CN113216785A - Automatic lifting back door not opened completely - Google Patents
Automatic lifting back door not opened completely Download PDFInfo
- Publication number
- CN113216785A CN113216785A CN202110592170.3A CN202110592170A CN113216785A CN 113216785 A CN113216785 A CN 113216785A CN 202110592170 A CN202110592170 A CN 202110592170A CN 113216785 A CN113216785 A CN 113216785A
- Authority
- CN
- China
- Prior art keywords
- door leaf
- fixed
- rotary door
- rotary
- oil cylinder
- 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.)
- Granted
Links
- 239000003921 oil Substances 0.000 claims abstract description 20
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 18
- 230000007306 turnover Effects 0.000 claims abstract description 18
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/50—Power-operated mechanisms for wings using fluid-pressure actuators
- E05F15/53—Power-operated mechanisms for wings using fluid-pressure actuators for swinging wings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J5/00—Doors
- B60J5/10—Doors arranged at the vehicle rear
- B60J5/108—Doors arranged at the vehicle rear for load transporting vehicles or public transport, e.g. lorries, trucks, buses
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
- E05B83/02—Locks for railway freight-cars, freight containers or the like; Locks for the cargo compartments of commercial lorries, trucks or vans
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
- E05B85/04—Strikers
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
- E05B85/20—Bolts or detents
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
- E05Y2900/53—Type of wing
- E05Y2900/531—Doors
- E05Y2900/532—Back doors or end doors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The incompletely opened automatic lifting back door comprises a rotary door leaf, a hydraulic oil cylinder, two guide plates, two turnover plates, a locking safety hook and a locking pin shaft, wherein the outer ends of the two turnover plates are respectively fixed at the upper ends of vertical bars of the two rotary door leaves, the two guide plates are respectively fixed at the upper end of the rear part of a carriage, guide grooves are respectively formed in the guide plates, the guide grooves face the upper rear part, and a rotating shaft penetrating through the guide grooves is fixed on the turnover plates; the rear end of the carriage is fixedly provided with an oil cylinder base, the lower end of the hydraulic oil cylinder is hinged on the oil cylinder base, and the upper end of the hydraulic oil cylinder is hinged in the middle of the turnover plate; the locking safety hook is fixed at the middle lower part of the rotary door leaf towards the back, and the locking pin shaft is fixed at the rear end of the carriage. The incompletely opened automatic lifting back door disclosed by the invention realizes the opening and closing of the back door by adopting a pair of oil cylinders, can complete a plurality of actions through one-key control, and is convenient to realize concise and intelligent control.
Description
Technical Field
The invention relates to an automatic lifting back door, in particular to an automatic lifting back door which is not opened completely.
Background
The rear door of the boxcar realizes the blocking of the rear end of the boxcar so as to ensure that goods or materials are not scattered from the rear end of the boxcar in the process of transporting goods. The carriage back door that uses commonly at present is both sides open-type, is manual opening and closing usually, and this kind of left and right sides open-type door can not only occupy the space that exceeds the carriage width, and manual opening is comparatively inconvenient moreover. The carriage is also of an upward opening type, and for an upward opening type vehicle door, the upward opening type vehicle door is opened in an upward rotating mode, is higher in height and is not opened manually, so that the vehicle door needs to be opened by hydraulic pressure or air cylinder driving.
For the existing upper opening type carriage back door, more than 2 pairs of oil cylinders are usually used for driving, firstly, the locking safety hook is separated from the fixed lock pin, and then, the back door is driven to rotate so as to realize the opening of the back door.
Disclosure of Invention
The present invention has been made to overcome the above-mentioned problems, and an object of the present invention is to provide an automatic lifting back door which is not fully opened.
The incompletely opened automatic lifting back door comprises a rotary door leaf, a hydraulic oil cylinder, two guide plates, two turnover plates, a locking safety hook and a locking pin shaft, wherein the rotary door leaf consists of two rotary door leaf vertical bars arranged in parallel and a plurality of rotary door leaf cross bars, and two ends of each rotary door leaf cross bar are fixed on the two rotary door leaf vertical bars; the method is characterized in that: the outer ends of the two turnover plates are respectively fixed at the upper ends of the two vertical bars of the rotary door leaf, the two guide plates are respectively fixed at the upper end of the rear part of the carriage, guide grooves are respectively formed in the guide plates, the guide grooves face the upper rear part, and a rotating shaft penetrating through the guide grooves is fixed on the turnover plates; the rear end of the carriage is fixedly provided with an oil cylinder base, the lower end of the hydraulic oil cylinder is hinged on the oil cylinder base through an oil cylinder lower rotating shaft, and the upper end of the hydraulic oil cylinder is hinged on the middle part of the turnover plate through an oil cylinder upper rotating shaft; the locking safety hook faces backwards and is fixed at the middle lower part of the rotary door leaf, the locking pin shaft is fixed at the rear end of the carriage, and the locking safety hook is clamped on the locking pin shaft to realize locking after the rotary door leaf is closed.
The invention relates to an incompletely opened automatic lifting back door, wherein a fixed door leaf is fixed at the back end of a carriage, the fixed door leaf consists of two fixed door leaf vertical bars, a first fixed door leaf transverse bar and a second fixed door leaf transverse bar, the two fixed door leaf vertical bars are arranged in parallel, and two ends of the first fixed door leaf transverse bar and the second fixed door leaf transverse bar are fixed on the upper two fixed door leaf vertical bars.
According to the incompletely opened automatic lifting back door, a fixed door leaf baffle is arranged between the first fixed door leaf cross bar and the second fixed door leaf cross bar; the rotary door leaf cross bar comprises a first rotary door leaf cross bar, a second rotary door leaf cross bar and a third rotary door leaf cross bar which are sequentially arranged from top to bottom, and rotary door leaf baffles are arranged on the first rotary door leaf cross bar and the second rotary door leaf cross bar; when the rotary door leaf is in a closed state, the lower end of the fixed door leaf baffle is flush with or overlapped with the upper end of the rotary door leaf, so that the rear end of the carriage is sealed.
According to the incompletely opened automatic lifting back door, the upper wedge block is arranged in the middle of the rotary door leaf, and the lower wedge block matched with the upper wedge block is fixed at the rear end of the carriage; when the rotary door leaf is in a closed state, the upper wedge block and the lower wedge block are buckled together.
According to the incompletely opened automatic lifting back door, the two sides of the upper end of the rotary door leaf are fixedly provided with the rotary door leaf reinforcing members, and the rotary door leaf reinforcing members are provided with the back outline marker lamps.
According to the incompletely opened automatic lifting back door, the lamp mounting plate is arranged between the second rotary door leaf cross bar and the third rotary door leaf cross bar on the rotary door leaf, and the rear combination lamp, the license plate lamp and the rear fog lamp are arranged on the lamp mounting plate.
According to the incompletely opened automatic lifting back door, the fixed door leaf baffle and the rotary door leaf baffle are in a structure of combining a transverse corrugated structure, a vertical corrugated structure, a square pipe and a flat plate or combining a square pipe and a bent piece.
The invention has the beneficial effects that: the incompletely opened automatic lifting back door is provided with a rotary door leaf, a turnover plate, a guide plate, a locking safety hook, a locking pin shaft and a hydraulic oil cylinder, wherein a guide groove facing backwards and upwards is formed in the guide plate, the rotary door leaf is fixed on a carriage through a rotating shaft which is fixed on the turnover plate and penetrates through the guide groove, so that when the rotary door leaf is in a closed state, the rotary door leaf is clamped into the locking pin shaft through the locking safety hook to realize locking and closing of the rotary back door, and the locking pin shaft falls to the lower end of the guide groove; when the rotary door leaf is opened, the hydraulic oil cylinder firstly drives the turnover plate to be communicated with the rotary door leaf to move upwards until the rotating shaft moves to the upper end of the guide groove, the locking safety hook on the rotary door leaf is also taken off from the locking pin shaft at the moment, and the rotary door leaf rotates around the rotating shaft along with the continuous extension of the hydraulic oil cylinder, so that the opening of the rotary door leaf is realized. Therefore, the incompletely opened automatic lifting back door disclosed by the invention realizes the opening and closing of the back door by adopting a pair of oil cylinders, can finish a plurality of actions through one-key control, and is convenient to realize concise and intelligent control.
Drawings
FIG. 1 is a schematic structural view of an incompletely opened automatic lifting back door of the present invention;
FIG. 2 is a left side view of the fixed door leaf of the present invention;
FIG. 3 is a front view of the fixed door leaf of the present invention;
fig. 4 is a front view of the rotary door leaf according to the present invention;
fig. 5 and 6 are schematic opening views of the incompletely opened automatic lifting back door of the present invention.
In the figure: 1 carriage roof side rail, 2 deflector, 3 rotation axis, 4 returning face plates, 5 fixed door leaf vertical bar, 6 rotatory door leaf vertical bar, 7 first fixed door leaf horizontal bar, 8 fixed door leaf, 9 second fixed door leaf horizontal bar, 10 first rotatory door leaf horizontal bar, 11 hydraulic cylinder, 12 cylinder bases, 13 upper wedge block, 14 lower wedge block, 15 locking safety hook, 16 locking pin shafts, 17 third rotatory door leaf horizontal bar, 18 dustproof protective cover, 19 carriage lower boundary beam, 20 carriages, 21 carriage stand columns, 22 grooves, 23 cylinder support columns, 24 cylinder lower rotation axis, 25 cylinder upper rotation axis, 26 back clearance lamp, 27 rotatory door leaf reinforcement, 28 rotatory door leaf, 29 second rotatory door leaf horizontal bar, 30 lamp mounting panels, 31 back combination lamps, 32 license plate lamps, 33 back fog lamps, 34 guide grooves.
Detailed Description
The invention is further described with reference to the following figures and examples.
As shown in fig. 1, a schematic structural diagram of an incompletely opened automatic lifting back door of the present invention is shown, which is composed of a guide plate 2, a turnover plate 4, a rotary door leaf 28, a locking safety hook 15, a locking pin shaft 16 and a hydraulic oil cylinder 11, fig. 4 shows a front view of the rotary door leaf of the present invention, the rotary door leaf 28 is composed of two parallel rotary door leaf vertical bars 6 and a plurality of rotary door leaf horizontal bars, the turnover plate 4 is fixed on the upper ends of the two rotary door leaf vertical bars 6, the guide plate 2 is fixed on the upper end of the back part of the carriage 20, a guide groove 34 is opened on the guide plate 2, and the guide groove 34 is directed to the upper rear part. The front end of the roll-over plate 4 is fixed with a rotating shaft 3 passing through the guide groove 34, and the rear end of the roll-over plate 4 is fixed on the rotating door panel vertical bar 6. The two sides of the carriage 20 are respectively provided with a hydraulic oil cylinder 11, the lower end of the hydraulic oil cylinder 11 is hinged on the oil cylinder base 12 through an oil cylinder lower rotating shaft 24, and the upper end of the hydraulic oil cylinder 11 is hinged on the middle part of the turnover plate 4 through an oil cylinder upper rotating shaft 24. The locking safety hook 15 is disposed at the middle lower portion of the rotary door leaf 28, and a locking pin shaft 16 engaged with the locking safety hook 15 is fixed to the car 20.
When the rotary door leaf 28 is in a closed state, the locking safety hook 15 on the rotary door leaf 28 is clamped on the locking pin shaft 16, so that the rotary door leaf 28 is fastened at the rear end of the carriage 20, and the rear end of the carriage 20 is sealed; the rotary shaft 3 fixed to the flipping panel 4 is positioned at the lower end of the guide groove 24. When the swing door 28 is opened, the hydraulic rod of the hydraulic cylinder 11 is extended to first drive the roll-over plate 4 to move up together with the swing door 28 until the rotation shaft 3 moves up from the lower end of the guide groove 34 to the upper end of the guide groove 34. With the further extension of the hydraulic rod of the hydraulic cylinder 11, the turning plate 4 is driven to rotate around the rotating shaft 3 together with the rotating door leaf 28, so as to open the rotating door leaf 28, and the opening angle of the rotating door leaf 28 can be controlled by controlling the extension length of the hydraulic cylinder 11.
In order to further ensure the closed state of the rotating door 28, the middle part of the rotating door 28 is fixed with an upper wedge 13, the rear end of the carriage 20 is provided with a lower wedge 14 matched with the upper wedge 13, and when the rotating door 28 is in the closed state, the upper wedge 13 is clamped into the lower wedge 14, so that the firmness of the rotating door 28 when the rotating door is closed is ensured.
In order to ensure that the hydraulic oil cylinders 11 on the two sides do not exceed the width of the carriage 20, the rear end of the carriage 20 is provided with a groove 22, an oil cylinder support column 23 and the hydraulic oil cylinders 11 are arranged in the groove 22 in a hidden mode, the lower ends of the oil cylinder support columns 23 are fixed on a carriage lower edge beam 19, and an oil cylinder base 12 is fixed at the upper ends of the oil cylinder support columns 23.
The rear end of the car 20 is also shown provided with a fixed door leaf 8, the fixed door leaf 8 being located between the rotating door leaf 20 and the rear end of the car 20. As shown in fig. 2 and fig. 3, which respectively show a left view and a front view of the fixed door leaf in the present invention, the fixed door leaf 8 is shown to be composed of two fixed door leaf vertical bars 5 arranged in parallel, and a first fixed door leaf horizontal bar 7 and a second fixed door leaf horizontal bar 9, both ends of the first and second fixed door leaf horizontal bars (7, 9) are fixed on the two fixed door leaf vertical bars 5, and the first fixed door leaf horizontal bar 7 is located above the second fixed door leaf horizontal bar 9. A fixed door leaf baffle is arranged between the first fixed door leaf horizontal bar 7 and the second fixed door leaf horizontal bar 9.
The shown rotary door leaf 30 consists of two rotary door leaf vertical bars 6, a first rotary door leaf horizontal bar 10, a second rotary door leaf horizontal bar 29 and a third rotary door leaf horizontal bar 17, the two rotary door leaf vertical bars 6 are arranged in parallel, the first, second and third rotary door leaf horizontal bars (10, 29, 17) are arranged from top to bottom, and a rotary door leaf baffle plate is arranged between the first rotary door leaf horizontal bar 10 and the second rotary door leaf horizontal bar 29. In order to ensure the sealing performance of the car 20 when the rotary door leaf 28 is closed, when the rotary door leaf 28 is in a closed state, the lower edge of the fixed door leaf baffle is flush with or partially overlapped with the upper edge of the rotary door leaf baffle so as to ensure the sealing performance of the rear end of the car 20.
The upper end of the shown revolving door 28 is fixed with revolving door reinforcements 27 on both sides to ensure a good security of the revolving door 28. The rear delineator 26 is provided on the revolving door leaf reinforcement 27. A lamp mounting plate 30 is arranged between the second rotary door cross bar 29 and the third rotary door cross bar 17 on the rotary door 28, and a rear combination lamp 31, a license plate lamp 32 and a rear fog lamp 33 are arranged on the lamp mounting plate 30. The fixed door leaf baffle and the rotary door leaf baffle can adopt the combination form of horizontal corrugation, vertical corrugation, combination of a square tube and a flat plate, and combination of a square tube and a bent piece.
Claims (7)
1. An incompletely opened automatic lifting back door comprises a rotary door leaf (28), a hydraulic oil cylinder (11), two guide plates (2), two turnover plates (4), a locking safety hook (15) and a locking pin shaft (16), wherein the rotary door leaf consists of two rotary door leaf vertical bars (6) arranged in parallel and a plurality of rotary door leaf cross bars, and two ends of each rotary door leaf cross bar are fixed on the two rotary door leaf vertical bars; the method is characterized in that: the outer ends of the two turnover plates are respectively fixed at the upper ends of the two vertical bars of the rotary door leaf, the two guide plates are respectively fixed at the upper end of the rear part of the carriage (20), guide grooves (34) are respectively formed in the guide plates, the guide grooves face the upper rear part, and a rotating shaft (3) penetrating through the guide grooves is fixed on the turnover plates; an oil cylinder base (12) is fixed at the rear end of the carriage, the lower end of the hydraulic oil cylinder is hinged to the oil cylinder base through an oil cylinder lower rotating shaft (24), and the upper end of the hydraulic oil cylinder is hinged to the middle part of the turnover plate through an oil cylinder upper rotating shaft; the locking safety hook faces backwards and is fixed at the middle lower part of the rotary door leaf, the locking pin shaft is fixed at the rear end of the carriage, and the locking safety hook is clamped on the locking pin shaft to realize locking after the rotary door leaf is closed.
2. An incompletely opened automatically liftable rear door according to claim 1, wherein: the rear end of the carriage (20) is fixed with a fixed door leaf (8), the fixed door leaf comprises two fixed door leaf vertical bars (5), a first fixed door leaf horizontal bar (7) and a second fixed door leaf horizontal bar (9), the two fixed door leaf vertical bars are arranged in parallel, and two ends of the first fixed door leaf horizontal bar and the second fixed door leaf horizontal bar are fixed on the two fixed door leaf vertical bars.
3. An incompletely opened automatically liftable rear door according to claim 2, wherein: a fixed door leaf baffle is arranged between the first fixed door leaf horizontal bar (7) and the second fixed door leaf horizontal bar (8); the rotary door leaf cross bar comprises a first rotary door leaf cross bar (10), a second rotary door leaf cross bar (29) and a third rotary door leaf cross bar (17) which are sequentially arranged from top to bottom, and rotary door leaf baffles are arranged on the first rotary door leaf cross bar and the second rotary door leaf cross bar; when the rotary door leaf (28) is in a closed state, the lower end of the fixed door leaf baffle is flush with or overlapped with the upper end of the rotary door leaf, so that the rear end of the carriage is sealed.
4. An incompletely opened automatically liftable rear door according to claim 1 or 2, wherein: an upper wedge block (13) is arranged in the middle of the rotary door leaf (28), and a lower wedge block (14) matched with the upper wedge block is fixed at the rear end of the carriage (20); when the rotary door leaf is in a closed state, the upper wedge block and the lower wedge block are buckled together.
5. An incompletely opened automatically liftable rear door according to claim 1 or 2, wherein: and rotary door leaf reinforcing members (27) are fixed on two sides of the upper end of the rotary door leaf (28), and rear outline-indicating lamps (26) are arranged on the rotary door leaf reinforcing members.
6. An incompletely opened automatically liftable rear door according to claim 3, wherein: and a lamp mounting plate (30) is arranged between the second rotary door leaf horizontal bar (29) and the third rotary door leaf horizontal bar (17) on the rotary door leaf (8), and a rear combination lamp (31), a license plate lamp (32) and a rear fog lamp (33) are arranged on the lamp mounting plate.
7. An incompletely opened automatically liftable rear door according to claim 3, wherein: the fixed door leaf baffle and the rotary door leaf baffle are in a structure of combining horizontal corrugations, vertical corrugations, square pipes and flat plates or combining square pipes and bent pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110592170.3A CN113216785B (en) | 2021-05-28 | 2021-05-28 | Incompletely opened automatic lifting back door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110592170.3A CN113216785B (en) | 2021-05-28 | 2021-05-28 | Incompletely opened automatic lifting back door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113216785A true CN113216785A (en) | 2021-08-06 |
| CN113216785B CN113216785B (en) | 2022-12-23 |
Family
ID=77099078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110592170.3A Active CN113216785B (en) | 2021-05-28 | 2021-05-28 | Incompletely opened automatic lifting back door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113216785B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114056213A (en) * | 2021-12-13 | 2022-02-18 | 山东通华专用车辆股份有限公司 | Structural device with uniform spreading and unloading functions |
| KR20230060722A (en) * | 2021-10-28 | 2023-05-08 | 짐캐리 주식회사 | Method and device for cargo box of auto locking type |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATA88298A (en) * | 1998-05-22 | 1999-03-15 | Hoerbiger Gmbh | ARRANGEMENT FOR HYDRAULICALLY OPERATING A REAR LID |
| CN106395207A (en) * | 2016-10-31 | 2017-02-15 | 中国重汽集团柳州运力专用汽车有限公司 | Locking device for rear door of garbage truck |
| CN211422274U (en) * | 2019-11-25 | 2020-09-04 | 山东畅达专用车有限公司 | Automatic open-type carriage back door |
-
2021
- 2021-05-28 CN CN202110592170.3A patent/CN113216785B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATA88298A (en) * | 1998-05-22 | 1999-03-15 | Hoerbiger Gmbh | ARRANGEMENT FOR HYDRAULICALLY OPERATING A REAR LID |
| CN106395207A (en) * | 2016-10-31 | 2017-02-15 | 中国重汽集团柳州运力专用汽车有限公司 | Locking device for rear door of garbage truck |
| CN211422274U (en) * | 2019-11-25 | 2020-09-04 | 山东畅达专用车有限公司 | Automatic open-type carriage back door |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20230060722A (en) * | 2021-10-28 | 2023-05-08 | 짐캐리 주식회사 | Method and device for cargo box of auto locking type |
| KR102634623B1 (en) * | 2021-10-28 | 2024-02-07 | 짐캐리 주식회사 | Method and device for cargo box of auto locking type |
| CN114056213A (en) * | 2021-12-13 | 2022-02-18 | 山东通华专用车辆股份有限公司 | Structural device with uniform spreading and unloading functions |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113216785B (en) | 2022-12-23 |
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