CN108362169A - A kind of emitter - Google Patents
A kind of emitter Download PDFInfo
- Publication number
- CN108362169A CN108362169A CN201810121524.4A CN201810121524A CN108362169A CN 108362169 A CN108362169 A CN 108362169A CN 201810121524 A CN201810121524 A CN 201810121524A CN 108362169 A CN108362169 A CN 108362169A
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- Prior art keywords
- piston
- percussion hammer
- gas
- gun tube
- air cavity
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41F—APPARATUS FOR LAUNCHING PROJECTILES OR MISSILES FROM BARRELS, e.g. CANNONS; LAUNCHERS FOR ROCKETS OR TORPEDOES; HARPOON GUNS
- F41F1/00—Launching apparatus for projecting projectiles or missiles from barrels, e.g. cannons; Harpoon guns
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Toys (AREA)
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Abstract
The embodiment provides a kind of emitter, can solve the problems, such as prior art high pressure gas enter gun tube is unstable, bullet accelerate it is slower.The emitter includes：Gas chamber, gas control equipment, trigger mechanism, gun tube, wherein gas control equipment and trigger mechanism are located at plenum interior, and gun tube is connected with gas chamber.According to an embodiment of the invention, it pushes percussion hammer with high-speed impact piston rod by the pressure difference of percussion hammer both sides, high pressure gas moment is made to enter gun tube with maximum stream flow to push body or bird bullet to emit.Make its movement by then passing through air floating percussion hammer shock piston, therefore it operates flexible, reliability is high, avoid piston motion resistance problem, and piston movement speed is faster, so that the air inlet section moment that high pressure gas enters air cavity is reached maximum, and then high pressure gas moment is made to enter gun tube with maximum stream flow, ensure that high pressure gas enters gun tube to push body or bird bullet is a constant pressure and constant accelerator.
Description
Technical field
The present invention relates to a kind of lift-off technology, more particularly to a kind of pneumatic ram formula gas big gun emitter.
Background technology
With reference to Fig. 2, " impact type guiding valve opens fire with artillery the research and design of mechanism, machine-building [J], 44 (500) to document 1
(2006) 26-28 " disclose it is a kind of transmitting bird bullet air bubble open fire with artillery mechanism, which includes gun tube 4, gas shutoff head 15, piston
Connecting rod 31, piston 33, small air inlet port 17, air inlet connecting mouth 3, deflate connect mouth 2, left air cavity 13, right air cavity 14, high pressure chest 16,
Air storage chamber connecting tube 22, spring 18 and cylinder 20.Assembly relation requirement, gas shutoff head 15 and 4 end seals of gun tube, high pressure chest 16 with
Left air cavity 13 seals and gas is not ganged up, piston 33 and 20 inner wall sealing of cylinder, right air cavity 14 by small air inlet port 17 with
16 gas circuit of high pressure chest is connected to.When work, the first step, by air inlet connecting mouth 3, air cavity 14 is inflated to the right, and pressure is rapid in right air cavity 14
It increases, during right 14 pressure rise of air cavity, the pressure of high pressure chest 16 also slowly rises, because of the small air admission hole of high pressure chest 16
17 stomata very little of road, and there is spring 18 to withstand, therefore 16 pressure value of high pressure chest can be made to finally reach and be maintained at a setting value, if
It is set to 1.3Mpa；Second step is inflated to specified value to the left air cavity 13 being connect with air storage chamber connecting tube 22；Third walks, and opening is put
Gas connects mouth 2 so that 14 air pressure of right air cavity suddenly becomes zero.At this time since 14 air pressure of right air cavity is zero, and the air pressure of high pressure chest 16
1.3MPa is remained as, at this moment piston 33 quickly connects 2 direction of mouth to deflation and moves, and the gas in air accumulator passes through air storage chamber connecting tube
22 rapidly enter gun tube 4, complete air bubble and open fire with artillery process.
With reference to Fig. 3, document 2 " air-flotation type piston emitter " discloses a kind of air-flotation type piston emitter.The device
Including gun tube 4, piston 33, air storage chamber connecting tube 22, cylinder 20, source of the gas valve 10, into/air escape cock valve 11, into/12 and of bleeder pipe
O-ring 34；For 20 right part of cylinder with gun tube 4 by flanged joint, cylinder 20 is equipped with air storage chamber connecting tube close to the side of right end
22, air storage chamber connecting tube 22 is connected to right air cavity 14；4 internal diameter of gun tube and 22 internal diameter of air storage chamber connecting tube etc. are big；Built in cylinder 20
There is a piston 33, piston 33 and 20 inner wall of cylinder are reserved with gap, and the minimum sectional area of this gap is less than into/bleeder pipe 12
Sectional area connect with cylinder 20 into/bleeder pipe 12, and is connected with left air cavity 13, into/set between bleeder pipe 12 and source of the gas valve 10
It sets into/air escape cock valve 11；While being connected to left air cavity 13 with outside atmosphere into/air escape cock valve 11, close and source of the gas valve
10 connection.When work, the first step opens source of the gas valve 10, will connect left air cavity 13 into/air escape cock valve 11, high pressure gas passes through
Into/left the air cavity 13 of the entrance of bleeder pipe 12, while right air cavity 14 is slowly entered by the small―gap suture of cylinder 20 and piston 33, due to
Into/bleeder pipe 12 inner section product more than the sectional area of piston 33 and 20 inner wall preset clearance of cylinder, high pressure gas can be made in this way
It pushes piston 33 to move right, piston 33 is made to contact sealing with O-ring 34, air cavity 14 right in this way is fully sealed position, works as pressure
Power table 21 points out that the pressure of right air cavity 14 reaches predetermined when setting value, closes source of the gas valve 10.Second step will when needing to emit body 5
It dials to set and be connected with outside atmosphere into/air escape cock valve 11, at this moment since the inner section product into/bleeder pipe 12 is more than piston 33
With the sectional area of 20 inner wall preset clearance of cylinder, 33 left air cavity of piston, 13 air pressure reduces rapidly, and makes to generate pressure at left and right sides of piston
Force difference, and the gas of right air cavity 14 is along piston 33 and 20 gap flow at high speed of cylinder, plays the role of pneumatically supported, keeps piston 33 rapid
The left end of left air cavity 13 is moved downward, and the buffering of rubber pad 30 moves downward caused impact force due to 33 high speed of piston.
Since piston 33 moves downward, air storage chamber air pressure at this time can flow through right air cavity 14 by air storage chamber connection 22 and enter in gun tube 4,
Bullet 5 is pushed to launch along gun tube.
It realizes and body or bird bullet is accelerated into preset speed along gun tube 4, mainly require to open fire with artillery mechanism in moment valve
Opening will greatly, and speed is fast.1 operation principle of document is reasonable, but require high pressure chest 16 and left air cavity 13 seal and gas not
It gangs up, piston 33 and 20 inner wall sealing of cylinder, this actually results in piston 33, and resistance increases during exercise, if the pressure that fruit is tested is low
When, for 14 pressure of right air cavity with regard to low, the movement of piston 33 is more difficult.Structure described in document 1 is more complex simultaneously, it is desirable that machining accuracy
It is high.Document 2 solves the problems, such as piston motion resistance using air-flotation type piston apparatus, and mechanism compared in document 1 more
Simply.But the inclined-plane of piston 33 and 20 low-angle of cylinder coordinates, and increases the difficulty of processing of piston 33 and its matches with cylinder 20
Close difficulty；Piston 33 is larger, causes 33 weight of piston big；Only be embedded in the O-ring 34 of cylinder 20 and 4 junction of gun tube with
The contact sealing of piston 33, can largely lead to poorly sealed situation；Cavity structure of the piston 33 for loss of weight can make
Part high pressure gas enters cavity by air storage chamber connecting tube 22 in air storage chamber, causes high pressure gas to enter gun tube unstable, with
And the waste of high pressure gas；When transmitting, gas empties in left air cavity 13, and 33 left and right sides of piston generates pressure difference and makes piston 33
The process for moving downward the left end of left air cavity 13 needs the regular hour, actually causes air storage chamber connecting tube 22 and opens to maximum
Need the regular hour so that the air inflow that high pressure gas enters gun tube 4 is gradual increased process, is added so as to cause bullet 5
Speed is slower.
Invention content
The embodiment provides a kind of emitters, can solve prior art high pressure gas and enter gun tube shakiness
Fixed, bullet accelerates slower problem.To which the present invention provides a kind of rapid fire devices simple in structure, stable.
The embodiment provides a kind of emitters, including：Gas chamber, gas control equipment, trigger mechanism, big gun
Pipe, wherein gas control equipment and trigger mechanism are located at plenum interior, and gun tube is connected with gas chamber；
The gas chamber includes cylinder body, air gauge, high-pressure gas room connecting tube, the gas in cylinder body left end and gas control equipment
Pipe connects, and air gauge is connected at the top of cylinder body, cylinder body right end is connect by flange with gun tube；The trigger mechanism includes that piston connects
Extension bar, percussion hammer, piston, sealing ring, piston brace rod left end are provided with flange, piston brace rod pass through circular hole inside percussion hammer with
Piston connection on the right of percussion hammer, piston are tightly connected by sealing ring and cylinder body, and percussion hammer length is less than piston brace rod method
For blue right end to the length of piston left end, percussion hammer and inboard wall of cylinder block be reserved with gap, and the sectional area of this gap is less than interior section of tracheae
Area；The gas control equipment includes intake valve, transmitting valve, air inlet pipe, left air cavity, right air cavity, and intake valve, transmitting valve are simultaneously
It being connected with air inlet pipe, air inlet pipe is connected to by cylinder body with left air cavity, and left air cavity and right air cavity are located at left and right sides of percussion hammer, into
Air valve is passed into gas chamber for controlling high pressure gas, and transmitting valve is used for left air cavity and atmosphere.
The cylinder body shape is using rectangular or round.
The percussion hammer uses I-shaped support construction or hollow cylinder support construction.
It is provided with sealing ring between the percussion hammer and connecting rod.
The piston brace rod is connected through a screw thread with piston.
The piston section is trapezoidal, and the sealing ring is located at the trapezoidal place of cylinder body and piston cooperation.
The trigger mechanism further includes cushion block, which is pasted on the flange of piston brace rod left end.
High-pressure gas room connecting tube and the inner section of gun tube product are generally equalized.
Piston is more than the internal diameter of gun tube along the right air cavity move distance of gas control equipment.
According to an embodiment of the invention, by using composed emission structure, the pressure difference of air floating percussion hammer both sides is utilized
It pushes percussion hammer with high-speed impact piston rod, high pressure gas moment is made to enter gun tube with maximum stream flow to push body or bird bullet to send out
It penetrates.Make its movement by then passing through air floating percussion hammer shock piston, therefore operate flexibly, reliability is high, avoids piston fortune
Dynamic resistance problem, and piston movement speed is faster, so that the air inlet section moment that high pressure gas enters air cavity is reached maximum, and then make
High pressure gas moment enters gun tube with maximum stream flow, and body or bird bullet is made to obtain the acceleration of bigger, ensure that high pressure gas into
It is a constant pressure and constant accelerator to enter gun tube to push body or bird bullet.Piston cross-section is designed as trapezoidal simultaneously, and cylinder body is close with piston
It is trapezoidal to coordinate with piston at envelope, increase leakproofness using trapezoid cross section, ensure that the stability of device.
Description of the drawings
Fig. 1 shows the emitter of the embodiment of the present invention；
Fig. 2 shows the emitters of prior art Literature 1；
Fig. 3 shows the emitter of prior art Literature 2.
Specific implementation mode
The present invention is understood and realized for the ease of persons skilled in the art, describes the implementation of the present invention in conjunction with attached drawing
Example.
Referring to Fig.1, the embodiment provides a kind of pneumatic ram formula emitter, which includes：Gas chamber, gas
Bullet 5 inside member control apparatus, the trigger mechanism of plenum interior, gun tube 4 and gun tube, wherein gas control equipment and hair
It penetrates mechanism and is located at plenum interior, gun tube (4) is connected with gas chamber.
Gas control equipment includes intake valve 10, transmitting valve 11, air inlet pipe 12, left air cavity 13, right air cavity 14, intake valve
10, transmitting valve 11 is connected with air inlet pipe 12 simultaneously, and air inlet pipe 12 is connected to by the cylinder body 20 of gas chamber with left air cavity 13, left air cavity 13
It is located at 32 left and right sides of percussion hammer with right air cavity 14, intake valve 10 is passed into gas chamber for controlling high pressure gas, emits valve 11
For by left air cavity 13 and atmosphere.
Gas chamber includes cylinder body 20, air gauge 21, high-pressure gas room connecting tube 22, and 20 inside of cylinder body is circle, cylinder inner wall
Grind smooth, 20 left end of cylinder body is connect with the tracheae 12 in gas control equipment, and air gauge 21, cylinder body are connected at 20 top of cylinder body
20 right ends are connect by flange with gun tube 4, and high-pressure gas room connecting tube 22 and the inner section product of gun tube 4 are generally equalized.Preferably,
20 shape of cylinder body is using rectangular or round.
Trigger mechanism includes cushion block 30, connecting rod 31, percussion hammer 32, piston 33, sealing ring 34, and cushion block 30 is pasted on connecting rod
On the flange of 31 left ends, connecting rod 31 passes through the circular hole inside percussion hammer 32 to be connect with the piston 33 positioned at 32 the right of percussion hammer, connects
Bar 31 and 32 contact surface of percussion hammer are smooth, and piston 33 is tightly connected by the sealing ring 34 of its left end with cylinder body 20, and percussion hammer 32 is grown
Degree and the length less than 31 flange right end of connecting rod to 33 left end of piston, piston 33 are more than gun tube 4 along 14 move distance of right air cavity
Internal diameter, percussion hammer 32 and 20 inner wall of cylinder body be reserved with gap, and the inner section that the minimum sectional area of this gap is less than tracheae 12 is accumulated.
According to embodiments of the present invention, percussion hammer 32 preferably uses I-shaped support construction or hollow cylinder support construction.Percussion hammer
It is provided with sealing ring between 32 and connecting rod 31.Piston brace rod 31 is preferably connected through a screw thread with piston 33.Piston 33 cuts open
Face is trapezoidal, and sealing ring 34 is located at the trapezoidal place that cylinder body 20 coordinates with piston 33.
High pressure gas is passed into left air cavity 13 by intake valve 10, the inner section product of tracheae 12 is more than percussion hammer 32 and cylinder body
The sectional area of 20 inner wall preset clearances makes the air pressure of left air cavity 13 be more than the air pressure of right air cavity 14.Percussion hammer is pushed by draught head
With high-speed impact piston, and then gun muzzle is opened, the air inlet section moment that high pressure gas enters gun tube is made to reach maximum stationary value.
Percussion hammer moves speed when hitting piston along cylinder body 20 can carry out theory analysis below and estimation：
If the sectional area of percussion hammer is S, the quality of percussion hammer is m, and the gas pressure on the right of percussion hammer is p, and percussion hammer is from initial position
It moves downward and hits the move distance of piston brace rod for L.If various frictional resistance and energy loss are not considered, according to newton
The expression formula of the law of motion, percussion hammer movement velocity v is
It can obtain
Then
Assuming that percussion hammer is during the motion, the gas pressure perseverance on the right of percussion hammer is p, then (3) formula can be reduced to
When percussion hammer sectional area is S=0.03m2, percussion hammer quality m=2kg, percussion hammer move distance L=0.05m, when the percussion hammer right side
When the gas pressure on side is p=0.1Mpa, by (4) Shi Ke get, the speed that percussion hammer hits piston rod is about 12m/s, it follows that
Percussion hammer pushes piston movement speed quickly, it can be achieved that moment opens gun muzzle, and high pressure gas is made to enter the air inlet section moment of air cavity
Reach maximum, and then high pressure gas moment is made to enter gun tube with maximum stream flow.
When work, it is first turned on source of the gas valve 10, connects air inlet pipe 12, high pressure gas enters left air cavity by air inlet pipe 12
13, since the inner section product of air inlet pipe 12 is more than the gap sectional area of percussion hammer 32 and 20 inner wall of cylinder, the hyperbar promotion of entrance
Percussion hammer 32 and piston rod 31, piston 33 are moved to the right, so that piston 33 is open with cylinder trapezoid cross section and are fitted close and have work
The sealing ring 34 at 33 middle part of plug seals, and high pressure gas enters air storage chamber by high-pressure gas room connecting tube 22.When pressure gauge 21 refers to
When the pressure of the right air cavity 14 shown reaches desired value, source of the gas valve 10 is closed.When needing to emit body, transmitting valve 11 is opened by air inlet
Pipe 12 is communicated with outside atmosphere, at this moment, the gap section due to 12 inner section of air inlet pipe product more than percussion hammer 32 and 20 inner wall of cylinder
Long-pending, 13 gas fast evacuations in left air cavity, the pressure of right air cavity 14 acts on percussion hammer 32, and the gas in right air cavity 14 is along cylinder
20 inner wall of body and 32 gap flow at high speed of percussion hammer eliminate resistance, under the action of pressure difference, percussion hammer 32 to the left side move finally with
31 flange of high-speed impact piston brace rod, and then 13 left end of left air cavity is moved downward rapidly with piston 33.Cushion block 30 buffers
The impact that 33 high-speed motion of piston is brought.Gun muzzle is opened rapidly at this time, and 22 moments of high-pressure gas room connecting tube are fully switched on, high pressure
The flow moment that gas enters the high pressure gas of right ventricle's chamber 14 by high-pressure gas room connecting tube 22 reaches maximum stationary value, and
Bullet 5 is pushed to launch into gun tube 4.
The beneficial effects of the invention are as follows:It is worked using the draught head on percussion hammer both sides, piston brace rod band is hit by percussion hammer
Piston opens gun muzzle, can generate higher opening speed, easy to operate, mechanism automatically resets.Piston movement speed faster, makes
The air inlet section moment that high pressure gas enters air cavity reaches maximum, and then high pressure gas moment is made to enter gun tube with maximum stream flow,
Body or bird bullet is set to obtain the acceleration of bigger, ensure that high pressure gas enters gun tube to push body or bird bullet is a constant pressure and constant
Accelerator.Percussion hammer coordinates with cylinder gap, and coordinates area small, can further decrease the resistance of motion, while alleviating mechanism
Weight.Piston cross-section be designed as it is trapezoidal, cylinder body with it is trapezoidal to coordinate with piston at piston seal, increased using trapezoid cross section
Leakproofness ensure that the stability of device.
Although depicting the present invention by embodiment, it will be appreciated by the skilled addressee that not departing from the present invention's
In the case of spirit and essence, so that it may make the present invention there are many deformation and variation, the scope of the present invention is by the attached claims
To limit.
Claims (9)
1. a kind of emitter, which is characterized in that including：Gas chamber, gas control equipment, trigger mechanism, gun tube (4), wherein gas
Member control apparatus and trigger mechanism are located at plenum interior, and gun tube (4) is connected with gas chamber；
The gas chamber includes cylinder body (20), air gauge (21), high-pressure gas room connecting tube (22), cylinder body (20) left end and gas control
Tracheae (12) connection in device processed, connection air gauge (21), cylinder body (20) right end pass through flange and big gun at the top of cylinder body (20)
Manage (4) connection；
The trigger mechanism includes piston brace rod (31), percussion hammer (32), piston (33), sealing ring (34), piston brace rod
(31) left end is provided with flange, the circular hole that piston brace rod (31) passes through percussion hammer (32) internal and the work on the right of percussion hammer (32)
(33) connection is filled in, piston (33) is tightly connected by sealing ring (34) and cylinder body (20), and percussion hammer (32) length is connected less than piston
For bar (31) flange right end to the length of piston (33) left end, percussion hammer (32) and cylinder body (20) inner wall be reserved with gap, this gap
The inner section that sectional area is less than tracheae (12) is accumulated；
The gas control equipment includes intake valve (10), transmitting valve (11), air inlet pipe (12), left air cavity (13), right air cavity
(14), it intake valve (10), transmitting valve (11) while being connected with air inlet pipe (12), air inlet pipe (12) passes through cylinder body (20) and left air cavity
(13) it is connected to, left air cavity (13) and right air cavity (14) are located at left and right sides of percussion hammer (32), and intake valve (10) is for controlling height
Body of calming the anger is passed into gas chamber, and transmitting valve (11) is used for left air cavity (13) and atmosphere.
2. emitter according to claim 1, which is characterized in that cylinder body (20) shape is using rectangular or round.
3. emitter according to claim 1, which is characterized in that the percussion hammer (32) using I-shaped support construction or
Hollow cylinder support construction.
4. emitter according to claim 1, which is characterized in that be provided between the percussion hammer (32) and connecting rod (31)
Sealing ring.
5. emitter according to claim 1, which is characterized in that the piston brace rod (31) passes through with piston (33)
It is threadedly coupled.
6. emitter according to claim 1, which is characterized in that piston (33) section is trapezoidal, the sealing
Circle (34) is located at the trapezoidal place of cylinder body (20) and piston (33) cooperation.
7. emitter according to claim 1, which is characterized in that the trigger mechanism further includes cushion block (30), the pad
Block (30) is pasted on the flange of piston brace rod (31) left end.
8. emitter according to claim 1, which is characterized in that high-pressure gas room connecting tube (22) and gun tube (4)
Inner section product is generally equalized.
9. emitter according to claim 1, which is characterized in that right air cavity of the piston (33) along gas control equipment
(14) move distance is more than the internal diameter of gun tube (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810121524.4A CN108362169B (en) | 2018-02-07 | 2018-02-07 | kinds of launching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810121524.4A CN108362169B (en) | 2018-02-07 | 2018-02-07 | kinds of launching device |
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| Publication Number | Publication Date |
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| CN108362169A true CN108362169A (en) | 2018-08-03 |
| CN108362169B CN108362169B (en) | 2020-01-31 |
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ID=63004879
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| CN201810121524.4A Active CN108362169B (en) | 2018-02-07 | 2018-02-07 | kinds of launching device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556820A (en) * | 2019-01-26 | 2019-04-02 | 西安工业大学 | High-speed motion body accelerator and its method for high impact shock test |
| CN109580157A (en) * | 2019-01-26 | 2019-04-05 | 西安工业大学 | Simulate the movable body accelerated passage and its method of overload test |
| CN110017727A (en) * | 2019-05-20 | 2019-07-16 | 中国人民解放军军事科学院国防工程研究院 | A kind of high-speed single hull emission test device |
| CN112696976A (en) * | 2021-01-06 | 2021-04-23 | 四川云游九天科技有限公司 | Recoilless pneumatic remote launching device and use method thereof |
| CN112710192A (en) * | 2020-12-31 | 2021-04-27 | 北京博联马赫科技有限公司 | Novel high-pressure releasing device for gas gun launching |
| CN114198148A (en) * | 2021-11-30 | 2022-03-18 | 中煤科工集团沈阳研究院有限公司 | Launching device for emergency rescue and use method thereof |
| CN115342685A (en) * | 2022-07-30 | 2022-11-15 | 成都云鼎智控科技有限公司 | Assembly structure and transmitting device formed by same |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556820A (en) * | 2019-01-26 | 2019-04-02 | 西安工业大学 | High-speed motion body accelerator and its method for high impact shock test |
| CN109580157A (en) * | 2019-01-26 | 2019-04-05 | 西安工业大学 | Simulate the movable body accelerated passage and its method of overload test |
| CN109580157B (en) * | 2019-01-26 | 2023-08-22 | 西安工业大学 | Moving body acceleration channel for simulating overload test and method thereof |
| CN109556820B (en) * | 2019-01-26 | 2024-03-19 | 西安工业大学 | High-speed moving body accelerating device for strong impact test and method thereof |
| CN110017727A (en) * | 2019-05-20 | 2019-07-16 | 中国人民解放军军事科学院国防工程研究院 | A kind of high-speed single hull emission test device |
| CN112710192A (en) * | 2020-12-31 | 2021-04-27 | 北京博联马赫科技有限公司 | Novel high-pressure releasing device for gas gun launching |
| CN112696976A (en) * | 2021-01-06 | 2021-04-23 | 四川云游九天科技有限公司 | Recoilless pneumatic remote launching device and use method thereof |
| CN114198148A (en) * | 2021-11-30 | 2022-03-18 | 中煤科工集团沈阳研究院有限公司 | Launching device for emergency rescue and use method thereof |
| CN114198148B (en) * | 2021-11-30 | 2023-10-24 | 中煤科工集团沈阳研究院有限公司 | Transmitting device for emergency rescue and using method thereof |
| CN115342685A (en) * | 2022-07-30 | 2022-11-15 | 成都云鼎智控科技有限公司 | Assembly structure and transmitting device formed by same |
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| Publication number | Publication date |
|---|---|
| CN108362169B (en) | 2020-01-31 |
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