CN111412205B - Band-type brake mechanism for removable saddle of deep sea carrying platform - Google Patents
Band-type brake mechanism for removable saddle of deep sea carrying platform Download PDFInfo
- Publication number
- CN111412205B CN111412205B CN202010265786.5A CN202010265786A CN111412205B CN 111412205 B CN111412205 B CN 111412205B CN 202010265786 A CN202010265786 A CN 202010265786A CN 111412205 B CN111412205 B CN 111412205B
- Authority
- CN
- China
- Prior art keywords
- saddle
- band
- plate
- brake mechanism
- carrying platform
- 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.)
- Active
Links
- 230000000712 assembly Effects 0.000 claims abstract description 10
- 238000000429 assembly Methods 0.000 claims abstract description 10
- 230000007797 corrosion Effects 0.000 claims description 14
- 238000005260 corrosion Methods 0.000 claims description 14
- 239000013535 sea water Substances 0.000 claims description 14
- 239000007769 metal material Substances 0.000 claims description 10
- 239000003381 stabilizer Substances 0.000 claims description 5
- 229920001971 elastomer Polymers 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 230000009189 diving Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2/00—Friction-grip releasable fastenings
- F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
- F16B2/06—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
- F16B2/08—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using bands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/52—Tools specially adapted for working underwater, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
- B63G8/001—Underwater vessels adapted for special purposes, e.g. unmanned underwater vessels; Equipment specially adapted therefor, e.g. docking stations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
- B63G8/001—Underwater vessels adapted for special purposes, e.g. unmanned underwater vessels; Equipment specially adapted therefor, e.g. docking stations
- B63G2008/002—Underwater vessels adapted for special purposes, e.g. unmanned underwater vessels; Equipment specially adapted therefor, e.g. docking stations unmanned
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ocean & Marine Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Clamps And Clips (AREA)
- Springs (AREA)
Abstract
The invention relates to a band-type brake mechanism for a detachable saddle of a deep sea carrying platform, which comprises a saddle, wherein a pressure-resistant shell is arranged at the bottom of the saddle, plate strips are symmetrically arranged on two sides of the outer circumferential surface of the pressure-resistant shell, the tops of the two plate strips are respectively hinged on the saddle, the bottoms of the two plate strips are connected through an elastic connecting component, a stop block is further arranged in the middle position of the bottom of the pressure-resistant shell, and the elastic connecting component is connected with the stop block; the two ends of the saddle are respectively hinged with a guide block, the outer side of the upper part of the plate belt is hinged with a guide rod, a guide groove is formed in the guide rod, and the guide blocks freely slide in the guide groove; brake block assemblies are uniformly distributed on the inner side of the plate strip at intervals, one end of each brake block assembly is hinged to the inner side of the plate strip, and the other end of each brake block assembly is tightly abutted to the outer circumferential surface of the pressure-resistant shell. The work is stable and reliable.
Description
Technical Field
The invention relates to the technical field of ocean carrying platforms and deep diving equipment, in particular to a band-type brake mechanism for a detachable saddle of a deep-sea carrying platform.
Background
The deep sea carrying platform (or non-self-propelled deep diving structure) is an important means for current ocean development and research, and carries different task modules according to different operation tasks, so that a detachable saddle with a specific interface is required to be mounted on a pressure hull, and an operation system or equipment is carried on the saddle.
In order to fix the saddle structure, the semi-annular bottom hoop and the saddle at the upper part are used for forming a holding, and the bottom hoop and the detachable saddle are connected through bolts in a pre-tightening mode. The structure is simple, the installation is convenient, the cost is low, but under the great diving depth, the pressure-resistant shell of the deep sea carrying platform generates radial shrinkage deformation under the action of hydrostatic load, at the moment, the bottom-pocket hoop integrally translates along the tightening direction under the action of bolt pre-tightening force, theoretically, the bottom-pocket hoop only contacts with the local area of the highest point and the lowest point of the pressure-resistant shell, gaps can appear in other large areas to cause saddle loosening, and the underwater operation is easily adversely affected.
Disclosure of Invention
The applicant aims at the defects in the prior art and provides a band-type brake mechanism for a removable saddle of a deep sea carrying platform, so that the band-type brake mechanism with different diving depths can be used for realizing uniform self-adaptive tightening of the circumferential direction of a pressure shell by utilizing a pair of plate belt structures with a plurality of brake block assemblies and an elastic connecting assembly at the end part, and the saddle cannot be loosened.
The technical scheme adopted by the invention is as follows:
a band-type brake mechanism for a detachable saddle of a deep sea carrying platform comprises a saddle, wherein a pressure-resistant shell is arranged at the bottom of the saddle, plate strips are symmetrically arranged on two sides of the outer circumferential surface of the pressure-resistant shell, the tops of the two plate strips are respectively hinged to the saddle, the bottoms of the two plate strips are connected through an elastic connecting component, a stop block is further arranged in the middle of the bottom of the pressure-resistant shell, and the elastic connecting component is connected with the stop block;
the two ends of the saddle are respectively hinged with a guide block, the outer side of the upper part of the plate belt is hinged with a guide rod, a guide groove is formed in the guide rod, and the guide blocks freely slide in the guide groove;
brake block assemblies are uniformly distributed on the inner side of the plate strip at intervals, one end of each brake block assembly is hinged to the inner side of the plate strip, and the other end of each brake block assembly is tightly abutted to the outer circumferential surface of the pressure-resistant shell.
The further technical scheme is as follows:
the structure of a single brake block assembly is as follows: the plate spring is of a circular arc-shaped structure, the top of the outer side of the plate spring is hinged to the plate belt, supporting legs are fixed to the inner side positions of two end heads of the plate spring respectively, the supporting legs are flat and triangular, elastic cushion blocks are fixed to two sides of the bottom of each supporting leg respectively, and the elastic cushion blocks are abutted to the outer circumferential surface of the pressure-resistant shell.
The supporting legs are made of metal materials resistant to seawater corrosion.
The elastic cushion block is made of seawater corrosion resistant rubber or polyurethane material.
The structure of the elastic connecting assembly is as follows: the novel plate strip screw assembly is characterized by comprising a horizontally arranged screw rod, nuts are respectively installed at two ends of the screw rod in a matched mode, the outer circumferential surfaces of the two nuts are respectively hinged to the plate strip, a spiral spring is further installed in the middle of the screw rod, and the top of the spiral spring is fixed to a stop block.
Five groups of brake block assemblies are uniformly distributed on the inner side of a single plate strip at intervals.
The plate belt is of a circular arc narrow-band structure.
The plate strip is made of a metal material resistant to seawater corrosion.
The invention has the following beneficial effects:
the pressure-resistant shell self-adaptive clamping device is compact and reasonable in structure and convenient to operate, self-adaptive clamping under different submergence depths of the pressure-resistant shell can be conveniently realized through the matching work of the plate belt, the brake block assembly and the elastic connecting piece assembly, the load is uniform, the overload failure of a local joint part can be effectively prevented, and the safety and reliability of large submergence depth operation of a deep sea carrying platform are greatly improved.
The invention has convenient installation, meets the requirement of rapidity of saddle modularization replacement, can disassemble and repair a single brake block assembly, maintains the brake block assembly and replaces spare parts, and has better maintainability.
The invention can be widely applied to the fixed installation of the detachable saddle structure of the deep sea carrying platform (or the non-self-propelled deep diving structure).
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic structural diagram of the brake shoe assembly of the present invention.
Fig. 3 is a schematic structural view of the elastic connecting component of the present invention.
Wherein: 1. plate and strip; 2. a guide bar; 3. a guide block; 4. a gate block assembly; 5. an elastic connection assembly; 6. a plate spring; 7. a support leg; 8. an elastic cushion block; 9. a nut; 10. a lead screw; 11. a pressure-resistant housing; 12. a saddle; 13. a stopper; 14. a coil spring.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1, 2 and 3, the band-type brake mechanism for the detachable saddle of the deep sea carrying platform of the embodiment includes a saddle 12, a pressure-resistant shell 11 is arranged at the bottom of the saddle 12, plate strips 1 are symmetrically arranged on two sides of the outer circumferential surface of the pressure-resistant shell 11, the tops of the two plate strips 1 are respectively hinged on the saddle 12, the bottoms of the two plate strips 1 are connected through an elastic connection assembly 5, a stopper 13 is further arranged in the middle position of the bottom of the pressure-resistant shell 11, and the elastic connection assembly 5 is connected with the stopper 13;
the two ends of the saddle 12 are respectively hinged with a guide block 3, the outer side of the upper part of the plate strip 1 is hinged with a guide rod 2, the guide rod 2 is provided with a guide groove, and the guide blocks 3 freely slide in the guide groove;
The structure of the single brake block assembly 4 is as follows: the plate spring comprises a plate spring 6, wherein the plate spring 6 is of an arc-shaped structure, the top of the outer side of the plate spring 6 is hinged with a plate belt 1, supporting legs 7 are respectively fixed at the inner sides of two ends of the plate spring 6, the supporting legs 7 are flat and triangular, elastic cushion blocks 8 are respectively fixed on two sides of the bottom of each supporting leg 7, and the elastic cushion blocks 8 are mutually abutted with the outer circumferential surface of a pressure-resistant shell 11.
The supporting legs 7 are made of metal materials resistant to seawater corrosion.
The elastic cushion block 8 is made of seawater corrosion resistant rubber or polyurethane material.
The structure of the elastic connecting component 5 is as follows: the novel plate strip bending machine comprises a horizontally arranged lead screw 10, nuts 9 are respectively installed at two ends of the lead screw 10 in a matched mode, the outer circumferential surfaces of the two nuts 9 are respectively hinged with a plate strip 1, a spiral spring 14 is further installed in the middle of the lead screw 10, and the top of the spiral spring 14 is fixed with a stop block 13.
Five groups of brake block assemblies 4 are uniformly distributed on the inner side of the single plate belt 1 at intervals.
The plate belt 1 is of a circular arc narrow-band structure.
The plate strip 1 is made of a metal material resistant to seawater corrosion.
The specific structure and function of the invention are as follows:
the band-type brake mechanism mainly comprises plate strips 1 which are symmetrically arranged on two sides of a pressure casing 11 and are provided with a plurality of brake block assemblies 4, and an elastic connecting assembly 5 arranged at the bottom of the pressure casing 11.
Wherein the plate strip 1 is of a circular arc narrow-band structure and is made of a seawater corrosion resistant metal material,
the top ends of the two strips 1 are hinged with A, B points of the saddle 12 respectively,
the bottom ends of the two plate belts 1 are respectively hinged with G, H points of the elastic connecting component 5.
In order to improve the connection strength of the plate strip 1 and the saddle 12 and improve the stability of the plate strip 1, guide rods 2 are respectively hinged at the E, F point of the plate strip 1, correspondingly, guide blocks 3 are respectively hinged at the C, D point of the saddle 12, and the guide blocks 3 can freely slide in the guide grooves of the guide rods 2.
The brake block components 4 are hinged at the inner side of the plate strip 1 and are uniformly arranged along the arc length direction of the plate strip 1.
Each brake block assembly 4 consists of a plate spring 6, a support leg 7 and an elastic cushion block 8,
the plate spring 6 is made of a metal material with high elasticity and seawater corrosion resistance, and the plate spring 6 is subjected to flat elastic pre-deformation under the extrusion of the elastic cushion block 8 during initial installation. The plate spring 6 is hinged with the plate belt 1 at a J point in the middle, and is hinged with the supporting legs 7 at K, L points at two ends. The stabilizer blade 7 is made by the metal material of resistant sea water corrosion, is flat triangle-shaped, and elastic cushion 8 is fixed respectively to the bottom both sides of stabilizer blade 7, and elastic cushion 8 is made by the rubber or the polyurethane material of resistant sea water corrosion, rotates and elastic cushion 8 receives extruded local deformation through the mechanism of pin joint J, K, L department on the leaf spring 6, can realize that four elastic cushion 8 on the ram block subassembly 4 are pasted tightly with the self-adaptation of withstand voltage casing 11, and load evenly distributed.
The elastic connecting component 5 consists of a nut 9, a lead screw 10 and a spiral spring 14, and is made of a seawater corrosion resistant metal material.
The two ends of the screw rod 10 are provided with transmission threads with opposite rotation directions, when the screw rod 10 rotates, the nuts 9 at the two ends of the screw rod 10 are driven to make reverse translation along the axis, and the nuts 9 and the end part of the plate strip 1 are respectively hinged at G, H points, so that the band-type brake mechanism is driven to generate tightening or loosening motion.
During initial installation, the screw rod 10 is rotationally pre-tightened by the spiral spring 14, so that the contracting brake mechanism is tightened. Bearing points at two ends of the spiral spring 14 are inserted into pin holes of the screw rod 10, and a bearing point at the middle part of the spiral spring 14 is limited by a stop block 13 structure fixed on the pressure-resistant shell 11.
In the submergence process of the deep sea carrying platform:
the pressure-resistant shell 11 generates radial contraction under the action of hydrostatic load, a gap is generated between the pressure-resistant shell 11 and the band-type brake mechanism, the spiral spring 14 is released to a certain degree and drives the screw rod 10 to rotate, the plate strips 1 on two sides are continuously tightened through the nuts 9, the elastic cushion blocks 8 on the brake block assemblies 4 are attached to and extruded with the pressure-resistant shell 11 again, and when the extrusion force is balanced with the spring force, the band-type brake mechanism achieves new static balance.
The deep sea carrying platform is in the floating process:
pressure casing 11 gradually expands radially and finally returns to the initial state. At the moment, the extrusion force borne by the elastic cushion block 8 is gradually increased, so that the plate strips 1 on the two sides are continuously expanded, the spiral spring 14 is continuously tensioned, and when the extrusion force is balanced with the spring force, the band-type brake mechanism achieves new static balance.
Therefore, when the depth of the deep sea carrying platform changes, the whole-course self-adaptive holding of the pressure shell 11 by the brake mechanism can be realized.
The above description is intended to be illustrative and not restrictive, and the scope of the invention is defined by the appended claims, which may be modified in any manner within the scope of the invention.
Claims (7)
1. The utility model provides a band-type brake mechanism that is used for removable saddle of deep sea delivery platform, includes saddle (12), the bottom of saddle (12) is provided with pressure shell (11), its characterized in that: the two sides of the outer circumferential surface of the pressure-resistant shell (11) are symmetrically provided with the plate strips (1), the tops of the two plate strips (1) are respectively hinged to the saddle (12), the bottoms of the two plate strips (1) are connected through an elastic connecting assembly (5), a stop block (13) is further arranged in the middle of the bottom of the pressure-resistant shell (11), and the elastic connecting assembly (5) is connected with the stop block (13);
the two ends of the saddle (12) are respectively hinged with a guide block (3), the outer side of the upper part of the plate strip (1) is hinged with a guide rod (2), a guide groove is formed in the guide rod (2), and the guide blocks (3) freely slide in the guide groove;
the brake block assemblies (4) are uniformly distributed on the inner side of the plate strip (1) at intervals, one end of each brake block assembly (4) is hinged to the inner side of the plate strip (1), and the other end of each brake block assembly is abutted against the outer circumferential surface of the pressure-resistant shell (11);
the structure of the elastic connecting component (5) is as follows: including lead screw (10) of horizontal setting, nut (9) are installed in the cooperation respectively at the both ends of lead screw (10), and the outer periphery of two nut (9) is articulated with slab band (1) respectively, coil spring (14) are still installed at the middle part of lead screw (10), the top and dog (13) of coil spring (14) are fixed.
2. A band-type brake mechanism for a removable saddle of a deep-sea carrying platform, as claimed in claim 1, wherein: the structure of the single brake block assembly (4) is as follows: including leaf spring (6), leaf spring (6) are convex structure, the outside top of leaf spring (6) is articulated with slab band (1), both ends head inboard position of leaf spring (6) is fixed with stabilizer blade (7) respectively, stabilizer blade (7) are flat triangle-shaped, and the bottom both sides of every stabilizer blade (7) are fixed with elastic cushion (8) respectively, elastic cushion (8) support tightly each other with the outer periphery of withstand voltage casing (11).
3. A band-type brake mechanism for a removable saddle of a deep-sea carrying platform, according to claim 2, wherein: the supporting legs (7) are made of metal materials resistant to seawater corrosion.
4. A band-type brake mechanism for a removable saddle of a deep-sea carrying platform, according to claim 2, wherein: the elastic cushion block (8) is made of seawater corrosion resistant rubber or polyurethane material.
5. A band-type brake mechanism for a removable saddle of a deep-sea carrying platform, as claimed in claim 1, wherein: five groups of brake block assemblies (4) are uniformly distributed on the inner side of the single plate strip (1) at intervals.
6. A band-type brake mechanism for a removable saddle of a deep-sea carrying platform, as claimed in claim 1, wherein: the plate belt (1) is of a circular arc narrow belt structure.
7. A band-type brake mechanism for a removable saddle of a deep-sea carrying platform, as claimed in claim 1, wherein: the plate strip (1) is made of a seawater corrosion resistant metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010265786.5A CN111412205B (en) | 2020-04-07 | 2020-04-07 | Band-type brake mechanism for removable saddle of deep sea carrying platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010265786.5A CN111412205B (en) | 2020-04-07 | 2020-04-07 | Band-type brake mechanism for removable saddle of deep sea carrying platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111412205A CN111412205A (en) | 2020-07-14 |
| CN111412205B true CN111412205B (en) | 2021-06-08 |
Family
ID=71489700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010265786.5A Active CN111412205B (en) | 2020-04-07 | 2020-04-07 | Band-type brake mechanism for removable saddle of deep sea carrying platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111412205B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8421027D0 (en) * | 1984-08-17 | 1984-09-19 | Conoco Inc | Clamps for pipelines |
| CN201744238U (en) * | 2010-08-04 | 2011-02-16 | 合肥利都自动化仪表有限公司 | Filter provided with quick opening and quick dismounting device |
| CN204916772U (en) * | 2015-03-27 | 2015-12-30 | 中冶天工上海十三冶建设有限公司 | A saddle support that is used for large -scale tower class container |
| CN107856826B (en) * | 2017-11-03 | 2019-05-31 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of automatic anchor ear device of the electrically driven tank of benthoscope |
| CN109794476B (en) * | 2019-03-27 | 2024-04-12 | 王星月 | Intelligent water service pipeline inner wall cleaning equipment and cleaning method |
-
2020
- 2020-04-07 CN CN202010265786.5A patent/CN111412205B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111412205A (en) | 2020-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4398487A (en) | Fairing for elongated elements | |
| US4363213A (en) | Combined body and power generating system | |
| CN110741122B (en) | Assembly comprising a first section and a second section and a holder | |
| JP2016514794A (en) | Wave energy converter | |
| US20030053868A1 (en) | Adjustable rigid riser connector | |
| JP6529574B2 (en) | Belt attachment and system | |
| CN111412205B (en) | Band-type brake mechanism for removable saddle of deep sea carrying platform | |
| US4494738A (en) | Shock-absorbing joint and assembly with rotating arms and elastomeric spring action | |
| AU2016233458A1 (en) | Hinge system for an articulated wave energy conversion system | |
| CN104729555A (en) | Device for remotely-operated vehicle (ROV) to quickly mount and replace sensor on deepwater platform anchor chain underwater | |
| CN210059853U (en) | Pneumatic double-acting full-stroke chuck | |
| CN201064881Y (en) | Clamping device for screwing up threads | |
| US3728748A (en) | Mooring apparatus | |
| CN115149489B (en) | Distributed buoyancy device and installation method thereof | |
| CN113247206B (en) | Safety fixing structure for manufacturing ship | |
| GB2053303A (en) | Elastic Tie Member | |
| CN212056105U (en) | Dynamic flexible pipe cable underwater floater | |
| KR102111984B1 (en) | Rudder carrier assembly for a ship and the ship having it | |
| CN111546044B (en) | A quick assembly disassembly device for taking flange limit hemisphere head | |
| CN111350932B (en) | Chain type bridle structure for detachable saddle of deep sea carrying platform | |
| CN107620291B (en) | Efficient composite fender | |
| CN109296630B (en) | Radial sliding bearing | |
| CN209870674U (en) | Mooring buffer part for ship | |
| CN115977663A (en) | Floating support device and shield tunneling machine | |
| CN220605511U (en) | Waterproof threading structure for aluminum alloy ship |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |