toy water balloon

Abstract

To provide a toy water balloon.SOLUTION: Each petal 12 includes a main body portion 16 and an annular edge portion 18 extending inward from the peripheral edge of the main body portion 16, each annular edge portion 18 comprising a magnet member, wherein the coupling portion 14 is capable of changing between an extended state and a bent state such that the petals 12 can switch between an expanded state and a closed state, wherein when the petals 12 are in the closed state, the petals 12 collectively define a water-holding cavity, wherein the magnet members on the petals 12 attract each other to bring the annular edge portions 18 of the petals 12 together to form a water-blocking layer to seal the water-holding cavity, and wherein the annular edge portions 18 extend into the water-holding cavity. Since the toy water balloon can be repeatedly opened and closed by providing the magnet member, the toy water balloon is reusable, clean and environment-friendly, and the toy water balloon can be filled with water without requiring a water source of a specific pressure, can be used in various scenes, and has high applicability.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to the field of entertainment toys, and in particular to toy water balloons. [Background technology]

[0002] As the weather gets hotter, water-based toys have become popular, offering a cooling and fun experience like water guns. However, the high water pressure of water guns can easily injure people, especially their eyes. Currently, there are water balloon fights, in which players throw water-filled balloons at their opponents. The opponents who are hit try to avoid the flying water balloons, as they are eliminated if the balloons burst and get wet. This game is a cool, fun, and safe way to beat the heat.

[0003] However, the water balloons currently used in water balloon fights are disposable balloons that cannot be reused after breaking, and using large quantities of them can easily cause environmental pollution. Second, these water balloons require water to be pumped into them under pressure, which requires access to a tap. Many people enjoy playing in watery areas such as suburban lawns, seaside areas, and riversides, but because it is difficult to inflate them by directly pumping water at normal atmospheric pressure, natural water sources lack sufficient water pressure, making it difficult to inflate water balloons on-site, limiting the play environment. Summary of the Invention [Problem to be solved by the invention]

[0004] According to various embodiments of the present application, a reusable, versatile toy water balloon is provided. [Means for solving the problem]

[0005] A toy water balloon comprising a pair of petals and a connecting portion connecting the petals, each of the petals comprising a main body and an annular edge extending inward from the periphery of the main body, each of the annular edges having a magnetic member attached thereto, and when the petals are in a closed state, the petals jointly define a cavity for storing water, and the magnetic members on the petals attract each other, forcing the annular edges of the petals together to form a water-blocking layer and seal the cavity for storing water, and the annular edges extend into the cavity for storing water.

[0006] In some embodiments, each of the annular edges is elastic, and when the petals are in a closed state, the magnetic attraction force generated by the magnet member causes the annular edges of the petals to deform toward each other and fit tightly together.

[0007] In some embodiments, the petals are deformed as the two annular edges interfere with each other in the thickness direction during the process of switching to the closed state due to the action of the magnetic attraction force.

[0008] In some embodiments, each of the annular edges has a bonding surface for bonding with the other annular edge, and the bonding surface of at least one of the annular edges is concave or convex in its natural state, and the concave or convex surface is deformed toward the other annular edge due to the action of the magnetic attraction force generated by the magnet member.

[0009] In some embodiments, the mating surface of each annular edge is naturally concave; or the mating surface of one of the annular rims is naturally concave, and the mating surface of the other annular rim is naturally flat; or the mating surface of one of the annular rims is naturally convex and the mating surface of the other annular rim is naturally concave; or The mating surface of one of the annular edge portions is convex in its natural state, and the mating surface of the other annular edge portion is flat in its natural state.

[0010] In some embodiments, at least one of the annular edge portions comprises an annular body connected to a corresponding main body portion and a flange extending diagonally inward from the circumferential inner side of the annular body, the flange being located laterally inward of the corresponding magnet member, the surface of the annular body and the surface of the flange forming a joining surface of the annular edge portion, and the flange abutting against the other annular edge portion and deforming due to the action of the magnetic attraction force generated by the magnet member.

[0011] In some embodiments, a flange extending diagonally inward is provided on the circumferential inner side of one of the annular edge portions, and a notch corresponding to the flange is provided on the circumferential inner side of the other annular edge portion, and when the petals are in a closed state, the flange extends into the notch and is tightly fitted to the inner wall of the notch by the action of the magnetic attraction force generated by the magnet member.

[0012] In some embodiments, the flange is provided with a mating surface for mating with the inner wall of the notch, and the inclination angle of the mating surface of the flange relative to the central axis of the corresponding annular edge is smaller than the inclination angle of the inner wall of the notch relative to the central axis of the corresponding annular edge.

[0013] In some embodiments, each of the annular edges has a mating surface for mating with the other annular edge, and the mating surface of one of the annular edges is provided with an annular protrusion, and the mating surface of the other annular edge is flat in its natural state. When the petals are in a closed state, the magnetic attraction force generated by the magnet member causes the annular protrusion to press against the mating surface of the other annular edge, forming an annular groove on the mating surface of the other annular edge, and the annular protrusion and the inner wall of the annular groove fit tightly together.

[0014] In some embodiments, each of the annular edges comprises a first layer and a second layer, the first layer extending integrally from the periphery of the main body, the second layer being stacked on the first layer, and the magnet member being provided on the second layer.

[0015] In some embodiments, the thickness of the second layer is greater than the thickness of the first layer.

[0016] In some embodiments, the softness of the second layer is greater than the softness of the main body portion, for example, the softness of the second layer is in the range of 50-60 degrees and the softness of the main body portion is in the range of 30-40 degrees, the lower the softness, the softer the material.

[0017] In some embodiments, the connector is integrally formed with the second layer of the two annular edges, and the thickness of the connector is less than the thickness of the second layer.

[0018] In some embodiments, the thickness of the annular edge of each petal is greater than the thickness of the body portion.

[0019] In some embodiments, the body portions of a pair of said petals are symmetrical about the centerline of said connector.

[0020] In some embodiments, the connectors can change between extended and bent states to accommodate the expanded and closed states of the petals, and when the petals are in the closed state, the connectors bend in a C- or U-shape and protrude from the outer surface of the petals.

[0021] In some embodiments, each of the annular edges has a mating surface for mating with the other annular edge, the magnetic member has a plurality of magnets arranged at intervals, and the magnetic flux density of the mating surface corresponding to the center position of the magnet is 130MT to 260MT.

[0022] In some embodiments, each of the annular edges has a plurality of grooves for accommodating the magnets, and an adhesive layer is provided between the magnets and the groove walls of the grooves. Each of the annular edges is integrally molded around the magnets by injection molding or hot press molding, encasing the magnets. This arrangement strengthens the bond between the magnets and the annular edges. Even if the magnets and the annular edges are partially loosened, the adhesive layer prevents the magnets from falling off the edges of the water balloon, improving safety in use. [Effects of the Invention]

[0023] The toy water balloon of the present invention has a magnetic member attached to the annular edge, which allows the petals to close through the magnetic cooperation of the magnetic member. When the closed toy water balloon is impacted and deformed, the water pressure inside the toy water balloon changes, causing the magnetic member to release the magnetic cooperation and separate the petals. The provision of the magnetic member allows the toy water balloon to be opened and closed repeatedly, making it reusable, clean, and environmentally friendly. The toy water balloon can be filled with water by filling the two petals with water and then closing them using the magnetic member. Water can be poured into the toy water balloon without requiring a water source of specific pressure, making it suitable for use in a variety of situations and highly applicable.

[0024] To better illustrate and explain the embodiments and / or examples of those inventions disclosed herein, reference may be made to one or more drawings. Additional details or examples used to illustrate the drawings should not be construed as limiting the scope of any of the disclosed inventions, presently depicted embodiments and / or examples, and best modes of those inventions as currently understood. [Brief explanation of the drawings]

[0025] [Figure 1] 1 is a schematic diagram of an example of a toy water balloon according to Example 1 of the present invention in a closed state. [Figure 2]2 is a schematic diagram of an example of the toy water balloon shown in FIG. 1 in an expanded state. [Figure 3] 3 is a cross-sectional view of the toy water balloon shown in FIG. 2 cut along the central axis R. FIG. [Figure 4] FIG. 2 is an example of a cross-sectional view of the toy water balloon shown in FIG. [Figure 5] 5 is an example of a partially enlarged view of a portion A in FIG. 4. [Figure 6] FIG. 6 is a schematic diagram of an example of the two petals shown in FIG. 5 when they are closed. [Figure 7] 10 is an example of a partial cross-sectional view of two petals about to close according to another embodiment of the present invention. [Figure 8] FIG. 8 is an example of a schematic diagram of the two petals shown in FIG. 7 after they have closed. [Figure 9] 10 is a schematic diagram of a toy water balloon according to a second embodiment of the present invention in an expanded state. FIG. [Figure 10] FIG. 10 is an example of a cross-sectional view of the toy water balloon shown in FIG. [Figure 11] 10 is an example of a cross-sectional view of the toy water balloon shown in FIG. 9 in a closed state. [Figure 12] 12 is an example of a partially enlarged view of a portion B in FIG. 11. [Figure 13] FIG. 13 is a schematic diagram of the two annular edges of FIG. 12 when they are joined. [Figure 14] FIG. 10 is a schematic diagram illustrating an example of a toy water balloon according to a third embodiment of the present invention in an expanded state. [Figure 15] FIG. 15 is an example of a cross-sectional view of the toy water balloon shown in FIG. [Figure 16] FIG. 15 is an example of a cross-sectional view of the toy water balloon shown in FIG. 14 when it is about to close. [Figure 17] 17 is an example of a cross-sectional view of the toy water balloon shown in FIG. 16 in a closed state. [Figure 18] 18 is an example of a partially enlarged view of a portion C in FIG. 17. [Figure 19] FIG. 10 is a schematic diagram illustrating an example of a toy water balloon according to a fourth embodiment of the present invention in an expanded state. [Figure 20] FIG. 20 is a schematic diagram of the toy water balloon shown in FIG. 19 in a closed state. [Figure 21] FIG. 10 is a schematic diagram illustrating an example of a toy water balloon according to a fifth embodiment of the present invention in an expanded state. [Figure 22] 22 is a schematic diagram of an example of the toy water balloon shown in FIG. 21 in a closed state. DETAILED DESCRIPTION OF THE INVENTION

[0026] To facilitate understanding of the present invention, the present invention will be described in more detail below. However, the present invention may be embodied in many different forms and is not limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more complete and thorough understanding of the present disclosure.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the specification of the present invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the present invention. [Example]

[0028] 1 to 6 show a toy water balloon according to a first embodiment of the present invention, which is used as a toy for playing games or entertainment by being thrown. The toy water balloon has a closed state and an expanded state. After the toy water balloon is placed in water and filled with water, it returns to the closed state, forming a cavity for storing sealed water. When the toy water balloon hits a human body, the ground, or a hard object during a game, the toy water balloon is compressed, bursts, and expands, splashing out the water stored therein, thereby achieving the objective of the game.

[0029] Specifically, referring to Figures 1 to 6, the toy water balloon 10 of Example 1 of the present invention comprises a pair of petals 12 and a connecting portion 14 connecting the petals 12, and each petal 12 comprises a main body portion (also called a water bag or water storage device) 16 and an annular edge portion 18 extending laterally inward (i.e., away from the periphery of the main body portion 16) from the periphery of the main body portion 16 (i.e., the annular edge portion 18 extends inward from the outer edge on the periphery of the main body portion 16 (in the direction indicated by arrow C in Figure 2) and beyond the inner surface of the main body portion 16), and each annular edge portion 18 is attached with a magnet member 20, and the connecting portion 14 can be bent between an extended state and a bent state so that the petals 12 can be switched between a closed state and an unfolded state. When the two petals 12 are in a closed state, the two petals 12 jointly define a cavity 22 for storing water, and as the magnetic members 20 on the two petals 12 attract each other, the annular edges 18 of the two petals 12 are deformed and pressed together to form a water-blocking layer that seals the cavity 22. The annular edges 18 extend laterally into the cavity 22 for storing water, and water on both sides of the annular edges 18 in the thickness direction within the cavity 22 for storing water applies pressures F1 and F2 to the annular edges 18 from two opposite directions, further pressing the annular edges 18 of the two petals 12 together and improving the sealing and waterproofing effect. To use the toy water balloon 10, the two petals 12 are first placed in an unfolded state and filled with water. Then, the magnetic members 20 on the annular edge 18 magnetically cooperate to close the two petals 12 and prevent the water in the water-retaining cavity 22 from spilling out. When the closed toy water balloon 10 hits a human body, the toy water balloon 10 deforms, and the internal water pressure causes the magnetic members 20 on the two petals 12 to break away from their magnetic cooperation, separating the two petals 12 and causing the water inside the toy water balloon 10 to splash out, creating a game effect. The magnetic cooperation of the magnetic members 20 allows the toy water balloon 10 to be repeatedly switched between a closed state and an unfolded state, making the toy water balloon 10 reusable, clean, and environmentally friendly. The toy water balloon 10 can be filled with water without requiring a specific pressurized water source, making it suitable for a variety of uses and highly applicable.

[0030] The specific shape of the toy water balloon 10 is not limited to a sphere, an oval sphere, an irregular sphere, the shape of a character, etc., as long as it can store water when closed. In this embodiment, the two petals 12 are both hemispherical shells, the main bodies 16 of the two petals 12 are symmetrical with respect to the center line of the connecting part 14, the annular edges 18 of the two petals 12 extend radially inward, and the outer diameters of the annular edges 18 of the two petals 12 are substantially equal, so that when the two petals 12 are closed, they form a spherical toy water balloon 10.

[0031] 5 and 6, in Example 1, each annular edge 18 is an elastic body that can be elastically deformed, and when the petals 12 are in a closed state, the annular edge 18 of the petals 12 is deformed and tightly fitted by the action of the magnetic attraction force generated by the magnet member 20. The annular edge 18 is deformable, and as the two petals 12 approach each other due to the action of the magnet member 20, the annular edge 18 is deformed, and after the annular edge 18 is deformed, an elastic restoring force is generated, which tightly fits the two annular edge 18 together, thereby achieving a good sealing effect.

[0032] Specifically, when the petal-shaped body 12 switches to a closed state due to the action of the magnetic attraction force generated by the magnet member 20, the two annular edge portions 18 interfere with each other in the thickness direction and deform in the thickness direction, thereby tightly fastening the two annular edge portions 18 together.

[0033] The specific material of the annular edge portion 18 is not particularly limited as long as it is elastic and deformable, such as silicone.

[0034] The material of the body portion 16 may be the same as or different from that of the annular rim 18; for example, the body portion 16 may be made from a thin, flexible sheet such as silicone. If the body portion 16 and the annular rim 18 are both silicone, the body portion 16 may be integrally molded with all or part of the annular rim 18.

[0035] The thickness h1 of the annular edge 18 of each petal-shaped body 12 is greater than the thickness h2 of the main body 16, and the thickness h2 of the main body 16 is preferably in the range of 0.2 to 1 mm, for example, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, etc. The main body 16 is relatively thin, which can reduce pain when the toy water balloon 10 hits the human body, and providing a relatively thick annular edge 18 on the thin main body 16 makes it convenient to attach the magnet member 20.

[0036] It will be appreciated that in some embodiments, the body portion 16 has a uniform thickness, but in other embodiments, the body portion 16 can have a non-uniform thickness, i.e., some areas can be thicker and some areas can be thinner, in which case the thickness h2 of the body portion refers to the thickness at its smallest thickness.

[0037] The thickness h1 of the annular edge portion 18 is preferably in the range of 2.5 to 5 mm, for example, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, or 5 mm.

[0038] In this embodiment, the magnet member uses a plurality of magnets spaced apart, and the length of the magnets (along the circumferential / longitudinal direction of the petals) is preferably in the range of 5 to 15 mm, such as 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, etc. The width (along the radial / lateral direction of the petals) is preferably in the range of 1 to 3 mm, such as 1 mm, 1.5 mm, 2 mm, 2.5 mm, or 3 mm, etc. The height (along the thickness direction of the edge) is preferably in the range of 1 to 3 mm, such as 1 mm, 1.5 mm, 2 mm, 2.5 mm, or 3 mm, etc. In this embodiment, the magnets are permanent magnets. If the magnetic flux density of the magnets is too low, the attractive force between the magnets will be too weak, causing the water balloon to open before reaching its target, leaking water into the air. Increasing the number of magnets inevitably reduces the spacing between the magnets (children's toy water balloons must not be too large; otherwise, children will be unable to hold them in their hands, limiting the overall size of the water balloon). This affects the deformation of the bonding surfaces and the sealing effect of the water balloon. If the magnetic flux density is too high, the attractive force between the magnets will be too strong, making the water balloon difficult to open. If the water balloon hits a child while playing, it will be more painful and more likely to injure the child. Consideration must be given to both the deformability of the edges and the magnetic attraction force between the two bonding surfaces (which should not be too large or too small). After extensive research, the inventors of this application have found a preferred range of magnetic flux density: the magnetic flux density of the bonding surface corresponding to the center of the magnets should preferably be between 130 MT and 260 MT (millitesla), which fully satisfies the requirements for deformation ability and magnetic attraction force.

[0039] Each annular edge 18 has a joining surface 24 for joining with the other annular edge 18, and when the toy water balloon 10 is closed, the joining surfaces 24 of the two annular edge portions 18 join together. The joining surface 24 of at least one annular edge portion 18 is naturally concave or convex, and the magnetic attraction force generated by the magnet member 20 causes the concave or convex surface to deform toward the other annular edge portion 18, and the two joining surfaces 24 join together due to the action of the magnet member 20, creating a seal and preventing water leakage.

[0040] Specifically, the mating surface 24 of at least one of the annular edges 18 is concave in its natural state, and when the magnet elements 20 on the two petals 12 are attracted to each other, the concave surface deforms toward the other annular edge 18 due to the magnetic attraction. The natural state refers to a state in which no external force is acting on the two annular edges 18, such as a state in which the two magnet elements 20 are not magnetically cooperating. When the magnet elements 20 on the two petals 12 are attracted to each other, the magnetic attraction force generated by the magnet elements 20 causes the two annular edges 18 to approach each other, deforming the concave surface. Finally, the two mating surfaces fit together to form a seal, preventing water leakage between the two annular edges 18 due to processing or assembly errors. This also reduces the requirement for precision, making the manufacturing process easier.

[0041] Specifically, in this embodiment, the mating surface 24 of one annular edge portion 18 is concave in its natural state, and the mating surface 24 of the other annular edge portion 18 is flat in its natural state, and the concave surface deforms toward the flat surface of the other annular edge portion 18 and fits tightly therewith due to the magnetic attraction force generated by the magnet member 20. When the petals 12 are in a closed state, the concave annular edge portion 18 deforms due to the magnetic attraction force, and the concave surface deforms into a flat surface so as to fit tightly with the flat surface of the other annular edge portion 18. Because flat surfaces are relatively easier to manufacture than concave surfaces, making one mating surface 24 concave and the other mating surface 24 flat can improve the sealing effect while reducing the difficulty of manufacturing.

[0042] The specific method for forming the concave surface is not particularly limited, but for example, the central portion of the joining surface 24 of the annular edge portion 18 or the entire joining surface 24 may be recessed to form an arcuate surface, or the concave surface may be defined by multiple non-coplanar flat or curved surfaces.

[0043] In this embodiment, at least one of the annular edge portions 18 comprises an annular body 26 connected to the corresponding main body portion 16 and a flange 28 extending obliquely inward from the circumferential inner side of the annular body 26, the flange 28 being located laterally inner of the corresponding magnet member 20 and being deformable, i.e., the flange 28 being located inside the magnet member 20 in the lateral direction R of the main body portion 12, the outer surface of the annular body 26 and the outer surface of the flange 28 forming a mating surface, i.e., a concave surface, of the annular edge portion 18, and the flange 28 abuts against the other annular edge portion 18 due to the action of the magnetic attraction force generated by the magnet member 20, i.e., interference, causing deformation. Specifically, in this embodiment, one annular edge portion 18 comprises an annular body 26 and a flange 28, and the annular body 26 and the flange 28 are arranged at an included angle, and the included angle between the annular body 26 and the flange 28 is greater than 90° and less than 180°, i.e., the included angle between the straight portion and the inclined portion of the concave surface is greater than 90° and less than 180°. The mating surface 24 of the other annular edge 18 is flat in its natural state. When the two petals 12 approach each other due to the action of the magnet 20, the flange 28 of the annular edge 18 abuts against the other annular edge 18. The magnetic attraction force generated by the magnet 20 causes the flange 28 to deform, changing from an inclined state to a straight state. Finally, the surface of the flange 28 is positioned flush with the surface of the annular body 26, forming a completely flat surface, and mating with the mating surface 24 of the other annular edge 18. At this time, the flange 28 abuts against the other annular edge 18 due to its own elasticity, enhancing the sealing effect. The thickness of the flange 28 gradually decreases in the direction away from the main body, and is smaller than the thickness of the annular body 26. Preferably, the thickness of the flange 28 is in the range of 0.3 to 0.43 mm, and the thickness of the annular body 26 is the thickness of the annular edge 18.

[0044] As shown in Figures 7 and 8, in another embodiment, the mating surfaces 24 of the two annular edges 18 are concave in their natural state, i.e., each of the annular edges 18 has an annular body 26 and a flange 28, and when the two petals 12 approach each other due to the action of the magnet member 20, the two flanges 28 abut and are deformed by the action of the magnet member 20, and the two flanges 28 change from an inclined state to a straight state, and finally the surfaces of the flanges 28 are positioned flush with the surfaces of the corresponding annular bodies 26 to form a completely flat surface and are tightly fitted together.

[0045] As shown in Figure 5, in Example 1, the annular edge portion 18 comprises a first layer 30 and a second layer 32, the first layer 30 extends integrally from the periphery of the main body portion 16, i.e., the first layer 30 is molded integrally with the main body portion 16 and extends laterally inward from the periphery of the main body portion 16, the second layer 32 is laminated on the side of the first layer 30 opposite the main body portion 16, an accommodation groove is provided in the second layer 32, the magnet member 20 is provided in the accommodation groove of the second layer 32, the bonding surface 24 is located on the side of the second layer 32 opposite the first layer 30, and the second layer 32 of one annular edge portion 18 comprises an annular body 26 and a flange 28. During assembly, the magnet member 20, such as a magnet, is first fixed in the mounting groove / hole of the second layer 32 (the magnet can be directly fixed therein when the second layer 32 is formed, for example, by injection molding), and then the body portion 16 and the first layer 30 are integrally molded over the second layer and the magnet by injection molding, and the first layer 30 is laminated on the second layer 32 to cover the mounting groove / hole of the magnet. In some embodiments, an adhesive layer is provided between the magnet and the groove wall of the accommodating groove, and the annular edge is integrally molded around the magnet by injection molding or hot press molding to encase the magnet therein; for example, before injection molding or hot press molding, adhesive is first applied to the magnet, and then the annular edge is integrally molded directly around the magnet, thereby forming an adhesive layer between the magnet and the groove wall of the accommodating groove of the annular edge. By installing it in this way, the bond between the magnet and the annular edge becomes stronger, and even if the magnet and the annular edge become partially loose during use, the presence of the adhesive layer makes it less likely for the magnet to fall off the edge of the water balloon, improving safety during use.

[0046] The specific method for fixing the first layer 30 and the second layer 32 together is not particularly limited, but for example, after the first layer 30 and the second layer 32 are each molded, an adhesive can be applied between the first layer 30 and the second layer 32 to bond and fix the first layer 30 and the second layer 32 together.

[0047] Preferably, the thickness of the second layer 32 is greater than the thickness of the first layer 30, and the magnet member 20 is attached to the second layer 32. The second layer 32 is relatively thick, which makes it easy to attach the magnet member 20. The thickness of the second layer 32 is preferably in the range of 1.5 to 2.2 mm, for example, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2.0 mm, 2.1 mm, 2.2 mm, or 2.3 mm, and the thickness of the first layer 30 is preferably in the range of 1.3 to 1.7 mm, for example, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, or 1.7 mm.

[0048] Preferably, the softness of the second layer 32 is greater than the softness of the first layer 30 and the main body 16. With this design, the main body 16 is soft, reducing pain when the toy water balloon 10 hits the human body, and the second layer 32 is hard, making it easier to fix the magnet member 20 therein. The softness of the second layer 32 is preferably in the range of 50 to 60 degrees (which falls into the category of medium softness), more preferably in the range of 54 to 56 degrees, for example, 55 degrees. The softness of the main body 16 is preferably in the range of 30 to 40 degrees, more preferably in the range of 34 to 36 degrees, for example, 35 degrees, with lower softness indicating softer materials.

[0049] 3, the specific type of the magnet member 20 is not particularly limited and may be, for example, a magnet attached to the annular rim 18. Alternatively, magnetic powder may be added to the raw material of the annular rim 18 before forming the annular rim 18, and then embedded in the annular rim 18 after forming the annular rim 18. In this embodiment, the magnet member 20 is a magnet, and a receiving groove is provided on the annular rim 18 to receive the magnet. Specifically, the receiving groove is provided on the side of the second layer 32 closer to the first layer 30, and fastens the second layer 32 and the first layer 30 together to prevent the magnet from falling off the annular rim 18.

[0050] The specific number of magnet members 20 on each annular edge portion 18 is not particularly limited and may be one or more. In this embodiment, multiple magnet members 20 are provided on each annular edge portion 18, and the numbers of magnet members 20 on two annular edge portions 18 are the same, and there is a one-to-one correspondence, with the multiple magnet members 20 on corresponding annular edge portions 18 being arranged at equal intervals along the circumferential direction of the annular edge portion 18.

[0051] 1 and 2, in the first embodiment, the connecting portion 14 is made of an elastic material and is bendable between an extended state and a bent state, i.e., the connecting portion 14 can be deformed to form different bending arcs, allowing the petals 12 to switch between an unfolded state and a closed state. The connecting portion 14 is used to connect two petals 12, and even if the toy water balloon 10 hits the human body and the two petals 12 are separated, the two petals 12 remain connected by the connecting portion 14, preventing the petals 12 from being lost and providing convenience for the user.

[0052] Both ends of the connecting portion 14 can be connected to two main bodies 16, respectively, or to two annular rims 18, respectively. Alternatively, one end of the connecting portion 14 can be connected to the main body 16 of one petal 12, and the other end can be connected to the annular rim 18 of the other petal 12. In this embodiment, both ends of the connecting portion 14 are solidified with two annular rims 18, respectively. Specifically, the connecting portion 14 is integrally formed with the second layer 32 of the two annular rims 18, and the thickness of the connecting portion 14 is smaller than the thickness of the second layer 32. The thickness of the connecting portion 14 is preferably in the range of 0.2 to 1 mm, for example, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, etc.

[0053] When the pair of petals 12 are in a closed state, the connecting portion 14 is bent into a C-shape or a U-shape and protrudes from the outer surface of the petals 12. In this embodiment, the connecting portion 14 is a flexible member, and when the toy water balloon 10 is in a closed state, the connecting portion 14 is bent into a C-shape or a U-shape. [Example]

[0054] Referring to Figures 9 to 13, a flange 28a extending diagonally inward is provided on the circumferentially inner side of one annular edge 18a of a toy water balloon 10a in Example 2 of the present invention, and a notch 36 corresponding to the flange 28a is provided on the circumferentially inner side of the other annular edge 18a.When the petal-shaped body 12a is in a closed state, the flange 28a extends into the notch 36 and fits tightly against the inner wall of the notch 36 due to the magnetic attraction force generated by the magnet member 20a, thereby providing a sealing effect.

[0055] In this embodiment, the flange 28a is made of an elastic material and is therefore deformable. The flange 28a has a mating surface for mating with the inner wall of the notch 36, and the inclination angle of the mating surface of the flange 28a relative to the central axis Z of the corresponding annular rim 18a is smaller than the inclination angle of the inner wall of the notch 36 relative to the central axis Z of the corresponding annular rim 18a. That is, the angle between the mating surface of the flange 28a and the central axis Z of the annular rim 18a is smaller than the angle between the inner wall of the notch 36 and the central axis Z of the annular rim 18a. Because the inclination of the flange 28a is smaller than the inclination of the notch 36, during the process of inserting the flange 28a into the notch 36, the inner wall of the notch 36 presses against the flange 28a, deforming the flange 28a, and ultimately bringing the mating surface of the flange 28a into tight contact with the inner wall of the notch 36. The flange 28a abuts against the other annular edge portion 18a by its own elastic force and fits tightly against the inner wall of the notch 36, improving the sealing effect between the two petal-shaped bodies 12a and preventing the problem of water leakage caused by the flange 28a not being able to fit tightly against the inner wall of the notch 36 due to processing or assembly errors, thereby reducing the requirement for precision and making the product easier to manufacture. [Example]

[0056] As shown in Figures 14 to 18, one of the joining surfaces of the two annular edges 18b of the toy water balloon 10b in Example 3 of the present invention is convex, and the other is flat in its natural state, and the flat surface is compressed by the convex surface due to the magnetic attraction force generated by the magnet member 20b, deforming into a concave shape and fitting tightly with the convex surface.

[0057] Specifically, an annular protrusion 38 is provided on the joining surface of one annular edge portion 18b, and this convex surface is located on the annular protrusion 38, while the joining surface of the other annular edge portion 18b is flat in its natural state. When the petals 12b are closed, the annular protrusion 38 presses against the joining surface of the other annular edge portion 18b due to the magnetic attraction force generated by the magnet member 20b, forming an annular groove 40 on the joining surface of the other annular edge portion 18b. At the same time, the annular protrusion 38 is also deformed by the action of the other annular edge portion 18b, so that the outer surface of the annular protrusion 38 is tightly fitted against the inner wall of the annular groove 40. At this time, the annular protrusion 38 exerts a sealing effect to prevent water leakage.

[0058] In another embodiment, one of the mating surfaces of the two annular edges may be convex and the other may be concave, and when the petals are in a closed state, the convex surface is deformed and tightly fitted to the concave surface by the action of the magnetic attraction force generated by the magnet member.

[0059] In the above embodiment, each petal is hemispherical in shape, and the toy water balloon is spherical in shape when closed.

[0060] It will be appreciated that in some embodiments, the toy water balloon may exhibit other irregular (non-spherical) configurations in the closed state. [Example]

[0061] 19 and 20, the toy water balloon 10c according to the fourth embodiment of the present invention has the shape of a character. Specifically, when the two petals 12c are closed, the toy water balloon 10c takes on the shape of a duck, giving the toy water balloon 10c a more cute appearance. In this embodiment, the two petals 12c are symmetrical about the midline of the connecting portion 14c, and each petal 12c itself has an asymmetric structure, with the annular edge of each petal 12c being non-circular. [Example]

[0062] 21 and 22, the toy water balloon 10d according to the fifth embodiment of the present invention has the shape of a character. Specifically, when the two petals 12d are closed, the toy water balloon 10d takes on the shape of a crab, giving the toy water balloon 10d a more cute appearance. In this embodiment, the two petals 12d are symmetrical about the midline of the connecting portion 14d, and each petal 12d itself has an asymmetric structure, with the annular edge of each petal 12d being non-circular.

[0063] It should be understood that the toy water balloon 10 of the present invention is not limited to storing water, but can also store other liquids suitable for people's entertainment and play, such as beer, milk, or other liquids that are harmless to the human body or are drinkable.

[0064] The above examples merely represent some embodiments of the present invention, and although the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the technical spirit of the present invention, and all such modifications and improvements fall within the scope of the present invention. Therefore, the scope of the present invention is determined based on the content specified in the accompanying utility model claims.

Claims

1. 1. A toy water balloon comprising a pair of petals and a connecting portion connecting the petals, each of the petals comprising a main body and an annular edge extending from the periphery of the main body toward the center, each of the annular edges comprising a magnetic member, when the petals are in a closed state, the petals jointly define a cavity for storing water, the magnetic members on the petals attract each other to press the annular edges of the petals together, forming a water-blocking layer and sealing the cavity for storing water, the annular edges extending into the cavity for storing water, each of the annular edges comprising a first layer and a second layer laminated along its thickness direction, the first layer extending integrally from the periphery of the main body toward the center, the second layer being laminated on the side of the first layer opposite the main body, and the magnetic member being provided on the second layer.

2. 2. The toy water balloon of claim 1, wherein each of the annular edges is made of an elastic material, and when the petals are in a closed state, the annular edges of the petals are deformed toward each other and tightly fitted together by the action of the magnetic attraction force generated by the magnet member.

3. 3. The toy water balloon according to claim 2, wherein the petals are deformed by interference between the two annular edges in the thickness direction during the process of switching to the closed state by the action of the magnetic attraction force.

4. The toy water balloon of any one of claims 1 to 3, characterized in that each of the annular edges has a bonding surface for bonding with the other annular edge, the bonding surface of at least one of the annular edges being concave or convex in its natural state, and the concave or convex surface being deformed toward the other annular edge by the action of the magnetic attraction force generated by the magnet member.

5. the mating surfaces of each of the annular edges are naturally concave; or the mating surface of one of the annular rims is naturally concave, and the mating surface of the other annular rim is naturally flat; or the mating surface of one of the annular rims is naturally convex and the mating surface of the other annular rim is naturally concave; or The joining surface of one of the annular rim portions is convex in its natural state, and the joining surface of the other annular rim portion is flat in its natural state.

5. The toy water balloon of claim 4.

6. 5. The toy water balloon of claim 4, wherein the annular edge of at least one of the petals comprises an annular body connected to the body of the corresponding petal, and a flange extending obliquely from the radially inner side of the annular body toward the opposite side of the body in the thickness direction, the flange being located inside the magnet member of the corresponding petal in the radial direction of the annular body, the surface of the annular body and the surface of the flange forming a joining surface of the annular edge, the flange hitting the other annular edge and deforming due to the action of the magnetic attraction force, the thickness of the flange being smaller than the thickness of the annular body and gradually becoming thinner in the direction away from the annular body.

7. A toy water balloon as described in any one of claims 1 to 3, characterized in that a flange extending diagonally opposite the main body in the thickness direction is provided on the radially inner side of one of the annular edge portions, and a notch corresponding to the flange is provided on the radially inner side of the other annular edge portion, and when the petal-shaped body is in a closed state, the flange extends into the notch and is tightly fitted to the inner wall of the notch by the action of the magnetic attraction force generated by the magnet member.

8. 8. The toy water balloon of claim 7, wherein the flange has a mating surface for mating with the inner wall of the notch, and the inclination angle of the mating surface of the flange relative to the central axis of the corresponding annular edge is smaller than the inclination angle of the inner wall of the notch relative to the central axis of the corresponding annular edge.

9. 2. The toy water balloon of claim 1, wherein each of the annular edges has a mating surface for mating with the other annular edge, the mating surface of one of the annular edges has a ring-shaped protrusion, the mating surface of the other annular edge is flat in its natural state, and when the petals are closed, the magnetic attraction force generated by the magnet member causes the ring-shaped protrusion to press against the mating surface of the other annular edge, forming an annular groove on the mating surface of the other annular edge, and the ring-shaped protrusion and the inner wall of the annular groove fit tightly together.

10. the thickness of the second layer is greater than the thickness of the first layer; the connecting portion is integrally molded with the second layer, the thickness of the connecting portion is smaller than the thickness of the second layer; 2. The toy water balloon according to claim 1, wherein when the pair of petals are in a closed state, the connecting portion is bent into a C-shape or a U-shape and protrudes from the outer surface of the petals.

11. 11. The toy water balloon according to claim 10, wherein the connecting portion is integrally formed with the second layer of the two annular edge portions, and the thickness of the connecting portion is smaller than the thickness of the second layer.

12. the thickness of the annular edge of each petal is greater than the thickness of the body; or the minimum thickness of the body is in the range of 0.2 to 1 mm; or The thickness of the annular rim is in the range of 2.5 to 5 mm.

2. The toy water balloon of claim 1.

13. The main body portions of the pair of petals are symmetrical with respect to the connecting portion, Each of the petals may be of symmetrical or asymmetrical structure.

2. The toy water balloon of claim 1.

14. 2. The toy water balloon of claim 1, wherein the connecting portion can change between an extended state and a bent state to correspond to the open and closed states of the petals, and when the pair of petals is in the closed state, the connecting portion is bent into a C-shape or a U-shape to protrude from the outer surface of the petals.

15. 2. The toy water balloon of claim 1, wherein each of the annular edges has a mating surface for mating with the other annular edge, the magnetic member has a plurality of magnets arranged at intervals, and the magnetic flux density of the mating surface corresponding to the center position of the magnet is 130 mT to 260 mT.

16. 16. The toy water balloon of claim 15, wherein each of the annular edges has a plurality of accommodation grooves for accommodating the magnets, an adhesive layer is provided between the magnets and the groove walls of the accommodation grooves, and each of the annular edges is integrally molded around the magnets by injection molding or hot press molding, encasing the magnets therein.

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