CN110207556A - A kind of water coupling device - Google Patents
A kind of water coupling device Download PDFInfo
- Publication number
- CN110207556A CN110207556A CN201910518956.3A CN201910518956A CN110207556A CN 110207556 A CN110207556 A CN 110207556A CN 201910518956 A CN201910518956 A CN 201910518956A CN 110207556 A CN110207556 A CN 110207556A
- Authority
- CN
- China
- Prior art keywords
- component
- coupling device
- water coupling
- filling
- hopper
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 230000008878 coupling Effects 0.000 title claims abstract description 26
- 238000010168 coupling process Methods 0.000 title claims abstract description 26
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 26
- 238000003860 storage Methods 0.000 claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 29
- 239000002360 explosive Substances 0.000 claims abstract description 24
- 230000000712 assembly Effects 0.000 claims abstract description 20
- 238000000429 assembly Methods 0.000 claims abstract description 20
- 239000003814 drug Substances 0.000 claims abstract description 14
- 229940079593 drug Drugs 0.000 claims abstract description 14
- 230000000903 blocking effect Effects 0.000 claims abstract description 13
- 229920003023 plastic Polymers 0.000 claims description 22
- 239000004033 plastic Substances 0.000 claims description 22
- 238000005452 bending Methods 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004880 explosion Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000005422 blasting Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
Landscapes
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
- Catching Or Destruction (AREA)
Abstract
The present invention relates to means for loading technical fields, specially a kind of water coupling device, including containing component, the inside for containing component is equipped with charge assemblies, charge assemblies with contain component jointly to filling drug go along with sb. to guard him, and charge assemblies are internally provided with storage assembly, it is connected between storage assembly and filling drug by lower leakage component, and it is provided at the top of charge assemblies through the filling component for containing component setting, the top of component is filled to being connected to blocking component, blocking component is fixed in pull element by connector, and it contains to be provided at the top of component and guides and supports component；It has the beneficial effect that and multiple conveying columns is set inside water coupling device proposed by the present invention, the hopper height on multiple conveying columns surface is different, and the bottom of hopper is provided with material spilling hole, conveys convenient for the explosive layer to different height, and avoids the entrance of dust and sundries in the process.
Description
Technical field
The present invention relates to means for loading correlative technology field, specially a kind of water coupling device.
Background technique
China is currently at infrastructure construction peak period, a large amount of state construction projects hot work in progress, in many construction fields
Require to control blasting vibration using presplit blasting and photoface exploision, manufacture more smooth outline excavation, presplit blasting with
Photoface exploision is currently mainly using Air Coupling explosion and water coincidence explosion, since the compressibility of water is small, in Uncoincided charge
In explosion, water can transmit pressure effect stronger, more evenly as couplant than air, in the condition using suitable parameters
When, water coincidence explosion can obtain control demolition effect well；
In the prior art, water coincidence blast charging cannot be easy to accomplish as air-decouple charge, especially for endless
Whole rock mass, not can guarantee blast hole and leaves enough water, at this moment just need to realize water coincidence explosion using other devices, but
It is inconvenient that traditional water coupling device encapsulates aqueous and explosive, usually therefore reduces the effect of water coupling device powder charge
Rate；For this purpose, the present invention proposes that a kind of water coupling device is used to solve the above problems.
Summary of the invention
The purpose of the present invention is to provide a kind of water coupling devices, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the invention provides the following technical scheme: a kind of water coupling device, including group is contained
Part, the inside for containing component are equipped with charge assemblies, charge assemblies with contain component filling drug gone along with sb. to guard him jointly,
And charge assemblies are internally provided with storage assembly, are connected between storage assembly and filling drug by lower leakage component, and powder charge
Be provided at the top of component through the filling component for containing component setting, the top of the filling component to being connected to blocking component,
Blocking component is fixed in pull element by connector, and is contained to be provided at the top of component and guided and supported component.
Preferably, the component that contains is plastic cylinder, and the rounded column structure of plastic cylinder, the inside of plastic cylinder is opened
Equipped with storage silo, the rounded column structure of storage silo, charge assemblies are fixed on the inner wall of storage silo.
Preferably, the charge assemblies be conveying column, conveying column semicircular in shape column structure, conveying column be provided with it is multiple,
Circumferentially shape is equidistant etc. that sizes are arranged on the inner wall of storage silo for multiple conveying columns, fills the height of drug and the height of conveying column
It spends equal.
Preferably, the filling drug includes aqueous layer, and the top of aqueous layer is provided with explosive layer, and aqueous layer and explosive
Layer is provided with three groups, and three groups of aqueous layers distribute alternately with three groups of explosive layers in being arranged above and below, and sets on the upside of the aqueous layer at top
It is equipped with plugged zone, plugged zone is contacted with the top surface of storage silo, and every group of aqueous layer is communicated by lower leakage component with storage assembly, often
Group aqueous layer is communicated by lower leakage component with storage assembly, and plugged zone is communicated by lower leakage component with storage assembly.
Preferably, the storage assembly is hopper, and the height of hopper semicircular in shape column structure, hopper is less than conveying column
Highly, the height of the hopper and inside multiple conveying columns is different, and lower leakage component is communicated with hopper.
Preferably, the lower leakage component is material spilling hole, and material spilling hole is in circle hole shape structure, and material spilling hole runs through the outer wall of conveying column
Setting, there are two material spilling hole settings, and two material spilling holes are symmetrical about the center of arc of conveying column, and the aperture of material spilling hole is less than
Fill the bore of component.
Preferably, the filling component is flexible hose for loading, the rounded tubular structure of flexible hose for loading, flexible hose for loading and conveying column
It is arranged in a one-to-one correspondence, and the bore of flexible hose for loading is less than the diameter of blocking component.
Preferably, the blocking component is ball-type chock plug, and ball-type chock plug is in sphere structure, after ball-type chock plug is docked at bending
Flexible hose for loading inside, ball-type chock plug is fixed on the top surface of plastic cylinder by the pull element that connector connects.
Preferably, the connector is connecting rod, and the rounded column structure of connecting rod, connecting rod is inclined at drawing group
On the surface of part, pull element is limit plate, and limit plate is arc-shaped plate structure, and limit plate is provided with multiple, multiple limits
Plate circumferentially shape arranged distribution, and multiple limit plates are centered around the outside for guiding and supporting component.
Preferably, the component of guiding and supporting is lift-pull handle, and lift-pull handle is in " Fang " shape structure, the bending place of lift-pull handle
It is provided with corner cut.
Compared with prior art, the beneficial effects of the present invention are:
1. multiple conveying columns are arranged inside water coupling device proposed by the present invention, the hopper height on multiple conveying columns surface is not
Together, and the bottom of hopper is provided with material spilling hole, conveys convenient for the explosive layer to different height, and avoid in the process
The entrance of dust and sundries；
2. flexible hose for loading opening sleeve is existed after explosive is added to plastic cylinder inside by water coupling device proposed by the present invention
On ball-type chock plug, the closure to hopper is realized；
3. water coupling device proposed by the present invention is respectively sealed each layer explosive by multiple conveying columns and contains, promoted
Explosive contains efficiency, and the plastic cylinder after containing is readily transported.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is conveying column arrangement architecture schematic diagram of the present invention；
Fig. 3 is conveying rod structure schematic diagram of the present invention；
Fig. 4 is limit plate structural schematic diagram of the present invention；
Fig. 5 is structure enlargement diagram at A in Fig. 2.
In figure: plastic cylinder 1, conveying column 2, hopper 3, material spilling hole 4, aqueous layer 5, explosive layer 6, plugged zone 7, flexible hose for loading
8, ball-type chock plug 9, connecting rod 10, limit plate 11, lift-pull handle 12.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1 to Fig. 5 is please referred to, the present invention provides a kind of technical solution: a kind of water coupling device, including contain group
Part, the inside for containing component are equipped with charge assemblies, contain component be plastic cylinder 1, the rounded column structure of plastic cylinder 1,
The inside of plastic cylinder 1 offers storage silo, the rounded column structure of storage silo, and charge assemblies are fixed on the inner wall of storage silo
On, charge assemblies are conveying column 2, and 2 semicircular in shape column structure of conveying column, conveying column 2 is provided with multiple, and multiple conveying columns 2 are in
The sizes such as circumferential is equidistant are arranged on the inner wall of storage silo, and the height for filling drug is equal with the height of conveying column 2；
Charge assemblies with contain component filling drug gone along with sb. to guard him jointly, filling drug includes aqueous layer 5, aqueous layer 5 it is upper
Portion is provided with explosive layer 6, and aqueous layer 5 and explosive layer 6 are provided with three groups, and three groups of aqueous layers 5 and three groups of explosive layers 6 are in up and down
Arrangement distributes alternately, and the upside of the aqueous layer 5 at top is provided with plugged zone 7, and plugged zone 7 is contacted with the top surface of storage silo, and every group
Aqueous layer 5 is communicated by lower leakage component with storage assembly, and every group of aqueous layer 5 is communicated by lower leakage component with storage assembly,
And plugged zone 7 is communicated by lower leakage component with storage assembly；
And charge assemblies are internally provided with storage assembly, storage assembly is hopper 3,3 semicircular in shape column structure of hopper, hopper
3 height is less than the height of conveying column 2, and the height of the hopper 3 inside multiple conveying columns 2 is different, lower leakage component and 3 phase of hopper
It is logical, it is connected between storage assembly and filling drug by lower leakage component, lower leakage component is material spilling hole 4, and material spilling hole 4 is in circle hole shape knot
Structure, material spilling hole 4 are arranged through the outer wall of conveying column 2, and there are two the settings of material spilling hole 4, circle of two material spilling holes 4 about conveying column 2
The distribution of arc central symmetry, the aperture of material spilling hole 4 are less than the bore of filling component, and the height of the hopper 3 inside multiple conveying columns 2 is not
Together, and material spilling hole 4 is in the bottom of hopper 3, is so easy to implement and is filled to the explosive material of different height, and avoids
It is mixed between explosive material；
And be provided at the top of charge assemblies through the filling component for containing component setting, filling component is flexible hose for loading 8, filling
The rounded tubular structure of hose 8, flexible hose for loading 8 are arranged in a one-to-one correspondence with conveying column 2, and the bore of flexible hose for loading 8 is less than closure
The diameter of component, the top for filling component is ball-type chock plug 9 to blocking component, blocking component is connected to, and ball-type chock plug 9 is in sphere knot
Structure, ball-type chock plug 9 are docked at the inside of the flexible hose for loading 8 after bending, and ball-type chock plug 9 is solid by the pull element that connector connects
It is scheduled on the top surface of plastic cylinder 1, blocking component is fixed in pull element by connector, and connector is connecting rod 10, even
The rounded column structure of extension bar 10, connecting rod 10 are inclined on the surface of pull element, and pull element is limit plate 11, limit
Position plate 11 is arc-shaped plate structure, and limit plate 11 is provided with multiple, multiple limit plates 11 circumferentially shape arranged distribution, and multiple
Limit plate 11 is centered around the outside for guiding and supporting component, after dosing, by the opening sleeve of flexible hose for loading 8 in the outside of ball-type chock plug 9,
The diameter of ball-type chock plug 9 is greater than the opening bore of flexible hose for loading 8, and the outside expanded support flexible hose for loading 8 of ball-type chock plug 9 is realized to filling
The sealing of hose 8 avoids external dust or sundries from entering the inside of hopper 3 through flexible hose for loading 8；
And contain to be provided at the top of component and guide and support component, guiding and supporting component is lift-pull handle 12, and lift-pull handle 12 is in " Fang " shape
Structure, the bending place of lift-pull handle 12 are provided with corner cut, hold lift-pull handle 12 and lift the plastic cylinder after containing 1, by plastics
Cylinder 1 is carried to means of transport or storage place, when in use, holds lift-pull handle 12 and launches plastic cylinder 1
In explosion hole.
Working principle: in actual work, respectively by multiple groups aqueous layer 5 and multiple groups explosive layer 6 by multiple flexible hose for loading 8 to
It is launched in hopper 3 inside conveying column 2, flexible hose for loading 8 is arranged in a one-to-one correspondence with hopper 3, it avoids mixing between explosive material, and
The height of hopper 3 inside multiple conveying columns 2 is different, and material spilling hole 4 is in the bottom of hopper 3, is so easy to implement to not
Level explosive material is filled, and avoids mixing between explosive material, after dosing, by flexible hose for loading 8
Opening sleeve in the outside of ball-type chock plug 9, the diameter of ball-type chock plug 9 is greater than the opening bore of flexible hose for loading 8, ball-type chock plug 9 to
Outer expanded support flexible hose for loading 8 realizes the sealing to flexible hose for loading 8, external dust or sundries is avoided to enter material through flexible hose for loading 8
The inside of slot 3 holds lift-pull handle 12 and lifts the plastic cylinder after containing 1, plastic cylinder 1 is carried to means of transport or is deposited
Place is put, when in use, lift-pull handle 12 is held and launches plastic cylinder 1 in explosion hole；The present invention proposes
Water coupling device each layer explosive be sealed respectively by multiple conveying columns 2 contain, promote explosive contains efficiency,
And the plastic cylinder 1 after containing is readily transported.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of water coupling device, including contain component, it is characterised in that: the inside for containing component is equipped with powder charge
Component, charge assemblies with contain component filling drug gone along with sb. to guard him jointly, and charge assemblies are internally provided with storage assembly,
It is connected between storage assembly and filling drug by lower leakage component, and is provided with to run through at the top of charge assemblies and contains component setting
Filling component, it is described filling component top pull element is fixed on by connector to blocking component, blocking component is connected to
On, and contain to be provided at the top of component and guide and support component.
2. a kind of water coupling device according to claim 1, it is characterised in that: the component that contains is plastic cylinder
(1), plastic cylinder (1) rounded column structure, the inside of plastic cylinder (1) offer storage silo, the rounded cylinder of storage silo
Structure, charge assemblies are fixed on the inner wall of storage silo.
3. a kind of water coupling device according to claim 2, it is characterised in that: the charge assemblies are conveying column
(2), conveying column (2) semicircular in shape column structure, conveying column (2) are provided with multiple, and circumferentially shape is equidistant for multiple conveying columns (2)
Etc. sizes be arranged on the inner wall of storage silo, the height for filling drug is equal with the height of conveying column (2).
4. a kind of water coupling device according to claim 3, it is characterised in that: the filling drug includes aqueous layer
(5), the top of aqueous layer (5) is provided with explosive layer (6), and aqueous layer (5) and explosive layer (6) are provided with three groups, three groups of water
Liquid layer (5) distributes alternately with three groups of explosive layers (6) in being arranged above and below, and is provided with plugged zone on the upside of the aqueous layer (5) at top
(7), plugged zone (7) is contacted with the top surface of storage silo, and every group of aqueous layer (5) is communicated by lower leakage component with storage assembly, often
Group aqueous layer (5) is communicated by lower leakage component with storage assembly, and plugged zone (7) passes through lower leakage component and storage assembly phase
It is logical.
5. a kind of water coupling device according to claim 4, it is characterised in that: the storage assembly is hopper (3),
Hopper (3) semicircular in shape column structure, the height of hopper (3) is less than the height of conveying column (2), and multiple conveying columns (2) are internal
Hopper (3) height it is different, lower leakage component is communicated with hopper (3).
6. a kind of water coupling device according to claim 5, it is characterised in that: the lower leakage component is material spilling hole
(4), material spilling hole (4) is in circle hole shape structure, and outer wall of the material spilling hole (4) through conveying column (2) is arranged, and material spilling hole (4) is provided with two
A, two material spilling holes (4) are symmetrical about the center of arc of conveying column (2), and the aperture of material spilling hole (4) is less than filling component
Bore.
7. a kind of water coupling device according to claim 6, it is characterised in that: the filling component is flexible hose for loading
(8), flexible hose for loading (8) rounded tubular structure, flexible hose for loading (8) is arranged in a one-to-one correspondence with conveying column (2), and flexible hose for loading
(8) bore is less than the diameter of blocking component.
8. a kind of water coupling device according to claim 1, it is characterised in that: the blocking component is ball-type chock plug
(9), ball-type chock plug (9) is in sphere structure, and ball-type chock plug (9) is docked at the inside of the flexible hose for loading (8) after bending, ball-type chock plug
(9) it is fixed on the top surface of plastic cylinder (1) by the pull element that connector connects.
9. a kind of water coupling device according to claim 8, it is characterised in that: the connector is connecting rod
(10), connecting rod (10) rounded column structure, connecting rod (10) are inclined on the surface of pull element, and pull element is
Limit plate (11), limit plate (11) are arc-shaped plate structure, and limit plate (11) is provided with multiple, and multiple limit plates (11) are in circle
All shape arranged distributions, and multiple limit plates (11) are centered around the outside for guiding and supporting component.
10. a kind of water coupling device according to claim 9, it is characterised in that: the component of guiding and supporting is lifting handle
Hand (12), lift-pull handle (12) are in " Fang " shape structure, and the bending place of lift-pull handle (12) is provided with corner cut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910518956.3A CN110207556B (en) | 2019-06-16 | 2019-06-16 | Water coupling charging means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910518956.3A CN110207556B (en) | 2019-06-16 | 2019-06-16 | Water coupling charging means |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110207556A true CN110207556A (en) | 2019-09-06 |
| CN110207556B CN110207556B (en) | 2024-04-12 |
Family
ID=67792947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910518956.3A Active CN110207556B (en) | 2019-06-16 | 2019-06-16 | Water coupling charging means |
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| Country | Link |
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| CN (1) | CN110207556B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB725371A (en) * | 1952-04-29 | 1955-03-02 | L Air Liqulde Sa Pour L Etude | Process for loading blast holes |
| CA1315573C (en) * | 1989-05-12 | 1993-04-06 | Phil O'garr | Method and apparatus for charging waterlogged boreholes with explosives |
| RU2306522C1 (en) * | 2006-02-07 | 2007-09-20 | Государственное образовательное учреждение высшего профессионального образования "Тихоокеанский государственный университет" | Method of forming divided charges in flooded wells |
| KR101040787B1 (en) * | 2010-08-16 | 2011-06-13 | 태진건설 주식회사 | Blasting method in horizontal direction using deck charge |
| RU116996U1 (en) * | 2012-01-25 | 2012-06-10 | Общество с ограниченной ответственностью Научно-техническая фирма "Взрывтехнология" | WELL CHARGE OF PATROWNED EXPLOSIVES IN POLYMERIC SHELLS |
| CN107367206A (en) * | 2017-09-16 | 2017-11-21 | 金堆城钼业集团有限公司 | A kind of blast charging structure and loading method |
| CN107560507A (en) * | 2017-09-29 | 2018-01-09 | 贵州大学 | A kind of blast charging pipe accurately to feed |
| CN109141147A (en) * | 2018-10-10 | 2019-01-04 | 六盘水久翔爆破工程有限责任公司 | A kind of radial direction water coincidence demolition set |
| CN109708543A (en) * | 2018-11-28 | 2019-05-03 | 安徽江南爆破工程有限公司 | Eccentric retaining wall does not couple continuous charging structure and its application method |
| CN109737843A (en) * | 2019-01-18 | 2019-05-10 | 武汉理工大学 | A kind of modularization roll type does not couple blast charging device and method |
| CN210123262U (en) * | 2019-06-16 | 2020-03-03 | 保利民爆哈密有限公司 | Water coupling charging device |
-
2019
- 2019-06-16 CN CN201910518956.3A patent/CN110207556B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB725371A (en) * | 1952-04-29 | 1955-03-02 | L Air Liqulde Sa Pour L Etude | Process for loading blast holes |
| CA1315573C (en) * | 1989-05-12 | 1993-04-06 | Phil O'garr | Method and apparatus for charging waterlogged boreholes with explosives |
| RU2306522C1 (en) * | 2006-02-07 | 2007-09-20 | Государственное образовательное учреждение высшего профессионального образования "Тихоокеанский государственный университет" | Method of forming divided charges in flooded wells |
| KR101040787B1 (en) * | 2010-08-16 | 2011-06-13 | 태진건설 주식회사 | Blasting method in horizontal direction using deck charge |
| RU116996U1 (en) * | 2012-01-25 | 2012-06-10 | Общество с ограниченной ответственностью Научно-техническая фирма "Взрывтехнология" | WELL CHARGE OF PATROWNED EXPLOSIVES IN POLYMERIC SHELLS |
| CN107367206A (en) * | 2017-09-16 | 2017-11-21 | 金堆城钼业集团有限公司 | A kind of blast charging structure and loading method |
| CN107560507A (en) * | 2017-09-29 | 2018-01-09 | 贵州大学 | A kind of blast charging pipe accurately to feed |
| CN109141147A (en) * | 2018-10-10 | 2019-01-04 | 六盘水久翔爆破工程有限责任公司 | A kind of radial direction water coincidence demolition set |
| CN109708543A (en) * | 2018-11-28 | 2019-05-03 | 安徽江南爆破工程有限公司 | Eccentric retaining wall does not couple continuous charging structure and its application method |
| CN109737843A (en) * | 2019-01-18 | 2019-05-10 | 武汉理工大学 | A kind of modularization roll type does not couple blast charging device and method |
| CN210123262U (en) * | 2019-06-16 | 2020-03-03 | 保利民爆哈密有限公司 | Water coupling charging device |
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| Publication number | Publication date |
|---|---|
| CN110207556B (en) | 2024-04-12 |
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