CN208792279U - A kind of cleaning ship waterborne - Google Patents

A kind of cleaning ship waterborne Download PDF

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Publication number
CN208792279U
CN208792279U CN201821107097.6U CN201821107097U CN208792279U CN 208792279 U CN208792279 U CN 208792279U CN 201821107097 U CN201821107097 U CN 201821107097U CN 208792279 U CN208792279 U CN 208792279U
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CN
China
Prior art keywords
support frame
hull
cleaning ship
crankshaft
link rod
Prior art date
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Expired - Fee Related
Application number
CN201821107097.6U
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Chinese (zh)
Inventor
颜建
韩伟
范汝健
杨国强
吴志鹏
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Guangzhou College of South China University of Technology
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Guangzhou College of South China University of Technology
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Filing date
Publication date
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Priority to CN201821107097.6U priority Critical patent/CN208792279U/en
Application granted granted Critical
Publication of CN208792279U publication Critical patent/CN208792279U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a kind of cleaning ship waterborne, including cleaning ship ontology, master control set and driving device, the master control set includes controller and the wireless communication module for receiving wireless control signal, driving device includes drum drive motor and propeller driving motor, and controller is electrically connected with wireless communication module, drum drive motor, propeller driving motor respectively;Cleaning ship ontology includes support frame, the first hull, the second hull, transmission net chain belt, collecting box and propeller, first hull is connected on the left side of support frame, second hull is connected on the right side of support frame, and collecting box is set on support frame, and the top of collecting box is equipped with opening;The front side bottom of support frame is equipped with the first roller frame, and support frame is equipped with second tin roller frame, and second tin roller frame is located above the edge of the opening of collecting box.The utility model optimizes the structure of cleaning ship waterborne, can adapt to the cleaning operation of the narrow water surface, and reduces costs.

Description

A kind of cleaning ship waterborne
Technical field
The utility model relates to technical field of automatic control, more particularly, to a kind of cleaning ship waterborne.
Background technique
Currently, the floating that the landscapes water surface such as municipal lake, river often has fallen leaves, polybag, dross etc. to fall into the water surface with the wind Object not only seriously affects waters landscape, while being also germ, harmful microbe breeding ground;In addition there are also breedings quickly Water plant such as duckweed, Eichhornia crassipes etc., such as salvage not in time, these water plants will be climing rapidly in the water body of eutrophication Prolong, overflow, cover the water surface, reduces light penetration capacity, influence the growth of benthon, and it is dense to reduce oxygen in water Degree, threatens Fish Survival, and rotten plant is also further exacerbated by the pollution of water environment.Most water body floating material relies only on manually Cleaning, time-consuming and laborious, inefficiency are salvaged, and can not accomplish to clear up in time.
The mode that manner of cleaning up at this stage is predominantly manually salvaged, staff are carried out by artificial operation ship waterborne Operation, but elimination efficiency is excessively slow, heavy workload, leads to manpower and material resources higher cost;And it is clear to be used for large marine/river surface rubbish Ship is swept since hull volume is larger, and is mostly petroleum offer power, so the lesser lake of area or brook can not be cleaned, And have a certain impact to water quality tool, it is unfavorable for the protection of ecological environment.
Utility model content
The utility model embodiment provides a kind of cleaning ship waterborne, is mainly used with solving existing water surface clean operation It is artificial to salvage mode, higher cost and the technical issues of be not suitable for small area water surface cleaning, to optimize cleaning waterborne The structure of ship, can adapt to the cleaning operation of the narrow water surface, and reduce costs.
In order to solve the above-mentioned technical problem, the utility model embodiment provides a kind of cleaning ship waterborne, including cleaning ship Ontology, master control set and driving device, the master control set include controller and for receiving the wireless of wireless control signal Communication module, the driving device include drum drive motor and propeller driving motor, the controller respectively with the nothing Line communication module, the drum drive motor, propeller driving motor electrical connection;
The cleaning ship ontology includes support frame, the first hull, the second hull, transmission net chain belt, collecting box and spiral Paddle, first hull are connected on the left side of support frame as described above, and second hull is connected on the right side of support frame as described above, The collecting box is set on support frame as described above, and the top of the collecting box is equipped with opening;
The front side bottom of support frame as described above is equipped with the first roller frame, and support frame as described above is equipped with second tin roller frame, and institute Above the edge for stating the opening that second tin roller frame is located at the collecting box;The transmission net chain belt is rotatably sleeved on described On the roller of one roller frame and the second tin roller frame, the rolling at the driving end and the second tin roller frame of the drum drive motor Cylinder shaft connection;The propeller driving motor is mounted on the rear side of support frame as described above, and the propeller driving motor Drive the rotation axis connection at end and the propeller.
Preferably, the cleaning ship waterborne further includes collection device, and the collection device includes that the first collection is expanded Swing arm, second collect extensible arm, the first crank connecting link, the second crank connecting link, third crank connecting link, the 4th crank connecting link, first Lever shaft and the second lever shaft;
The driving device further includes the push-rod electric machine being electrically connected with the controller;
Before one end, described second one end for collecting extensible arm of the first collection extensible arm are hinged on support frame as described above On side, and the first collection extensible arm, the second collection extensible arm are located at the two sides of the first roller frame;
One end of first crankshaft-link rod be hinged on it is described first collect extensible arm on, first crankshaft-link rod it is another One end and one end of second crankshaft-link rod are hinged, and one end of the third crankshaft-link rod is hinged on described second and collects extension On arm, the other end of the third crankshaft-link rod and one end of the 4th crankshaft-link rod are hinged;
The other end of second crankshaft-link rod, the 4th crankshaft-link rod the other end be respectively hinged at push rod electricity On the driving end of machine;Wherein, the first lever shaft described in the second crankshaft-link rod push rod is rotatably connected to support frame as described above On, the second lever shaft described in the 4th crankshaft-link rod push rod is rotatably connected on support frame as described above.
Preferably, the driving device further includes rotating electric machine and swingle, the rotating electric machine and the control Device electrical connection processed;
The rotating electric machine is mounted on the rear side of support frame as described above, and the swingle is rotatably coupled by idler wheel part On support frame as described above;
The driving end of the rotating electric machine is connected on one end of the swingle, and the propeller driving motor is fixed on On the other end of the swingle.
Preferably, the controller is single-chip microcontroller.
Preferably, the model AT89C51 or AT89C52 of the single-chip microcontroller.
Preferably, the wireless communication module is Nrf2401 wireless digital transmission chip.
Preferably, the transmission net chain band is equipped with rake teeth.
Preferably, first hull, second hull material be rubber.
Preferably, first hull, second hull are inflating rubber capsule.
Compared with the prior art, the utility model embodiment has the following beneficial effects:
(1) the cleaning ship waterborne is floated on the surface by first hull, second hull, can remove scape in time Floater is seen, keeps limpid using the landscape water surface, it can also be used to the artificial growth that purifies water or in eutrophication water The water plant that domain is largely spread unchecked is collected;
(2) controller by the wireless communication module receive shore-side operator wireless control signal, and according to Wireless control signal controls the cleaning ship waterborne and executes the orders such as advance, retrogressing, steering, salvaging floating material, can be in automatic side The route that formula lower edge is set collects the floater of certain area, and designated position can also be removed under manual remote control mode Floater;
(3) the cleaning ship structure waterborne provided by the utility model is simple and convenient, need not manually enter ship operation, be suitable for narrow The narrow lesser water surface of water body or area, and production cost is low, catamaran type hull and floating material transmission and collection device can bases It needs to be designed to different size, to adapt to the different waters surface, difference collects the job requirement of object;
(4) the transmission net chain belt is obliquely installed on support frame as described above, wherein the first roller frame protrudes into the water surface Under, the drum drive motor drives the roller of the second tin roller frame to rotate under the control of the controller, to drive The movement of transmission net chain belt is stated, and the direction of motion of the transmission net chain belt is from the bottom to top, so that the floating material on the water surface is defeated It is sent on the second tin roller frame, so that floating material is eventually fallen into the collecting box;
(5) the utility model embodiment realizes the remote control function of cleaning ship waterborne by the wireless communication module Can, fishing is aboard ship carried out without staff, advantageously reduces cost of labor.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of an angle of the cleaning ship waterborne of the utility model embodiment one;
Fig. 2 is the structural schematic diagram of another angle of the cleaning ship waterborne of the utility model embodiment one;
Fig. 3 is the structural schematic diagram of the support frame of the utility model embodiment one;
Fig. 4 is the control principle drawing of the cleaning ship waterborne of the utility model embodiment one;
Wherein, the appended drawing reference of Figure of description is as follows:
1, support frame;2, the first hull;21, the second hull;3, collecting box;4, transmission net chain belt;5, the first roller frame; 51, second tin roller frame;6, propeller;61, swingle;7, master control set;71, controller;72, wireless communication module;8, it drives Device;81, drum drive motor;82, propeller driving motor;83, push-rod electric machine;84, rotating electric machine;9, collection device;91, First collects extensible arm;92, second extensible arm is collected;93, the first crank connecting link;94, the second crank connecting link;95, third crank Connecting rod;96, the 4th crank connecting link;97, the first lever shaft;98, the second lever shaft.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Figure 1 and Fig. 4, the preferred embodiment in the utility model provide a kind of cleaning ship waterborne, including cleaning ship sheet Body, master control set 7 and driving device 8, the master control set 7 include controller 71 and the nothing for receiving wireless control signal Line communication module 72, the driving device 8 include drum drive motor 81 and propeller driving motor 82, and the controller 71 divides It is not electrically connected with the wireless communication module 72, the drum drive motor 81, the propeller driving motor 82;
The cleaning ship ontology include support frame 1, the first hull 2, the second hull 21, transmission net chain belt 4, collecting box 3 with And propeller 6, first hull 2 are connected on the left side of support frame as described above 1, second hull 21 is connected to the support On the right side of frame 1, the collecting box 3 is set on support frame as described above 1, and the top of the collecting box 3 is equipped with opening;
The front side bottom of support frame as described above 1 is equipped with the first roller frame 5, and support frame as described above 1 is equipped with second tin roller frame 51, And the second tin roller frame 51 is located above the edge of the opening of the collecting box 3;The transmission net chain belt 4 is rotationally arranged On the roller of the first roller frame 5 and the second tin roller frame 51, the driving end of the drum drive motor 81 with it is described The roller shaft of second tin roller frame 51 connects;The propeller driving motor 82 is mounted on the rear side of support frame as described above 1, and institute State the rotation axis connection at the driving end and the propeller 6 of propeller driving motor 82.
In the utility model embodiment, the cleaning ship waterborne is floating by first hull 2, second hull 21 On the water surface, landscape floater can be removed in time, keep limpid using the landscape water surface, it can also be used to purify water artificial kind Water plant that is planting or largely spreading unchecked in the waters of eutrophication is collected;
The controller 71 by the wireless communication module 72 receive shore-side operator wireless control signal, and according to Wireless control signal controls the cleaning ship waterborne and executes the orders such as advance, retrogressing, steering, salvaging floating material, can be in automatic side The route that formula lower edge is set collects the floater of certain area, and designated position can also be removed under manual remote control mode Floater;
The cleaning ship structure waterborne provided by the utility model is simple and convenient, need not manually enter ship operation, be suitable for narrow Water body or the lesser water surface of area, and production cost is low, and catamaran type hull and floating material transmission and collection device 9 can be according to need It is designed to different size, to adapt to the different waters surface, difference collects the job requirement of object;
The transmission net chain belt 4 is obliquely installed on support frame as described above 1, wherein the first roller frame 5 protrudes into the water surface Under, the drum drive motor 81 drives the roller of the second tin roller frame 51 to rotate under the control of the controller 71, with The transmission net chain belt 4 is driven to move, and the direction of motion of the transmission net chain belt 4 is from the bottom to top, thus by the water surface Floating material is transported on the second tin roller frame 51, so that floating material is eventually fallen into the collecting box 3;
The utility model embodiment realizes the remote control function of cleaning ship waterborne by the wireless communication module 72, Fishing is aboard ship carried out without staff, advantageously reduces cost of labor.
In the utility model embodiment, the controller 71 is single-chip microcontroller.Preferably, the model of the single-chip microcontroller AT89C51 or AT89C52.The wireless communication module 72 is Nrf2401 wireless digital transmission chip.
The controller 71 mainly controls Nrf2401 wireless digital transmission chip, carries out transmission image and Various types of data etc. Information carries out feeding back to operator.The communication mode of the wireless communication module 72 is by information transmission mode by both ends using half Duplex mode communication, operator use wireless remote control handle or other wireless telecommunications systems on the coast, issue the correspondence of cleaning ship Signal can be converted and be transmitted to the controller 71, the control by movement instruction, the corresponding wireless communication module 72 Device 71 processed drives the corresponding mechanisms such as the drum drive motor 81, the propeller driving motor 82 to make corresponding instruction movement.
As illustrative, when operator issues the motion command of the transmission net chain belt 4 at a distance, the wireless telecommunications Module 72 can transmit signals on single-chip microcontroller, then control the drum drive motor 81 by single-chip microcontroller, make the drum driven Motor 81 rotates, and achievees the effect that the transmission net chain belt 4 moves.Its working principle is that manual operation signal projector makes phase It should adjust, wireless module passes the signal along on 51 single-chip microcontrollers, and single-chip microcontroller makes respective handling according to information.Signal is transmitted to electricity Machine, after the corresponding mechanisms such as retarder, shipping is dynamic to make corresponding change, meets the needs of under different situations, carries out different implementation Scheme.
Referring to Figure 1 to Fig. 3, in the utility model embodiment, the material of first hull 2, second hull 21 Matter is rubber.Preferably, first hull 2, second hull 21 are inflating rubber capsule.It should be understood that described waterborne Cleaning ship is floated on the surface using first hull 2, second hull 21, and the first roller frame 5 should contact the water surface Or be located under the water surface, during exercise in favor of the transmission net chain belt 4, effectively floater can be hooked, thus Finally it is transported to floating material in the collecting box 3.
In the utility model embodiment, the transmission net chain belt 4 is equipped with rake teeth (not shown), to be conducive to float Floating object, which triggers, to be come, and improves the reliability and transfer efficiency of the transmission net chain belt 4.
Preferably, sieve is installed in the opening at 3 top of collecting box, the bottom plate of the collecting box 3 is equipped with leak Hole, it is described so as to effectively mitigate in favor of filtering extra water after floater is collected into the collecting box 3 The overall weight of cleaning ship waterborne is conducive to salvage more floating materials, improves the salvaging efficiency of the cleaning ship waterborne.
Fig. 3 and Fig. 4 are referred to, in the utility model embodiment, the cleaning ship waterborne further includes collection device 9, institute Stating collection device 9 includes that the first collection extensible arm 91, second collects extensible arm 92, the first crank connecting link 93, the second crank connecting link 94, third crank connecting link 95, the 4th crank connecting link 96, the first lever shaft 97 and the second lever shaft 98;
The driving device 8 further includes the push-rod electric machine 83 being electrically connected with the controller 71;
One end, described second one end for collecting extensible arm 92 of the first collection extensible arm 91 are hinged on support frame as described above On 1 front side, and the first collection extensible arm 91, the second collection extensible arm 92 are located at the two of the first roller frame 5 Side;
One end of first crankshaft-link rod is hinged on described first and collects on extensible arm 91, first crankshaft-link rod One end of the other end and second crankshaft-link rod is hinged, and one end of the third crankshaft-link rod, which is hinged on described second and collects, to be expanded In swing arm 92, the other end of the third crankshaft-link rod and one end of the 4th crankshaft-link rod are hinged;
The other end of second crankshaft-link rod, the 4th crankshaft-link rod the other end be respectively hinged at push rod electricity On the driving end of machine 83;Wherein, the first lever shaft 97 described in the second crankshaft-link rod push rod is rotatably connected to the branch On support 1, the second lever shaft 98 described in the 4th crankshaft-link rod push rod is rotatably connected on support frame as described above 1.
In practical water surface cleaning operation, by the power device by the push-rod electric machine 83 as the collection device 9, Described first, which collects extensible arm 91 and described second, collects extensible arm 92 set on the front side of the cleaning ship waterborne, cleaning ship waterborne In advancement, by changing the described first angle for collecting extensible arm 91 and the second collection extensible arm 92, with reality Existing fishing area increases or reduces, and so as to be suitable for the cleaning operation of various water surface areas, is conducive to water surface drift The collection of floating object.
Fig. 2 and Fig. 4 are referred to, in the utility model embodiment, the driving device 8 further includes rotating electric machine 84 and rotation Bull stick 61, the rotating electric machine 84 are electrically connected with the controller 71;
The rotating electric machine 84 is mounted on the rear side of support frame as described above 1, and the swingle 61 can be rotated by idler wheel part Ground is connected on support frame as described above 1;
The driving end of the rotating electric machine 84 is connected on one end of the swingle 61, the propeller driving motor 82 It is fixed on the other end of the swingle 61.
It should be understood that the cleaning ship waterborne further includes power supply device, 7 electricity of the power supply device and the master control set Connection, the power supply device have the function of charging and power;Preferably, the power supply device uses lithium battery, can be effective The increase cleaning ship waterborne activity duration.
To sum up, the utility model embodiment provides a kind of cleaning ship waterborne, including cleaning ship ontology, master control set 7 with And driving device 8, the master control set 7 include controller 71 and the wireless communication module 72 for receiving wireless control signal, The driving device 8 includes drum drive motor 81 and propeller driving motor 82, the controller 71 respectively with it is described wireless Communication module 72, the drum drive motor 81, the propeller driving motor 82 electrical connection;
The cleaning ship ontology include support frame 1, the first hull 2, the second hull 21, transmission net chain belt 4, collecting box 3 with And propeller 6, first hull 2 are connected on the left side of support frame as described above 1, second hull 21 is connected to the support On the right side of frame 1, the collecting box 3 is set on support frame as described above 1, and the top of the collecting box 3 is equipped with opening;
The front side bottom of support frame as described above 1 is equipped with the first roller frame 5, and support frame as described above 1 is equipped with second tin roller frame 51, And the second tin roller frame 51 is located above the edge of the opening of the collecting box 3;The transmission net chain belt 4 is rotationally arranged On the roller of the first roller frame 5 and the second tin roller frame 51, the driving end of the drum drive motor 81 with it is described The roller shaft of second tin roller frame 51 connects;The propeller driving motor 82 is mounted on the rear side of support frame as described above 1, and institute State the rotation axis connection at the driving end and the propeller 6 of propeller driving motor 82.
Compared with the prior art, the utility model embodiment has the following beneficial effects:
(1) the cleaning ship waterborne is floated on the surface by first hull 2, second hull 21, can be clear in time Except landscape floater, keep limpid using the landscape water surface, it can also be used to the artificial growth that purifies water or in eutrophication The water plant largely spread unchecked of waters collect;
(2) controller 71 receives the wireless control signal of shore-side operator by the wireless communication module 72, and The cleaning ship waterborne, which is controlled, according to wireless control signal executes the orders such as advance, retrogressing, steering, salvaging floating material, it can be certainly The route that flowing mode lower edge is set collects the floater of certain area, can also remove specific bit under manual remote control mode The floater set;
(3) the cleaning ship structure waterborne provided by the utility model is simple and convenient, need not manually enter ship operation, be suitable for narrow Narrow water body;And for Complex water body, the operational risk of personnel is reduced;Production cost is low, and catamaran type hull and floating material pass Different size can be designed to collection device 9 as needed by sending, and to adapt to the different waters surface, difference collects the job requirement of object;
(4) the transmission net chain belt 4 is obliquely installed on support frame as described above 1, wherein the first roller frame 5 protrudes into water Under face, the drum drive motor 81 drives the roller of the second tin roller frame 51 to rotate under the control of the controller 71, To drive the transmission net chain belt 4 to move, and the direction of motion of the transmission net chain belt 4 is from the bottom to top, thus by the water surface Floating material be transported on the second tin roller frame 51 so that floating material is eventually fallen into the collecting box 3;
(5) the utility model embodiment realizes the remote control function of cleaning ship waterborne by the wireless communication module 72 Can, fishing is aboard ship carried out without staff, advantageously reduces cost of labor.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art For personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these are improved and profit Decorations are also considered as the protection scope of the utility model.

Claims (9)

1. a kind of cleaning ship waterborne, which is characterized in that including cleaning ship ontology, master control set and driving device, the master control Device includes controller and the wireless communication module for receiving wireless control signal, and the driving device includes drum driven electricity Machine and propeller driving motor, the controller respectively with the wireless communication module, the drum drive motor, the spiral The electrical connection of paddle driving motor;
The cleaning ship ontology includes support frame, the first hull, the second hull, transmission net chain belt, collecting box and propeller, institute It states the first hull to be connected on the left side of support frame as described above, second hull is connected on the right side of support frame as described above, described Collecting box is set on support frame as described above, and the top of the collecting box is equipped with opening;
The front side bottom of support frame as described above is equipped with the first roller frame, and support frame as described above is equipped with second tin roller frame, and described the Two roller framves are located above the edge of the opening of the collecting box;The transmission net chain belt is rotatably sleeved on first rolling On the roller of tub and the second tin roller frame, the driving end of the drum drive motor and the roller of the second tin roller frame turn Axis connection;The propeller driving motor is mounted on the rear side of support frame as described above, and the driving of the propeller driving motor The rotation axis connection at end and the propeller.
2. cleaning ship waterborne as described in claim 1, which is characterized in that the cleaning ship waterborne further includes collection device, institute Stating collection device includes the first collection extensible arm, the second collection extensible arm, the first crank connecting link, the second crank connecting link, third song Handle connecting rod, the 4th crank connecting link, the first lever shaft and the second lever shaft;
The driving device further includes the push-rod electric machine being electrically connected with the controller;
One end, described second one end for collecting extensible arm of the first collection extensible arm are hinged on the front side of support frame as described above On, and the first collection extensible arm, the second collection extensible arm are located at the two sides of the first roller frame;
One end of first crankshaft-link rod is hinged on described first and collects on extensible arm, the other end of first crankshaft-link rod Hinged with one end of second crankshaft-link rod, one end of the third crankshaft-link rod is hinged on described second and collects extensible arm On, the other end of the third crankshaft-link rod and one end of the 4th crankshaft-link rod are hinged;
The other end of second crankshaft-link rod, the 4th crankshaft-link rod the other end be respectively hinged at the push-rod electric machine It drives on end;Wherein, the first lever shaft described in the second crankshaft-link rod push rod is rotatably connected on support frame as described above, institute The second lever shaft described in the 4th crankshaft-link rod push rod is stated to be rotatably connected on support frame as described above.
3. cleaning ship waterborne as described in claim 1, which is characterized in that the driving device further includes rotating electric machine and rotation Bar, the rotating electric machine are electrically connected with the controller;
The rotating electric machine is mounted on the rear side of support frame as described above, and the swingle is rotatably connected to institute by idler wheel part It states on support frame;
The driving end of the rotating electric machine is connected on one end of the swingle, and the propeller driving motor is fixed on described On the other end of swingle.
4. cleaning ship waterborne as described in claim 1, which is characterized in that the controller is single-chip microcontroller.
5. cleaning ship waterborne as claimed in claim 4, which is characterized in that the model AT89C51 of the single-chip microcontroller or AT89C52。
6. cleaning ship waterborne as described in claim 1, which is characterized in that the wireless communication module is Nrf2401 without line number Word transmits chip.
7. cleaning ship waterborne as described in claim 1, which is characterized in that the transmission net chain band is equipped with rake teeth.
8. cleaning ship waterborne as described in claim 1, which is characterized in that the material of first hull, second hull It is rubber.
9. cleaning ship waterborne as described in claim 1, which is characterized in that first hull, second hull are to fill Gas rubber bag tank.
CN201821107097.6U 2018-07-11 2018-07-11 A kind of cleaning ship waterborne Expired - Fee Related CN208792279U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110171544A (en) * 2019-05-06 2019-08-27 重庆机电职业技术学院 The small-sized automatic collecting ship of equilibrium water surface floating material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110171544A (en) * 2019-05-06 2019-08-27 重庆机电职业技术学院 The small-sized automatic collecting ship of equilibrium water surface floating material

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