PET combined floating ball and cladding floating ballTechnical Field
The invention relates to the technical field of floating balls for fishery, in particular to a PET combined floating ball and a cladding floating ball.
Background
A large number of floating balls are needed in aquaculture equipment, and the floating balls mainly have the functions of providing buoyancy, such as lifting a net cage or paving a plate surface above the net cage to bear weight, etc., so that bearing pressure is high, and the floating balls are required to have long service life.
The floating ball in the prior art is generally made of HDPE (high density polyethylene) materials, and the floating ball made of the materials has low cost and light weight and is widely applied in practice. However, the HDPE material has low strength of the floating ball, weak pressure bearing capacity and easy water leakage failure after collision or scratch; in addition, even if the HDPE floating ball is intact, because the density of the HDPE plastic is smaller than that of water, gaps among molecules are larger, and the HDPE plastic belongs to oxygen-permeable plastic, and after long-term seawater soaking, oxygen permeation and water permeation can also occur, so that buoyancy is reduced, and further, the use value is lost.
The inventor knows that the PET material has excellent performance, such as 4 times of elastic modulus and 1.5 times of density of HDPE, has the advantages of high strength, no oxygen permeation and no water permeation, and can solve the problems of low strength and short service life if the PET material is applied to the floating ball. Meanwhile, the inventor finds that in reality, the PET polyester material is widely applied to the field of containing various liquids, such as manufacturing various bottles or barrels with very thin wall thickness, and can bear enough internal pressure without deformation, without precedent for the floating ball of the net cage, because the PET material is difficult to be made into a hollow container (such as a large floating ball) with large volume due to the limitations of technology and equipment. Therefore, how to obtain the PET floating ball with larger volume and being capable of being used in the aquaculture net cage at low cost on the basis of the prior art is an unsolved technical problem in the prior art.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the technical defect that the PET material is difficult to be made into a hollow closed container with larger volume to be used as the floating ball due to equipment and technology limitation in the prior art, thereby providing the PET combined floating ball which has low cost and can be used for the fishery aquaculture net cage.
The invention also provides a coated floating ball.
To this end, the invention provides a PET combination float, comprising:
A socket barrel having a butt socket;
A socket barrel having a docking socket capable of being fittingly inserted into the inside of the docking socket;
the socket connection structure is used for connecting the butt joint socket and the butt joint spigot, so that the socket barrel and the spigot barrel are connected through socket connection to form a hollow closed floating ball;
the socket barrel is made of PET material, and/or the spigot barrel is made of PET material.
As a preferred embodiment, the method further comprises:
the two ends of the barrel are provided with at least one barrel, and the barrel is arranged between the bell barrel and the spigot barrel and is provided with a butt joint bell and a butt joint spigot;
The socket connection structure is used for connecting the butt joint bell mouth and the butt joint spigot to enable the bell mouth barrel, at least one barrel with two openings at the two ends and the spigot barrel to be connected end to end, and the barrels with the two openings at the two ends are connected with the bell mouth barrel and the spigot barrel at the two sides in a socket manner to form a hollow closed floating ball;
the barrels with openings at two ends are made of PET materials.
The invention provides a PET combined floating ball, which comprises:
two bellmouth barrels are respectively provided with butt-joint bellmouths;
the barrels with two open ends are provided with two butt joint sockets which can be respectively inserted into the butt joint sockets in a matched manner, and the barrels are arranged between the two sockets;
The socket connection structure is used for connecting the butt joint bell mouth and the butt joint spigot, so that the bell mouth barrel, the barrels with openings at two ends and the bell mouth barrel are connected end to perform socket connection to form a hollow closed floating ball;
Or may include the steps of,
The socket barrels are two and are respectively provided with a butt joint socket;
The barrels with two open ends are provided with two butt joint sockets which can be inserted by the butt joint sockets respectively and are arranged between the two socket barrels;
The socket connection structure is used for connecting the butt joint bell mouth and the butt joint spigot, so that the spigot barrel, the barrels with openings at two ends and the spigot barrel are connected end to perform socket connection to form a hollow closed floating ball;
the barrels with openings at two ends are made of PET materials.
As a preferred aspect, the socket connection structure includes:
the first matching connection structure is arranged on the inner wall of the butt joint socket;
The second matched connection structure is arranged on the outer wall of the butt joint socket;
when the butt joint socket is inserted into the butt joint socket, the second matching connection structure is in close matching socket connection with the first matching connection structure.
As a preferable scheme, the first matching connection structure is an annular clamping groove arranged on the inner wall of the butt joint socket;
the second matching connection mechanism is an annular convex ring arranged on the outer wall of the butt joint socket.
As a preferable scheme, an annular clamping ring is arranged on the outer side of the annular clamping groove, and the inner diameter of the annular clamping ring is smaller than the outer diameter of the annular convex ring.
As a preferred scheme, the socket connection structure further comprises a glue adhesive layer, and the glue adhesive layer is coated on the inner wall of the first matched connection structure or the outer wall of the second matched connection structure before socket connection; after the socket connection is completed, the glue bonding layer is positioned between the inner wall of the socket and the outer wall of the socket.
As a preferred aspect, the socket connection structure further includes:
The first connecting surface is arranged on the inner wall of the butt joint socket;
The second connecting surface is arranged on the outer wall of the butt joint socket;
After the butt joint socket is inserted into the butt joint socket, the first connecting surface is opposite to the second connecting surface and is connected through the adhesive layer.
As a preferable scheme, the first connecting surface is arranged between the annular clamping groove and the barrel body;
The second connecting surface is arranged on one side, far away from the barrel body, of the annular convex ring.
As a preferable scheme, the second connecting surface is provided with an annular glue containing groove.
As a preferred aspect, the socket connection structure further includes:
the annular groove is arranged on the second connecting surface;
and the sealing ring is arranged in the annular groove.
As a preferable scheme, the cross sections of the bell barrel and the spigot barrel are round, square or round, and a plane structure is taken;
and/or the outer wall of the bellmouth barrel or the faucet barrel is provided with waves in a surrounding mode.
As a preferable scheme, the cross section of the barrel with the two ends being opened is round, square or round, and a plane structure is taken;
and/or the outer wall of the barrel with the openings at the two ends is provided with waves in a surrounding way.
The invention also provides a coated floating ball, which comprises a PET combined floating ball and a coating layer coated on the outer wall of the PET combined floating ball, wherein the PET combined floating ball is any one of the PET combined floating balls.
The invention also provides a coated floating ball, which comprises a PET combined floating ball and a coating layer coated on part or all side walls of the PET combined floating ball, wherein the PET combined floating ball is any one of the PET combined floating balls.
The technical scheme provided by the invention has the following advantages:
1. The invention relates to a PET combined floating ball, which comprises the following structural principles: the bung hole of one hollow barrel is designed to be in a bell mouth form, the bung hole of the other hollow barrel is designed to be in a spigot mouth form, the bung holes of the two hollow barrels are opposite, a layer of PET special glue is uniformly coated on the contact surface of the spigot mouth, the inner clamping ring of the bell mouth is heated to be softened, bell mouth connection is carried out at the moment, the spigot mouth convex ring with the diameter larger than the inner diameter of the spigot mouth clamping ring can be inserted into the bell mouth clamping groove, after the cooling of the spigot mouth clamping ring, the diameter is restored to be smaller than the outer diameter clamping ring of the spigot mouth convex ring before heating, and the bell mouth and the spigot mouth can not be pulled out again. The joint surfaces of the bell mouth and the spigot are tightly matched, and after the glue is solidified, a two-in-one PET combined floating ball is formed.
2. The invention relates to a PET combined floating ball, which takes three as an example to design a PET hollow cylinder with two open ends, the PET hollow cylinder is placed in the middle, two PET cylinders with two open ends are arranged at the two ends, the cylinder mouth is opposite to the cylinder mouth of the middle cylinder, a socket connection mouth matched with the PET hollow cylinder is also designed, the socket snap ring is heated and softened, glue is uniformly smeared outside the socket mouth, and the two hollow cylinders at the two ends are extruded towards the middle to enable the three hollow PET cylinders to be combined into a three-in-one PET combined floating ball. The method for assembling more than three PET combined floating balls only increases the number of hollow cylinders with openings at two ends, designs a socket connection mode, and combines the hollow cylinders together by adopting the same socket connection mode to form an integral trinity or multi-position integral PET combined floating ball.
3. The PET combined floating ball is manufactured by adopting PET polyester plastic with the elastic modulus (4000 Mpa) being four times that of HDPE (900 Mpa), and the ring stiffness of the PET combined floating ball is improved by a plurality of times; the density (1.46 g/ml) of the PET plastic after blow molding is 1.53 times of that of the HDPE plastic (0.95 g/ml), the water seepage is avoided, and the water seepage defect of the HDPE floating ball is solved. The annular corrugation depth is the same as that of the HDPE floating ball, the annular rigidity is improved by a plurality of times, and the annular rigidity per square meter is ensured to be more than 4KN per square meter; each PET combined floating ball is additionally provided with two radial supporting barrel shoulders compared with the traditional HDPE blow molding floating ball, so that the ring stiffness of the floating ball is greatly improved, and the collapse and deformation are avoided in the using process; the ageing resistance of PET plastic is higher than that of polyolefin plastic such as HDPE, and the service life of the PET plastic is far longer than that of the existing HDPE hollow blow molding floating ball.
Drawings
In order to more clearly illustrate the technical solutions in the prior art or in the embodiments of the present invention, the following brief description is given of the drawings used in the description of the prior art or the embodiments.
Fig. 1 is a schematic view of the structure of the mouthpiece tub of the present invention.
Fig. 2 is an enlarged schematic view of the structure of the portion a in fig. 1.
Fig. 3 is a cross-sectional view of fig. 1.
Fig. 4 is a schematic structural view of the socket tub of the present invention.
Fig. 5 is an enlarged schematic view of the structure of the portion B in fig. 4.
Fig. 6 is a cross-sectional view of fig. 4.
Fig. 7 is a schematic view of the combined structure of fig. 1 and 4.
Fig. 8 is an enlarged schematic view of the structure of the portion C in fig. 7.
Fig. 9 is a schematic view of the structure of fig. 7 with a cladding added.
Fig. 10 is an enlarged schematic view of the structure of the portion D in fig. 9.
Fig. 11 is a combination diagram of a structural form of an annular glue groove.
Fig. 12 is an enlarged schematic view of the structure of the portion E in fig. 11.
Fig. 13 is a schematic structural view of the mouthpiece tub, the socket tub, and the both-end opening tub after being connected.
Fig. 14 is a schematic view of the structure of fig. 13 after coating the coating layer.
Fig. 15 is a schematic structural view of a square cross-section mouthpiece tub and a socket tub after being connected.
Fig. 16 is a cross-sectional view of the mouthpiece tub of fig. 15.
Fig. 17 is a schematic view of a structure in which a bell barrel and a spigot barrel are circularly formed in a plane.
Fig. 18 is a cross-sectional view of the mouthpiece tub of fig. 17.
Fig. 19 is a schematic structural view of a tub with both ends opened and having a circular cross section.
Fig. 20 is a cross-sectional view of fig. 19.
Fig. 21 is a schematic view of a two-end opening tub having a circular cross section and taking a plane.
Fig. 22 is a cross-sectional view of fig. 21.
Fig. 23 is a schematic structural view of a double-ended open tub having a square cross section.
Fig. 24 is a cross-sectional view of fig. 23.
Reference numerals: 1. a socket barrel; 11. a butt joint socket; 12. an annular clamping groove; 13.a first connection surface; 14. an annular clasp; 2. a jack barrel; 21. a docking socket; 22. an annular convex ring; 23. a second connection surface; 3. barrels with two open ends; 4. an annular glue containing groove; 5. an annular groove; 6. a seal ring; 7, corrugation; 8. and a coating layer.
Detailed Description
The technical scheme of the invention is described in detail below with reference to the attached drawings.
Example 1
The present embodiment provides a PET combined floating ball, as shown in fig. 1, 4 and 7, including: a socket tub 1 having a docking socket 11; a socket barrel 2 having a docking socket 21 fittingly inserted into the inside of the docking socket 11; a socket connection structure for connecting the butt joint bell 11 and the butt joint spigot 21 to form a hollow closed floating ball between the bell barrel 1 and the spigot barrel 2; the socket barrel 1 is made of PET, and the spigot barrel 2 is made of PET.
In this embodiment, the cross section of the socket tub 1 is circular, and the cross section of the socket tub 2 is also circular, as shown in fig. 3 and 6. The docking socket 11 and the docking spigot 21 are both blow molded process ports.
As a variant, the cross section of the mouthpiece tub 1 or the socket tub 2 may be square (as shown in fig. 15 and 16) or circular in a planar configuration (as shown in fig. 17 and 18).
The PET combined floating ball of the embodiment comprises a bell barrel 1 and a spigot barrel 2, wherein the bell barrel 1 is provided with a butt joint bell 11, the spigot barrel 2 is provided with a butt joint spigot 21 which can be inserted into the butt joint bell 11 in a matched manner, and the butt joint bell 11 and the butt joint spigot 21 are connected in a spigot-and-socket connection mode through a spigot-and-socket connection structure, so that the bell barrel 1 and the spigot barrel 2 form a closed integral hollow floating ball; according to the technical scheme, the bellmouth barrel 1 and the spigot barrel 2 made of PET materials are innovatively connected through the socket structure, the volume of the floating ball is increased to the greatest extent, the technical problem that the existing PET forming equipment is difficult to produce the floating ball exceeding 200 liters is solved, the requirement that the volume of the water fishery net cage floating ball reaches 250 liters is met, two barrel shoulders close to the position of the butt joint are used for forming two radial supporting structures at the middle position of the floating ball, the ring stiffness of the floating ball is greatly improved, and the non-collapsing deformation in the use process is guaranteed.
The socket connection structure includes: a first mating connection structure provided on an inner wall of the docking socket 11; a second mating connection structure provided on an outer wall of the docking receptacle 21; when the docking socket 21 is inserted into the docking socket 11, the second matching connection structure is matched and socket-connected with the first matching connection structure, so that the sealing floating ball with two functions is realized.
In this embodiment, as shown in fig. 2, 5 and 8, the first mating connection structure is an annular clamping groove 12 disposed on the inner wall of the docking socket 11; the second mating connection is an annular collar 22 provided on the outer wall of the docking receptacle 21. When the butt joint bell mouth 11 and the butt joint spigot 21 are matched and connected in a socket joint manner, the annular convex ring 22 penetrates through the annular clamping ring 14 after being heated and softened to reach the inside of the annular clamping groove 12, the inner diameter of the annular clamping ring 14 is restored to the original size after being cooled, the outer diameter of the annular convex ring 22 is attached to the inner wall of the annular clamping groove 12, the inner diameter of the annular clamping ring 14 is smaller than the outer diameter of the annular convex ring, at the moment, the butt joint bell mouth 11 and the butt joint spigot 21 cannot be separated, thermal expansion insertion cooling shrinkage buckle connection is realized, and two barrels are combined into one.
The socket connection structure further includes an adhesive layer applied between the first mating connection structure and the second mating connection structure. The adhesive layer bonds the inner wall of the butt joint socket 11 and the outer wall of the butt joint socket 21 into a whole, and the drip is not leaked, and the special glue for PET is used in the embodiment.
Preferably, an annular clamping ring 14 is arranged on the outer side of the annular clamping groove 12, and the inner diameter of the annular clamping ring 14 is smaller than the outer diameter of the annular convex ring 22. The butt joint socket 11 and the butt joint spigot 21 cannot be connected in a socket joint at normal temperature, and only if the butt joint socket 11 of the socket barrel 1 is heated to be softened, the annular convex ring 22 of the butt joint spigot 21 can be pushed into the annular clamping groove 12 of the butt joint socket 11. After cooling, the annular snap ring 14 of the butt joint socket 11 is contracted, the inner diameter is reduced, the inner diameter is smaller than the outer diameter of the annular convex ring 22, and the two barrels cannot be separated. And PET special glue is coated between the butt joint bell mouth 11 and the butt joint spigot 21, after the glue is solidified, the tightness of connection is improved, the firmness of connection is also improved to a certain extent, and the good sealing, no water inflow and firm connection after the bell and spigot connection are ensured.
The technical scheme of the embodiment skillfully utilizes the memory property of plastic, heats and softens the annular clamping ring 14 of the bell barrel 1 with the diameter smaller than the annular convex ring 22 of the socket barrel 2, and returns to the original diameter size after socket connection is completed by normal-temperature cooling, so that the two barrels are combined into one.
As shown in fig. 8, the connection structure further includes: a first connection surface 13 provided on an inner wall of the docking socket 11; a second connection surface 23 provided on an outer wall of the docking socket 21; after the second docking socket 21 is inserted into the docking socket 11, the first connecting surface 13 is opposite to and closely matched with the second connecting surface 23, and is connected by glue adhesion. The first connection surface 13 and the second connection surface 23 are further provided and connected using glue for the purpose of improving sealability, ensuring that no water can enter the tub from the connection position.
In this embodiment, the first connection surface 13 is disposed between the annular clamping groove 12 and the barrel body; the second connection surface 23 is disposed on a side of the annular collar 22 remote from the bowl.
As a variant, as shown in fig. 12, the second connecting surface 23 is provided with an annular adhesive groove 4. When the first connecting surface 13 and/or the second connecting surface 23 are/is glued, a part of glue can be reserved in the annular glue containing groove 4, so that at least the position of the annular glue containing groove 4 is ensured, a complete annular glue seal is formed, and the phenomenon of untight seal caused by uneven gluing is avoided.
As a variant, the annular glue groove 4 can also be provided on the first connection surface 13 or on both the first connection surface 13 and the second connection surface 23.
As another sealing scheme, the socket connection structure includes: an annular groove 5 provided on said first connection face 13 and/or said second connection face 23; and a sealing ring 6 is arranged inside the annular groove 5. The sealing ring is adopted, so that the sealing waterproof performance is further improved.
As shown in fig. 1 and 4, the outer wall of the bell barrel 1 or the spigot barrel 2 is provided with a ripple 7 in a surrounding manner, so that the ring rigidity is further improved.
According to the technical scheme, the problems of low strength, oxygen permeation, water permeation and the like caused by the existing HDPE plastic hollow blow molding floating ball can be effectively solved, the overall quality of the floating ball is remarkably improved, and the requirements of fishery cage culture on the safety and long-term use of the plastic floating ball are met.
Example 2
This embodiment provides a PET combined floating ball, referring to fig. 13, comprising: two bellmouth barrels 1 are provided with butt-joint bellmouths 11; the barrels 3 with two open ends are provided with two butt joint sockets 21 which can be respectively inserted into the butt joint sockets 11 in a matching way and are arranged between the two socket barrels 1; the socket connection structure is used for connecting the butt joint bell mouth 11 and the butt joint spigot 21, so that the bell mouth barrel 1, the barrels 3 with two openings at the two ends and the bell mouth barrel 1 are connected end to form a hollow closed floating ball; the bellmouth barrel 1 and the barrels 3 with openings at two ends are made of PET materials.
The docking socket 11, the docking socket 21, and the connection structure in this embodiment are the same as those in embodiment 1, and will not be described here again.
The PET combined floating ball can meet the requirement that the length of the floating ball needs to be three barrel bodies, and in addition, two identical butt joint sockets 21 are arranged on the barrel 3 with the openings at the two ends, so that the production process can be simplified.
As a variant, reference is likewise made to fig. 13: the PET combined floating ball of the present embodiment may include:
The socket barrels 2 are two in number and are provided with butt-joint sockets 21; a tub 3 having both ends opened, having two docking sockets 11 respectively insertable into the docking sockets 21, disposed between the two socket tub 2; the socket connection structure is used for connecting the butt joint bell mouth 11 with the butt joint spigot 21, so that the spigot barrel 2, the barrels 3 with two open ends and the spigot barrel 2 are connected end to form a hollow closed floating ball.
The cross section of the tub 3 with two ends open may or may not correspond to the tub 1 or the tub 2 with a socket, as shown in fig. 19 and 20, and the cross section of the tub 3 with two ends open may be circular, as shown in fig. 23 and 24, or may be square, as shown in fig. 21 and 22, or may be circular, so as to meet different use requirements.
Example 3
This embodiment provides a PET combined floating ball, as shown in fig. 13, comprising: a socket tub 1 having a docking socket 11; a socket barrel 2 having a docking socket 21 fittingly inserted into the inside of the docking socket 11; at least one barrel 3 with two open ends is arranged between the bell barrel 1 and the spigot barrel 2 and is provided with a butt joint bell 11 and a butt joint spigot 21; the socket connection structure is used for connecting the butt joint bell mouth 11 and the butt joint spigot 21, so that the bell mouth barrel 1, at least one barrel 3 with two open ends and the spigot barrel 2 are connected end to form a hollow closed floating ball; the barrel 3 with the two open ends is made of PET.
The structural design of the embodiment can flexibly select the number of the barrels 3 with the two ends open according to the needs, thereby meeting the requirements of different use positions on the length of the floating ball.
The cross-sectional shape of the tub 3 with both ends opened may or may not correspond to the tub 1 with the tub 2 with the socket, as shown in fig. 19 and 20, square (as shown in fig. 23 and 24) or circular (as shown in fig. 21 and 22) cut by a straight line, thereby satisfying different use requirements.
Example 4
The embodiment provides a coated floating ball, which comprises a PET combined floating ball and a coating layer 8 coated outside the PET combined floating ball, wherein the PET combined floating ball is any one of the PET combined floating balls in the embodiment 1, the embodiment 2 or the embodiment 3.
The coated floating ball of the embodiment has all advantages brought by adopting the PET combined floating ball structure because of adopting the PET combined floating ball structure.
Example 5
The embodiment provides a coated floating ball, as shown in fig. 9-10 and fig. 14, which comprises a PET combined floating ball and a coating layer 8 coated on part or all of the side walls of the PET combined floating ball, wherein the PET combined floating ball is the PET combined floating ball in any one of embodiments 1, 2 or 3.
The coated floating ball of the embodiment has all advantages brought by adopting the PET combined floating ball structure because of adopting the PET combined floating ball structure.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.