CN211621526U - Inclined plane formula ship reception chamber transportation system - Google Patents
Inclined plane formula ship reception chamber transportation system Download PDFInfo
- Publication number
- CN211621526U CN211621526U CN201921383744.0U CN201921383744U CN211621526U CN 211621526 U CN211621526 U CN 211621526U CN 201921383744 U CN201921383744 U CN 201921383744U CN 211621526 U CN211621526 U CN 211621526U
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- ship
- inclined plane
- ship reception
- reception chamber
- hoisting
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Abstract
The utility model discloses an inclined plane formula ship reception chamber transportation system, including the transportation district that is located between the upper lock head in the upper reaches and the lower lock head in the low reaches, the inclined plane is built and the tiling is established to the ground in this transportation district and inclined plane track is settled, is provided with actuating mechanism and the drive mechanism that drives the ship reception chamber and move along the inclined plane on the inclined plane track, and ship reception chamber bottom connects downwards has a ship reception chamber frame, and the bottom surface of ship reception chamber frame is the inclined plane unanimous with the transportation district inclined plane, and the rail wheel of the installation of ship reception chamber frame bottom cooperates with the inclined plane track to assemble, and the top surface of ship reception chamber frame is the plane, is connected with ship reception chamber bottom; the utility model discloses a set up fixing device and increased the stability of boats and ships in the ship reception railway carriage or compartment, when boats and ships produced the displacement in the ship reception railway carriage or compartment, the sensor can send out the police dispatch newspaper to control panel through the PLC controller, and it stops the ship reception railway carriage or compartment to signal the staff, and inspection fixing device treats that the police dispatch newspaper removes the back, and the ship reception railway carriage or compartment functions once more, has increased the factor of safety of ship reception railway carriage or compartment.
Description
Technical Field
The utility model belongs to navigation building field among the hydraulic and hydroelectric engineering, concretely relates to inclined plane formula ship reception railway carriage or compartment conveying system.
Background
The ship lift is a common navigation building, also called as "ship lift", and its principle is that it utilizes a mechanical device to lift the passing ship so as to overcome the concentrated water level drop on the navigation channel. The ship lift saves water or consumes little water compared with a ship lock, and plays a great role in rivers with little water or artificial canals.
The ship lift is generally divided into a vertical type ship lift and an inclined plane type ship lift, compared with the vertical ship lift, the inclined plane ship lift is easy to manage and maintain, and the complex technical problem and the operation problem caused by high-altitude buildings are avoided; but the ship is inconvenient to load and unload in the ship reception chamber on the traditional inclined ship lift, and when the inclined ship lift runs at a variable speed, the stability of the ship in the ship reception chamber can be influenced, some potential safety hazards are brought, when the ship deviates in a small range, the optimal adjustment time is wasted due to inaccurate manual detection, and economic loss and casualties of operators are finally caused.
SUMMERY OF THE UTILITY MODEL
To defect and problem that current ship reception railway carriage or compartment exists, the utility model provides an inclined plane formula ship reception railway carriage or compartment conveyor system can realize automatic loading and unloading boats and ships to can make hull and conveyer bottom plate adsorb fixedly, increase the stability of boats and ships in ship reception railway carriage or compartment, set up the position that monitoring device can real time monitoring boats and ships on conveyer.
The utility model provides a scheme that its technical problem adopted is: an inclined plane type ship carrying compartment transportation system comprises a transportation area located between an upstream upper lock head and a downstream lower lock head, wherein an inclined plane is built on the ground of the transportation area and is tiled with an inclined plane track, a ship carrying compartment is arranged on the inclined plane track and is provided with a driving mechanism and a transmission mechanism for driving the ship carrying compartment to move along the inclined plane, the bottom of the ship carrying compartment is downwards connected with a ship carrying compartment frame, the bottom surface of the ship carrying compartment frame is an inclined plane and is consistent with the inclined plane of the transportation area, a track wheel arranged at the bottom of the ship carrying compartment frame is matched and assembled with the inclined plane track, and the top surface of the ship carrying compartment frame is a plane and is connected with the; vertical columns are vertically fixed at four vertex angles at the upper side of the ship receiving chamber, rotary hoisting devices are fixedly installed at the upper ends of the vertical columns, each rotary hoisting device comprises a rotary mechanism, a telescopic boom, a lifting rope and a lifting hook are arranged on each rotary mechanism, the lifting hooks of a pair of rotary hoisting devices at the front end of the ship receiving chamber hoist two side hoisting positions of a ship at the same time, the ship moves from an upstream water level to the ship receiving chamber, the lifting hooks of a pair of rotary hoisting devices at the rear end of the ship receiving chamber hoist two side hoisting positions of the ship at the same time, and the ship moves from the ship receiving chamber to a downstream water level; the inner sides of the left side wall and the right side wall of the ship reception chamber are respectively and vertically provided with a slide rail, each slide rail on each side is simultaneously provided with a horizontal slide bar and a mechanism for driving the horizontal slide bars to ascend and descend, and the horizontal slide bars are uniformly distributed with sensors for monitoring the distance between the sides of the ship.
The middle part in the ship receiving chamber is divided into a parking area, the parking area is uniformly divided into a plurality of ship parking positions, two grooves are longitudinally symmetrically formed in the middle parts of the ship parking positions, a groove is formed between every two adjacent ship parking positions, a plurality of sucker fixing devices are uniformly and fixedly arranged in the grooves, and when a ship is parked on the ship parking positions, the sucker fixing devices on the ship parking positions can be adsorbed at the bottoms of the ship to fix the ship.
The upper end of the sucker fixing device in the groove protrudes out of the groove.
The rotary hoisting device and the sensor are connected with a control panel arranged on the ship reception chamber through a PLC controller to form a transportation monitoring device of the ship body.
The parking area is arranged among the rotary hoisting devices at four top corners of the ship reception chamber, and the extension limit length of the telescopic boom on the rotary hoisting device is not less than the length of the parking area.
The length of the slider is the same as the length of the parking area.
The telescopic column is always in an outward extending state, and when a ship is parked in the ship receiving chamber, the bottom of the ship enables the telescopic column to be retracted towards the inside of the groove through extruding the lower fixing shell of the sucking disc.
The utility model has the advantages that:
the utility model provides an inclined plane formula ship reception chamber transportation system has set up hoisting accessory, sensor in the ship reception chamber to control panel through PCL controller and ship reception chamber is connected and is constituted the transportation monitoring device of boats and ships, sets up ship reception monitoring device through setting up on the ship reception chamber, can real time monitoring the parking condition of boats and ships, can prevent and adjust unstable conditions such as skew take place in the boats and ships transportation process; be equipped with sucking disc fixing device on the region of parking of ship reception railway carriage or compartment bottom, after hoisting accessory parkked boats and ships on the position of stopping, the sucking disc fixing device on the position of stopping can adsorb and fix boats and ships in the boats and ships bottom, increases the stability of boats and ships in the transportation.
The utility model provides an inclined plane formula ship reception chamber transportation system parks boats and ships conveniently, has increased the stability of boats and ships in ship reception chamber through setting up fixing device, and when boats and ships produced the displacement in ship reception chamber, the sensor can send out the police dispatch newspaper to control panel through the PLC controller, and the signal staff stops ship reception chamber, and inspection fixing device treats that the police dispatch newspaper is relieved after, and ship reception chamber functions once more, has increased ship reception chamber's factor of safety.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Fig. 2 is the structure schematic diagram of the transportation monitoring device of the present invention.
Fig. 3 is one of the top-view structural diagrams of the ship compartment of the present invention.
FIG. 4 is a schematic view of the boarding process of the present invention
Fig. 5 is a simple schematic diagram of the limit position of the telescopic boom of the present invention.
Fig. 6 is a schematic view of the control door panel of the present invention.
Fig. 7 is a schematic structural view of the fixing device of the present invention.
Fig. 8 is a schematic view of the ship-stopping mode of the present invention.
Fig. 9 is a second schematic top view of the ship compartment of the present invention.
Fig. 10 is a schematic view of the pressing structure of fig. 7.
Reference numbers in the figures: the device comprises a ship bearing box 1, a fixed upright post 2, a hanger main body 3, a hydraulic telescopic boom 4, a lifting rope 5, a ship 6, an upper lock head 7, a lower lock head 8, a carriage frame 9, a lifting hook 10, a sliding rail 11, a horizontal sliding rod 12, a sensor 13, a limit block 14, a support spring 15, a support shell 16, a retaining ring 18, a suction cup 19, a rotary lifting device a, a rotary lifting device b21, a rotary lifting device c 23, a rotary lifting device d 24, a sealing ring 25, a fixed column 26, a lifting column 27, an exhaust passage 28, an exhaust hole 29, a track wheel 30, an inclined plane track 31, a turntable 32, a groove 33, a suction cup fixing device 34 and a transportation central line 35.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1
A ramp transportation system for the up-and-down-stream transport of ships, as shown in fig. 1, comprises a ship reception chamber as shown in fig. 2 and 3. Referring to fig. 1, the ship reception chamber is located in a transportation area between the upstream upper lock head 7 and the downstream lower lock head 8, the transportation area is formed by building an inclined plane on the upper surface of the dam and laying an inclined plane track 31, and the heights of the upstream upper lock head 7 and the downstream lower lock head 8 are higher than the transportation area.
The inclined plane track 31 is provided with a carriage carrying frame 9, the bottom surface of the carriage carrying frame 9 is an inclined plane consistent with the inclined plane of the transportation area, and the bottom of the carriage carrying frame 9 is provided with track wheels 30 which are matched and assembled with the inclined plane track 31. The top or bottom of the inclined track 31 is provided with a guide wheel, such as a guide rope wheel, a traction steel cable is sleeved around the upper and lower guide rope wheels, a winch for driving the steel cable to operate is arranged, and the steel cable is fixedly connected with the bottom (between the tracks on two sides) of the carriage frame 9. When the winch rotates, the carriage frame 9 can be dragged to ascend and descend along the inclined plane track 31 through the steel cable.
The top surface of the carriage frame 9 is a plane, and the top of the carriage frame 9 is longitudinally and fixedly connected with a ship-carrying chamber 1 as shown in fig. 2.
As shown in fig. 2 and 3, fixed columns 2 are vertically fixed at four top corners of the upper side of the ship reception chamber 1, and rotary hoisting devices are fixedly installed at the upper ends of the fixed columns 2. The rotary hoisting device can adopt the rotary hoisting device for the current crane, the current rotary hoisting device is not described in detail, but in the embodiment, the rotary hoisting device which can also be adopted comprises a slewing mechanism which comprises a slewing table 32 arranged at the upper end of the upright post, and the slewing table 32 can be driven to rotate by a slewing driving mechanism according to the control requirement, wherein the slewing driving mechanism comprises a slewing motor and a corresponding gearbox. The rotary table is provided with a hanger body 3. Wherein, the hanger main body also adopts the existing crane hanger. For example, a hydraulic telescopic boom 4 shown in fig. 1 is adopted, the end of the hydraulic telescopic boom 4 is provided with a pulley block mechanism, the pulley block mechanism comprises a fixed pulley rotatably arranged at the upper end of a lifting arm, the fixed pulley is connected with a movable pulley through a lifting rope 5, a lifting hook 10 is fixedly arranged on the movable pulley, an electric winch is arranged on the hanger main body 3, the electric winch is controlled to pull the telescopic lifting rope, and the lifting hook is driven to vertically move through the rotation of the fixed pulley block and the movable pulley block.
When the ship 6 is lifted, the rotary lifting devices at two vertex angles at the front end (or the rear end) of the ship receiving chamber 1 need to simultaneously lift the lifting positions (at least four symmetrical points at two sides) symmetrically arranged at two sides of one ship 6, so that the ship can move more stably in the air.
For example, when the ship 6 is to be hoisted at the upstream, the hooks 10 of the pair of rotating hoisting devices located at the front end of the ship reception chamber 1 hoist both sides of the ship simultaneously, and move the ship 6 from the upstream water level into the ship reception chamber 1, and the hooks 10 of the pair of rotating hoisting devices located at the rear end of the ship reception chamber 1 hoist both sides of the ship 6 simultaneously, and move the ship 6 from the ship reception chamber 1 to the downstream water level.
As shown in fig. 2, ship bearing monitoring devices are arranged on the inner walls of the left side and the right side of the ship bearing chamber 1, each ship bearing monitoring device comprises a vertical slide rail group and a horizontal slide bar 12, each slide rail group comprises two slide rails 11 fixed on the inner wall of the ship bearing chamber 1 at intervals, electric slide blocks are arranged in the middle of the left end and the right end of each horizontal slide bar 12, the electric slide blocks are correspondingly embedded in the slide rails 11 and can slide up and down along the slide rails 11 synchronously, and sensors 13 for monitoring the distance between the sides of a ship are uniformly distributed on the horizontal slide bars 12.
The upper end and the lower end of the slide rail 11 are symmetrically provided with limiting blocks 14, and the upper limit is the limiting block 14 to prevent the electric slide block from sliding out of the slide rail 11; the height of the limit block 14 is a, and the height of the horizontal sliding rod 12 is b, wherein a > Ty b, so that the sensor 13 on the horizontal sliding rod 12 is prevented from being damaged when the horizontal sliding rod 12 collides with the bottom of the ship compartment 1 when the electric slider drives the horizontal sliding rod 12 to move downwards along the sliding rail 11.
As shown in fig. 3 and 5, a parking area is arranged at the bottom of the ship reception chamber 1 between the rotary hoisting devices at four corners, and the length of the horizontal sliding rod is the same as that of the parking area, so that the monitoring range of the sensor 13 on the horizontal sliding rod covers the whole parking area, and high-precision monitoring is realized; the parking area is evenly divided into 4 ship parking positions, the extension limit length of the hydraulic telescopic suspension arm 4 on the rotary lifting device is not less than the length of the parking area, and the rotary lifting device can lift a ship to any ship parking position.
The slewing mechanism of the rotary hoisting device, the hydraulic mechanism of the hydraulic telescopic boom 4, the electric winch, the electric slide block of the ship bearing monitoring device and the sensor 13 are connected with a control panel arranged on the ship bearing direction through a PLC controller to form the ship body transportation monitoring device.
As shown in fig. 4 and 8, when a single ship 6 is needed to be lifted and placed in the ship-carrying compartment 1 outside the upper lock head 7, firstly, the rotary lifting device a20 and the rotary lifting device b21 at two top corners of the front end of the ship-carrying compartment 1 are controlled to make the tail ends of the hydraulic telescopic booms 4 respectively rotate and extend to the positions above the lifting positions corresponding to the ship 6, the length of the lifting rope 5 is controlled by rotating the pulley mechanism of the lifting device, so that the lifting hooks 10 on the rotary lifting device a20 and the rotary lifting device b21 are respectively and correspondingly fixed on the lifting positions of the ship, then the single ship mode on the control panel is selected, then the loading on the control panel is selected to be started, the PLC controller firstly synchronously controls the swing mechanisms on the lifting device a20 and the rotary lifting device b21 to collect the lifting rope 5, so that the ship 6 stably rises to the safe height, the PLC controller controls the operation of the swing mechanisms and the hydraulic telescopic booms 4 of the lifting device a20 and the rotary lifting device b21, when the rotary lifting body 3 on the rotary lifting device a20 rotates clockwise on the rotary table 32 and simultaneously the rotary lifting body 3 on the rotary lifting device b21 rotates anticlockwise on the rotary table 32, the lifting device a20 and the hydraulic telescopic boom 4 on the rotary lifting device b21 also contract synchronously while the rotary lifting body 3 rotates, and in the process, the ship 6 moves along the transportation center line 35 and above the middle part of the horizontal longitudinal ship compartment 1.
When the ship 6 moves to the position B, the rotary lifting device a20 and the rotary lifting device B21 on the rotary lifting body 3 continue to rotate, at this time, the lifting device a20 and the hydraulic telescopic boom 4 on the rotary lifting device B21 stop contracting movement and change into extending movement, and at this time, the ship continues to move horizontally and longitudinally to the middle and upper part of the carriage 1.
When the ship 6 moves to the position C, the PLC controller stops controlling the swing mechanisms and the hydraulic telescopic booms on the rotating hoisting device a20 and the rotating hoisting device b21, and synchronously controls the pulley mechanisms on the rotating hoisting device a20 and the rotating hoisting device b21, so that the ship 6 is stably lowered into the parking area in the middle of the ship-riding compartment 1.
After the ship 6 is lifted, the winch at the top of the inclined rail 31 is started, and the carriage frame 9 moves downwards along the inclined rail 30 along the brake head at the rope releasing speed of the winch.
If the ship 6 in the ship carrying chamber 1 is displaced during transportation, the sensor 12 in the ship carrying chamber 1 sends an alarm to the control panel through the PLC controller, a worker stops suspending the winch to stop moving the carriage frame 9, the ship 6 in the ship carrying chamber 1 is checked, and after the alarm is released, the winch is started to continue moving the carriage frame 9.
Example 2
As shown in fig. 5 and 8, when the ship 6 needs to be parked at another ship parking position in the ship reception chamber 1 during hoisting from upstream, the PLC controller changes the contraction or extension speed of the hydraulic telescopic arm 4 of the rotary hoisting device at the two vertex angles respectively without changing the rotation speed of the rotary hoisting device at the two vertex angles at the front end of the ship reception chamber, so that the ship 6 can be parked at the designated ship parking position stably.
Example 3
As shown in fig. 9, a parking area is divided in the middle of the ship reception chamber, the parking area is uniformly divided into a plurality of ship parking positions, two grooves are longitudinally symmetrically formed in the middle of each ship parking position, a groove 33 is also formed between every two adjacent ship parking positions, and a plurality of sucker fixing devices 34 are uniformly arranged in the grooves.
As shown in fig. 7, the suction cup fixing device 34 includes a fixing column 26 having a lifting groove at an upper section of a middle portion thereof, a retaining ring 18 is fixed to an upper end surface of the fixing column 26 by a bolt, a lifting column 27 is sleeved in the lifting groove, a bottom of the lifting column 27 is fixedly connected to a bottom of the lifting groove by a support spring 15, the retaining ring 18 prevents the lifting column 27 from being ejected out of the lifting groove by the support spring 15, a hemispherical support shell 16 having an outward opening is fixedly disposed on an upper end of the lifting column 27, a sealing ring 25 is disposed between the retaining ring 18 and the lifting column 27, an L-shaped air suction passage 28 penetrating through the support shell 16 and a circumferential side surface of the lifting column is formed at the middle portion of the lifting column 27 outside the lifting groove, a suction cup 17 is sealingly fixed in the support shell 16, an upper end surface of the suction cup 19 extends outward and covers the upper end surface of the support shell 16, an air suction hole is formed at the middle portion of the suction cup 17 and is communicated, an air suction hole 29 penetrating through a lifting groove is axially formed in the circumferential side wall of the upper end of the fixed column 26, the air suction hole 29 is connected with an air suction pump through an air suction pipe, and the lifting groove is always kept in a negative pressure state.
The sucking disc fixing device is vertically fixed at the bottom of the groove 33, the supporting shell 16 and the sucking disc 19 at the upper end of the sucking disc fixing device protrude out of the groove 33, the length of the protruding groove 33 at the upper end face of the sucking disc 19 is a, the vertical distance between an air suction channel opening on the circumferential side face of the lifting column of the sucking disc fixing device in a non-extrusion state and the air suction hole 29 on the fixing column is b, and a is b.
As shown in fig. 10, after the ship is parked on the ship parking position by rotating the lifting device, the bottom of the ship 6 extrudes the suction cup fixing device protruding out of the groove 33 into the groove, at this time, the suction cup 19 is in close contact with the bottom of the ship 6, the air exhaust passage opening measured on the circumference of the lifting column 27 is extruded into the lifting groove, at this time, the suction cup is communicated with the lifting groove through the air exhaust passage 18, the suction cup and the bottom of the ship body are enabled to achieve negative pressure through continuous air exhaust of the air exhaust pump, the suction cup is fixed at the bottom of the ship 6, and at this time, the suction cup fixing device on the ship parking position is adsorbed at the bottom of the ship 6, so that.
Claims (6)
1. An inclined plane type ship carrying compartment transportation system comprises a transportation area located between an upstream upper lock head and a downstream lower lock head, wherein an inclined plane is built on the ground of the transportation area and is tiled with an inclined plane track, a ship carrying compartment is arranged on the inclined plane track and is provided with a driving mechanism and a transmission mechanism for driving the ship carrying compartment to move along the inclined plane, the inclined plane type ship carrying compartment transportation system is characterized in that a ship carrying compartment frame is connected to the bottom of the ship carrying compartment downwards, the bottom surface of the ship carrying compartment frame is an inclined plane and is consistent with the inclined plane of the transportation area, a track wheel mounted at the bottom of the ship carrying compartment frame is matched and assembled with the inclined plane track, and the top surface of the ship carrying compartment frame; vertical columns are vertically fixed at four top corner positions of the upper side of the ship receiving chamber, rotary hoisting devices are fixedly installed at the upper ends of the vertical columns, each rotary hoisting device comprises a swing mechanism, a telescopic boom, a hoisting rope and a hoisting hook are arranged on the swing mechanism, the hoisting hooks of a pair of rotary hoisting devices positioned at the front end of the ship receiving chamber hoist two side hoisting positions of a ship at the same time, the ship moves from an upstream water level to the ship receiving chamber, the hoisting hooks of a pair of rotary hoisting devices positioned at the rear end of the ship receiving chamber hoist two side hoisting positions of the ship at the same time, and the ship moves from the ship receiving chamber to a downstream water level; the inner sides of the left side wall and the right side wall of the ship reception chamber are respectively and vertically provided with a slide rail, each slide rail on each side is simultaneously provided with a horizontal slide bar and a mechanism for driving the horizontal slide bars to lift, and the horizontal slide bars are uniformly distributed with sensors for monitoring the distance between the sides of ships.
2. The bevel type ship reception chamber transportation system according to claim 1, wherein a parking area is defined in the middle of the ship reception chamber, the parking area is uniformly divided into a plurality of ship parking positions, two grooves are longitudinally symmetrically formed in the middle of each ship parking position, a groove is also formed between every two adjacent ship parking positions, a plurality of suction cup fixing devices are uniformly and fixedly arranged in the grooves, and when a ship is parked on the ship parking positions, the suction cup fixing devices on the ship parking positions are sucked to the bottom of the ship to fix the ship.
3. The ramp type ship reception chamber transportation system according to claim 2, wherein the suction cup fixing means in the groove protrudes from the groove at an upper end thereof.
4. The ramp type ship reception chamber transportation system according to claim 1, wherein the rotation lifting device and the sensor are connected with a control panel provided on the ship reception chamber through a PLC controller to constitute a transportation monitoring device of the ship body.
5. The ramp type ship reception chamber transportation system according to claim 2, wherein the parking area is provided between the rotary lifting devices at four top corners of the ship reception chamber, and the extension limit length of the telescopic boom on the rotary lifting devices is not less than the length of the parking area.
6. The ramp type ship receiving box transport system according to claim 1 or 2, wherein the length of the slider is the same as the length of the parking area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921383744.0U CN211621526U (en) | 2019-08-24 | 2019-08-24 | Inclined plane formula ship reception chamber transportation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921383744.0U CN211621526U (en) | 2019-08-24 | 2019-08-24 | Inclined plane formula ship reception chamber transportation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211621526U true CN211621526U (en) | 2020-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921383744.0U Expired - Fee Related CN211621526U (en) | 2019-08-24 | 2019-08-24 | Inclined plane formula ship reception chamber transportation system |
Country Status (1)
| Country | Link |
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| CN (1) | CN211621526U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110387864A (en) * | 2019-08-24 | 2019-10-29 | 华北水利水电大学 | A kind of ship reception chamber inclined-plane transportation system |
| CN116692697A (en) * | 2023-08-08 | 2023-09-05 | 日照恒远船舶工程有限公司 | Hoisting device for ship maintenance |
-
2019
- 2019-08-24 CN CN201921383744.0U patent/CN211621526U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110387864A (en) * | 2019-08-24 | 2019-10-29 | 华北水利水电大学 | A kind of ship reception chamber inclined-plane transportation system |
| CN116692697A (en) * | 2023-08-08 | 2023-09-05 | 日照恒远船舶工程有限公司 | Hoisting device for ship maintenance |
| CN116692697B (en) * | 2023-08-08 | 2024-01-26 | 日照恒远船舶工程有限公司 | Hoisting device for ship maintenance |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20201002 Termination date: 20210824 |