阅读说明：本技术 滚塑船艇 (Rotational moulding boat ) 是由 李晓罕 周成俊 王海华 于 2021-07-29 设计创作，主要内容包括：本发明提供了一种滚塑船艇,属于船舶技术领域。它解决了现有的滚塑船艇的发泡材料与外壳无法紧密结合的问题。本滚塑船艇,包括船体,船体由内至外依次为发泡内芯、阻隔内层、发泡外层和外壳；或船体由内至外依次为发泡内芯、发泡外层和外壳。本滚塑船艇的发泡外层或发泡外层与阻隔内层使得发泡内芯与外壳紧密结合,当船体不慎遭受撞击时,有利于将撞击力向四周传递,实现分散作用力以及有利于快速吸收能量,降低外壳破损可能性,显著改善船体的抗冲击性能。(The invention provides a rotational molding boat, and belongs to the technical field of ships. It has solved the unable closely problem that combines of expanded material and shell of current rotational moulding ship. The rotational molding boat comprises a boat body, wherein the boat body sequentially comprises a foaming inner core, a barrier inner layer, a foaming outer layer and a shell from inside to outside; or the hull is sequentially provided with the foaming inner core, the foaming outer layer and the shell from inside to outside. This rotational moulding ship's foaming skin or foaming skin and separation inlayer make foaming inner core and shell combine closely, when the hull suffered the striking carelessly, are favorable to transmitting the impact all around to, realize the dispersion effort and be favorable to quick absorbed energy, reduce the damaged possibility of shell, show the shock resistance who improves the hull.)

1. The utility model provides a rotational moulding ship, includes hull (1), its characterized in that, hull (1) is foaming inner core (1 a), separation inlayer (1 b), foaming skin (1 c) and shell (1 d) from inside to outside in proper order, or hull (1) is foaming inner core (1 a), foaming skin (1 c) and shell (1 d) from inside to outside in proper order.

2. The rotomoulded boat of claim 1, wherein the foamed inner core (1 a), barrier inner layer (1 b), foamed outer layer (1 c) and outer shell (1 d) are bonded in sequence, or the foamed inner core (1 a), foamed outer layer (1 c) and outer shell (1 d) are bonded in sequence.

3. Rotomoulded boat according to claim 1, characterized in that the foamed outer layer (1 c) has a thickness of 8mm to 30 mm.

4. The rotomoulded boat of claim 1, wherein the foamed inner core (1 a) is made of polyurethane foam; the foaming outer layer (1 c) is made of polyethylene foaming material; the shell (1 d) is made of polyethylene or polypropylene.

5. The rotomoulded boat of claim 1, wherein the barrier inner layer (1 b) has a thickness less than the thickness of the outer shell (1 d).

6. The rotomoulded boat of claim 4, wherein the barrier inner layer (1 b) has a thickness of 1.5mm to 2.5 mm.

7. Rotomoulded boat according to claim 1, characterized in that the barrier inner layer (1 b) is made of polyethylene or polypropylene.

8. A rotomoulded boat according to any one of claims 1 to 6, wherein the hull (1) includes a hold (1 f), the hold (1 f) including a floor (1 f 1) and two side panels (1 f 2), the insides of both side panels (1 f 2) being provided with bench portions (1 f 3).

9. The rotomoulded boat of claim 7, wherein the hull (1) comprises a bow (1 e) and a stern (1 g), the bench portion (1 f 3) being connected to each of the side board portion (1 f 2), the bottom board portion (1 f 1), the bow (1 e) and the stern (1 g).

10. The rotomoulded boat of claim 7, wherein a rope is mounted on top of the side board portion (1 f 2) and arranged in the longitudinal direction of the side board portion (1 f 2).

Technical Field

The invention belongs to the technical field of ships, relates to a boat, and particularly relates to a rotational molding boat.

Background

The fire rescue boat is a portable boat mainly used for fire rescue. The traditional flood rescue boat mainly comprises an inflatable rubber boat and a glass fiber reinforced plastic assault boat, wherein the inflatable rubber boat has the advantage of convenient transportation, but also has the defects of small bearing capacity, easy aging of rubber, easy puncture when encountering sharp obstacles and the like; the glass fiber reinforced plastic assault boat has the defects of pungent smell, harm to environment and human health, poor impact resistance of the boat body, easy sinking after water inlet, incapability of recycling the scrapped boat body and the like in the production process.

With the development of rotational molding technology, a mechanically/mechanically-propelled dual-purpose rotational molding boat (application number 201020691601.9) has been proposed, which has the advantages of light weight, economy, safety and the like, but also has some disadvantages: 1. if the hull shell is broken, water enters the inner cavity of the shell, so that the ship cannot be normally used and personal safety is endangered. 2. It has been proposed to fill the interior of the hull with a foaming agent, such as a rotomoulded hollow hull (application No. 201020647439.0), but the internal foam material does not bond tightly to the hull and does not significantly improve the impact resistance of the hull. 3. Ordinary rotational moulding ships and light boats usually match the propeller of fixed model, and the condition is more urgent during the fire rescue, expects that more different models's propeller homoenergetic enough installs on rotational moulding ships and light boats. 4. The working condition is more abominable during fire rescue, if rescue in the torrential rain, carry life buoy etc. ordinary rotational moulding ships and light boats can't satisfy the fire rescue demand.

Disclosure of Invention

The invention provides a rotational molding boat, which aims to solve the technical problem of how to obviously enhance the shock resistance of the rotational molding boat, and the rotational molding boat never sinks even if a boat body is broken, and can still sail under the condition that the boat body is broken.

The technical problem to be solved by the invention can be realized by the following technical scheme: the first scheme is as follows: a rotational molding boat comprises a boat body and is characterized in that the boat body sequentially comprises a foaming inner core, a blocking inner layer, a foaming outer layer and a shell from inside to outside.

Scheme II: a rotational molding boat comprises a boat body and is characterized in that the boat body sequentially comprises a foaming inner core, a foaming outer layer and a shell from inside to outside.

The ship body is formed by adopting a rotational molding process, and compared with the prior art, the rotational molding ship of the scheme I is additionally provided with a barrier inner layer and a foaming outer layer connected between the barrier inner layer and the shell; the rotational molding boat of the second scheme is additionally provided with a foaming outer layer connected between the foaming inner core and the outer shell;

the foaming outer layer is bonded with the barrier inner layer and the shell, or the foaming outer layer is bonded with the foaming inner core and the shell. This rotational moulding ship's foaming skin or foaming skin and separation inlayer make foaming inner core and shell combine closely, when the hull suffered the striking carelessly, are favorable to transmitting the impact all around to, realize the dispersion effort and be favorable to quick absorbed energy, reduce the damaged possibility of shell, show the shock resistance who improves the hull.

After the shell and the foaming inner core of the rotational molding boat are broken carelessly, water can only fill the gap, so that the bearing capacity of the rotational molding boat is only slightly reduced, and the rotational molding boat cannot sink. Even if the ship body is broken, the foamed inner core generates buoyancy, so that the rotational molding ship can not sink, and even the rotational molding ship can still sail continuously.

Compared with the prior art, the ship body of the rotational molding boat has the advantages of high strength and difficult damage; the shell and the blocking inner layer of the ship body in the rotational molding boat are damaged, and sinking cannot be caused. This rotational moulding ships and light boats has the security height, is fit for using in adverse circumstances, is fit for being used for amusement yacht, fire control rescue ship promptly.

In the rotomoulding boat, the thickness of the foamed outer layer is 8mm-30 mm. In the rotational molding boat, the foaming inner core is made of polyurethane foaming material; the foaming outer layer is made of polyethylene foaming material; the shell is made of polyethylene or polypropylene.

The polyethylene foam material and the polyethylene or polypropylene plate or membrane have the advantage of high bonding strength, and meanwhile, the polyethylene foam material can absorb and disperse external impact force through bending to achieve the buffering effect. From this, above-mentioned structure realizes improving foaming inner core and shell and combines the compactness, and effective dispersion impact effectively controls polyethylene expanded material use amount simultaneously, realizes reducing the manufacturing cost of rotational moulding ship.

In the rotomoulded boat described above, the barrier inner layer has a thickness less than the thickness of the outer shell. In the rotomoulded boat described above, the barrier inner layer has a thickness of from 1.5mm to 2.5 mm. In the rotomoulded boat described above, the barrier inner layer is made of polyethylene or polypropylene. The structure not only realizes the improvement of the combination tightness of the foaming inner core and the shell, but also is beneficial to the forming of the blocking inner layer, effectively controls the usage amount of polyethylene or polypropylene, and realizes the reduction of the manufacturing cost of the rotational molding boat.

In the rotomolding boat, the hull includes a cabin, the cabin includes a bottom plate and two side plates, and the insides of the two side plates are provided with stool parts. The seat part is arranged for passengers to sit; still realize increasing shell inner chamber volume, and then increase the volume of foaming inner core, further guarantee that the hull breaks and also can not sink.

In the rotomolding boat, the boat body comprises a bow and a stern, and the stool part is connected with the side board part, the bottom board part, the bow and the stern. The structure obviously improves the strength of the rotational molding boat, the shock resistance and the bearing capacity.

In the above rotomoulded boat, the top of the side plate is provided with a rope, and the rope is provided in the longitudinal direction of the side plate. The passengers can hold the rope and are convenient for people falling into water to climb on the rotational molding boat.

Drawings

Fig. 1 is a schematic perspective view of a rotomoulded boat.

Figure 2 is a schematic top view of a rotomoulded boat.

Fig. 3 is a schematic cross-sectional view taken along line a-a in fig. 2.

Fig. 4 is an enlarged view of a portion C of fig. 3.

Fig. 5 is a schematic cross-sectional view at B-B in fig. 2.

Figure 6 is a schematic view of the structure of the rotomoulded boat from the right.

Fig. 7 is an enlarged view of a portion of fig. 2.

FIG. 8 is a schematic sectional view of the second embodiment and the section A-A in FIG. 2.

In the figure, 1, a ship body; 1a, a foaming inner core; 1b, an inner barrier layer; 1c, a foamed outer layer; 1d, a shell; 1e, a bow; 1f, a cabin; 1f1, bottom plate part; 1f2, side plate portion; 1f3, a stool part; 1g, a stern; 1g1, rear panel; 1g2, an avoidance port; 1g3, water retaining part; 1h, a storage cavity; 2. a driving console; 3. a lamp holder; 4. a tail plate; 4a, a lower tail plate; 4b, an upper tail plate; 4c, a groove; 5. a bolt and a nut; 6. a propeller; 7. a D-shaped ring; 8. a rope; 9. a drain valve; 10. clamping the strip; 11. a signal lamp; 12. an illuminating lamp; 13. a ship sidelight; 14. a lifebuoy hook; 15. a U-shaped bolt.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

The first embodiment is as follows: as shown in fig. 1 to 7, a rotomoulded boat includes a hull 1, a cockpit 2, a lamp holder 3 and a tail plate 4.

The ship body 1 is formed by adopting a rotational molding process, and the ship body 1 sequentially comprises a foaming inner core 1a, a barrier inner layer 1b, a foaming outer layer 1c and a shell 1d from inside to outside. The foaming inner core 1a is made of polyurethane foaming material, and the foaming outer layer 1c is made of polyethylene foaming material; the barrier inner layer 1b and the outer shell 1d are made of polyethylene or polypropylene.

The thickness of the foamed outer layer 1c is 8mm to 30mm, and the barrier inner layer 1b is arranged substantially parallel to the outer shell 1 d. The foamed outer layer 1c is bonded to both the barrier inner layer 1b and the outer shell 1 d. The thickness of the blocking inner layer 1b is smaller than that of the shell 1d, and the thickness of the blocking inner layer 1b is 1.5mm-2.5mm, so that the blocking inner layer 1b is favorably formed, the rotational molding boat is reduced, and the manufacturing cost is reduced.

The hull 1 is provided with a bow 1e, a cabin 1f and a stern 1g in sequence from front to back. The cabin 1f comprises a bottom plate part 1f1 and two side plate parts 1f2, stool parts 1f3 are arranged on the inner sides of the two side plate parts 1f2, and the stool parts 1f3 are connected with the side plate parts 1f2, the bottom plate part 1f1, the bow part 1e and the stern part 1g, so that the stool parts 1f3 not only improve the bearing capacity of the rotomoulding boat, but also improve the strength of the boat body 1, and passengers can sit on the stool parts 1f3 for rest. The side of the stool part 1f3 is provided with a D-ring 7 for fixing the transportation material. The top of the side panel portion 1f2 has a handle area to facilitate handling of the rotomoulded boat; the top of the side plate part 1f2 is provided with a rope 8, so that the side plate part not only can be held by passengers, but also is convenient for carrying the rotomoulded boat.

The drain valve 9 is mounted on the bottom plate part 1f1 of the cabin 1f, and the drain valve 9 can be opened when the rotomoulding boat is cleaned and maintained, so that water in the cabin 1f can be drained and drained conveniently. Still be equipped with storing chamber 1h in cabin 1f, storing chamber 1h can be used to deposit battery and fuel.

The stern 1g has a rear plate portion 1g1 and a water blocking portion 1g3, an avoidance port 1g2 is provided on the rear plate portion 1g1, the water blocking portion 1g3 is located inside the rear plate portion 1g1, and the water blocking portion 1g3 prevents water from entering the cabin 1f through the avoidance port 1g 2. Dodge mouth 1g2 department and be provided with tailboard 4, pass through bolt and nut 5 fixed connection between the back board portion 1g1 of tailboard 4 and stern 1g, suitable propeller 6 can be selected according to the actual use condition to the rotational moulding ship from this, again according to propeller 6 selection matched tailboard 4, set up the bolt hole on tailboard 4 and just can fix tailboard 4 on stern 1g, realize installing propeller 6. The tail plate 4 comprises a lower tail plate 4a and an upper tail plate 4b positioned above the lower tail plate 4a, and the lower tail plate 4a and the upper tail plate 4b are fixed on the stern 1g through bolts and nuts 5; the actual height of the top surface of the tailgate 4 may be adjusted depending on whether the tailgate 4b is installed or not, and the tailgate 4 is constructed to fit most types of propellers 6. Two U-shaped bolts 15 are installed on the lower tail plate 4a, so that the propeller 6 can be connected with the U-shaped bolts 15 by a rope to fix the propeller 6 when being clamped on the tail plate 4, namely, the propeller 6 is not required to be fixed on the tail plate 4 by bolts and nuts, and the installation convenience of the propeller 6 is obviously improved.

The driving operation platform 2 is arranged in the cabin 1f, the driving operation platform 2 is fixedly connected with the bottom plate part 1f1 through bolts and nuts, and the propeller 6 is connected with the driving operation platform 2 through a direction line and a lead, so that the rotomoulding boat can be conveniently driven. The driving operation platform 2 can be conveniently disassembled and assembled, so that the transportation and storage convenience of the rotational molding boat is improved, and whether the driving operation platform 2 is used or not can be selected according to the actual use condition.

The edge of stern 1g dodges mouth 1g2 has seted up recess 4c, and in tailboard 4 embedding recess 4c, be convenient for like this install tailboard 4 and improve the installation fastness of tailboard 4. The thickness of tailboard 4 also can adjust according to propeller 6, and when 4 thickness of tailboard were less than recess 4c width, can fill up between tailboard 4 and recess 4c side and establish card strip 10, can effectively guarantee tailboard 4 installation fastness like this.

Lamp holder 3 is equipped with in the top of stern 1g, through bolt and nut fixed connection between lamp holder 3 and the stern 1g, also be convenient for like this dismantle lamp holder 3, and then be convenient for transport and store to and whether install lamp holder 3 according to the nimble selection of in service behavior. The lamp bracket 3 is provided with a signal lamp 11, a lighting lamp 12, a ship lamp 13 and a life buoy hook 14, so that people can observe the rescue boat conveniently, and the rescue boat can be found and saved.

Example two: the structure and principle of the present embodiment are substantially the same as those of the first embodiment, and the substantially same parts are not described redundantly, but only different parts are described, and the different parts are: the hull 1 is not provided with an inner barrier layer 1b, and the hull 1 sequentially comprises a foaming inner core 1a, a foaming outer layer 1c and an outer shell 1d from inside to outside. The foaming outer layer 1c is adhered with the foaming inner core 1a and the outer shell 1 d.