CN104859819B - Underwater hiding-machine hatch door and the latent device of the underwater sightseeing with the hatch door - Google Patents
Underwater hiding-machine hatch door and the latent device of the underwater sightseeing with the hatch door Download PDFInfo
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- CN104859819B CN104859819B CN201510296051.8A CN201510296051A CN104859819B CN 104859819 B CN104859819 B CN 104859819B CN 201510296051 A CN201510296051 A CN 201510296051A CN 104859819 B CN104859819 B CN 104859819B
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- locking
- ratchet
- door cover
- door
- lock shaft
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Abstract
The present invention provides a kind of underwater hiding-machine hatch door and the latent device of the underwater sightseeing with the hatch door, to realize the two-way pressure-resistant seal of hatch door.Hatch door includes locking rotating disk, lock shaft, ratchet, spacing ratchet, out of my cabin ratchet, spanner, O-ring seals, axle sleeve, door cover, ratchet torsion spring, cabin internal lock spanner and several retaining mechanisms；Retaining mechanism includes locking connecting rod, latch segment, the locking stop collar of cylindricality, and the latch segment for locking connecting rod distal end stretches into hatch door fence；Then locking rotating disk is made to be moved to direction in cavity again, the center-side of the locking connecting rod being connected with locking rotating disk is moved to direction in cavity, locking stop collar turns into the fulcrum of locking connecting rod, door cover is brought into close contact with hatch door fence using lever force together with, reach pretension sealing function.
Description
Technical field
The present invention relates to submersible technical field, specifically, a kind of hatch door of underwater hiding-machine is referred to and with this
The latent device of the underwater sightseeing of hatch door.
Background technology
The latent device product of underwater sightseeing of the existing market also without CCS (China Classification Society Quality Assurance Ltd.) certification, does not have yet
It is provided with corresponding hatch door.
Hatch door requirement：Bidirection press and pressure-resistant seal can be born, specifically, it is air tight when pressure is 0.01Mpa in cabin,
It is water-tight when hydraulic pressure is 50 meters of depth of water out of my cabin.
The content of the invention
Present invention is primarily intended to provide a kind of underwater hiding-machine hatch door and the latent device of underwater sightseeing with the hatch door, to realize
The two-way pressure-resistant seal of hatch door.
To realize above-mentioned technological invention, following technical scheme is employed：
Underwater hiding-machine hatch door, it is characterized in that：The hatch door includes locking rotating disk 16, lock shaft 17, ratchet 1, spine
Pawl spacing 2, ratchet 3, out of my cabin spanner 4, O-ring seals 5, axle sleeve 6, door cover 8, ratchet torsion spring 11, cabin internal lock spanner 18 with
And some groups of retaining mechanisms；
The lock shaft 17 is located at the central axis of door cover 8, the central axis of lock shaft 17 and the center of door cover 8
Axis overlaps, and the two ends of lock shaft 17 penetrate door cover 8, and it is outer to define one end positioned at door cover lateral surface of lock shaft 17
End, it is the inner to define one end positioned at door cover medial surface of lock shaft 17；Axle sleeve 6 is cased with outer end on lock shaft 17,
O-ring seals 5 are provided between axle sleeve 6 and lock shaft 17, axle sleeve 6 is fixedly connected with door cover 8；
Between axle sleeve 6 and the inner of lock shaft 17, the direction from door cover extroversion door cover sets gradually on lock shaft 17
There are ratchet 3 and locking rotating disk 16, ratchet 3 is fixed on lock shaft 17 and can be rotated together with lock shaft 17, locks rotating disk 16
Be enclosed within lock shaft 17 and be threadedly coupled with lock shaft 17, ratchet 1 is fixed with locking rotating disk 16, ratchet and locking rotating disk 16 it
Between be provided with ratchet torsion spring 11, the inner side of door cover 8 is towards being fixed with ratchet spacing 2, the head of ratchet 1 on locking rotating disk direction
Can engage and separate with ratchet 3, the afterbody of ratchet spacing with ratchet 2 can be contacting and separating；
Some groups of retaining mechanisms are also evenly distributed with the side wall for locking rotating disk 16, every group of retaining mechanism includes locking
The locking stop collar 10 of connecting rod 15, latch segment 14, cylindricality, the proximal part of the locking connecting rod 15 is with the activity of locking rotating disk 16 even
Connect, the locking distal end of connecting rod 15 and the latch segment 14 by can the bolt 13 that cuts off of forced shears be fixedly connected, the locking is limited
The centerline axis parallel of central axis and the lock shaft 17 of position set 10, the locking connecting rod 15 is from the locking stop collar 10 of cylindricality
Side wall is passed through, and the locking stop collar 10 is flexibly connected with the medial surface of door cover 8, and locking stop collar 10 can be spacing to lock
10 central axis of itself of set rotate for axle.
Above-mentioned underwater hiding-machine hatch door, the outer end of lock shaft 17 is threaded with spanner 4 out of my cabin, the inner screw thread of lock shaft 17
It is connected with cabin internal lock spanner 18.
Underwater hiding-machine hatch door, retaining mechanism is 4-10 groups.
It is a kind of with a kind of any of the above-described underwater sightseeing of the hatch door of structure dive device, it is characterized in that：Including device of diving
Cavity, hatch door and hatch door fence 9, door cover 8 are hinged with hatch door fence 9, and door cover 8 passes through hatch door fence 9 and latent device cavity
A cavity is surrounded jointly；The groove come in and gone out for latch segment 14 is provided with hatch door fence 9, the latch segment 14 can extend into groove
It is interior.
Above-mentioned underwater sightseeing is dived device, is also connected by strength enabling bolt 7 between door cover 8 and hatch door fence 9.
Above-mentioned underwater sightseeing is dived device, and the edge of hatch door fence 9 is fixedly connected with two rail end flaps 20, the cabin
It is fixed with two door cover flaps 21 on door closure 8, a pair of two door cover flaps 21 and two rail end flaps 20
One is hinged, and spring shaft is connected between two pin joints, door cover is cased with spring shaft and opens secondary spring 19.
Above-mentioned underwater sightseeing is dived device, and door cover flap positioning tail 27, fence are further fixed on door cover flap 21
Door cover is fixed with end hinge plate 20 and opens limited block 12, it is fixed in door cover flap that the door cover opens limited block 12
On the movement locus of position tail 27.
It is an advantage of the invention that：The present invention controls the opening and closing of hatch door using purely mechanic mode, relative to electronics control
Mode processed, good airproof performance, relatively reliable safety.
Brief description of the drawings
Fig. 1 is the sectional structure chart of front view of the invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the structural representation that ratchet, ratchet, ratchet be spacing, ratchet torsion spring coordinates.
Fig. 4-1 is the structural representation of locking rotating disk in Fig. 1；
Fig. 4-2 is the top view of Fig. 4-1；
Fig. 5 is the spacing schematic enlarged-scale view of ratchet, ratchet in Fig. 1；
Fig. 6-1 is the schematic enlarged-scale view of door cover in Fig. 1；
Fig. 6-2 is the top view of Fig. 6-1；
Fig. 7-1 is the schematic enlarged-scale view of locking connecting rod in Fig. 1；
Fig. 7-2 is the top view of Fig. 7-1；
Fig. 8 is the structural representation that rail end flap is connected with door cover flap；
Fig. 9 is the top view of Fig. 8 middle deck door cover hinge plates；
Wherein：1- ratchets；2- ratchets are spacing；3- ratchets；4- spanners out of my cabin；5-O shape sealing rings；6- axle sleeves；7- strengths are opened
Door bolt；8- door covers；9- hatch door fences；10- locks stop collar；11- ratchet torsion springs；12- door covers open limited block；13-
Can forced shears cut-out bolt；14- latch segments；15- locks connecting rod；16- locks rotating disk；17- lock shafts；18- cabins internal locking is pulled
Hand；19- door covers open secondary spring；20- rail end flaps；21- door cover flaps；22- locks the nearly heart of connecting rod
End；23- ratchet locating shafts；Fixed position of the 26- door cover flaps on door cover；27- door covers flap positions tail.
Specific embodiment
Such as Fig. 1-2, underwater sightseeing of the invention dive device, including dive device cavity, hatch door and hatch door fence 9, the hatch door
Including locking rotating disk 16, lock shaft 17, out of my cabin ratchet 1, ratchet spacing 2, ratchet 3, spanner 4, O-ring seals 5, axle sleeve 6, hatch door
Lid 8, ratchet torsion spring 11, cabin internal lock spanner 18 and some groups of retaining mechanisms, door cover 8 are hinged with hatch door fence 9, door cover
8 surround a cavity jointly by hatch door fence 9 with latent device cavity, and O-ring seal is set between door cover 8 and hatch door fence 9；
The lock shaft 17 is located at the central axis of door cover 8, the central axis of lock shaft 17 and the center of door cover 8
Axis overlaps, and the two ends of lock shaft 17 penetrate door cover 8, and the one end positioned at door cover lateral surface for defining lock shaft 17 is outer end
(upper end of lock shaft 17 is shown as in Fig. 1), one end positioned at door cover medial surface for defining lock shaft 17 is the inner (in Fig. 1
It is shown as the lower end of lock shaft 17)；On lock shaft 17 axle sleeve 6, contact site between axle sleeve 6 and lock shaft 17 are cased with outer end
Position sets twice O-ring seal 5, can be used as pressure seal, and seal pressure is consolidated up to 50 meters of depth of waters, axle sleeve 6 with door cover 8
Fixed connection；The outer end of lock shaft 17 is threaded with spanner 4 out of my cabin, and spanner 4 is locked as the unlocking key of door cover 8 out of my cabin
The inner of axle 17 is threaded with cabin internal lock spanner 18, is used for cabin inward swinging door；
Between axle sleeve 6 and cabin internal lock spanner 18, the direction from cavity extroversion cavity (is shown as from top to bottom in Fig. 1
Direction), ratchet 3 and locking rotating disk 16 are disposed with lock shaft 17, ratchet 3 is fixed on lock shaft 17 and can be with lock
Mandrel 17 is rotated together with, and locks structure such as Fig. 4-1 and 4-2 of rotating disk 16, and locking rotating disk 16 is enclosed within lock shaft 17, locks rotating disk
Centre bore is provided with screw thread on 16, and screw thread, locking rotating disk 16 and the screw thread of lock shaft 17 are also equipped with the relevant position of lock shaft 17
Coordinate, locking rotating disk 16 is done in the presence of screw and moved back and forth (be shown as moving up and down in Fig. 1) along lock shaft 17；Institute
The external diameter of the external diameter more than ratchet 3 of locking rotating disk 16 is stated, is easy to fixed pawl；Ratchet 1 is turned by ratchet locating shaft 23 with locking
The edge of the lateral surface (being shown as locking the upper surface of rotating disk 16 in Fig. 1) of disk 16 is flexibly connected, and such as Fig. 3 and Fig. 5, ratchet 1 is wrapped
Ratchet head and ratchet afterbody are included, ratchet locating shaft 23 is located between ratchet head and ratchet afterbody, and ratchet 1 can be positioned around ratchet
Axle 23 is rotated, and ratchet torsion spring 11 is provided between the lateral surface of ratchet and locking rotating disk 16, and the medial surface of door cover 8 (shows in Fig. 1
It is shown as the lower surface of door cover 8) to ratchet spacing 2 is fixed with direction in cavity, the head of ratchet 1 can be engaged with ratchet 3
And separation, the afterbody of ratchet spacing with ratchet 2 can be contacting and separating.
6 groups of retaining mechanisms are also evenly distributed with the side wall for locking rotating disk 16, every group of retaining mechanism includes that locking connects
Bar 15, latch segment 14, the locking stop collar 10 of cylinder, lock structure such as Fig. 7-1 and Fig. 7-2 of connecting rod 15, and the locking connects
The proximal part 22 of bar is flexibly connected with locking rotating disk 16, and the locking distal end of connecting rod 15 passes through with latch segment 14 can strong shear
Disconnected bolt 13 is fixedly connected, and the groove come in and gone out for latch segment 14 is provided with hatch door fence 9, and the latch segment 14 can extend into
In groove, the centerline axis parallel of central axis and the lock shaft 17 of the locking stop collar 10, the locking connecting rod 15 is from cylindricality
The side wall of locking stop collar 10 pass through, locking connecting rod 15 is slided in locking stop collar 10, such as Fig. 6-1 and 6-2 is described
Locking stop collar 10 is flexibly connected with the medial surface of door cover 8, and locking stop collar 10 can be with locking stop collar 10 itself
Heart axis rotates for axle, is easy to locking connecting rod to be moved along a straight line in locking stop collar 10.
Such as Fig. 8 and 9, the edge of hatch door fence 9 is fixedly connected with two rail end flaps 20 of arc, the hatch door
Two door cover flaps 21 (position of label 26 in such as Fig. 6-1 and 6-2), two door cover flaps 21 are fixed with lid 8
It is one-to-one with two rail end flaps 20 to be hinged, spring shaft is connected between two pin joints, hatch door is cased with spring shaft
Lid opens secondary spring 19.The door cover opens the deadweight that door cover 8 can be offset when secondary spring 19 is opened for hatch door, just
In the unlatching of door cover 8.
Door cover flap positioning tail 27 is further fixed on door cover flap 21, it is fixed on rail end flap 20
There is door cover to open limited block 12, door cover flap positions tail 27 as the opening of door cover 8 does clockwise movement, with cabin
After door closure opens the contact of limited block 12, angle limit effect is played in the stop motion of door cover 8.
When closed, first be fastened on door cover 8 on hatch door fence 9 by hatch door of the invention, then according to two mechanical journeys
Sort run, i.e., first stretch out locking connecting rod 15, and the latch segment 14 positioned at the locking distal end of connecting rod 15 stretches into hatch door fence 9；So
Locking rotating disk 16 is set to be moved (be shown as descending in Fig. 1) to direction in cavity again afterwards, the locking connecting rod being connected with locking rotating disk 16
15 center-side is moved to direction in cavity, and locking stop collar 10 turns into the fulcrum of locking connecting rod 15, using lever force by hatch door
Together with lid 8 is brought into close contact with hatch door fence 9, pretension sealing function is reached.Specifically, by taking Fig. 2 as an example, turning clockwise out of my cabin
Spanner 4, lock shaft 17 together turns clockwise with spanner 4 out of my cabin, with lock shaft 17 fix ratchet 3 also with lock shaft 17 together
Turn clockwise, because in the presence of ratchet spring 11, the head of ratchet 1 is that pretension is engaged with ratchet 3, ratchet 3 drives spine
Pawl 1 is moved, and ratchet 1 rotates around ratchet locating shaft first, the head clockwise movement of ratchet 1, ratchet afterbody clockwise movement, in spine
In the presence of wheel spring 11, ratchet 1 drives locking rotating disk 16 to do clockwise movement by ratchet locating shaft, now, turns with locking
, with the locking clockwise movement of rotating disk 16, locking connecting rod 15 is in locking stop collar 10 for the proximal part 22 of the locking connecting rod of disk activity connection
Interior slip, the latch segment 14 at the locking distal end of connecting rod 15 enters the groove of hatch door fence 9, and first Mechanically programm completes.Work as locking
After connecting rod 15 enters hatch door fence, continue rotation lock mandrel 17, ratchet continues band pawl motion, when ratchet afterbody and ratchet are limited
When position 2 contacts, ratchet spacing 2 prevents ratchet afterbody with the locking clockwise movement of rotating disk 16, and the head of ratchet 1 is separated with ratchet 3,
Ratchet and locking rotating disk stop motion, lock the stop motion of connecting rod 15, and locking rotating disk 16 does not occur relative fortune relative to door cover 8
It is dynamic, but ratchet continues to turn clockwise, and relative to the initial position of locking rotating disk 16, locking rotating disk 16 is to direction in cavity
(being shown as in downward direction in Fig. 1) is mobile, with the proximal part for locking connecting rod 15 being flexibly connected on the locking side wall of rotating disk 16 to sky
Direction movement (being shown as in downward direction in Fig. 1) in chamber, because the latch segment 14 at the distal end for locking connecting rod 15 is the
Entered into one Mechanically programm in the groove of hatch door fence 9, lock the middle part of connecting rod 15 has locking stop collar 10 as fulcrum again,
Locking connecting rod 15 is turned into a lever, lock the latch segment 14 of connecting rod to direction outside cavity (being shown as upward direction in Fig. 1),
Namely door cover direction motion so that latch segment 14 is contacted with the top surface of the groove of hatch door fence 9, even if door cover 8 is to hatch door
The direction of fence 9 is close to, and is closely pressed on the sealing surface of hatch door fence 9, and door cover 8 is sealed with hatch door fence 9 by O-ring.
When needing to open hatch door of the invention, rotate counterclockwise spanner 4 out of my cabin, locking rotating disk 16 is transported to direction outside hatch door
Dynamic (being shown as in Fig. 1 up), then locks connecting rod 15 and withdraws, and seal failure, door cover is easy to the discrepancy of personnel after opening.
Also connected by strength enabling bolt 7 between above-mentioned door cover 8 and hatch door fence 9.Strength enabling bolt 7, can be
During hatch door locking mechanism-trouble, rescue personnel's strength opened door.When strength opened door is needed, rotate strength with instrument and open
Door bolt 7, in the presence of strength enabling bolt 7, door cover 8 is moved out relative to hatch door fence 9, and then is driven and hatch door
The locking stop collar 10 of the connection of lid 8 is moved out, and now, the locking connecting rod 15 through locking stop collar 10 is moved out, and is locked
Block 14 is still stuck in the groove on hatch door fence 9, and like this, strength enabling bolt 7 is between latch segment 14 and locking connecting rod 15
Can forced shears cut-out bolt 13 apply an active force for radial direction, when active force is sufficiently large, can forced shears cut-out spiral shell
Bolt 13 is fractureed, and latch segment 14 and locking connecting rod 15 are separated, so that door cover 8 is unlocked, strength enabling bolt 7 is safety device,
Used under fortuitous event.
Claims (7)
1. underwater hiding-machine hatch door, it is characterised in that：The hatch door includes locking rotating disk (16), lock shaft (17), ratchet (1), spine
Pawl spacing (2), ratchet (3), O-ring seals (5), axle sleeve (6), door cover (8), ratchet torsion spring (11) and some groups of locking machines
Structure；
The lock shaft (17) at the central axis of door cover (8), the central axis of lock shaft (17) and door cover (8)
Central axes, the two ends of lock shaft (17) penetrate door cover (8), define lock shaft (17) positioned at door cover (8) outside
The one end in face is outer end, and it is the inner to define one end positioned at door cover (8) medial surface of lock shaft (17)；Lock shaft is leaned on (17)
Axle sleeve (6) is cased with nearly outer end, O-ring seals (5), axle sleeve (6) and door cover are provided between axle sleeve (6) and lock shaft (17)
(8) it is fixedly connected；
Between axle sleeve (6) and lock shaft (17) the inner, the direction from door cover (8) extroversion door cover (8), on lock shaft (17)
Ratchet (3) and locking rotating disk (16) are disposed with, ratchet (3) is fixed on lock shaft (17) and can be with lock shaft (17)
With rotation, locking rotating disk (16) is enclosed within lock shaft (17) and is threadedly coupled with lock shaft (17), fixed in locking rotating disk (16)
There is ratchet (1), ratchet torsion spring (11) is provided between ratchet and locking rotating disk (16), the inner side of door cover (8) turns towards locking
It is fixed with that ratchet is spacing (2) on disk direction, the head of ratchet (1) can be engaged and separated with ratchet (3), and the afterbody of ratchet can
(2) spacing with ratchet are contacting and separating；
Some groups of retaining mechanisms are also evenly distributed with the side wall of locking rotating disk (16), every group of retaining mechanism includes that locking connects
Bar (15), latch segment (14), the locking stop collar (10) of cylindricality, proximal part and locking rotating disk (16) of locking connecting rod (15)
It is flexibly connected, locking connecting rod (15) distal end and the latch segment (14) is by can the bolt (13) that cuts off of forced shears is fixed connects
Connect, the centerline axis parallel of central axis and the lock shaft (17) of locking stop collar (10), the locking connecting rod (15) from
The side wall of the locking stop collar (10) of cylindricality is passed through, and locking stop collar (10) is flexibly connected with the medial surface of door cover (8),
Locking stop collar (10) can be to lock stop collar (10) central axis of itself as axle rotates.
2. underwater hiding-machine hatch door according to claim 1, it is characterised in that：The outer end threaded connection of the lock shaft (17)
The inner for having spanner (4) out of my cabin, lock shaft (17) is threaded with cabin internal lock spanner (18).
3. underwater hiding-machine hatch door according to claim 1 and 2, it is characterised in that：The retaining mechanism is 4-10 groups.
4. there is the latent device of underwater sightseeing of any hatch doors of claim 1-3, it is characterised in that：Including latent device cavity, hatch door
And hatch door fence (9), door cover (8) is hinged with hatch door fence (9), and door cover (8) is by hatch door fence (9) and latent device cavity
A cavity is surrounded jointly；The groove come in and gone out for latch segment (14) is provided with hatch door fence (9), the latch segment (14) can
Stretch into groove.
5. the latent device of underwater sightseeing according to claim 4, it is characterised in that：The door cover (8) and hatch door fence (9) it
Between also by strength enabling bolt (7) connect.
6. the latent device of underwater sightseeing according to claim 4 or 5, it is characterised in that：The edge of the hatch door fence (9) is fixed
Two rail end flaps (20) are connected with, two door covers (8) flap (21), two are fixed with the door cover (8)
Individual door cover (8) flap (21) is one-to-one with two rail end flaps (20) to be hinged, and is connected between two pin joints
Spring shaft, is cased with door cover (8) and opens secondary spring (19) on spring shaft.
7. the latent device of underwater sightseeing according to claim 6, it is characterised in that：On the door cover (8) flap (21) also
It is fixed with door cover (8) flap and positions tail (27), door cover (8) is fixed with rail end flap (20) and opens spacing
Block (12), the door cover (8) opens limited block (12) on the movement locus of door cover flap positioning tail (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510296051.8A CN104859819B (en) | 2015-06-02 | 2015-06-02 | Underwater hiding-machine hatch door and the latent device of the underwater sightseeing with the hatch door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510296051.8A CN104859819B (en) | 2015-06-02 | 2015-06-02 | Underwater hiding-machine hatch door and the latent device of the underwater sightseeing with the hatch door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104859819A CN104859819A (en) | 2015-08-26 |
| CN104859819B true CN104859819B (en) | 2017-06-09 |
Family
ID=53906100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510296051.8A Active CN104859819B (en) | 2015-06-02 | 2015-06-02 | Underwater hiding-machine hatch door and the latent device of the underwater sightseeing with the hatch door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104859819B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2653651C2 (en) * | 2016-05-25 | 2018-05-11 | Федеральное государственное казенное военное образовательное учреждение высшего образования "Военный учебно-научный центр Военно-Морского Флота "Военно-морская академия имени Адмирала флота Советского Союза Н.Г. Кузнецова" | Hatch of underwater technical equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4273064A (en) * | 1979-02-01 | 1981-06-16 | Sutton Robert W | Hatch cover |
| US7427089B2 (en) * | 2005-08-01 | 2008-09-23 | American Railcar Industries, Inc. | Apparatus and method for securing a hatch cover to a hatch port |
| CN201472626U (en) * | 2009-07-15 | 2010-05-19 | 江阴市船舶设备制造有限公司 | Marine sealing structure of pressure-resistant doors and covers |
| CN201834177U (en) * | 2010-08-26 | 2011-05-18 | 无锡市东舟船舶附件有限公司 | A60-class quick opening and closing fire-proof and watertight hatch cover |
| CN203439230U (en) * | 2013-07-04 | 2014-02-19 | 江门市南洋船舶工程有限公司 | Small marine hatch cover for engine room object lifting opening |
| CN204688388U (en) * | 2015-06-02 | 2015-10-07 | 烟台宏远氧业有限公司 | Underwater hiding-machine hatch door and the underwater sightseeing with this hatch door are dived device |
-
2015
- 2015-06-02 CN CN201510296051.8A patent/CN104859819B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104859819A (en) | 2015-08-26 |
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Address after: No.6 cheshan Road, Wolong Industrial Park, Zhifu District, Yantai City, Shandong Province Patentee after: YANTAI HONGYUAN OXYGEN INDUSTRIAL Inc. Address before: No.6 cheshan Road, Wolong Industrial Park, Zhifu District, Yantai City, Shandong Province Patentee before: YANTAI HONGYUAN OXYGEN INDUSTRIAL Co.,Ltd. |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Sun Maoxu Inventor after: Zhang Yu Inventor after: Chai Bo Inventor before: Sun Maoxu Inventor before: Zhang Yu Inventor before: Cai Bo |