CN112047027A - Automatic speed-regulating article security inspection transmission device with conveying hook - Google Patents
Automatic speed-regulating article security inspection transmission device with conveying hook Download PDFInfo
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- CN112047027A CN112047027A CN202010930359.4A CN202010930359A CN112047027A CN 112047027 A CN112047027 A CN 112047027A CN 202010930359 A CN202010930359 A CN 202010930359A CN 112047027 A CN112047027 A CN 112047027A
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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
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/24—Gearing between driving motor and belt- or chain-engaging elements
- B65G23/30—Variable-speed gearing
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Abstract
The invention discloses an automatic speed-regulating article security inspection transmission device with a transmission hook, which comprises a machine body, a detection cavity is arranged in the machine body in a front-back through way, a lifting cavity which is arranged in a front-back through way is communicated with the lower side of the detection cavity, a lifting block is arranged in the lifting cavity and can slide up and down, a conveyor belt cavity with an upward opening is arranged in the upper end surface of the lifting block, the invention can transport the articles to be security-inspected, can automatically accelerate the conveyor belt when more articles are placed on the conveyor belt, improves the security-inspection efficiency, meanwhile, the device is provided with the conveying hook, so that the articles needing to be hung can be conveniently subjected to security inspection, the upper side of the detection cavity is utilized for conveying, and the space is saved.
Description
Technical Field
The invention relates to the related technical field of security check equipment, in particular to an automatic speed-regulating article security check transmission device with a transmission hook.
Background
In daily production life, often need use the security installations, the security installations is used for public security counter-terrorism, the airport, the station, museum, place that need the security inspection such as gymnasium, the transmission brings the article that need the security inspection in the transportation of general meeting, and when security inspection article quantity is great, the conveyer belt takes place the jam easily, the efficiency of security inspection has been influenced, be in the more extravagant energy of high-speed state always, some article that need the security inspection, for example, the plastic bag, hang the package etc. directly put and take place easily to empty on the conveyer belt, lead to article to pour out, it is more inconvenient. The present invention sets forth a device that solves the above problems.
Disclosure of Invention
The technical problem is as follows: when the quantity of the security inspection articles is large, the conveyor belt is easy to block, and the security inspection efficiency is influenced; articles such as plastic bags, hanging bags and the like which need to be checked for safety are directly placed on the conveyor belt and are easy to topple.
In order to solve the problems, the automatic speed regulation article security inspection transmission device with the transmission hook is designed in the embodiment, the automatic speed regulation article security inspection transmission device with the transmission hook comprises a machine body, a detection cavity is arranged in the machine body in a front-back through mode, a lifting cavity is arranged on the lower side of the detection cavity in a front-back through mode in a communicating mode, a lifting block is arranged in the lifting cavity in a vertically sliding mode, a transmission belt cavity with an upward opening is arranged in the upper end face of the lifting block, transmission belt drum shafts are arranged between the left wall and the right wall of the transmission belt cavity and symmetrically rotate front and back respectively, transmission belt drums are fixedly arranged on the outer circular faces of the transmission belt drum shafts on the front and back sides respectively, a driving shaft is arranged between the left wall and the right wall of the transmission belt cavity and between the transmission belt drum shafts on the front side and the back side, a driving drum is fixedly arranged on the outer, the upper right side of the detection cavity is communicated with a communicating cavity with a right opening and a front and back through, a hook conveying box is fixedly arranged between the upper wall and the lower wall of the communicating cavity, a belt wheel shaft is symmetrically and rotatably arranged between the upper wall and the lower wall of the hook conveying box in a front and back manner, the outer circular surfaces of the belt wheel shaft at the front side and the back side are respectively fixedly provided with a transmission belt, the outer circular surfaces of the transmission belt wheels at the front side and the back side are wound with the transmission belt, the lower end surface of the transmission belt is uniformly distributed and fixedly provided with a connecting rod, the lower side of the belt wheel cavity is communicated with a connecting rod groove which is just opposite to the lower side of the transmission belt, the lower end of the connecting rod extends to the lower side of the hook conveying box and is in sliding connection with the connecting rod groove, the lower end of the connecting rod is fixedly provided with a connecting plate, a translation, the lower end face of the translation rod is fixedly provided with a hook capable of hanging articles.
Preferably, a safety scanner is fixedly arranged on the left wall of the detection cavity and can safely scan the articles which are placed on the upper end face of the transmission belt and hung on the hook.
Preferably, terminal surface under the elevator with between the lift chamber lower wall and all around respectively symmetry fixedly connected with lifting spring, lift chamber left side intercommunication is equipped with the speed governing chamber, gliding speed governing slider about the speed governing intracavity can be equipped with, the fixed pivot connecting plate that is equipped with in terminal surface right side under the speed governing slider, the driving shaft left end extend to speed governing intracavity and rotate connect in the pivot connecting plate.
Preferably, a speed regulating gear shaft is arranged between the upper wall and the lower wall on the left side of the speed regulating cavity in a rotating mode, a low-speed driving gear is fixedly arranged on the outer circular surface of the speed regulating gear shaft, a high-speed driving gear is fixedly arranged on the lower side of the low-speed driving gear, a transmission shaft is arranged on the left side of the rotating shaft connecting plate in a rotating mode, a driven bevel gear is fixedly arranged on the left end surface of the driving shaft, a driving bevel gear meshed with the driven bevel gear is fixedly arranged on the outer circular surface of the transmission shaft, a low-speed driving gear meshed with the low-speed driving gear is fixedly arranged on the lower side of the driving bevel gear, and a high-speed driven gear meshed with the high-speed driving gear is fixedly arranged on the lower side of the low.
Preferably, a power motor is fixedly arranged in the upper wall of the speed regulation cavity, and the upper end of the speed regulation gear shaft is in power connection with the lower end face of the power motor.
Preferably, the right side of the lifting cavity is communicated with a locking pin cavity, the right end face of the lifting block is provided with a locking groove with a right opening, a locking pin is arranged in the locking pin cavity and can slide left and right, a locking spring is fixedly connected between the right end face of the locking pin cavity and the right wall of the locking pin cavity, and a locking electromagnet capable of attracting in opposite directions is fixedly arranged on the right end face of the locking pin cavity and the right wall of the locking pin cavity respectively.
Preferably, the right end face of the machine body is fixedly provided with a trapezoidal block on the lower side of the hook conveying box, the front end face and the rear end face of the trapezoidal block are inclined, and the front end face and the rear end face of the trapezoidal block can abut against the end face of the belt wheel shaft close to the translation rod.
Preferably, a sheave cavity is formed in the hook conveying box and on the rear upper side of the sheave cavity, the upper end of the sheave shaft on the rear side extends into the upper wall of the sheave cavity, a sheave is fixedly arranged on the outer circumferential surface of the sheave cavity, a power shaft is rotatably arranged between the upper wall and the lower wall of the sheave cavity and on the rear side of the sheave shaft, a driving plate matched with the sheave is fixedly arranged on the outer circumferential surface of the power shaft, a hook motor is fixedly arranged in the lower wall of the sheave cavity, and the lower end of the power shaft is in power connection with the upper end surface of the hook motor.
The invention has the beneficial effects that: the device can transport the articles to be subjected to security inspection, can automatically accelerate the conveyor belt when a large number of articles are placed on the conveyor belt, improves the security inspection efficiency, is provided with the conveying hook, facilitates the security inspection of the articles to be hung, utilizes the upper side conveying of the detection cavity, and saves space.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
FIG. 1 is a schematic view of the overall structure of an automatic speed-regulating article security inspection transmission device with a transmission hook according to the present invention;
FIG. 2 is a schematic view of the structure in the direction "A-A" of FIG. 1;
FIG. 3 is a schematic view of the structure in the direction "B-B" of FIG. 1;
FIG. 4 is a schematic view of the structure in the direction "C-C" of FIG. 1;
FIG. 5 is an enlarged view of the structure of "D" of FIG. 1;
FIG. 6 is an enlarged view of the structure of "E" of FIG. 1;
fig. 7 is an enlarged view of the structure of "F" of fig. 1.
Detailed Description
The invention will now be described in detail with reference to fig. 1-7, for ease of description, the orientations described below will now be defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The invention relates to an automatic speed regulation article security inspection transmission device with a transmission hook, which comprises a machine body 11, wherein a detection cavity 12 is arranged in the machine body 11 in a front-back through manner, a lifting cavity 14 which is in a front-back through manner is communicated with the lower side of the detection cavity 12, a lifting block 15 is arranged in the lifting cavity 14 in a vertically sliding manner, a transmission belt cavity 16 with an upward opening is arranged in the upper end surface of the lifting block 15, transmission belt cylinder shafts 28 are symmetrically arranged between the left wall and the right wall of the transmission belt cavity 16 in a front-back manner and respectively rotate in the front-back manner, transmission belt rotary drums 27 are respectively fixedly arranged on the outer circular surfaces of the transmission belt cylinder shafts 28 on the front side and the rear side, a driving shaft 19 is rotatably arranged between the left wall and the right wall of the transmission belt cavity 16 and between the transmission belt cylinder shafts 28 on the front side and the rear side, a driving cylinder, the upper right side of the detection cavity 12 is communicated with a communicating cavity 61 with a right through opening, a front through cavity and a rear through cavity 61, a hook conveying box 13 is fixedly arranged between the upper wall and the lower wall of the communicating cavity 61, a pulley shaft 25 is symmetrically and rotatably arranged between the upper wall and the lower wall of the hook conveying box 13, the outer circular surfaces of the pulley shaft 25 at the front side and the rear side are respectively fixedly provided with a transmission pulley 23, the outer circular surfaces of the transmission pulleys 23 at the front side and the rear side are respectively provided with a transmission belt 24, the lower end surface of the transmission belt 24 is uniformly distributed and fixedly provided with a connecting rod 33, the lower side of the pulley cavity 22 is communicated with a connecting rod groove 32 which is just opposite to the lower side of the transmission belt 24, the lower end of the connecting rod 33 extends to the lower side of the hook conveying box 13 and is in sliding connection with the connecting rod groove 32, the lower end of, a return spring 42 is fixedly connected between one end face of the translation rod 30 close to the pulley shaft 25 and one side wall of the translation cavity 41 close to the pulley shaft 25, and a hook 29 capable of hanging articles is fixedly arranged on the lower end face of the translation rod 30.
Advantageously, a security scanner 60 is fixed to the left wall of the detection chamber 12, and the security scanner 60 can perform security scanning on the objects placed on the upper end face of the belt 20 and hung on the hook 29.
Beneficially, under the elevator 15 terminal surface with between the 14 lower walls in lift chamber and all around respectively symmetry fixedly connected with lifting spring 17, lift chamber 14 left side intercommunication is equipped with speed governing chamber 43, gliding speed governing slider 50 that is equipped with about speed governing chamber 43 is internal, the fixed pivot connecting plate 51 that is equipped with in terminal surface right side under the speed governing slider 50, driving shaft 19 left end extend to in the speed governing chamber 43 and rotate connect in pivot connecting plate 51.
Advantageously, a speed regulating gear shaft 44 is rotatably arranged between the upper wall and the lower wall of the left side of the speed regulating cavity 43, a low-speed driving gear 45 is fixedly arranged on the outer circumferential surface of the speed regulating gear shaft 44, a high-speed driving gear 46 is fixedly arranged on the outer circumferential surface of the speed regulating gear shaft 44 and below the low-speed driving gear 45, a transmission shaft 47 is rotatably arranged on the lower end surface of the speed regulating slide block 50 and on the left side of the rotating shaft connecting plate 51, a driven bevel gear 52 is fixedly arranged on the left end surface of the driving shaft 19, a driving bevel gear 53 meshed with the driven bevel gear 52 is fixedly arranged on the outer circumferential surface of the transmission shaft 47, a low-speed driving gear 45 capable of being meshed with the low-speed driving gear 45 is fixedly arranged on the outer circumferential surface of the transmission shaft 47 and on the lower side of the driving bevel gear 53, a high-speed driven gear 49 capable of meshing with the high-speed driving gear 46 is fixedly arranged on the outer circumferential surface of the transmission shaft 47 and below the low-speed driven gear 48.
Advantageously, the power motor 21 is fixedly arranged in the upper wall of the speed regulation cavity 43, and the upper end of the speed regulation gear shaft 44 is in power connection with the lower end face of the power motor 21.
Beneficially, the right side of the lifting cavity 14 is communicated with a locking pin cavity 56, the right end face of the lifting block 15 is provided with a locking groove 55 with a right opening, the locking pin cavity 56 is provided with a locking pin 57 capable of sliding left and right, a locking spring 59 is fixedly connected between the right end face of the locking pin 57 and the right wall of the locking pin cavity 56, and the right end face of the locking pin 57 and the right wall of the locking pin cavity 56 are respectively and fixedly provided with locking electromagnets 58 capable of attracting each other.
Beneficially, a trapezoidal block 40 is fixedly arranged on the right end face of the machine body 11 and on the lower side of the hook conveying box 13, the front end face and the rear end face of the trapezoidal block 40 are inclined, and the front end face and the rear end face of the trapezoidal block 40 and the right end face of the trapezoidal block 40 can be abutted against one end face, close to the pulley shaft 25, of the translation rod 30.
Beneficially, a sheave cavity 36 is formed in the hook conveying box 13 and at the rear upper side of the pulley cavity 22, the rear upper end of the pulley shaft 25 extends into the upper wall of the sheave cavity 36, a sheave 38 is fixedly formed on the outer circumferential surface of the rear pulley shaft 25, a power shaft 35 is rotatably formed between the upper wall and the lower wall of the sheave cavity 36 and at the rear side of the pulley shaft 25, a driving dial 37 matched with the sheave 38 is fixedly formed on the outer circumferential surface of the power shaft 35, a hook motor 34 is fixedly formed in the lower wall of the sheave cavity 36, and the lower end of the power shaft 35 is dynamically connected to the upper end surface of the hook motor 34.
The following will describe in detail the use steps of the automatic speed-adjusting article security inspection transmission device with a transmission hook in conjunction with fig. 1 to 7: in the initial state, the lifting block 15 is located at the upper limit position, the speed regulation slide block 50 is located at the upper limit position, the locking electromagnet 58 is electrified, and the locking pin 57 is located at the right limit position.
In operation, the power motor 21 is started, the speed-adjusting gear shaft 44 is driven to rotate and drive the low-speed driving gear 45 to rotate through power connection, the low-speed driven gear 48 is driven to rotate and drive the transmission shaft 47 to rotate through gear engagement, the driving bevel gear 53 is driven to rotate and drive the driven bevel gear 52 to rotate through gear engagement, the driving shaft 19 is driven to rotate and drive the driving barrel 18 to rotate, the front and rear two-side conveyor drums 27 are driven to rotate and drive the front and rear two-side conveyor drum shafts 28 to rotate through the transmission belt 20, an object placed on the upper end surface of the transmission belt 20 from the front opening of the detection chamber 12 is driven to move backwards, an object entering the upper end surface of the transmission belt 20 in the detection chamber 12 is scanned by the safety scanner 60, then is transmitted to the rear side of the detection chamber 12 and is taken away after sliding downwards from the upper end surface of the outlet slope 26, because the lifting block 15 is driven by gravity to move downwards and compress the lifting spring 17, the driving shaft 19 is driven to move downwards and drive the rotating shaft connecting plate 51 to move downwards, the locking groove 55 is aligned with the locking pin cavity 56, at the moment, the locking electromagnet 58 is powered off, the locking pin 57 is driven by the elastic force of the locking spring 59 to move leftwards to the left end to enter the locking groove 55 to lock the rotating shaft 15, the speed regulating slide block 50 is driven to move downwards and drive the transmission shaft 47 to move downwards, the low-speed driven gear 48 is driven to move downwards to be disengaged from the low-speed driving gear 45, the high-speed driven gear 49 is driven to move downwards to be engaged with the high-speed driving gear 46, at the moment, the speed regulating gear shaft 44 rotates to drive the high-speed driving gear 46 to rotate and drive the high-speed driven gear 49 to rotate through gear engagement, and the, further, the driven bevel gear 52 is driven to rotate through gear engagement and the driving shaft 19 is driven to rotate, so that the rotating speed of the driving shaft 19 is increased, further the driving belt 20 is driven to accelerate, the transportation of the articles on the upper end surface of the driving belt 20 is accelerated, the efficiency of security inspection is improved, meanwhile, the hook motor 34 is started, the power shaft 35 is driven to rotate through power connection and the driving dial plate 37 is driven to rotate, further the grooved pulley 38 is driven to rotate intermittently and the rear side pulley shaft 25 is driven to rotate intermittently, further the rear side pulley 23 is driven to rotate intermittently and the front side pulley 23 is driven to rotate intermittently through the conveying belt 24, further the front side pulley shaft 25 is driven to rotate intermittently and the connecting rod 33 is driven to rotate intermittently, further the connecting plate 31 is driven to rotate intermittently and the translation rod 30 is driven to rotate intermittently, further the hook 29 is driven to rotate intermittently, at the, and is driven to the interior of the detection cavity 12 to perform safety scanning through the safety scanner 60, then rotates out from the rear side, and the translation rod 30 abuts against the rear end face of the trapezoidal block 40, so as to move outwards and stretch the return spring 42, and further drive the hook 29 to extend rightwards, so that a person can conveniently take away the suspended object.
The invention has the beneficial effects that: the device can transport the articles to be subjected to security inspection, can automatically accelerate the conveyor belt when a large number of articles are placed on the conveyor belt, improves the security inspection efficiency, is provided with the conveying hook, facilitates the security inspection of the articles to be hung, utilizes the upper side conveying of the detection cavity, and saves space.
In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.
Claims (8)
1. The utility model provides an automatic speed governing article security installations with conveying couple, includes the organism, its characterized in that: the machine body is internally provided with a front and back through detection cavity, the lower side of the detection cavity is communicated with a front and back through lifting cavity, the lifting cavity can be internally provided with a lifting block which can slide up and down, the upper end face of the lifting block is internally provided with a conveying belt cavity with an upward opening, a conveying belt shaft is arranged between the left wall and the right wall of the conveying belt cavity and symmetrically rotates front and back respectively, the outer circular face of the conveying belt shaft is fixedly provided with a conveying belt drum on the front and back sides respectively, a driving shaft is arranged between the left wall and the right wall of the conveying belt cavity and between the conveying belt shaft on the front and back sides in a rotating manner, a driving shaft is fixedly arranged on the outer circular face of the driving shaft, the conveying belt drum and the outer circular face of the driving shaft are jointly wound with a conveying belt, the upper right side of the detection cavity is communicated with a communication cavity with an opening which is through right and front, the front side and the rear side the outer disc of band pulley axle is fixed respectively and is equipped with driving pulley, both sides around the driving pulley outer disc around being equipped with conveyer, conveyer lower extreme evenly distributed and the fixed connecting rod that is equipped with, band pulley chamber downside intercommunication is equipped with just to conveyer downside connecting rod groove, the connecting rod lower extreme extend to couple conveying box downside and with sliding connection between the connecting rod groove, the fixed connecting plate that is equipped with of connecting rod lower extreme, be equipped with the translation chamber that the opening is decurrent in the connecting plate, sliding connection has the translation pole in the translation chamber, the translation pole is close to a band pulley axle terminal surface with the translation chamber is close to fixedly connected with reset spring between a band pulley axle lateral wall, the fixed couple that can hang article that is equipped with of terminal surface under the translation pole.
2. The automatic speed regulation article security inspection transmission device with the transmission hook as claimed in claim 1, characterized in that: the detection device is characterized in that a safety scanner is fixedly arranged on the left wall of the detection cavity, and the safety scanner can safely scan objects which are placed on the upper end face of the transmission belt and hung on the hook.
3. The automatic speed regulation article security inspection transmission device with the transmission hook as claimed in claim 1, characterized in that: terminal surface under the elevator with between the lift chamber lower wall and all around respectively symmetrical fixedly connected with lift spring, lift chamber left side intercommunication is equipped with the speed governing chamber, gliding speed governing slider about the speed governing intracavity can, the fixed pivot connecting plate that is equipped with in terminal surface right side under the speed governing slider, the driving shaft left end extend to in the speed governing intracavity and rotate connect in the pivot connecting plate.
4. The automatic speed regulation article security inspection transmission device with the transmission hook as claimed in claim 3, characterized in that: the speed governing slider is equipped with the speed governing gear axle between the lower wall on the left of speed governing chamber, the fixed low-speed driving gear that is equipped with of speed governing gear axle excircle face, the outer disc of speed governing gear axle just is in the fixed high-speed driving gear that is equipped with of low-speed driving gear downside, the terminal surface just is in under the speed governing slider the rotation of pivot connecting plate left side is equipped with the transmission shaft, the fixed driven bevel gear that is equipped with of driving shaft left end face, the outer disc of transmission shaft fixed be equipped with driven bevel gear engaged with, the outer disc of transmission shaft just the fixed ability that is equipped with of driving bevel gear downside with low-speed driving gear engaged with low-speed driving gear, the outer disc of transmission shaft just is in the fixed high-speed driven gear.
5. The automatic speed regulation article security inspection transmission device with the transmission hook as claimed in claim 4, wherein: and a power motor is fixedly arranged in the upper wall of the speed regulation cavity, and the upper end of the speed regulation gear shaft is in power connection with the lower end face of the power motor.
6. The automatic speed regulation article security inspection transmission device with the transmission hook as claimed in claim 1, characterized in that: the lifting cavity right side intercommunication is equipped with the locking tip chamber, the lifting block right-hand member face is equipped with opening locking groove to the right, what the locking tip intracavity can the horizontal slip is equipped with the locking tip, the locking tip right-hand member face with fixedly connected with locking spring between the locking tip chamber right wall, the locking tip right-hand member face with locking tip chamber right wall is fixed respectively and is equipped with the locking electro-magnet that can opposite sex attract.
7. The automatic speed regulation article security inspection transmission device with the transmission hook as claimed in claim 1, characterized in that: organism right-hand member face just the couple transfer box downside is fixed and is equipped with the trapezoidal piece, terminal surface slope around the trapezoidal piece, terminal surface around the trapezoidal piece with trapezoidal piece right-hand member face can with the translation pole is close to take a shaft terminal surface to offset.
8. The automatic speed regulation article security inspection transmission device with the transmission hook as claimed in claim 1, characterized in that: a sheave cavity is formed in the hook conveying box and on the rear upper side of the sheave cavity, a sheave is fixedly arranged on the upper end of the rear side of the sheave shaft and extends into the upper wall of the sheave cavity, a power shaft is rotatably arranged on the rear side of the sheave shaft between the upper wall and the lower wall of the sheave cavity, a driving plate matched with the sheave is fixedly arranged on the outer circumferential surface of the power shaft, a hook motor is fixedly arranged in the lower wall of the sheave cavity, and the lower end of the power shaft is in power connection with the upper end face of the hook motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010930359.4A CN112047027A (en) | 2020-09-07 | 2020-09-07 | Automatic speed-regulating article security inspection transmission device with conveying hook |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010930359.4A CN112047027A (en) | 2020-09-07 | 2020-09-07 | Automatic speed-regulating article security inspection transmission device with conveying hook |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112047027A true CN112047027A (en) | 2020-12-08 |
Family
ID=73610661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010930359.4A Withdrawn CN112047027A (en) | 2020-09-07 | 2020-09-07 | Automatic speed-regulating article security inspection transmission device with conveying hook |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112047027A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113044481A (en) * | 2021-04-07 | 2021-06-29 | 济南安昌运输有限公司 | Device for assisting in going upstairs and downstairs of luggage case |
-
2020
- 2020-09-07 CN CN202010930359.4A patent/CN112047027A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113044481A (en) * | 2021-04-07 | 2021-06-29 | 济南安昌运输有限公司 | Device for assisting in going upstairs and downstairs of luggage case |
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Application publication date: 20201208 |