CN113700417A - Vehicle driving gate of low-pressure environmental test cabin - Google Patents

Vehicle driving gate of low-pressure environmental test cabin Download PDF

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Publication number
CN113700417A
CN113700417A CN202110968984.2A CN202110968984A CN113700417A CN 113700417 A CN113700417 A CN 113700417A CN 202110968984 A CN202110968984 A CN 202110968984A CN 113700417 A CN113700417 A CN 113700417A
Authority
CN
China
Prior art keywords
cover plate
door body
door
low
rotating shaft
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
Application number
CN202110968984.2A
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Chinese (zh)
Inventor
缑宇翔
张保军
马东利
李爽
高琳
刘惠丽
刘立盟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China North Vehicle Research Institute
Original Assignee
China North Vehicle Research Institute
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China North Vehicle Research Institute filed Critical China North Vehicle Research Institute
Priority to CN202110968984.2A priority Critical patent/CN113700417A/en
Publication of CN113700417A publication Critical patent/CN113700417A/en
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/32—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
    • E06B3/34—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement
    • E06B3/42—Sliding wings; Details of frames with respect to guiding
    • E06B3/46—Horizontally-sliding wings
    • E06B3/4636—Horizontally-sliding wings for doors
    • 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
    • E05F11/00—Man-operated mechanisms for operating wings, including those which also operate the fastening
    • E05F11/54—Man-operated mechanisms for operating wings, including those which also operate the fastening for doors
    • 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
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/632—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/12—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes against air pressure, explosion, or gas
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
    • E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
    • E06B7/23—Plastic, sponge rubber, or like strips or tubes
    • E06B7/2318—Plastic, sponge rubber, or like strips or tubes by applying over- or under-pressure, e.g. inflatable
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/28—Other arrangements on doors or windows, e.g. door-plates, windows adapted to carry plants, hooks for window cleaners
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/60—Application of doors, windows, wings or fittings thereof for other use
    • E05Y2900/602—Application of doors, windows, wings or fittings thereof for other use for containers

Abstract

The invention relates to a vehicle running gate of a low-pressure environment test chamber, which is used for solving the problems of pressure bearing and sealing of the vehicle running gate of the low-pressure environment test chamber. The door frame comprises a door frame, a door body, a follow-up cover plate, a speed reduction motor, walking wheels, a manual winch, reinforcing ribs, an upper guide rail, a lower guide rail, guide wheels, rubber covered wheels, a cover plate support, a rotating shaft, a guide rod, a cover plate support beam and a rotating shaft seat; the door frame is provided with an upper guide rail and a lower guide rail, and the door body is connected to the upper guide rail and the lower guide rail through guide wheels and travelling wheels respectively; the guide rod is arranged at the lower edge of the outer side of the door body, the servo cover plate is provided with a rubber covered wheel and a cover plate support, and the servo cover plate is welded on a concrete foundation through a rotating shaft and a rotating shaft seat; when the driving door is closed, the follow-up cover plate is lifted upwards along the guide rod by using the rubber-coated wheel and is erected outside the door body; when the driving gate is opened, the follow-up cover plate is flatly connected with the ground and supported on the cover plate supporting beam through the cover plate, so that the requirements of vehicles for entering and exiting are met.

Description

Vehicle driving gate of low-pressure environmental test cabin
Technical Field
The invention belongs to the field of environmental simulation tests, and particularly relates to a driving door of a low-pressure environmental test chamber.
Background
When the vehicle runs in a plateau area, the air is thin due to low air pressure, so that the dynamic performance of the vehicle is greatly influenced, the power of an engine is reduced due to the reduction of the air density, and meanwhile, the performance of an auxiliary system of the vehicle is obviously influenced. At present, vehicle plateau adaptability tests are mainly field tests, but field tests are limited by plateau environmental conditions more and can be implemented only in a limited time window, so that the test period and the development period are longer, and the vehicle plateau adaptability tests are difficult to transport and guarantee in plateau, high in test cost, uncontrollable in environmental factors, inconsistent in test conditions, inconvenient in test point arrangement, low in test data accuracy, inconvenient in fault maintenance and correction and the like.
The low-pressure environmental test chamber can realize that the vehicle carries out a low-pressure performance test in a test room so as to improve the adaptability of the vehicle to the plateau environment. The main body of the low-pressure environmental test cabin is a steel pressure-bearing closed container, the driving door needs to meet the passing requirements of large-scale crawler belts and wheeled vehicles, the test cabin body is guaranteed to be complete and uniform in structure, closed and reliable, and high safety and convenience are achieved.
The design difficulty of the vehicle running gate is reflected in that:
(1) the low-pressure environmental test cabin driving door needs to bear certain atmospheric pressure and has good sealing performance, convenience and safety.
(2) The main body of the low-pressure environmental test chamber is a steel structure closed container, the bottom of the chamber body is positioned in a pit due to the structural and functional particularity, the pit is provided with a concrete foundation, the chamber body is fixed on the concrete foundation through a support, and in addition, the periphery of the chamber body is kept separated from the horizontal ground at a certain interval. Therefore, when the driving gate is opened, in order to facilitate the passing of vehicles, a steel plate needs to be laid at the interval between the gate and the horizontal ground, and the gap between the bearing floor of the test room and the horizontal ground is filled.
Disclosure of Invention
In order to solve the problems of pressure bearing and sealing of the low-pressure environment test cabin vehicle driving gate, the invention designs the low-pressure environment test cabin vehicle driving gate, which has the following specific technical scheme:
the driving gate comprises a door frame, a door body, a follow-up cover plate, a speed reduction motor, a traveling wheel, a manual winch, a reinforcing rib, an upper guide rail, a lower guide rail, a guide wheel, a rubber covered wheel, a cover plate support, a rotating shaft, a guide rod, a cover plate support beam and a rotating shaft seat; an upper guide rail and a lower guide rail are arranged in the door frame, the top end of the door body is clamped in the upper guide rail through a guide wheel, the bottom end of the door body moves on the lower guide rail through a traveling wheel, and a speed reduction motor is used for driving the door body to open and close; the guide rod is fixedly arranged at the position, close to the lower edge, of the outer side of the door body and is used for sequentially lifting the plurality of follow-up cover plates when the door body is closed; the lower surface of each follow-up cover plate is provided with a rubber covered wheel and a cover plate support, all follow-up cover plates are connected into a row by a rotating shaft, and the rotating shaft end of the rotating shaft is welded on a concrete foundation through a plurality of rotating shaft seats; when the driving door is closed, the follow-up cover plate is lifted upwards around the rotating shaft along the guide rod by using the rubber-coated wheel and stands outside the door body; when the driving gate is opened, the follow-up cover plate falls down around the rotating shaft to be level with the ground, the follow-up cover plate is supported on a cover plate supporting beam fixed on a steel structure support through a cover plate support, the vehicle entering and exiting requirements are met, and the steel structure support is welded on the bottom cabin body.
Furthermore, the door frame is provided with an inner frame to form an I-shaped double-layer structure for enhancing the stability of the door frame, and when the driving door is closed, the part where the door body is located does not have the inner frame.
Furthermore, inflatable rubber sealing strips are arranged on the periphery of the inner side of the door body, and when the door is closed, the rubber strips are inflated to ensure the sealing property.
Furthermore, a manual winch is arranged and used for manually opening and closing the driving door in a power-off state.
Furthermore, reinforcing ribs are welded on the inner side of the door body and used for controlling the weight of the gate on the premise of ensuring the pressure-bearing safety of the gate; the reinforcing ribs are of a net structure welded by hot rolled I-steel.
Furthermore, the gear motor is installed on the inner side of the door body by adopting a sliding base.
Furthermore, a limiting device is arranged on the door frame and used for controlling the safe operation of the door body.
Furthermore, a heat-insulating layer is formed after polyurethane pigment is sprayed and foamed in the section steel frame of the door body.
Furthermore, an observation window is arranged on the door body.
The invention has the beneficial effects that: the low-pressure environmental test cabin driving gate provided by the invention can bear atmospheric pressure and has sealing performance through the special design of the gate door frame, the reinforcing device and the sealing facility.
Drawings
Fig. 1 is a schematic structural diagram of the outer side of a driving gate of a low-pressure environmental test cabin.
Fig. 2 is a schematic structural diagram of the inner side of a driving gate of a low-pressure environmental test cabin.
FIG. 3 is a left side view of a driving gate of a vehicle in a low-pressure environment test cabin
Fig. 4 is a schematic view of a guide rail on a running gate of a low-pressure environmental test cabin.
Fig. 5 is a schematic view of a lower guide rail of a running gate of a low-pressure environmental test cabin.
Fig. 6 is a schematic view of the structure and installation of the follow-up cover plate of the driving gate of the low-pressure environmental test cabin.
Fig. 7 is a schematic view of a guide rod of a follow-up cover plate of a driving gate of a low-pressure environmental test chamber.
In the figure, 1 a door frame, 2 a door body, 3 a follow-up cover plate, 4 a speed reducing motor, 5 traveling wheels, 6 a manual winch, 7 reinforcing ribs, 8 upper guide rails, 9 lower guide rails, 10 guide wheels, 11 rubber covered wheels, 12 cover plate supports, 13 rotating shafts, 14 guide rods, 15 cover plate support beams, 16 rotating shaft seats and 17 inner frames.
Detailed Description
The invention is further described below with reference to the figures and examples:
the running gate consists of a door body, a sealing mechanism and a transmission mechanism.
The door body adopts a rib plate structure, namely, a reinforcing rib is welded on a flat plate to ensure the strength and rigidity of the door body so as to reduce the weight, and the reinforcing rib adopts hot rolled I-shaped steel to be welded into a net structure so as to ensure the pressure-bearing capacity of the door.
The vehicle driving door adopts an inflation sealing mode, sealing strips are arranged on the periphery of the door body, and the sealing strips are made of silicon rubber with good temperature resistance and ageing resistance.
The transmission mechanism adopts gear rack transmission and consists of an upper guide rail, a lower guide rail, a speed reduction motor, a traveling wheel, a guide wheel and a transmission rack. The walking wheels run on the lower guide rail and are provided with limit positions, so that the running safety of the gate is ensured. The gear motor is installed by adopting a sliding base, and the gear motor can be separated from the transmission rack in a power-off state so as to enter a manual mode.
The manual gate opening device adopts a manual winch, a self-locking type steel wire rope winch is adopted, the winch is provided with a friction braking device, bidirectional braking is automatically opened under the load condition, and the rotating device is a ratchet wrench.
When the driving door is opened, the trench at the bottom of the door frame is leveled with the ground by the aid of the follow-up cover plate, so that the requirement of vehicles to enter and exit is met, the follow-up cover plate is a steel structure reinforced floor, and the bearing capacity of the follow-up cover plate meets the maximum load of the vehicles.
The composition structure and the working process of the present invention are further described with reference to fig. 1 to 7. As shown in fig. 1, the door body 2 is located at the right side in the door frame 1 and is in a door closing state, whereas the door body is located at the left side and is in an opening state. The door body 2 is larger than the test cabin hatch, when the gate is closed, the door body 2 integrally covers the cabin door of the test cabin and is in close contact with the cabin body around the cabin door, the inflatable rubber sealing strips are arranged around the inner side of the door body 2, and when the gate is closed, the rubber strips are inflated to ensure the sealing property. The door frame 1 is made of hollow steel, an inner frame 17 is further arranged to enhance stability, an I-shaped double-layer structure is formed, as shown in figure 2, when the door is closed, the inner frame 17 is not arranged on the part of the door frame 1 covered by the door body 2, the inner frame 17 is only arranged on the other part, the door frame 1 and the inner frame 17 are arranged on a surrounding concrete foundation, and the vertical side view of the door frame 1 is shown in figure 3. In order to increase the stability of the door frame, a longitudinal bar may be added to the door frame. As shown in fig. 2, the reinforcing ribs 7 are welded to the inner side of the door body 2, and the reinforcing ribs 7 are welded to form a net structure by hot rolled i-steel. The polyurethane pigment is sprayed and foamed in the profile steel frame of the door body 2 to form a heat insulation layer, and the decorative surface is a stainless steel warehouse plate, so that the heat insulation performance of the door body is improved. As shown in fig. 3, the door body 2 is mounted on the upper rail 8 and the lower rail 9 of the door frame 1 by the traveling wheels 5 and the guide wheels 10. As shown in fig. 4, the guide wheel 10 is clamped at the upper guide rail 8, and is smooth and free from clamping stagnation. As shown in fig. 5, the travelling wheels 5 run on the lower guide rails 9, and the running safety of the gate is ensured through a limiting device. The speed reducing motor 4 is installed on the inner side of the door body 2 through a sliding base and moves along with the door body 2. The gate adopts two kinds of drive modes of electronic and manual, and gear motor 4 breaks away from with the driving rack under the outage state, and accessible manual capstan 6 switching gate. As shown in fig. 6 to 7, the plurality of follow-up cover plates 3 are connected through the rotating shaft 13 to form a row, the rotating shaft end of the rotating shaft 13 is welded on the concrete foundation through the plurality of rotating shaft seats 16, and the plurality of follow-up cover plates 3 are arranged between the test chamber hatch and the ground. When the speed reduction motor 4 drives the vehicle driving gate to close through the transmission rack, the guide rod 14 arranged on the outer side of the door body 2 pushes the rubber coating wheel 11 to roll in the advancing process, and the contact part of the guide rod 14 and the rubber coating wheel 11 is an inclined rod which inclines upwards, so that upward force is provided for the rubber coating wheel 11, and the follow-up cover plate 3 is lifted upwards along the guide rod 14 under the action of the rubber coating wheel 11 and stands on the outer side of the door body 2. When the driving gate is opened, the follow-up cover plate 3 falls down and is supported on a cover plate supporting beam 15 fixed on the underground cabin body support through a cover plate support 12, and at the moment, the bearing floor of the test cabin is connected with the ground in a flat manner, so that vehicles can conveniently pass in and out.

Claims (10)

1. A vehicle driving gate of a low-pressure environmental test chamber is characterized by comprising a door frame (1), a door body (2), a follow-up cover plate (3), a speed reducing motor (4), a traveling wheel (5), a manual winch (6), a reinforcing rib (7), an upper guide rail (8), a lower guide rail (9), a guide wheel (10), a rubber coating wheel (11), a cover plate support (12), a rotating shaft (13), a guide rod (14), a cover plate support beam (15) and a rotating shaft seat (16); an upper guide rail (8) and a lower guide rail (9) are arranged in the door frame (1), the top end of the door body (2) is clamped in the upper guide rail (8) through a guide wheel (10), the bottom end of the door body (2) moves on the lower guide rail (9) through a traveling wheel (5), and a speed reduction motor (4) is used for driving the door body (2) to be opened and closed; the guide rod (14) is fixedly arranged at the lower edge of the outer side of the door body (2) and is used for sequentially lifting the plurality of follow-up cover plates (3) when the door body (2) is closed; the lower surface of each follow-up cover plate (3) is provided with a rubber covered wheel (11) and a cover plate support (12), all follow-up cover plates (3) are connected into a row by a rotating shaft (13), and the rotating shaft end of the rotating shaft (13) is welded on a concrete foundation through a plurality of rotating shaft seats (16); when the driving door is closed, the follow-up cover plate (3) is lifted upwards around the rotating shaft (13) along the guide rod (14) by using the rubber-coated wheel (11) and stands outside the door body (2); when the driving gate is opened, the follow-up cover plate (3) falls down around the rotating shaft (13) to be level with the ground, and is supported on a cover plate supporting beam (15) fixed on an underground cabin body support through a cover plate support (12), so that the requirements of vehicle access are met.
2. The vehicle driving gate of the low-pressure environmental test chamber as recited in claim 1, wherein: furthermore, the door frame (1) is provided with an inner frame (17) to form an I-shaped double-layer structure, the stability of the door frame (1) is enhanced, and when the driving door is closed, the part where the door body (2) is located does not have the inner frame (17).
3. The vehicle driving gate of the low-pressure environmental test chamber as recited in claim 1, wherein: furthermore, inflatable rubber sealing strips are arranged on the periphery of the inner side of the door body (2), and when the door is closed, the rubber strips are inflated to ensure the sealing property.
4. The vehicle driving gate of the low-pressure environmental test chamber as recited in claim 1, wherein: furthermore, a manual winch (6) is arranged and used for manually opening and closing the driving door in a power-off state.
5. The vehicle driving gate of the low-pressure environmental test chamber as recited in claim 5, wherein: the self-locking type winch with the steel wire rope is adopted, the winch is provided with a friction braking device, bidirectional braking is automatically started under the load condition, and a rotating device is a ratchet wrench.
6. The vehicle driving gate of the low-pressure environmental test chamber as recited in claim 1, wherein: furthermore, reinforcing ribs (7) are welded on the inner side of the door body (2) and used for controlling the weight of the gate on the premise of ensuring the pressure-bearing safety of the gate; the reinforcing ribs (7) are of a net structure welded by hot-rolled I-shaped steel.
7. The vehicle driving gate of the low-pressure environmental test chamber as recited in claim 1, wherein: furthermore, the speed reducing motor (4) is arranged on the inner side of the door body (2) by adopting a sliding base.
8. The vehicle driving gate of the low-pressure environmental test chamber as recited in claim 1, wherein: furthermore, a limiting device is arranged on the door frame (1) and used for controlling the safe operation of the door body (2).
9. The vehicle driving gate of the low-pressure environmental test chamber as recited in claim 1, wherein: furthermore, a heat-insulating layer is formed after polyurethane pigment is sprayed and foamed in the section steel frame of the door body (2).
10. The vehicle driving gate of the low-pressure environmental test chamber as recited in claim 1, wherein: furthermore, an observation window is arranged on the door body (2).
CN202110968984.2A 2021-08-23 2021-08-23 Vehicle driving gate of low-pressure environmental test cabin Pending CN113700417A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110968984.2A CN113700417A (en) 2021-08-23 2021-08-23 Vehicle driving gate of low-pressure environmental test cabin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110968984.2A CN113700417A (en) 2021-08-23 2021-08-23 Vehicle driving gate of low-pressure environmental test cabin

Publications (1)

Publication Number Publication Date
CN113700417A true CN113700417A (en) 2021-11-26

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ID=78654069

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110968984.2A Pending CN113700417A (en) 2021-08-23 2021-08-23 Vehicle driving gate of low-pressure environmental test cabin

Country Status (1)

Country Link
CN (1) CN113700417A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114486320A (en) * 2022-04-15 2022-05-13 中国飞机强度研究所 Emergency processing system and method for pressure imbalance for aircraft testing
CN115855428A (en) * 2023-02-09 2023-03-28 中国航空工业集团公司沈阳空气动力研究所 High-temperature wind tunnel pressure-bearing optical cabin door and control method

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2844877A1 (en) * 1978-10-14 1980-04-30 Schwarze Ag Metalltueren Sliding gate with bottom guide channel - has hinged sections of cover plates operated by edge of sliding gate leaf
US5518207A (en) * 1994-08-05 1996-05-21 Nordstrom; Arnold Aircraft door sill guard
CN202296762U (en) * 2011-10-10 2012-07-04 日立电梯(上海)有限公司 Covering device for gap between elevator car door and hoistway door
CN110185367A (en) * 2019-04-28 2019-08-30 无锡市天宇民防建筑设计研究院有限公司 A kind of push-and-pull sliding type protective airtight door
CN111042717A (en) * 2019-12-30 2020-04-21 武昌船舶重工集团有限公司 Large-scale shielding guard gate
CN211422347U (en) * 2019-12-19 2020-09-04 广东津美家居用品有限公司 Ultra-large visual field sliding door
CN211448270U (en) * 2019-06-25 2020-09-08 上海研征智控设备有限公司 Window device of electric sliding window
CN211950067U (en) * 2020-01-10 2020-11-17 江苏柏瑞鑫铝业科技有限公司 Metal floor slideway structure
CN112901042A (en) * 2021-02-22 2021-06-04 上海声望声学科技股份有限公司 Ultra-large electrically driven sound insulation door structure of wind tunnel anechoic chamber
CN213807178U (en) * 2020-10-22 2021-07-27 江苏恒新门业有限公司 Side revolving door winch system

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2844877A1 (en) * 1978-10-14 1980-04-30 Schwarze Ag Metalltueren Sliding gate with bottom guide channel - has hinged sections of cover plates operated by edge of sliding gate leaf
US5518207A (en) * 1994-08-05 1996-05-21 Nordstrom; Arnold Aircraft door sill guard
CN202296762U (en) * 2011-10-10 2012-07-04 日立电梯(上海)有限公司 Covering device for gap between elevator car door and hoistway door
CN110185367A (en) * 2019-04-28 2019-08-30 无锡市天宇民防建筑设计研究院有限公司 A kind of push-and-pull sliding type protective airtight door
CN211448270U (en) * 2019-06-25 2020-09-08 上海研征智控设备有限公司 Window device of electric sliding window
CN211422347U (en) * 2019-12-19 2020-09-04 广东津美家居用品有限公司 Ultra-large visual field sliding door
CN111042717A (en) * 2019-12-30 2020-04-21 武昌船舶重工集团有限公司 Large-scale shielding guard gate
CN211950067U (en) * 2020-01-10 2020-11-17 江苏柏瑞鑫铝业科技有限公司 Metal floor slideway structure
CN213807178U (en) * 2020-10-22 2021-07-27 江苏恒新门业有限公司 Side revolving door winch system
CN112901042A (en) * 2021-02-22 2021-06-04 上海声望声学科技股份有限公司 Ultra-large electrically driven sound insulation door structure of wind tunnel anechoic chamber

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114486320A (en) * 2022-04-15 2022-05-13 中国飞机强度研究所 Emergency processing system and method for pressure imbalance for aircraft testing
CN114486320B (en) * 2022-04-15 2022-06-24 中国飞机强度研究所 Emergency processing system and processing method for pressure imbalance for aircraft testing
CN115855428A (en) * 2023-02-09 2023-03-28 中国航空工业集团公司沈阳空气动力研究所 High-temperature wind tunnel pressure-bearing optical cabin door and control method

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