CN113501020A - Cab apron for track traffic - Google Patents
Cab apron for track traffic Download PDFInfo
- Publication number
- CN113501020A CN113501020A CN202110921032.5A CN202110921032A CN113501020A CN 113501020 A CN113501020 A CN 113501020A CN 202110921032 A CN202110921032 A CN 202110921032A CN 113501020 A CN113501020 A CN 113501020A
- Authority
- CN
- China
- Prior art keywords
- cab apron
- door
- apron
- shielding
- rotating column
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D23/00—Construction of steps for railway vehicles
- B61D23/02—Folding steps for railway vehicles, e.g. hand or mechanically actuated
- B61D23/025—Folding steps for railway vehicles, e.g. hand or mechanically actuated electrically or fluid actuated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D19/00—Door arrangements specially adapted for rail vehicles
- B61D19/003—Door arrangements specially adapted for rail vehicles characterised by the movements of the door
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D25/00—Window arrangements peculiar to rail vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K13/00—Other auxiliaries or accessories for railways
- B61K13/04—Passenger-warning devices attached to vehicles; Safety devices for preventing accidents to passengers when entering or leaving vehicles
Abstract
The invention relates to the technical field of rail transit, and discloses a cab apron for rail transit, which comprises a shielding window, wherein the back of the shielding window is provided with a shielding door, the back of the shielding door is provided with a vehicle door, the side wall of the shielding window is rotatably connected with a rotating column, the outer side of the rotating column is sleeved with the cab apron, the surface of the cab apron is provided with a first limiting groove, the inside of the first limiting groove is slidably connected with a pedal, and a cushion pad is arranged between gaps of the shielding door and the vehicle door. According to the invention, the conductive sliding block is contacted with the conductive sheet by opening the vehicle shield door, so that the cab apron automatic placement driving device is controlled to start working, the effect of placing the cab apron is achieved, the effect of rapidly taking passengers is facilitated, and meanwhile, the driving device is blocked from reversely rotating when passengers are on the upper end of the pedal by the touch switch arranged at the bottom of the pedal in the cab apron, so that the cab apron cannot be lifted to prevent the shield door from being closed, and the problem of clamping injury caused by non-taking passengers is solved.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a cab apron for rail transit.
Background
The passenger who often has inconvenient action in track traffic's the operation, when taking the subway, need the staff to place the cab apron between shield door and door to the passenger who conveniently uses the wheelchair or push away perambulator takes a bus, the passenger who needs to use the cab apron contacts the platform staff earlier, can take a bus after placing the cab apron, when no staff near the door, often can not in time take a bus, influences passenger's trip plan.
The existing rail transit cab apron often has the following technical defects when in use: when the flow of people is large, the taking-in speed of a passenger carrying a luggage box or using a wheelchair, a baby carriage or a portable electric vehicle is slow, the closing of a vehicle door and the departure of the vehicle are directly influenced, and the traveling plan of passengers is blocked; secondly, when the number of people in the carriage is large, the situation that passengers still stand on the cab apron and do not enter the carriage often occurs, and people are easily injured by closing the vehicle door at the moment.
Disclosure of Invention
Aiming at the defects of the prior rail transit cab apron provided in the background technology in the using process, the invention provides the rail transit cab apron which has the advantages of rapid retraction and release of the cab apron, clamping prevention and backward sliding prevention and solves the technical problems provided in the background technology.
The invention provides the following technical scheme: the utility model provides a cab apron for track traffic, includes the shielding window, the back of shielding window is equipped with the shield door, the back of shield door is equipped with the door, the lateral wall of shielding window rotates and is connected with the rotation post, the cab apron has been cup jointed in the outside of rotation post, first spacing groove has been seted up on the surface of cab apron, first spacing inslot portion sliding connection has the footboard, all be equipped with the blotter between the gap of shield door and door, the bottom of footboard and the inside that is located the cab apron are equipped with gravity adjustment mechanism, the bottom of cab apron and the outside that is located the rotation post have seted up the spacing groove, spacing inslot portion is equipped with electromagnetic drive mechanism, the terminal of shield door just is close to blotter one side and has seted up the opening, the open-ended inside is equipped with electric drive mechanism.
Preferably, the gravity adjusting mechanism comprises a cavity arranged at the bottom of the pedal, a sliding rail is arranged at the upper end of the pedal, carbon dioxide gas is filled in the cavity, a piston is arranged at the upper end of the left side of the cavity, a balancing weight is arranged at the other end of the piston and extends to the inside of the sliding rail, and a touch switch is arranged at the lower end of the balancing weight.
Preferably, the electromagnetic driving mechanism comprises baffle plates fixedly connected to two sides of the rotating column, electromagnets are arranged at the upper ends of the baffle plates and inside the limiting grooves, limiting blocks are symmetrically arranged at the lower ends of the electromagnets along the rotating column, and the limiting blocks are fixedly connected to the cab apron.
Preferably, the electric driving mechanism comprises a spring fixedly connected inside the opening, the other end of the spring is fixedly connected with a conductive sliding block, the lower end of the right side of the conductive sliding block is fixedly provided with a conductive sheet, and the conductive sheet is fixedly connected to the cab apron.
Preferably, the baffle is made of magnetic materials, and the left side and the right side of the baffle are opposite in magnetism.
Preferably, the balancing weight is oval, and the surface of the balancing weight is provided with a smooth wear-resistant coating.
The invention has the following beneficial effects:
1. according to the invention, the conductive sliding block is contacted with the conductive sheet by opening the vehicle shielding door, so that the cab apron automatic placement driving device is controlled to start working, the cab apron placement effect is achieved, meanwhile, the cab apron is overturned to be horizontally placed by the matching arrangement among the electromagnet, the baffle and the limiting block, the rapid placement is achieved, the effect that passengers need to take the cab apron quickly is achieved, and the problems that manpower and material resources are consumed, the efficiency is low and the traveling is influenced due to manual placement in the prior art are solved.
2. According to the invention, the cab apron is placed by the contact electrification of the conductive slide block and the conductive sheet in the automatic opening process of the shield door, and meanwhile, when a passenger is on the upper end of the pedal, the reverse rotation of the driving device is blocked by the touch switch arranged at the bottom of the pedal in the cab apron, so that the cab apron can not be lifted to prevent the shield door from being closed, and the problem of clamping injury caused by non-riding of the passenger is solved.
3. According to the cab apron folding device, the conductive sliding block is contacted with the conductive sheet through closing of the shield door, so that the cab apron driving device is controlled to rotate in the direction to achieve the cab apron folding effect, meanwhile, the cab apron is overturned to be folded through the matched arrangement among the alternating-current electromagnet, the baffle and the limiting block, the effect that after a passenger takes the cab apron, the cab apron is quickly folded without influencing the closing of the shield door and the vehicle door is achieved, the folding and unfolding efficiency of the cab apron is remarkably improved, and convenience is brought to the traveling of the passenger.
4. The retraction and release of the cab apron are controlled by the contact of the conductive sliding block and the conductive sheet, and the carbon dioxide gas filled in the cavity is heated and expanded by joule heat generated in the contact process of the conductive sliding block and the conductive sheet, so that the piston is pushed to move upwards, the upper end of the piston is driven to extrude the balancing weight to realize the movement of the balancing weight, the pedal is rotated by the change of the gravity center of the pedal, the effect of preventing the wheel from slipping backwards is achieved, and the riding safety of passengers is obviously improved.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of the ferry plate of the present invention;
FIG. 3 is a schematic structural view of the cab apron of the present invention as it is horizontally disposed;
FIG. 4 is a schematic view of the internal structure of the pedal of the present invention;
FIG. 5 is a schematic structural view of the shield door according to the present invention in an open state;
FIG. 6 is a structural diagram illustrating a closed state of the shield door according to the present invention;
FIG. 7 is a schematic view of the internal structure of the electromagnetic driving mechanism of the present invention;
fig. 8 is a schematic view of the internal structure of the gravity adjusting mechanism of the present invention.
In the figure: 1. a shielding window; 2. a shield door; 3. a vehicle door; 4. a cab apron; 41. a cavity; 42. a piston; 43. a first limit groove; 5. rotating the column; 51. an electromagnet; 52. a baffle plate; 53. a limiting block; 6. a pedal; 61. a touch switch; 62. a slide rail; 63. a balancing weight; 7. a second limit groove; 8. a cushion pad; 9. an opening; 10. a conductive slider; 101. a spring; 11. and (4) conducting strips.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, a rail transit cab apron includes a shielding window 1, a shielding door 2 is disposed on the back of the shielding window 1, a vehicle door 3 is disposed on the back of the shielding door 2, a rotating column 5 is rotatably connected to a side wall of the shielding window 1, a cab apron 4 is sleeved on the outer side of the rotating column 5, a second limiting groove 7 is disposed on the surface of the cab apron 4, a pedal 6 is slidably connected to the inside of the second limiting groove 7, a buffer cushion 8 is disposed between gaps of the shielding door 2 and the vehicle door 3, a gravity adjusting mechanism is disposed at the bottom of the pedal 6 and inside the cab apron 4, a first limiting groove 43 is disposed at the bottom of the cab apron 4 and outside the rotating column 5, an electromagnetic driving mechanism is disposed inside the first limiting groove 43, an opening 9 is disposed at a terminal end of the shielding door 2 and on a side close to the buffer cushion 8, and an electric driving mechanism is disposed inside the opening 9. The shielding door 2 and the vehicle door 3 are both in a closed state, when the shielding door 2 is opened (as shown in fig. 5), the shielding door 2 is opened, the conductive slider 10 moves along with the shielding door, when the shielding door 2 is in contact with the conductive sheet 11 arranged at the upper end of the cab apron 4, the electromagnet 51 is electrified, under the action of repulsion force of a magnetic strip inside the baffle 52, the rotating column 5 and the baffle 52 rotate towards the clockwise direction, the cab apron 4 deflects under the action of the limit block 53, the conductive sheet 11 is not in contact with the conductive slider 10 when the cab apron 4 rotates to the horizontal direction, the cab apron 4 does not deflect any more at the moment, a passenger sets up a ride at the moment, when the passenger sets up the pedal 6 on the cab apron 4, the bottom wall of the pedal 6 is squeezed to squeeze the touch switch 61, when an electric signal is transmitted to a vehicle control, the warning control room is reached, the passenger does not ride and is closed in a delayed way, and the gravity adjusting mechanism for reducing the situation of clamping of the passenger comprises a cavity 41 arranged at the bottom of the pedal 6, slide rail 62 has been seted up to the upper end of footboard 6, and the cavity 41 intussuseption is filled with carbon dioxide, and the left side upper end of cavity 41 is equipped with piston 42, and the other end of piston 42 just extends to slide rail 62 inside and is equipped with balancing weight 63, and the lower extreme of balancing weight 63 is equipped with touch switch 61. The electromagnetic driving mechanism comprises baffle plates 52 fixedly connected to two sides of the rotating column 5, electromagnets 51 are arranged at the upper ends of the baffle plates 52 and inside the first limiting grooves 43, limiting blocks 53 are symmetrically arranged at the lower ends of the electromagnets 51 along the rotating column 5, and the limiting blocks 53 are fixedly connected to the cab apron 4. The electric driving mechanism comprises a spring 101 fixedly connected inside the opening 9, the other end of the spring 101 is fixedly connected with a conductive sliding block 10, the lower end of the right side of the conductive sliding block 10 is fixedly provided with a conductive sheet 11, and the conductive sheet 11 is fixedly connected on the cab apron 4. When the vehicle door 3 and the shield door 2 are closed (as shown in fig. 6), the shield door 2 is closed, the conductive slider 10 moves in reverse direction and contacts with the conductive sheet 11 again, at this time, compared with the first closed state, the electromagnet 51 generates opposite magnetism at this time, under the action of the attraction force of the magnetic stripe inside the baffle 52, the rotating column 5 and the baffle 52 rotate in the counterclockwise direction, under the action of the limiting block 53, the cab apron 4 deflects, when the cab apron 4 rotates to the horizontal direction, the cab apron 4 is retracted to the side wall of the shield window 1, during the recycling process, because the cab apron 4 is obliquely installed, the vehicle of the passenger is prone to backward slide, because during the contact process of the conductive slider 10 and the conductive sheet 11, the generated joule heat continuously heats the carbon dioxide gas filled in the cavity 41, and further compresses the gas, the piston 42 is compressed, the upper end of the piston 42 presses the counterweight 63, make balancing weight 63 remove to the right, and then drive footboard 6 and take place anticlockwise rotation, the incline direction of footboard 6 can show to reduce the wheel and slide backward this moment, further strengthens passenger and takes safety. The shutter 52 is made of a magnetic material, and the left and right sides thereof have opposite magnetism. The ferry plate can be retracted and extended by ensuring the rotation of the driving rotating column 5. The counterweight 63 is provided with an oval shape, and the surface of the counterweight is provided with a smooth wear-resistant coating. So that the slight sliding of the weight 63 can realize the change of the gravity center of the weight 6, and further realize the anti-back-sliding effect.
The use method (working principle) of the invention is as follows:
at the beginning, the shield door 2 and the vehicle door 3 are both in a closed state, when the shield door 2 is opened (as shown in fig. 5), the shield door 2 is opened, the conductive slider 10 moves along with the opened shield door, when the shield door contacts with the conductive sheet 11 arranged at the upper end of the ferry plate 4, the electromagnet 51 is electrified, under the repulsive force with the magnetic strip inside the barrier 52, the rotating post 5 and the barrier 52 are rotated in the clockwise direction, under the action of the limiting block 53, the cab apron 4 deflects, when the cab apron rotates to the horizontal direction, the conducting strip 11 is not contacted with the conducting slide block 10, the cab apron 4 does not deflect any more, at the moment, a passenger sets up a ride, when a passenger is on the pedal 6 on the cab apron 4, the bottom wall of the pedal 6 is squeezed to squeeze the touch switch 61, and an electric signal is transmitted to the vehicle for operation, so that the passenger does not take the bus in the warning control room, the door is closed in a delayed manner, and the situation of clamping injury of the passenger is reduced;
when the vehicle door 3 and the shield door 2 are closed (as shown in fig. 6), the shield door 2 is closed, the conductive slider 10 moves in reverse direction and contacts with the conductive sheet 11 again, at this time, compared with the first closed state, the electromagnet 51 generates opposite magnetism at this time, under the action of the attraction force of the magnetic stripe inside the baffle 52, the rotating column 5 and the baffle 52 rotate in the counterclockwise direction, under the action of the limiting block 53, the cab apron 4 deflects, when the cab apron 4 rotates to the horizontal direction, the cab apron 4 is retracted to the side wall of the shield window 1, during the recycling process, because the cab apron 4 is obliquely installed, the vehicle of the passenger is prone to backward slide, because during the contact process of the conductive slider 10 and the conductive sheet 11, the generated joule heat continuously heats the carbon dioxide gas filled in the cavity 41, and further compresses the gas, the piston 42 is compressed, the upper end of the piston 42 presses the counterweight 63, make balancing weight 63 remove to the right, and then drive footboard 6 and take place anticlockwise rotation, the incline direction of footboard 6 can show to reduce the wheel and slide backward this moment, further strengthens passenger and takes safety.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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. The utility model provides a cab apron for track traffic, includes shielding window (1), its characterized in that: the shielding door is characterized in that a shielding door (2) is arranged on the back of the shielding window (1), a vehicle door (3) is arranged on the back of the shielding door (2), a rotating column (5) is rotatably connected to the side wall of the shielding window (1), an apron (4) is sleeved on the outer side of the rotating column (5), a second limiting groove (7) is formed in the surface of the apron (4), a pedal (6) is slidably connected to the inner portion of the second limiting groove (7), a cushion pad (8) is arranged between gaps of the shielding door (2) and the vehicle door (3), a gravity adjusting mechanism is arranged at the bottom of the pedal (6) and inside the apron (4), a first limiting groove (43) is formed in the bottom of the apron (4) and outside the rotating column (5), an electromagnetic driving mechanism is arranged inside the first limiting groove (43), an opening (9) is formed in one side, close to the cushion pad (8), of the tail end of the shielding door (2), an electric driving mechanism is arranged in the opening (9).
2. The cab apron for rail transit according to claim 1, characterized in that: gravity adjustment mechanism is including offering cavity (41) in footboard (6) bottom, slide rail (62) have been seted up to the upper end of footboard (6), cavity (41) intussuseption is filled with carbon dioxide gas, the left side upper end of cavity (41) is equipped with piston (42), the other end of piston (42) just extends to slide rail (62) inside and is equipped with balancing weight (63), the lower extreme of balancing weight (63) is equipped with touch switch (61).
3. The cab apron for rail transit according to claim 1, characterized in that: the electromagnetic driving mechanism comprises baffle plates (52) fixedly connected to two sides of the rotating column (5), electromagnets (51) are arranged at the upper ends of the baffle plates (52) and inside the first limiting grooves (43), limiting blocks (53) are symmetrically arranged at the lower ends of the electromagnets (51) along the rotating column (5), and the limiting blocks (53) are fixedly connected to the cab apron (4).
4. The cab apron for rail transit according to claim 1, characterized in that: the electric drive mechanism comprises a spring (101) fixedly connected inside the opening (9), the other end of the spring (101) is fixedly connected with a conductive sliding block (10), a conductive plate (11) is fixedly arranged at the lower end of the right side of the conductive sliding block (10), and the conductive plate (11) is fixedly connected to the cab apron (4).
5. The cab apron for rail transit according to claim 3, characterized in that: the baffle (52) is made of magnetic materials, and the left side and the right side of the baffle are opposite in magnetism.
6. The cab apron for rail transit according to claim 2, characterized in that: the balancing weight (63) is oval, and the surface of the balancing weight is provided with a smooth wear-resistant coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110921032.5A CN113501020A (en) | 2021-08-11 | 2021-08-11 | Cab apron for track traffic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110921032.5A CN113501020A (en) | 2021-08-11 | 2021-08-11 | Cab apron for track traffic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113501020A true CN113501020A (en) | 2021-10-15 |
Family
ID=78016335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110921032.5A Pending CN113501020A (en) | 2021-08-11 | 2021-08-11 | Cab apron for track traffic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113501020A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113696911A (en) * | 2021-10-27 | 2021-11-26 | 彭志平 | Platform cab apron device is crossed to general fast passenger train door of railway |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080016491A (en) * | 2006-08-18 | 2008-02-21 | 나부테스코 가부시키가이샤 | Step device for platform |
| JP2012201202A (en) * | 2011-03-25 | 2012-10-22 | Mitsubishi Electric Building Techno Service Co Ltd | Gap covering device for platform |
| CN106627598A (en) * | 2016-11-09 | 2017-05-10 | 南京九致信息科技有限公司 | Nesting pedal device for subway platform and working method for nesting pedal device |
| CN206344807U (en) * | 2016-11-09 | 2017-07-21 | 南京九致信息科技有限公司 | Nested device with pedal for subway platform |
| CN110356421A (en) * | 2019-08-22 | 2019-10-22 | 覃春梅 | A kind of subway platform protection mechanism |
| CN112610109A (en) * | 2021-01-14 | 2021-04-06 | 义乌市贻裳电子商务有限公司 | Subway shield door capable of automatically adjusting opening time according to pedestrian flow |
-
2021
- 2021-08-11 CN CN202110921032.5A patent/CN113501020A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080016491A (en) * | 2006-08-18 | 2008-02-21 | 나부테스코 가부시키가이샤 | Step device for platform |
| JP2012201202A (en) * | 2011-03-25 | 2012-10-22 | Mitsubishi Electric Building Techno Service Co Ltd | Gap covering device for platform |
| CN106627598A (en) * | 2016-11-09 | 2017-05-10 | 南京九致信息科技有限公司 | Nesting pedal device for subway platform and working method for nesting pedal device |
| CN206344807U (en) * | 2016-11-09 | 2017-07-21 | 南京九致信息科技有限公司 | Nested device with pedal for subway platform |
| CN110356421A (en) * | 2019-08-22 | 2019-10-22 | 覃春梅 | A kind of subway platform protection mechanism |
| CN112610109A (en) * | 2021-01-14 | 2021-04-06 | 义乌市贻裳电子商务有限公司 | Subway shield door capable of automatically adjusting opening time according to pedestrian flow |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113696911A (en) * | 2021-10-27 | 2021-11-26 | 彭志平 | Platform cab apron device is crossed to general fast passenger train door of railway |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101269662A (en) | Improvement of underground automobile door and platform gap structure | |
| CN113501020A (en) | Cab apron for track traffic | |
| CN111851361B (en) | ETC equipment capable of stopping card running | |
| CN112265553A (en) | Platform door passive side baffle | |
| CN203075064U (en) | Light folding electric wheelchair | |
| CN111809485A (en) | Detection car that road surface is sunken to be detected and is sheltered from temporarily | |
| CN203334889U (en) | Horizontal moving type cabin door for medical air pressurized oxygen cabin | |
| CN213898604U (en) | Multifunctional subway shield door | |
| CN214697500U (en) | Electronic translation cleaning door of magnetic suspension | |
| CN213799619U (en) | Platform door passive side baffle | |
| CN207568398U (en) | A kind of big traffic volume rail transit safety door | |
| CN112963083A (en) | Supplementary people equipment of preventing pressing from both sides when subway door is closed | |
| CN2880983Y (en) | Mobile extension automobile garage | |
| CN208085724U (en) | A kind of bridge construction material transport vehicle | |
| CN216089278U (en) | It prevents effectual draw-bar box that shifts to possess self-locking function | |
| CN208101975U (en) | A kind of subway platform gap is anti-to step on sky device | |
| CN2411324Y (en) | Multifunction automatic revolving door | |
| CN211309733U (en) | Mobile device based on lifting of garbage can | |
| CN115195792B (en) | Convenient to use's wisdom subway platform | |
| CN211173627U (en) | Anti-jumping structure of rail under shower door | |
| CN218519668U (en) | Rail transit device capable of preventing object from falling | |
| CN209889579U (en) | Self-discharging type electric garbage cleaning and transporting vehicle | |
| CN220302012U (en) | Subway emergency exit convenient to maintain | |
| CN211004097U (en) | Elevator layer door anticreep device | |
| CN219138757U (en) | Bidirectional opening and closing structure for truck tail door |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211015 |
|
| RJ01 | Rejection of invention patent application after publication |