CN108100254B - Goods couple storage device - Google Patents
Goods couple storage device Download PDFInfo
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- CN108100254B CN108100254B CN201711256467.2A CN201711256467A CN108100254B CN 108100254 B CN108100254 B CN 108100254B CN 201711256467 A CN201711256467 A CN 201711256467A CN 108100254 B CN108100254 B CN 108100254B
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- 238000000034 method Methods 0.000 claims abstract description 7
- 230000009471 action Effects 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D1/00—Dropping, ejecting, releasing, or receiving articles, liquids, or the like, in flight
- B64D1/02—Dropping, ejecting, or releasing articles
- B64D1/08—Dropping, ejecting, or releasing articles the articles being load-carrying devices
- B64D1/12—Releasing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D9/00—Equipment for handling freight; Equipment for facilitating passenger embarkation or the like
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Tents Or Canopies (AREA)
- Package Frames And Binding Bands (AREA)
Abstract
The invention discloses a cargo hook storage device, and belongs to the technical field of helicopter hoisting design. The method comprises the following steps: the goods hook connecting piece is arranged on the round shaft of the goods hook and is connected with the sliding sleeve through connecting rods on two sides of the goods hook connecting piece; the guide rod is arranged on the machine body frame, one end of the guide rod, which is far away from the sliding sleeve, is provided with a limit nut, the other end of the guide rod is arranged in the sliding sleeve in a sliding way, and the rod body of the guide rod is sleeved with a spring and is respectively abutted against the sliding sleeve and the limit nut; a stop block is arranged above the sliding sleeve and is abutted against the locking assembly, and the locking assembly is fixed on the machine body frame; when the goods hook carries goods, the goods hook connecting piece rotates along with the goods hook and drives the stop block to be released from the locking assembly through the connecting rod, so that the spring is kept in a compressed state; when the goods hook is not used for loading goods, under the action force of the spring, the sliding sleeve restores the goods hook to the initial position through the connecting rod and the goods hook connecting piece and is locked by the stop block and the locking assembly.
Description
Technical Field
The invention belongs to the technical field of helicopter hoisting design, and particularly relates to a cargo hook storage device.
Background
The helicopter cargo hook is a core device for hoisting, transferring and releasing the helicopter cargo, but as an optional device, the cargo hook cannot be used all the time, so that how to quickly store the cargo hook becomes a problem to be considered when a hanging and transporting task is not executed.
At present, aiming at unused goods hooks, two methods are generally used in the industry: firstly, dismantle the goods couple and deposit, secondly use the frame fixed hook to fix the goods couple. And dismantle goods couple many times and can produce adverse effect to its life-span, use frame fixed hook to need the manpower to lift up the goods couple and fix again, hard again consuming time.
Disclosure of Invention
The purpose of the invention is as follows: in order to solve the problems, the invention provides a storage device for goods hooks, which utilizes the automatic recovery capability of a compression spring to automatically recover unloaded goods hooks to the initial position so as to realize the storage of the goods hooks.
The technical scheme of the invention is as follows: a cargo hook storage device comprising: the goods hook comprises a goods hook connecting piece, a connecting rod, a sliding sleeve, a guide rod, a spring, a limiting nut, a stop block and a locking assembly;
the goods hook connecting piece is arranged on a round shaft of the goods hook and is connected with the sliding sleeve through connecting rods on two sides of the goods hook connecting piece;
the guide rod is arranged on the machine body frame, one end of the guide rod, which is far away from the sliding sleeve, is provided with a limiting nut, the other end of the guide rod is arranged in the sliding sleeve in a sliding manner, and a rod body of the guide rod is sleeved with a spring and is respectively abutted against the sliding sleeve and the limiting nut;
a stop block is arranged above the sliding sleeve and is abutted against the locking assembly, and the locking assembly is fixed on the machine body frame;
when the goods hook carries goods, the goods hook connecting piece rotates along with the goods hook and drives the stop block to be released from the locking assembly through the connecting rod, so that the spring is kept in a compressed state;
when the goods hook is not used for loading goods, under the action force of the spring, the sliding sleeve restores the goods hook to the initial position through the connecting rod and the goods hook connecting piece and is locked by the stop block and the locking assembly.
Preferably, the locking assembly comprises: rocker arm bracket, torsion spring and rocker arm;
one end of the rocker arm penetrates through the rocker arm bracket and is sleeved at two ends of the hinge shaft, and the other end of the rocker arm abuts against the stop block;
the torsional spring sets up between its both sides rocking arm and cup joints on the articulated shaft, and one end restriction is in rocking arm bracket top, and the other end butt provides the packing force for it on the rocking arm.
Preferably, the articulated shaft is provided with a shaft sleeve, and the rocker arm and the torsion spring are sleeved on the shaft sleeve.
Preferably, one end of the rocker arm close to the stop block is provided with a roller;
the two ends of the roller are respectively connected with the rocker arms at the two sides and are abutted to the stop blocks.
Preferably, two ends of the guide rod are connected with the machine body frame through sleeves;
the sleeve far away from one end of the sliding sleeve is arranged in the inner hole of the guide rod and is limited through a limiting pin.
Preferably, the sliding sleeve is provided with a counter bore, and a lining is arranged in the counter bore;
one end of the bushing is installed on the step surface of the counter bore and is abutted to the spring.
Preferably, the limit nut is provided with a stepped hole with internal threads, the small end of the limit nut is provided with threads and is installed on the guide rod, and a limit pin is additionally arranged;
the big end of the spring is a circular hole, and the spring is arranged in the circular hole and is abutted against the shell.
Preferably, the two ends of the connecting rod are sleeved with bearings, and a gasket is arranged between the rod body and the bearings.
Preferably, the cargo hook connecting piece adopts a split type design, is divided into an upper part and a lower part, and is assembled together through the connecting piece.
Preferably, the two sides of the sliding sleeve, which are close to the connecting rod, are respectively provided with a stop sheet;
the stop piece is integrally L-shaped, one mounting edge is fixed at the bottom side of the sliding sleeve, and the other mounting edge and the connecting rod are connected to one side of the sliding sleeve.
The technical scheme of the invention has the beneficial effects that: according to the goods hook storage device, the unloaded goods hooks are automatically restored to the initial positions by the aid of the matching of the components and the automatic restoration capacity of the compression spring, the goods hooks can be conveniently stored without manual operation, time and labor are saved, the service life of the goods hooks is prolonged, and the goods hook storage device has the advantages of self-adaption, quickness, effectiveness, wide application range and the like.
Drawings
FIG. 1 is a schematic structural view of a preferred embodiment of the cargo hook storage device of the present invention;
FIG. 2 is a schematic structural assembly diagram of the locking assembly of the embodiment shown in FIG. 1;
FIG. 3 is a schematic view of the operation of a preferred embodiment of the storage device for cargo hooks of the present invention;
FIG. 4 is a schematic view of a preferred embodiment of the storage device of the present invention in an inoperative state;
the device comprises a cargo hook connecting piece 1, a connecting rod 2, a sliding sleeve 3, a guide rod 4, a spring 5, a limiting nut 6, a stop block 7, a rocker bracket 8, a torsion spring 9, a rocker arm 10, a shaft sleeve 11, a roller 12, a sleeve 13, a bushing 14 and a stop sheet 15.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
As shown in fig. 1, the present invention provides a storage device for cargo hooks, comprising: the cargo hook comprises a cargo hook connecting piece 1, a connecting rod 2, a sliding sleeve 3, a guide rod 4, a spring 5, a limiting nut 6, a stop block 7 and a locking assembly;
the goods hook connecting piece 1 is arranged on a round shaft of the goods hook, and the goods hook connecting piece 1 is connected with the sliding sleeve 3 through the connecting rods 2 on two sides of the goods hook connecting piece;
in the embodiment, the cargo hook connecting piece 1 adopts a split type design, is divided into an upper part and a lower part, and is assembled together through the connecting piece;
when the cargo hook connecting piece 1 needs to be connected with the cargo hook, one part of the cargo hook connecting piece is firstly buckled on the round shaft of the cargo hook, and the other part of the cargo hook connecting piece is connected into a whole through the fastening piece, so that the split installation is realized, and the installation efficiency is improved.
It can be understood that: the upper part and the lower part of the cargo hook connecting piece 1 can rotate around one part relatively and have a certain degree of tension.
In this embodiment, the bearings are sleeved at two ends of the connecting rod 2, a gasket is arranged between the rod body and the bearings, the two sides of the sliding sleeve 3 close to the connecting rod 2 are respectively provided with the stop pieces 15, and the stop pieces 15 provide support for the installation of the connecting rod 2.
It can be understood that: the whole L type that is of locking piece 15, one of them installation limit is fixed in sliding sleeve 3 bottom side, and another installation limit passes through the bolt with connecting rod 2 and connects in sliding sleeve 3 one side jointly, has realized that connecting rod 2 articulates between sliding sleeve 3 and goods couple connecting piece 1, forms link mechanism.
The guide rod 4 is arranged on the machine body frame, one end of the guide rod, which is far away from the sliding sleeve 3, is provided with a limit nut 6, the other end of the guide rod is arranged in the sliding sleeve 3 in a sliding manner, and the rod body of the guide rod is sleeved with a spring 5 and is respectively abutted against the sliding sleeve 3 and the limit nut 6;
in this embodiment, two ends of the guide rod 4 are connected with the frame of the machine body through the sleeve 13, so as to fix the guide rod 4 on the machine body; the sleeve 13 that the slide bushing 3 one end was kept away from to the guide bar is installed behind the guide bar 4 hole and is spacing through the spacer pin, prevents that guide bar 4 from producing the phenomenon of displacement and breaking away from with sleeve 13 under the condition of atress from taking place.
In this embodiment, sliding sleeve 3 is provided with the counter bore, sets up bush 14 in the counter bore, and 14 one ends of bush are installed on the step face of counter bore and with 5 butts of spring, and sliding sleeve 3 cup joints on guide bar 4 through bush 14, can reduce frictional force between the two.
In this embodiment, stop nut 6 is provided with the shoulder hole that has the internal thread, and the tip has the screw thread and installs on guide bar 4 to install additional and be equipped with the spacer pin, support for spring 5 provides intensity.
The main end of the limiting nut 6 is a circular hole, a gasket can be additionally arranged in the circular hole, the spring 5 is arranged in the circular hole and is abutted against the shell through the gasket, the limiting nut 6 can be prevented from being abraded, the elastic force of the spring 5 can be balanced to act on the limiting nut 6, and the sliding sleeve 3 is good in motion linearity.
A stop block 7 is arranged above the sliding sleeve 3, the stop block 7 is abutted against the locking assembly, and the locking assembly is fixed on the machine body frame.
In this embodiment, as shown in fig. 2: the locking assembly includes: a rocker arm bracket 8, a torsion spring 9 and a rocker arm 10;
one end of the rocker arm 10 penetrates through the rocker arm bracket 8 and is sleeved at two ends of the hinge shaft, and the other end of the rocker arm abuts against the stop block 7; the torsion spring 9 is arranged between the rocker arms 10 on the two sides of the torsion spring and is sleeved on the hinge shaft, one end of the torsion spring is limited above the rocker arm bracket 8, and the other end of the torsion spring is abutted against the rocker arms 10 to provide pressing force for the rocker arms.
It can be understood that: the articulated shaft is provided with axle sleeve 11, and rocking arm 10 and torsional spring 9 cup joint on axle sleeve 11, can reduce the friction of rocking arm 10 and torsional spring and articulated shaft, makes rocking arm 10 keep smooth and easy, the nothing card pause under the effect of torsional spring 9.
In this embodiment, a roller 12 is disposed at one end of the rocker arm 10 close to the stopper 7, two ends of the roller 12 are respectively connected to the rocker arms 10 at two sides and abut against the stopper 7, the roller 12 is kept in contact with the stopper 7, and the stopper 7 is provided with an inclined surface, so that the locking and releasing processes are easier, and the reliability of the device is enhanced.
When the goods couple carries the goods, goods couple connecting piece 1 is rotatory and drives stop block 7 through connecting rod 2 and release from the locking subassembly along the goods couple, makes spring 5 keep compression state, and when the goods couple did not carry the goods, under spring 5's effort, sliding sleeve 3 restores the goods couple to initial position through connecting rod 2 and goods couple connecting piece 1 to with the help of stop block 7 and locking subassembly locking.
The main working process of the device is as follows:
as shown in fig. 3: when the goods hook is not used for loading goods, the device is in a working state, the spring 5 is in an uncompressed state, and the roller 12 is in contact with the stop block 7 under the action of the torsion spring 9 to realize limiting; at this moment, the goods hook connecting piece 1 and the vertical direction form a certain angle, so that the goods hook and the vertical direction form the same angle, and the storage of the goods hook is realized.
As shown in fig. 4: when the goods hook is used for loading goods, the goods hook automatically rotates in the vertical direction to force the goods hook connecting piece 1 to rotate along with the goods hook connecting piece, the sliding sleeve 3 is pulled to move along the guide rod 4 through the connecting rod 2, in the process, the stop block 7 moves along with the sliding sleeve 3 to push the roller 12 to move upwards, the rocker arm 10 is driven to rotate, the torsion spring 9 is compressed, and the release of the stop block 7 is realized; along with the left-right swinging of the goods hook, the spring 5 is always in a compressed state, and the device is in an inoperative state.
After the goods on the goods hook are put in, the spring 5 automatically resets under the action of the self spring force to push the sliding sleeve 3 to move along the guide rod 4, in the process, the stop block 7 moves along with the sliding sleeve 3, when the stop block is in contact with the roller 12, the roller 12 is pushed to move upwards to drive the rocker arm 10 to rotate, the torsion spring 9 is compressed, the stop block 7 continues to move until the initial position is reached, the roller 12 automatically resets under the action of the torsion spring 9, and moves downwards to clamp the stop block 7 to realize limiting; simultaneously, sliding sleeve 3 drives goods couple connecting piece 1 through connecting rod 2 and resets, makes the goods couple get back to initial position, realizes the storage of goods couple.
According to the storage device for the goods hooks, the goods hooks can be conveniently stored without manual operation through the matching of the components. In conclusion, the device has the advantages of self-adaption, rapidness, effectiveness, wide application range and the like.
Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a goods couple storage device which characterized in that: the method comprises the following steps: the goods hook comprises a goods hook connecting piece (1), a connecting rod (2), a sliding sleeve (3), a guide rod (4), a spring (5), a limiting nut (6), a stop block (7) and a locking assembly;
the goods hook connecting piece (1) is arranged on a round shaft of the goods hook, and the goods hook connecting piece (1) is connected with the sliding sleeve (3) through connecting rods (2) on two sides of the goods hook connecting piece;
the guide rod (4) is installed on the machine body frame, one end of the guide rod, which is far away from the sliding sleeve (3), is provided with a limiting nut (6), the other end of the guide rod is installed in the sliding sleeve (3) in a sliding mode, and a rod body of the guide rod is sleeved with a spring (5) and is respectively abutted against the sliding sleeve (3) and the limiting nut (6);
a stop block (7) is arranged above the sliding sleeve (3), the stop block (7) is abutted against the locking assembly, and the locking assembly is fixed on the machine body frame;
when the goods hook carries goods, the goods hook connecting piece (1) rotates along with the goods hook and drives the stop block (7) to release from the locking assembly through the connecting rod (2), so that the spring (5) is kept in a compressed state;
when the goods hook is not used for carrying goods, under the action force of the spring (5), the sliding sleeve (3) restores the goods hook to the initial position through the connecting rod (2) and the goods hook connecting piece, and the goods hook is locked by the stop block and the locking assembly.
2. The cargo hook storage device of claim 1, wherein: the locking assembly includes: a rocker bracket (8), a torsion spring (9) and a rocker (10);
one end of the rocker arm (10) penetrates through the rocker arm bracket and is sleeved at two ends of the hinge shaft, and the other end of the rocker arm is abutted against the stop block (7);
the torsion spring (9) is arranged between the rocker arms (10) on the two sides of the torsion spring and is sleeved on the hinge shaft, one end of the torsion spring is limited above the rocker arm bracket, and the other end of the torsion spring is abutted to the rocker arms (10) to provide pressing force for the torsion spring.
3. The cargo hook storage device of claim 2, wherein: the articulated shaft is provided with a shaft sleeve (11), and the rocker arm (10) and the torsion spring (9) are sleeved on the shaft sleeve (11).
4. The cargo hook storage device of claim 2, wherein: a roller (12) is arranged at one end of the rocker arm (10) close to the stop block (7);
and two ends of the roller (12) are respectively connected with the rocker arms (10) at two sides and are abutted against the stop block (7).
5. The cargo hook storage device of claim 1, wherein: two ends of the guide rod (4) are connected with the machine body frame through sleeves (13);
the sleeve far away from one end of the sliding sleeve (3) is arranged behind the inner hole of the guide rod (4) and is limited by a limiting pin.
6. The cargo hook storage device of claim 5, wherein: the sliding sleeve (3) is provided with a counter bore, and a lining (14) is arranged in the counter bore;
one end of the bushing (14) is installed on the step surface of the counter bore and is abutted against the spring (5).
7. The cargo hook storage device of claim 1, wherein: the limiting nut (6) is provided with a stepped hole with internal threads, the small end of the limiting nut is provided with threads and is installed on the guide rod (4), and a limiting pin is additionally arranged;
the big end of the spring is a circular hole, and the spring (5) is arranged in the circular hole and is abutted against the shell.
8. The cargo hook storage device of claim 1, wherein: and bearings are sleeved at two ends of the connecting rod (2), and a gasket is arranged between the rod body and the bearings.
9. The cargo hook storage device of claim 1, wherein: the cargo hook connecting piece (1) is designed in a split mode, is divided into an upper part and a lower part, and is assembled together through the connecting piece.
10. The cargo hook storage device of claim 1, wherein: two sides of the sliding sleeve (3) close to the connecting rod (2) are respectively provided with a stop piece (15);
the stop piece (15) is integrally L-shaped, one mounting edge is fixed at the bottom side of the sliding sleeve (3), and the other mounting edge and the connecting rod (2) are connected to one side of the sliding sleeve (3) together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711256467.2A CN108100254B (en) | 2017-12-03 | 2017-12-03 | Goods couple storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711256467.2A CN108100254B (en) | 2017-12-03 | 2017-12-03 | Goods couple storage device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108100254A CN108100254A (en) | 2018-06-01 |
| CN108100254B true CN108100254B (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711256467.2A Active CN108100254B (en) | 2017-12-03 | 2017-12-03 | Goods couple storage device |
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| CN (1) | CN108100254B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175294B (en) * | 2020-03-10 | 2023-05-02 | 山东开创健康科技有限公司 | Portable urine detector |
| CN113492976B (en) * | 2020-04-02 | 2023-01-13 | 北京二郎神科技有限公司 | Unmanned aerial vehicle and goods locking mechanical system thereof |
| CN112208769B (en) * | 2020-09-25 | 2022-11-04 | 中国直升机设计研究所 | Adjustable locking mechanism for accommodating and storing hook of goods hung outside helicopter |
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| CN203228929U (en) * | 2013-04-12 | 2013-10-09 | 北京中科银翼航空科技有限公司 | Retractable aircraft hook system |
| CN105501452A (en) * | 2015-12-11 | 2016-04-20 | 中航电测仪器股份有限公司 | Cargo hook device for helicopter as well as usage method and control method of cargo hook device |
| CN205998140U (en) * | 2016-08-30 | 2017-03-08 | 航宇救生装备有限公司 | Collapsible helicopter rope falling unit |
| EP2658778B1 (en) * | 2010-10-08 | 2017-04-12 | Etat français représenté par le Délégué Général pour l'Armement | Securing/releasing device, and related airdrop device |
| CN106672236A (en) * | 2016-08-26 | 2017-05-17 | 航宇救生装备有限公司 | Rapid tethering and separating device |
| CN107010223A (en) * | 2016-01-11 | 2017-08-04 | 埃姆普里萨有限公司 | Longitudinal locking device and its safe trigger for goods in aircraft |
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2017
- 2017-12-03 CN CN201711256467.2A patent/CN108100254B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2658778B1 (en) * | 2010-10-08 | 2017-04-12 | Etat français représenté par le Délégué Général pour l'Armement | Securing/releasing device, and related airdrop device |
| CN203228929U (en) * | 2013-04-12 | 2013-10-09 | 北京中科银翼航空科技有限公司 | Retractable aircraft hook system |
| CN105501452A (en) * | 2015-12-11 | 2016-04-20 | 中航电测仪器股份有限公司 | Cargo hook device for helicopter as well as usage method and control method of cargo hook device |
| CN107010223A (en) * | 2016-01-11 | 2017-08-04 | 埃姆普里萨有限公司 | Longitudinal locking device and its safe trigger for goods in aircraft |
| CN106672236A (en) * | 2016-08-26 | 2017-05-17 | 航宇救生装备有限公司 | Rapid tethering and separating device |
| CN205998140U (en) * | 2016-08-30 | 2017-03-08 | 航宇救生装备有限公司 | Collapsible helicopter rope falling unit |
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| CN108100254A (en) | 2018-06-01 |
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