CN109187053A - A kind of car, passenger door simplation examination platform - Google Patents
A kind of car, passenger door simplation examination platform Download PDFInfo
- Publication number
- CN109187053A CN109187053A CN201811301883.4A CN201811301883A CN109187053A CN 109187053 A CN109187053 A CN 109187053A CN 201811301883 A CN201811301883 A CN 201811301883A CN 109187053 A CN109187053 A CN 109187053A
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- door
- door frame
- car
- side wall
- plc controller
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The invention discloses a kind of cars, passenger door simplation examination platform; traditional Double-plate wire-rewinding machine be can solve due to lacking steady dynamic and aseismatic mechanism protection; so that admission machine often will appear in running generates violent vibration because of the rotation of take-up roller; vibration not only results in biggish noise; and the stability of admission machine can be made to substantially reduce; the take-up roller of admission machine is turned up when in use simultaneously; it then needs to be additionally carried out adjustment for limiting the component of external disk rotation direction after height-regulating, the problem of being more troublesome.Including pedestal and station disposed thereon, it is arranged on the station fluted, the inside grooves install two motors and two take-up rollers, take-up roller one end is through the station side wall and connects external disk, and the take-up roller other end connects flying disc, transmission shaft is connected on the flying disc side wall, the transmission shaft is connected with the motor being located on the groove.
Description
Technical field
The present invention relates to a kind of verifying benches, and in particular to a kind of car, passenger door simplation examination platform.
Background technique
The Vehicular doors such as courteous, bus are required to carry out the detection test of some column before being put into use, including to biography
Car door can not be opened when the torsional forces of motivation structure, car door opening close effect, vehicle driving and when vehicle tentatively starts does not close
The detection that car door vehicle can not light a fire is completed this series of detection and is then needed using to specific detection platform.
But there are still certain defects when in use for existing car, passenger door simplation examination platform, due to installing
Verifying bench heavier-weight after car door, and be limited to examine place, be unable to complete car door opening in vehicle travel process, close
Detection, and detection platform due to and non-vehicle itself, it is not comprehensive so as to cause detection function, be unable to complete vehicle and tentatively start
The analog detection that Shi Buguan car door can not light a fire.
Summary of the invention
The purpose of the present invention is to provide a kind of car, passenger door simplation examination platform, can solve traditional car,
Passenger door simplation examination platform when in use, due to the verifying bench heavier-weight after installing car door, and is limited to proving ground
Ground, is unable to complete the detection of car door opening in vehicle travel process, closing, and detection platform due to and non-vehicle itself, from
And cause detection function not comprehensive, it is unable to complete the problem of being not related to the analog detection that car door can not light a fire when vehicle tentatively starts.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of car, passenger door simplation examination platform, including door frame and two car doors being mounted on inside door frame, institute
It states door frame bottom and is provided with pedestal, described pedestal one end connects side frame, is equipped with second source on the side frame side wall, and described the
Second PLC controller is installed, there are two external air pump, two external gas for setting on the side frame side wall at the top of two power supplys
A pneumatic draw bar is respectively connected on pump side wall, two described pneumatic draw bar one end are both connected on the door frame side wall,
Sliding slot is provided on the pedestal；
The door frame bottom is equipped with several pulleys, and the pulley is embedded in inside the sliding slot, on the door frame side wall
First PLC controller is installed, and installation is installed between two driving air pumps there are two air pump is driven at the top of the door frame
There is the first power supply, igniter analog power is installed on the first power supply side wall, is pacified on the igniter analog power side wall
Equipped with indicator light, infrared sensor is installed, and igniter analog power side is pacified below the igniter analog power
Equipped with the displacement sensor being located on the door frame side wall, it is mounted on main bull stick on the inner wall of the door frame two sides, described in two
It is mounted on motor at the top of main bull stick, and is connected between the main bull stick top and the transmission shaft of the motor, described in two
It is respectively connected with a linkage section on main bull stick, two described linkage section one end are respectively connected with second connector, and two described
Two connector bottoms are fixedly connected between a car door of corresponding position by nut, on two motor side walls
It is provided with the adapter tube being connected with the driving air pump, two described adapter tube one end are respectively connected with a Pneumatic extension bar,
Two Pneumatic extension bar one end are connected separately with first connector, and two first connector bottoms are and corresponding position
A car door between be fixedly connected by nut.
Preferably, be separately installed with cathode contact, cathode contact on the adjacent side wall of two first connectors, it is described just
Pole contact is connected with indicator light, igniter analog power respectively by two conducting wires, and the cathode contact passes through a conducting wire
It is connected with indicator light.
Preferably, first power supply is driven with the first PLC controller, two motors, two respectively by several conducting wires
Take offence pump, displacement sensor, electrically connect between infrared sensor, the second source is by several conducting wires respectively with the
It is electrically connected between two PLC controllers, two external air pumps.
Preferably, first PLC controller and two motors, two driving air pumps, displacement sensor, infrared sensors
Between be in wired connection, be in wired connection between the external air pumps of second PLC controller and two.
Preferably, the door frame by two it is pneumatic be movably connected between draw bar and pedestal, and the activity side of door frame
To identical as sliding slot direction.
Preferably, it is movably connected by corresponding main bull stick, Pneumatic extension bar between two car doors.
Preferably, the infrared sensor faces the gap position between two car doors.
Beneficial effects of the present invention: since two pneumatic draw bars are connected with an external air pump respectively, and external gas
Wired connection between pump and the second PLC controller, so that door frame is fixed position when in use and no longer, but can be by the
Two PLC controllers start two external air pumps, drive the flexible whole to drive of two pneumatic draw bars using two external air pumps
A door frame so as to simulate the mobile effect of vehicle, and can simulate vehicle and add along sliding slot direction shift position
Effect when speed, brake, so that the teaching when carrying out the test of car door analog detection is more comprehensive.
Due to being equipped with displacement sensor in door frame top exterior walls, when displacement sensor detects car door in company with door frame
Two driving air pumps are controlled by PLC controller when moving together and two motors are turned off, to guarantee that car door can not be beaten
It opens, the effect that car door will not be opened when simulating vehicle driving, so that whether car door can open progress when realizing to vehicle driving
Detection.
Due at the top of door frame towards being equipped with infrared sensor, and infrared sensor and first on the inner wall of car door
It is connected between PLC controller, when infrared sensor detects car door someone or blocking between two car doors when closed, at this time
First PLC controller controls two driving air pumps and two electric motor startings by car door opening, to simulate closing of the door
When clip to the detection test of people or barrier.
Due to installing cathode contact, cathode contact, cathode contact and cathode respectively on two the first connector adjacent walls
Contact passes through a conducting wire respectively and is connected with the anode of indicator light, cathode, and cathode contact further through another conducting wire with
Igniter analog power in door frame top sidewall is connected, so that car door is when closed, cathode contact and cathode contact
It is in contact, so that igniter analog power can light indicator light, when car door opening, cathode contact is separated with cathode contact,
Indicator light does not work, and when starting at the beginning of simulating vehicle, car door does not close the effect that can not be lighted a fire, so that realizing can not point when car door does not close
The analog detection of fire, so that the function of verifying bench is more comprehensive.
Detailed description of the invention
In order to facilitate the understanding of those skilled in the art, the present invention will be further described below with reference to the drawings.
Fig. 1 is overall structure of the present invention；
Fig. 2 is portal-framed structure schematic diagram of the present invention；
Fig. 3 is side cage structure schematic diagram of the present invention；
Fig. 4 is the a-quadrant details enlarged drawing in Fig. 2 of the present invention；
In figure: 1, door frame；2, side frame；3, the first PLC controller；4, pulley；5, main bull stick；6, car door；7, indicator light；8,
First power supply；9, igniter analog power；10, air pump is driven；11, second source；12, the second PLC controller；13, external gas
Pump；14, pneumatic draw bar；15, pedestal；16, sliding slot；17, displacement sensor；18, cathode contact；19, cathode contact；20, red
Outer sensor；21, motor；22, it takes over；23, Pneumatic extension bar；24, the first connector；25, linkage section；26, the second connector.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with embodiment, it is clear that described reality
Applying example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is general
Logical technical staff all other embodiment obtained without creative efforts belongs to what the present invention protected
Range.
It please refers to shown in Fig. 1-4, a kind of car, passenger door simplation examination platform, including door frame 1 and is mounted on door frame
Two car doors 6 inside 1,1 bottom of door frame are provided with pedestal 15, and 15 one end of pedestal connects side frame 2, is equipped on 2 side wall of side frame
Second source 11 is equipped with the second PLC controller 12 at the top of second source 11, and there are two external air pumps for setting on 2 side wall of side frame
13, a pneumatic draw bar 14 is respectively connected on two external 13 side walls of air pump, and two 14 one end of pneumatic draw bar are both connected to
On 1 side wall of door frame, sliding slot 16 is provided on pedestal 15；
1 bottom of door frame is equipped with several pulleys 4, and pulley 4 is embedded in inside sliding slot 16, is equipped with first on 1 side wall of door frame
PLC controller 3, and installation is equipped with the first power supply 8 between two driving air pumps 10 there are two air pump 10 is driven at the top of door frame 1,
Igniter analog power 9 is installed on first power supply, 8 side wall, indicator light 7 is installed on 9 side wall of igniter analog power, is lighted a fire
Infrared sensor 20 is installed, and 9 side of igniter analog power is equipped on 1 side wall of door frame below device analog power 9
Displacement sensor 17, be mounted on main bull stick 5 on 1 two sides inner wall of door frame, be mounted on motor 21 at the top of two main bull sticks 5,
And be connected between main 5 top of bull stick and the transmission shaft of motor 21, it is respectively connected with a linkage section 25 on two main bull sticks 5, two
A 25 one end of linkage section is respectively connected with second connector 26, two 26 bottoms of the second connector with a car door of corresponding position
It is fixedly connected between 6 by nut, the adapter tube 22 being connected with driving air pump 10 is provided on two 21 side walls of motor,
Two 22 one end of adapter tube are respectively connected with a Pneumatic extension bar 23, and two 23 one end of Pneumatic extension bar are connected separately with one first
Connector 24, two 24 bottoms of the first connector are fixedly connected between a car door 6 of corresponding position by nut.
Cathode contact 18, cathode contact 19, cathode contact 18 are separately installed on the adjacent side wall of two the first connectors 24
It is connected respectively with indicator light 7, igniter analog power 9 by two conducting wires, cathode contact 19 passes through a conducting wire and instruction
Lamp 7 is connected, so that car door 6 is when closed, cathode contact 18 is in contact with cathode contact 19, thus igniter analog power 9
Indicator light 7 can be lighted, when car door 6 is opened, cathode contact 18 is separated with cathode contact 19, and indicator light 7 does not work, and simulates vehicle
When starting at the beginning of, car door 6 does not close the effect that can not be lighted a fire, thus realize the analog detection that can not be lighted a fire when car door 6 does not close, so that
The function of verifying bench is more comprehensive.
First power supply 8 by several conducting wires respectively with 21, two, the motor driving air pump of the first PLC controller 3, two
10, it is electrically connected between displacement sensor 17, infrared sensor 20, second source 11 is by several conducting wires respectively with second
It is electrically connected between PLC controller 12, two external air pumps 13, so that there is enough various components at runtime inside device
Power source.
21, two driving air pumps 10 of first PLC controller 3 and two motors, displacement sensor 17, infrared sensor 20 it
Between be in wired connection, be in wired connection between the external air pumps 13 of the second PLC controller 12 and two, so that two motors 21, two
A starting, closing for driving air pump 10, displacement sensor 17, infrared sensor 20 and two external air pumps 13 can pass through
PLC controller is controlled, so that detection test is more convenient.
Door frame 1 by two it is pneumatic be movably connected between draw bar 14 and pedestal 15, and the activity direction and cunning of door frame 1
16 direction of slot is identical, using two external air pumps 13 drive two pneumatic draw bars 14 it is flexible come drive entire door frame 1 along
16 direction shift position of sliding slot, so as to simulate the mobile effect of vehicle, and can simulate vehicle accelerate, brake when
Effect so that carry out car door analog detection test when teaching it is more comprehensive.
It is movably connected by corresponding main bull stick 5, Pneumatic extension bar 23 between two car doors 6, is carrying out car door 6
When opening and closing detection, two driving air pumps 10 and two motors 21, motor 21 are started by the first PLC controller 3
Transmission shaft drive main bull stick 5 to rotate, cooperation driving air pump 10 drives the flexible of Pneumatic extension bar 23 to drive two car doors 6
It opens and closes.
Infrared sensor 20 faces the gap position between two car doors 6, when infrared sensor 20 detects that car door 6 exists
Someone or blocking between two car doors 6 when closing, the first PLC controller 3 controls two driving air pumps 10 and two electricity at this time
Car door 6 is opened in the starting of machine 21, to simulate the detection test for clipping to people or barrier when car door 6 is closed.
Beneficial effects of the present invention: since two pneumatic draw bars 14 are connected with an external air pump 13 respectively, and it is outer
Wired connection between portion's air pump 13 and the second PLC controller 12, so that door frame 1 is fixed position when in use and no longer, but
Two external air pumps 13 can be started by the second PLC controller 12, drive two pneumatic tractions using two external air pumps 13
The flexible of bar 14 drives entire door frame 1 along 16 direction shift position of sliding slot, so as to simulating the mobile effect of vehicle,
And effect when vehicle accelerates, brakes can be simulated, so that the teaching when carrying out the test of car door analog detection is more complete
Face.
Due to being equipped with displacement sensor 17 in 1 top exterior walls of door frame, when displacement sensor 17 detect car door 6 with
Two driving air pumps 10 are controlled by PLC controller 3 when moving together with door frame 1 and two motors 21 are turned off, to protect
Card car door 6 can not be opened, the effect that car door 6 will not be opened when simulating vehicle driving, to realize car door 6 when to vehicle driving
Whether can open and be detected.
Due to being equipped with infrared sensor 20 on inner wall of the top of door frame 1 towards car door 6, and infrared sensor 20 with
Be connected between first PLC controller 3, when infrared sensor 20 detect car door 6 when closed between two car doors 6 someone or
Stopping, the first PLC controller 3 controls two driving air pumps 10 at this time and car door 6 is opened in two startings of motor 21, thus
Simulate the detection test that people or barrier are clipped to when car door 6 is closed.
Due to installing cathode contact 18, cathode contact 19, cathode contact respectively on two 24 adjacent walls of the first connector
18 are connected by a conducting wire with the anode of indicator light 7, cathode respectively with cathode contact 19, and cathode contact 18 further through
Another conducting wire is connected with the igniter analog power 9 being located in 1 top sidewall of door frame, so that car door 6 is when closed, anode
Contact 18 is in contact with cathode contact 19, so that igniter analog power 9 can light indicator light 7, when car door 6 is opened, just
Pole contact 18 is separated with cathode contact 19, and indicator light 7 does not work, and when starting at the beginning of simulating vehicle, car door 6 does not close the effect that can not be lighted a fire
Fruit, so that the analog detection that can not be lighted a fire when car door 6 does not close is realized, so that the function of verifying bench is more comprehensive.
In the use of the present invention, completing the assembling of whole device first, two car doors 6, and vehicle are installed inside door frame 1
Door 6 top be fixedly connected by two nuts between the first connector 24, the second connector 26, door frame 1 is then mounted on bottom
On seat 15, and the pulley 4 of 1 bottom of door frame is embedded in inside the sliding slot 16 on pedestal 15, finally, will be led between side frame 2 and door frame 1
Two pneumatic draw bars 14 are crossed to be fixedly connected.Since two pneumatic draw bars 14 are connected with an external air pump 13 respectively, and
Wired connection between external air pump 13 and the second PLC controller 12, so that door frame 1 is fixed position when in use and no longer, and
It is that can start two external air pumps 13 by the second PLC controller 12, drives two using two external air pumps 13 and pneumatically lead
Drawing the flexible of bar 14 drives entire door frame 1 along 16 direction shift position of sliding slot, so as to simulating the mobile effect of vehicle
Fruit, and effect when vehicle accelerates, brakes can be simulated, so that the teaching when carrying out the test of car door analog detection is more
Comprehensively.Carry out car door 6 opening and close detection when, by the first PLC controller 3 start two driving air pumps 10 and
The transmission shaft of two motors 21, motor 21 drives main bull stick 5 to rotate, and cooperation driving air pump 10 drives the flexible of Pneumatic extension bar 23
Drive the open and close of two car doors 6, due to be equipped in 1 top exterior walls of door frame displacement sensor 17 (model are as follows:
SDM7400, German SENDX), when displacement sensor 17 detects that car door 6 is controlled when moving together in company with door frame 1 by PLC
Device 3 controls two driving air pumps 10 and two motors 21 are turned off, to guarantee that car door 6 can not be opened, simulates vehicle row
The effect that car door 6 will not be opened when sailing, so that whether car door 6 can be opened and detect when realizing to vehicle driving.Due in door
The top of frame 1 towards being equipped with infrared sensor 20 (model are as follows: SE2460) on the inner wall of car door 6, and infrared sensor 20 with
It is connected between first PLC controller 3 (model of the first PLC controller and the second PLC controller is equal are as follows: CPM1A), when infrared
Sensor 20 detects someone or the blocking between two car doors 6 when closed of car door 6, and the first PLC controller 3 controls two at this time
Car door 6 is opened in driving air pump 10 and two startings of motor 21, clips to people or barrier to simulate when car door 6 is closed
Detection test.Due to installing cathode contact 18, cathode contact 19, anode touching respectively on two 24 adjacent walls of the first connector
Point 18 is connected by a conducting wire with the anode of indicator light 7, cathode respectively with cathode contact 19, and cathode contact 18 is again logical
It crosses another conducting wire and is connected with the igniter analog power 9 being located in 1 top sidewall of door frame, so that car door 6 is when closed, just
Pole contact 18 is in contact with cathode contact 19, so that igniter analog power 9 can light indicator light 7, when car door 6 is opened,
Cathode contact 18 is separated with cathode contact 19, and indicator light 7 does not work, simulate vehicle just when starting, and car door 6 is not closed and can not be lighted a fire
Effect, so that the analog detection that can not be lighted a fire when car door 6 does not close is realized, so that the function of verifying bench is more comprehensive.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (7)
1. a kind of car, passenger door simplation examination platform including door frame (1) and are mounted on two internal vehicles of door frame (1)
Door (6), door frame (1) bottom are provided with pedestal (15), and described pedestal (15) one end connects side frame (2), which is characterized in that institute
It states and is equipped with second source (11) on side frame (2) side wall, the second PLC controller is installed at the top of the second source (11)
(12), it on side frame (2) side wall there are two settings external air pump (13), is all connected on two described external air pump (13) side walls
There is a pneumatic draw bar (14), two described pneumatic draw bar (14) one end are both connected on the door frame (1) side wall, described
Sliding slot (16) are provided on pedestal (15)；
Door frame (1) bottom is equipped with several pulleys (4), and the pulley (4) is embedded in sliding slot (16) inside, the door
It is equipped with the first PLC controller (3) on frame (1) side wall, and drives air pump (10) there are two installations at the top of the door frame (1), two
It is equipped with the first power supply (8) between a driving air pump (10), igniter simulation is installed on the first power supply (8) side wall
Power supply (9) is equipped with indicator light (7) on igniter analog power (9) side wall, below the igniter analog power (9)
It is equipped with infrared sensor (20), and the igniter analog power (9) side is equipped on the door frame (1) side wall
Displacement sensor (17) is mounted on main bull stick (5) on the inner wall of door frame (1) two sides, at the top of two main bull sticks (5)
It is equipped with motor (21), and is connected between main bull stick (5) top and the transmission shaft of the motor (21), two masters
A linkage section (25) is respectively connected on bull stick (5), two described linkage section (25) one end are respectively connected with second connector
(26), two the second connector (26) bottoms connect between a car door (6) of corresponding position by the way that nut is fixed
It connects, is provided with one and the adapter tube (22) that is connected of driving air pump (10) on two motor (21) side walls, two
Described adapter tube (22) one end is respectively connected with a Pneumatic extension bar (23), and two described Pneumatic extension bar (23) one end are separately connected
There is first connector (24), two the first connector (24) bottoms are between a car door (6) of corresponding position
It is fixedly connected by nut.
2. a kind of car according to claim 1, passenger door simplation examination platform, which is characterized in that two described
Cathode contact (18), cathode contact (19) are separately installed on the adjacent side wall of one connector (24), the cathode contact (18) is logical
It crosses two conducting wires to be connected with indicator light (7), igniter analog power (9) respectively, the cathode contact (19) is led by one
Line is connected with indicator light (7).
3. a kind of car according to claim 1, passenger door simplation examination platform, which is characterized in that first electricity
Source (8) by several conducting wires respectively with the first PLC controller (3), two motors (21), two driving air pumps (10), displacement
Sensor (17), infrared sensor electrically connect between (20), the second source (11) by several conducting wires respectively with
It is electrically connected between second PLC controller (12), two external air pumps (13).
4. a kind of car according to claim 1, passenger door simplation examination platform, which is characterized in that the first PLC
Controller (3) and two motors (21), two driving air pumps (10), displacement sensor (17), infrared sensor are between (20)
Wired connection is in wired connection between second PLC controller (12) and two external air pumps (13).
5. a kind of car according to claim 1, passenger door simplation examination platform, which is characterized in that the door frame (1)
By being movably connected between two pneumatic draw bars (14) and pedestal (15), and the activity direction of door frame (1) and sliding slot (16)
Direction is identical.
6. a kind of car according to claim 1, passenger door simplation examination platform, which is characterized in that two vehicles
It is movably connected by corresponding main bull stick (5), Pneumatic extension bar (23) between door (6).
7. a kind of car according to claim 1, passenger door simplation examination platform, which is characterized in that the infrared biography
Sensor (20) faces the gap position between two car doors (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811301883.4A CN109187053B (en) | 2018-11-02 | 2018-11-02 | Passenger train passenger door simulation test platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811301883.4A CN109187053B (en) | 2018-11-02 | 2018-11-02 | Passenger train passenger door simulation test platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109187053A true CN109187053A (en) | 2019-01-11 |
| CN109187053B CN109187053B (en) | 2023-09-26 |
Family
ID=64941688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811301883.4A Active CN109187053B (en) | 2018-11-02 | 2018-11-02 | Passenger train passenger door simulation test platform |
Country Status (1)
| Country | Link |
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| CN (1) | CN109187053B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092094A (en) * | 2021-04-13 | 2021-07-09 | 安徽安凯金达机械制造有限公司 | Bus inner swing door fatigue test bench |
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|---|---|---|---|---|
| FR1097621A (en) * | 1953-09-29 | 1955-07-07 | Haegglund & Soener Ab | Device for automatically opening and closing doors |
| US5902941A (en) * | 1995-08-09 | 1999-05-11 | Atoma International, Inc. | Closure system testing apparatus |
| US5936167A (en) * | 1998-03-10 | 1999-08-10 | Chrysler Corporation | Door assembly testings simulator |
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| CN113092094A (en) * | 2021-04-13 | 2021-07-09 | 安徽安凯金达机械制造有限公司 | Bus inner swing door fatigue test bench |
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| Publication number | Publication date |
|---|---|
| CN109187053B (en) | 2023-09-26 |
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