CN112878846A - Heat preservation cabin door opening and closing device and method for opening and closing cabin door - Google Patents
Heat preservation cabin door opening and closing device and method for opening and closing cabin door Download PDFInfo
- Publication number
- CN112878846A CN112878846A CN202110057839.9A CN202110057839A CN112878846A CN 112878846 A CN112878846 A CN 112878846A CN 202110057839 A CN202110057839 A CN 202110057839A CN 112878846 A CN112878846 A CN 112878846A
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- door
- cabin
- opening
- closing
- cabin door
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- 238000004321 preservation Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims description 16
- 238000012360 testing method Methods 0.000 claims abstract description 23
- 238000009413 insulation Methods 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000011160 research Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
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Classifications
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- 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
- E05F15/56—Power-operated mechanisms for wings using fluid-pressure actuators for horizontally-sliding wings
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention discloses a heat preservation cabin door opening and closing device which comprises a test bed, an unlocking device, a cabin door opening and closing support, a door opening oil cylinder and a door closing oil cylinder, wherein the unlocking device comprises an unlocking oil cylinder, an unlocking slide seat, a U-shaped block and a cabin door locking key, the U-shaped block is slidably mounted on the unlocking slide seat, a piston rod of the unlocking oil cylinder is connected with the U-shaped block to drive the U-shaped block to slide on the unlocking slide seat, the cabin door locking key comprises a rib plate, a key handle and a key head, and the key handle extends into an opening of the U-shaped block to drive the key head to rotate to open and close a lock when the U-shaped block slides; the door opening oil cylinder and the door closing oil cylinder are both arranged on the cabin door switch bracket to open and close the cabin door. The invention can realize the periodical opening and closing of the heat preservation cabin door, namely unlocking, opening, closing and locking, and the reliability of the cabin door is inspected through the times of opening and closing the cabin door.
Description
Technical Field
The invention belongs to the field of insulation cabins, and particularly relates to an insulation cabin door opening and closing device and a method for opening and closing a cabin door.
Background
In the field of aerospace, in order to ensure a good working state, a ground launching system can be used for arranging a heat-insulating cabin for aerospace products, and the temperature in the heat-insulating cabin is maintained within a certain range through an air conditioning system.
Aerospace products are generally stored and transported by adopting a heat preservation cabin (box), wherein the heat preservation cabin is required to be provided with a cabin door so as to provide an avoidance space for the aerospace products to enter and exit the heat preservation cabin in a door opening state and provide a constant temperature and humidity environment for the aerospace products in a door closing state.
The heat preservation cabin is widely applied, the cabin doors need to be opened and closed when the operation and maintenance of various single machines, the use and maintenance of various subsystems and the like, the cabin doors are widely applied, when a novel cabin door is designed, the technology and the service life of the novel cabin door are unknown, the heat preservation cabin door needs to be subjected to experimental research in order to ensure that the performance and the function of the heat preservation cabin door meet the use requirements, but the reliability research about the opening and closing of the cabin door is not related at present.
Disclosure of Invention
In view of the above drawbacks and needs of the prior art, the present invention provides an opening and closing apparatus for a thermal insulation cabin door and a method for opening and closing the door thereof, which realize the periodic opening and closing of the door of the thermal insulation cabin, and examine the reliability of the door through the number of times the door is opened and closed.
To achieve the above objects, according to one aspect of the present invention, there is provided an insulated cabin door opening and closing apparatus, a gas spring assembly being provided between a back surface of a door and an inner wall of a cabin body, the insulated cabin door opening and closing apparatus comprising a test stand, an unlocking device, a door opening and closing bracket, a door opening cylinder, and a door closing cylinder, wherein:
the unlocking device comprises an unlocking oil cylinder, an unlocking slide seat, a U-shaped block and a cabin door locking key, wherein the unlocking oil cylinder and the unlocking slide seat are both installed on the test bed, the U-shaped block is installed on the unlocking slide seat in a sliding manner, a piston rod of the unlocking oil cylinder is connected with the U-shaped block so as to drive the U-shaped block to slide on the unlocking slide seat, the cabin door locking key comprises a rib plate, a key handle and a key head used for extending into a lock of the cabin door, the key handle and the key head are respectively connected to two ends of the rib plate, so that the cabin door locking key is integrally Z-shaped, the key handle extends into an opening of the U-shaped block so as to drive the key head to rotate to open and close the lock when the U-shaped block slides;
the cabin door switch bracket is arranged on the test bed;
the door opening oil cylinder is arranged on the cabin door switch bracket to push the cabin door open after unlocking;
the door closing oil cylinder is arranged on the cabin door switch bracket to push the cabin door to be closed after the cabin door is opened.
Preferably, the door opening device further comprises an operating arm which is integrally triangular, wherein the operating arm is provided with a first end, a second end and a third end which are triangularly arranged, the first end of the operating arm is hinged on the door opening switch bracket through a first hinge shaft, the second end of the operating arm is hinged on a piston rod of a door opening oil cylinder through a second hinge shaft, the end part, away from the second end of the operating arm, of the door opening oil cylinder is hinged on the door opening switch bracket, and the third end of the operating arm is used for pushing open the door.
Preferably, a wheel fork is installed at the third end of the operating arm, and a rubber wheel is connected to the wheel fork.
Preferably, the piston rod of the door opening cylinder extends after unlocking to push the hatch door from the front side of the hatch door and retracts after pushing the hatch door, and the piston rod of the door closing cylinder extends after the hatch door is opened to close the hatch door from the back side of the hatch door and retracts after closing the hatch door.
Preferably, a protective sleeve is sleeved on the key handle.
Preferably, the test bench includes the platform and installs base I and base II on the platform, thermal-insulation chamber is accepted in the cooperation of base I and base II jointly.
Preferably, the piston rod of the door-opening oil cylinder retracts the door after the door crosses the working dead point of the gas spring assembly, and then the door is opened by itself under the action of the gas spring assembly.
Preferably, a wheel fork is installed on a piston rod of the door closing oil cylinder, and a rubber wheel is installed on the wheel fork.
Preferably, the opening of the U-shaped block faces upwards, the cabin door is installed on the cabin body of the thermal insulation cabin through a horizontal rotating shaft so as to realize the door opening from bottom to top, and the lockset is installed at the lower end of the cabin door.
According to another aspect of the present invention, there is also provided a method for opening and closing a door of an insulated cabin using the opening and closing device, comprising the steps of:
1) initially, piston rods of the unlocking oil cylinder, the door opening oil cylinder and the door closing oil cylinder are all in a retraction state;
2) a piston rod of the unlocking oil cylinder extends out to drive the U-shaped block to move, the U-shaped block pushes the cabin door lock key to rotate to unlock the lockset, and an extension rod of the unlocking oil cylinder keeps the extending state unchanged;
3) a piston rod of the door opening oil cylinder extends out to push the cabin door, the cabin door automatically opens under the action of the gas spring assembly after passing through a working dead point of the gas spring assembly connected with the back of the cabin door, and then the piston rod of the door opening oil cylinder retracts;
4) after the cabin door is automatically opened in place, the door closing oil cylinder pushes the cabin door to rotate until the cabin door is closed, a key handle of a cabin door lock key enters an opening of the U-shaped block in the process, and then a piston rod of the door closing oil cylinder retracts;
5) and a piston rod of the unlocking oil cylinder retracts, a cabin door lock key is pulled to rotate in the retracting process, the closing of a cabin door lock is completed, the cabin door is locked, and the test process is completed.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
1) the invention drives the U-shaped block to move and the cabin door lock key to rotate through the movement of the piston rod of the unlocking oil cylinder, thereby realizing the opening and closing of the lockset, and obtaining the use conditions of the cabin door and the gas spring assembly on the cabin door through the times of opening the cabin door by the door opening oil cylinder and closing the cabin door by the door closing oil cylinder after unlocking, thereby inspecting the reliability of the cabin door, having high automation degree, needing no manual operation and effectively improving the test efficiency.
2) The unlocking device can automatically open and close the lock on the cabin door, and the door opening oil cylinder and the door closing oil cylinder can be matched with the air spring on the cabin door to open and close the cabin door together, so that the unlocking device is convenient to open and close the lock and the door, and has high reliability.
3) The door opening oil cylinder disclosed by the invention pushes the cabin door open by controlling the operating arm, the operating arm is equivalent to the extension of a piston rod of the door opening oil cylinder, and the operating arm is connected with the door opening oil cylinder and the cabin door switch bracket in a hinged manner, so that the aim of saving labor can be achieved when the cabin door is opened.
Drawings
FIG. 1 is a perspective view of an insulated compartment positioned in one of the perspectives on the present invention;
FIG. 2 is a perspective view of the insulated compartment from another perspective on the present invention;
FIG. 3 is a front view of the holding chamber placed on the present invention;
FIG. 4 is a left side view of the insulated compartment of the present invention positioned over the present invention;
FIG. 5 is a perspective view of the operating arm of the present invention;
FIG. 6 is a perspective view of the door lock key of the present invention;
fig. 7 is an enlarged view at a in fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Referring to fig. 1 to 7, a gas spring assembly is arranged between the back of a cabin door 101 and the inner wall of a cabin body, and plays a role in supporting, buffering, braking, height adjustment and angle adjustment for the cabin door 101, and the heat preservation cabin door opening and closing device comprises a test bed 1, an unlocking device 2, a cabin door 101 opening and closing support, a door opening oil cylinder 4 and a door closing oil cylinder 5, wherein:
the test bed 1 comprises a platform 11, a base I12 and a base II 13 which are arranged on the platform 11, wherein the base I12 and the base II 13 are matched with each other to support the heat preservation cabin 100; the test stand 1 further comprises an unlocking support 14 mounted on the platform 11.
The unlocking device 2 comprises an unlocking oil cylinder 21, an unlocking slide carriage 22, a U-shaped block 23 and a cabin door locking key 24, wherein the unlocking oil cylinder 21 and the unlocking slide carriage 22 are both installed on the test bed 1, the unlocking oil cylinder 21 is preferably installed on an unlocking support 14 of the test bed 1, the U-shaped block 23 is slidably installed on the unlocking slide carriage 22, a slide rail is arranged on the unlocking slide carriage 22, the U-shaped block 23 can slide along the unlocking slide carriage 22, a piston rod of the unlocking oil cylinder 21 is connected with the U-shaped block 23 to drive the U-shaped block 23 to slide on the unlocking slide carriage 22, the cabin door locking key 24 comprises a rib plate 241, a key handle 242 and a key head 243 extending into a lock of the cabin door 101, the key handle 242 and the key head 243 are respectively connected at two ends of the rib plate 241, so that the cabin door locking key 24 is in a zigzag shape as a whole, and the key handle 242 extends into an opening of, when the U-shaped block 23 slides, the key head 243 is driven to rotate to open and close the lock, that is, when the U-shaped block 23 slides, the key handle 242 slides on a side wall of the opening of the U-shaped block 23 while moving along with the U-shaped block 23 in the opening of the U-shaped block 23, and such movement of the key handle 242 drives the rib plate 241 and the key head 243 to rotate, so that the key head 243 opens or closes the lock. Preferably, a protective sleeve 244 is sleeved on the key handle 242 to protect the key handle 242.
The hatch door 101 switch bracket is installed on the test bed 1, the door-opening cylinder 4 is installed on the hatch door 101 switch bracket to push the hatch door 101 open after unlocking, and a piston rod of the door-opening cylinder 4 extends to push the hatch door 101 open from the front of the hatch door 101 and retracts after pushing the hatch door 101 open after unlocking. The door-closing cylinder 5 is mounted on the hatch door 101 opening and closing bracket to push the hatch door 101 to close after the hatch door 101 is opened, and a piston rod of the door-closing cylinder 5 is extended to close the hatch door 101 from the back side of the hatch door 101 after the hatch door 101 is opened and is retracted after the hatch door 101 is closed.
The unlocking oil cylinder 21, the door opening oil cylinder 4 and the door closing oil cylinder 5 are all supplied with oil through a hydraulic station 7 arranged on the test stand 1.
Further, the invention also comprises an overall triangular operating arm 6, the operating arm 6 is provided with a first end 61, a second end 62 and a third end 63 which are arranged in a triangular shape, the first end 61 of the operating arm 6 is hinged on the cabin door 101 switch bracket through a first hinge shaft, the second end 62 of the operating arm 6 is hinged on a piston rod of the door opening cylinder 4 through a second hinge shaft, the end of the door opening cylinder 4 far away from the second end 62 of the operating arm 6 is hinged on the cabin door 101 switch bracket, and the third end 63 of the operating arm 6 is used for pushing the cabin door 101 open. The first hinge shaft serves as a rotation center of the second and third ends 62 and 63 such that both the second and third ends 62 and 63 are rotatable about a center line of the second hinge shaft.
Further, the third end 63 of the operating arm 6 is provided with a fork, and a rubber wheel is connected to the fork so as to smoothly push the hatch 101 open.
Further, the piston rod of the door opening cylinder 4 retracts the door 101 after crossing the working dead point of the gas spring assembly, and then the door 101 is opened by itself under the action of the gas spring assembly, so that the stroke of the piston rod of the door opening cylinder 4 is required to be longer, and the door opening cylinder is ensured to cross the working dead point.
Further, a wheel fork is installed on a piston rod of the door closing oil cylinder 5, and a rubber wheel is installed on the wheel fork, so that the cabin door 101 can be smoothly closed.
Further, the opening of the U-shaped block 23 is upward, the cabin door 101 is installed on the cabin body of the thermal insulation cabin 100 through a horizontal rotating shaft, so that the door is opened from bottom to top, and the lock is installed at the lower end of the cabin door 101. The hatch 101 moves upward with the hatch lock key 24 in its entirety to leave the U-shaped block 23 when opened, and the hatch 101 moves downward with the hatch lock key 24 in its entirety to allow the key handle 242 to re-enter the opening of the U-shaped block 23 when closed.
According to another aspect of the present invention, there is also provided a method for opening and closing a thermal insulation cabin door 101 by an opening and closing device for a thermal insulation cabin door, comprising the steps of:
1) before the test, all the interfaces are coordinated and adjusted in place, the cabin door 101 is locked and the piston rods of the unlocking oil cylinder 21, the door opening oil cylinder 4 and the door closing oil cylinder 5 are all in a retracting state;
2) pushing an operating rod of the unlocking oil cylinder 21 to reverse to the opening direction according to the identification requirement, starting the unlocking oil cylinder 21, extending a piston rod of the unlocking oil cylinder 21 to drive a U-shaped block 23 to move, pushing a cabin door lock key 24 to rotate to open a lock by the U-shaped block 23, positioning the piston rod of the unlocking oil cylinder 21, and keeping an extending rod of the unlocking oil cylinder 21 in an extending state;
3) pushing an operating rod of the door opening oil cylinder 4 to fall to an opening direction according to the requirement of the identification, extending a piston rod of the door opening oil cylinder 4 to push the cabin door 101, automatically opening the cabin door 101 under the action of a gas spring assembly after the cabin door 101 passes through a working dead point of the gas spring assembly connected to the back of the cabin door 101, pushing the operating rod of the door opening oil cylinder 4 to fall to a closing direction, and retracting the piston rod of the door opening oil cylinder 4;
4) after the cabin door 101 is opened in place by itself, pushing the operating rod of the door closing oil cylinder 5 to reverse to the closing direction according to the requirement of the identification, starting the door closing oil cylinder 5, pushing the cabin door 101 to rotate by the door closing oil cylinder 5 until the cabin door 101 is closed, wherein the key handle 242 of the cabin door lock key 24 enters the opening of the U-shaped block 23 in the process, and then the piston rod of the door closing oil cylinder 5 retracts; finally, the door closing oil cylinder 5 is in a contraction state;
5) after confirming that the key handle is carried out in the slider groove, the operating rod of the unlocking oil cylinder 21 is pushed to reverse the closing direction according to the identification requirement, the unlocking oil cylinder 21 is started, the piston rod of the unlocking oil cylinder 21 retracts, the cabin door lock key 24 is pulled to rotate in the retracting process, the locking of the lock of the cabin door 101 is completed, the cabin door 101 is locked, and the test process is completed.
In order to ensure that the performance and the function of the heat preservation cabin 100 door 101 meet expected requirements, the reliability of the heat preservation cabin 100 door 101 is especially researched to find out the reliability index of the heat preservation cabin 100 door 101. The invention performs an opening and closing test on the cabin door 101 and researches the fault reasons influencing the cabin door 101, designs a set of thermal insulation cabin door opening and closing devices, performs reliability tests on opening and closing of the cabin door 101 and locking of the cabin door 101, realizes periodical opening and closing of the cabin door 101 of the thermal insulation cabin 100 by providing power through a hydraulic system, and inspects the reliability of opening and closing of the cabin door 101 through the times of opening and closing the cabin door 101.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a heat preservation cabin hatch door switching device is provided with gas spring assembly between the back of hatch door and the inner wall of the cabin body, its characterized in that, this heat preservation cabin hatch door switching device includes test bench, unlocking device, hatch door switch support, the hydro-cylinder that opens the door and closes the hydro-cylinder, wherein:
the unlocking device comprises an unlocking oil cylinder, an unlocking slide seat, a U-shaped block and a cabin door locking key, wherein the unlocking oil cylinder and the unlocking slide seat are both installed on the test bed, the U-shaped block is installed on the unlocking slide seat in a sliding manner, a piston rod of the unlocking oil cylinder is connected with the U-shaped block so as to drive the U-shaped block to slide on the unlocking slide seat, the cabin door locking key comprises a rib plate, a key handle and a key head used for extending into a lock of the cabin door, the key handle and the key head are respectively connected to two ends of the rib plate, so that the cabin door locking key is integrally Z-shaped, the key handle extends into an opening of the U-shaped block so as to drive the key head to rotate to open and close the lock when the U-shaped block slides;
the cabin door switch bracket is arranged on the test bed;
the door opening oil cylinder is arranged on the cabin door switch bracket to push the cabin door open after unlocking;
the door closing oil cylinder is arranged on the cabin door switch bracket to push the cabin door to be closed after the cabin door is opened.
2. The thermal insulating cabin door opening and closing device according to claim 1, further comprising an operating arm having a generally triangular shape and having a first end, a second end and a third end, the first end of the operating arm being hinged to the door opening and closing bracket through a first hinge shaft, the second end of the operating arm being hinged to a piston rod of a door opening cylinder through a second hinge shaft, an end of the door opening cylinder remote from the second end of the operating arm being hinged to the door opening and closing bracket, and the third end of the operating arm being adapted to push open the door.
3. The insulated cabin door opening and closing device according to claim 2, wherein a wheel fork is installed at the third end of the operating arm, and a rubber wheel is connected to the wheel fork.
4. The thermal compartment door opening and closing apparatus according to claim 1, wherein the piston rod of the door opening cylinder is extended after unlocking to open the door from the front side of the door and retracted after opening the door, and the piston rod of the door closing cylinder is extended after opening the door to close the door from the rear side of the door and retracted after closing the door.
5. The insulated cabin door opening and closing device according to claim 1, wherein a protective sleeve is sleeved on the key handle.
6. The thermal insulation cabin door opening and closing device as claimed in claim 1, wherein the test bed comprises a platform, a base I and a base II, wherein the base I and the base II are mounted on the platform and are matched with each other to receive the thermal insulation cabin.
7. The apparatus as claimed in claim 1, wherein the piston rod of the door-opening cylinder retracts the door beyond the dead center of the gas spring assembly, and then allows the door to open by itself under the action of the gas spring assembly.
8. The thermal insulation cabin door opening and closing device according to claim 1, wherein a wheel fork is mounted on a piston rod of the door closing cylinder, and a rubber wheel is mounted on the wheel fork.
9. The thermal insulation cabin door opening and closing device according to claim 1, wherein the opening of the U-shaped block faces upwards, the cabin door is installed on the cabin body of the thermal insulation cabin through a horizontal rotating shaft so as to realize the opening from bottom to top, and the lock is installed at the lower end of the cabin door.
10. The method for opening and closing the door of the thermal insulation cabin of any one of claims 1 to 9, comprising the steps of:
1) initially, piston rods of the unlocking oil cylinder, the door opening oil cylinder and the door closing oil cylinder are all in a retraction state;
2) a piston rod of the unlocking oil cylinder extends out to drive the U-shaped block to move, the U-shaped block pushes the cabin door lock key to rotate to unlock the lockset, and an extension rod of the unlocking oil cylinder keeps the extending state unchanged;
3) a piston rod of the door opening oil cylinder extends out to push the cabin door, the cabin door automatically opens under the action of the gas spring assembly after passing through a working dead point of the gas spring assembly connected with the back of the cabin door, and then the piston rod of the door opening oil cylinder retracts;
4) after the cabin door is automatically opened in place, the door closing oil cylinder pushes the cabin door to rotate until the cabin door is closed, a key handle of a cabin door lock key enters an opening of the U-shaped block in the process, and then a piston rod of the door closing oil cylinder retracts;
5) and a piston rod of the unlocking oil cylinder retracts, a cabin door lock key is pulled to rotate in the retracting process, the closing of a cabin door lock is completed, the cabin door is locked, and the test process is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110057839.9A CN112878846A (en) | 2021-01-15 | 2021-01-15 | Heat preservation cabin door opening and closing device and method for opening and closing cabin door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110057839.9A CN112878846A (en) | 2021-01-15 | 2021-01-15 | Heat preservation cabin door opening and closing device and method for opening and closing cabin door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112878846A true CN112878846A (en) | 2021-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110057839.9A Pending CN112878846A (en) | 2021-01-15 | 2021-01-15 | Heat preservation cabin door opening and closing device and method for opening and closing cabin door |
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| Country | Link |
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| CN (1) | CN112878846A (en) |
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2021
- 2021-01-15 CN CN202110057839.9A patent/CN112878846A/en active Pending
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| CN1576507A (en) * | 2003-07-21 | 2005-02-09 | 阿图罗萨里斯有限公司 | Lifting equipment for two- leaf folding wing or folding door |
| EP2397638A2 (en) * | 2010-06-21 | 2011-12-21 | GEZE GmbH | Actuator for opening and/or closing a moveable leaf, in particular of a door or window |
| CN205778145U (en) * | 2016-07-12 | 2016-12-07 | 淮安市金恒泰科技有限公司 | Boot alarm opened in a kind of remote control voice |
| CN206859952U (en) * | 2017-02-10 | 2018-01-09 | 全耐塑料公司 | Automotive plastic closure member and motor vehicle |
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Application publication date: 20210601 |
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