2017-09-21 | 2018-05-22 | 杭州艾勒维特传动机械有限公司 | A kind of gear rack elevating machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111099278A (en) | 2020-05-05 |
| CN108861370B (en) | 2020-06-19 |
| CN108861370A (en) | 2018-11-23 |
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Effective date of registration: 20211026 Address after: 257400 Lijin Economic Development Zone, Dongying City, Shandong Province Applicant after: SHANDONG DADONGLIAN PETROLEUM EQUIPMENT Co.,Ltd. Address before: 475000 No.85, Minglun street, Shunhe Hui District, Kaifeng City, Henan Province Applicant before: Wen Liqin |
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