Toy globefish

By setting a sealed chamber and a sealed cover in the toy pufferfish, and using an electromagnetic valve and an air pump to control the airtight connection of the elastic outer skin, the pufferfish's volume expansion and contraction can be achieved. This solves the problem of the limited fun of traditional toy pufferfish and improves realism and interactivity.

CN224207375UActive Publication Date: 2026-05-08DONGGUAN TUOPAI CULTURAL CREATIVITY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN TUOPAI CULTURAL CREATIVITY CO LTD
Filing Date
2025-05-16
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Traditional toy pufferfish cannot expand in size when out of water, resulting in reduced realism, interactivity, and fun.

Method used

A toy pufferfish was designed. By setting a sealed chamber and a sealed cover at the bottom of the shell, and using an electromagnetic valve and an air pump to control the airtight connection of the elastic outer skin, the expansion and contraction of the variable air chamber can be achieved, mimicking the defensive expansion characteristics of the pufferfish.

Benefits of technology

It increases the realism, interactivity, and fun of the toy pufferfish, enhancing the user experience by mimicking the biological characteristics of the pufferfish.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the utility model provides a toy globefish. The toy globefish comprises a shell, an elastic outer skin, an air pump, an electromagnetic valve, a power source and a circuit board. A sealing bin and a sealing cover are arranged at the bottom of the shell, and the sealing cover is further provided with an air vent and two detection contacts. The shell is covered with the elastic outer skin, the elastic outer skin is provided with a first opening and is in sealed connection with the shell after being pressed by the sealing bin and the sealing cover at the first opening, and a variable air chamber is defined by the elastic outer skin and the sealing cover. When the electromagnetic valve is closed, the variable air chamber is a closed air chamber. When the detection contact detects that the toy globefish leaves the water environment, the electromagnetic valve is opened, the air pump pumps air into the variable air chamber from the air vent, and the elastic skin expands, so that the typical biological characteristic of volume expansion after the globefish leaves the water environment is simulated.
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Description

Technical Field

[0001] This utility model relates to the field of toys, specifically to the field of toy pufferfish. Background Technology

[0002] Traditional toy fish have achieved the function of swimming in water through sophisticated mechanical structures and electronic actuation, but they lack the simulation of other morphological changes in living organisms, resulting in a lack of engaging content. For example, existing toy pufferfish do not have the function of expanding in volume when out of the water, which significantly reduces their realism, interactivity, and fun. Utility Model Content

[0003] Therefore, one objective of this invention is to provide a toy pufferfish that solves the problem of not being able to expand in volume when out of the water.

[0004] This utility model embodiment provides a toy pufferfish, comprising:

[0005] The housing has a sealed chamber and a sealed cover at its bottom, and the sealed cover has a vent and two detection contacts.

[0006] An elastic outer skin covers the outer shell and has a first opening at the bottom. The sealing chamber and the sealing cover press the elastic outer skin together to seal the shell at the first opening. The elastic outer skin and the sealing cover together form a variable air chamber.

[0007] The housing is also equipped with an air pump and a solenoid valve. The air pump is connected to the air vent through the solenoid valve. When the solenoid valve is closed, the variable air chamber can be converted into a sealed air chamber.

[0008] The housing also contains a power supply and a circuit board, which are electrically connected to the air pump, the solenoid valve, and the two detection contacts.

[0009] Furthermore, the sealed chamber has a conical chamber wall, the sealed cover has a conical cover wall, the elastic outer skin has a first connecting edge at the first opening, and the cover wall presses the first connecting edge tightly against the chamber wall.

[0010] Furthermore, the elastic outer skin has a Z-shaped transition edge between the first opening and the first connecting edge, the sealing cover has a cover platform, the sealing chamber has a chamber seat, and the cover platform presses the transition edge tightly against the chamber seat.

[0011] Furthermore, two conductive rods are inserted through the sealing cap, and the conductive rods are injection molded with the sealing cap, with one end of the conductive rod exposed to form the detection contact.

[0012] Furthermore, the conductive rod extends into the housing through the connection hole of the sealed chamber and is electrically connected to the circuit board via a metal spring.

[0013] Furthermore, the conductive rod abuts against the spring pin that penetrates the sealed chamber, and the other end of the spring pin is electrically connected to the circuit board.

[0014] Furthermore, the sealing cover is provided with a charging compartment and a charging compartment cover, and the charging compartment is provided with a charging interface.

[0015] Furthermore, the vent is positioned between the two detection contacts.

[0016] Furthermore, it also includes a tail fin and a drive device for driving the tail fin to swing. The tail fin is connected to the drive device through a connecting rod that penetrates the shell. The elastic outer skin has a second opening and a second connecting edge at the point where the connecting rod passes through the shell. A sealing device is provided at the point where the connecting rod penetrates the shell and at the second connecting edge.

[0017] Furthermore, the sealing device includes a sealing plug, a sealing seat, and an end cap. The sealing seat is fixedly connected to the housing. The sealing plug is an elastic element. The sealing plug is pressed against the sealing seat. The end cap is sleeved on the sealing seat and presses the second connecting edge.

[0018] The beneficial effects of this utility model of toy pufferfish are:

[0019] This invention achieves an airtight connection between the elastic outer skin and the housing by setting a sealing chamber and a sealing cover at the bottom of the shell. The sealing cover presses the connecting edge at the first opening of the elastic outer skin into the sealing chamber, forming a variable air chamber between the elastic outer skin and the sealing cover. When the detection contact detects that the toy pufferfish has left the water environment, the circuit board controls the solenoid valve to open, and the air pump pumps outside air into the variable air chamber from the vent. The air pressure inside the variable air chamber increases and the volume expands. When the detection contact detects that the toy pufferfish has returned to the water environment, the solenoid valve opens, and the variable air chamber, under the elastic restoring force of the elastic outer skin, vents air through the vent and returns to its original shape. This achieves the imitation of the typical biological characteristic of the pufferfish's defensive expansion, increasing the realism, interactivity, and fun of the toy pufferfish. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1This is a schematic diagram of the shape of the toy pufferfish provided in this embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the elastic outer skin structure provided in an embodiment of the present invention;

[0023] Figure 3 This is one of the schematic diagrams of a toy pufferfish exploding according to an embodiment of this utility model;

[0024] Figure 4 This is the second schematic diagram of the toy pufferfish explosion provided in this embodiment of the utility model;

[0025] Figure 5 yes Figure 1 sectional view along line AA;

[0026] Figure 6 yes Figure 5 One of the enlarged structural diagrams at point B in the middle;

[0027] Figure 7 yes Figure 5 The second enlarged structural diagram at point B;

[0028] Figure 8 This is a schematic diagram of the connection structure between the circuit board and the conductive rod provided in an embodiment of this utility model;

[0029] Figure 9 This is a schematic diagram of the connection structure of the sealing device provided in an embodiment of the present invention.

[0030] Reference numerals: 1. Housing; 11. Upper housing; 12. Lower housing; 13. Sealing chamber; 130. Chamber wall; 131. Chamber base; 132. Connecting post; 133. Connecting hole; 134. Spring pin; 135. First through hole; 14. Sealing cover; 140. Cover wall; 141. Cover platform; 142. Second vent; 143. Connecting groove; 144. Charging chamber; 145. Charging chamber cover; 145. Detection hole; 1450. Conductive rod; 146. Second through hole; 147. Third vent; 148. Vent; 15. Detection contact; 16. Connecting nozzle; 17. First vent; 171. Gap chamber; 18. First seal. Ring 101, second sealing ring 102, third sealing ring 103, fourth sealing ring 104, elastic outer skin 2, first opening 21, first connecting edge 22, transition edge 23, variable air chamber 24, second opening 25, second connecting edge 26, air pump 3, solenoid valve 4, power supply 5, circuit board 6, metal spring 61, charging head 62, tail fin 8, drive device 80, swing arm 801, slide cylinder 8011, bushing 802, connecting rod 803, sealing device 81, end cover 811, sealing seat 812, swing hole 8120, sealing surface 8121, sealing plug 813. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] like Figure 1 , 2 As shown, this utility model provides a toy pufferfish, including a shell 1 and an elastic outer skin 2. The shell 1 is made of a rigid material and forms the overall outline of the toy pufferfish. The elastic outer skin 2 is an elastic component that covers the outer surface of the shell 1. The elastic outer skin 2 constitutes the biomimetic skin and external organs of the toy pufferfish, such as the mouth, gills, fins, and most notably, the dermal spine structure. This utility model does not specifically describe the elastic outer skin 2; the elastic outer skin 2 can imitate various forms of pufferfish, porcupinefish, and other organisms with volume expansion characteristics.

[0033] like Figures 3-5 As shown, the housing 1 is divided into a detachable upper housing 11 and a lower housing 12 to facilitate the installation and removal of internal components. A sealing chamber 13 and a sealing cover 14 are provided at the bottom of the housing 1 for connection with the elastic outer skin 2. The elastic outer skin 2 has a first opening 21 at its bottom, and a first connecting edge 22 extends inward from the first opening 21 towards the interior of the elastic outer skin 2. The sealing cover 14 presses the first connecting edge 22 tightly against the sealing chamber 13, thus sealing the first opening 21 at the bottom of the elastic outer skin 2 by the sealing chamber 13 and the sealing cover 14. This forms an airtight variable air chamber 24 enclosed by the elastic outer skin 2 and the sealing cover 14. Since the elastic outer skin 2 is an elastic element, the variable air chamber 24 can change its volume according to changes in internal air pressure.

[0034] Specifically, such as Figure 4 As shown, the sealing chamber 13 is a cavity formed by the bottom of the lower shell 12 recessing inwards towards the shell 1. The side wall of the sealing chamber 13 is defined as the chamber wall 130. The chamber wall 130 is inclined inwards towards the cavity from the open end to the closed end, thus forming a conical cavity structure with a large open end and a small closed end. Correspondingly, as... Figure 3 As shown, the sealing cover 14 has a boss protruding towards the sealing chamber 13. The side wall of the boss is defined as the cover wall 140. The cover wall 140 is parallel to the chamber wall 130, so that the sealing cover 14 forms a conical structure that fits into the sealing chamber 13.

[0035] like Figure 5 , 6As shown, the outline of the first opening 21 at the bottom of the elastic outer skin 2 is consistent with the opening outline of the sealing chamber 13. The elastic outer skin 2 is fitted onto the outer surface of the housing 1, and the first connecting edge 22 extends into the sealing chamber 13. When the sealing cover 14 is closed on the sealing chamber 13, the cover wall 140 of the sealing cover 14 presses the first connecting edge 22 against the chamber wall 130 of the sealing chamber 13. During the process of tightening the sealing cover 14, if bolts are used for tightening, as the sealing cover 14 is pressed into the sealing chamber 13, due to the conical structure of the sealing cover 14 and the sealing chamber 13, the space between the cover wall 140 and the chamber wall 130 is further compressed, thereby pressing the first connecting edge 22 tightly, realizing the sealed connection between the elastic outer skin 2 and the housing 1. The elastic outer skin 2 and the sealing cover 14 enclose a variable air chamber 24.

[0036] It should be noted that the air pump 3 is located inside the housing 1, and the internal cavity of the housing 1 should be connected with the internal space of the elastic outer skin 2 to jointly form the variable air chamber 24. In some embodiments, the upper housing 11 is provided with several through air holes, and the upper housing 11 and the lower housing 12 can also be configured as an open connection structure, which will not be described in detail here.

[0037] Preferred, such as Figure 7 As shown, in some embodiments of this utility model, in order to ensure the connection stability of the first connecting edge 22 at the sealing cover 14 and the sealing chamber 13, a Z-shaped transition edge 23 is provided between the first opening 21 and the first connecting edge 22. Correspondingly, the sealing chamber 13 is provided with an inwardly recessed chamber seat 131 at the connection with the housing 1, and the sealing cover 14 is provided with a cover platform 141 extending along the contour of the housing 1. During the process of tightening the sealing cover 14, if bolts are used for tightening, as the sealing cover 14 is pressed into the sealing chamber 13, the cover wall 140 and the chamber wall 130 press the first connecting edge 22 together, and the cover platform 141 and the chamber seat 131 press the transition edge 23 together. When the elastic outer skin 2 expands, the Z-shaped transition edge 23 is not prone to loosening due to deformation, which greatly improves the connection stability between the elastic outer skin 2 and the sealing cover 14.

[0038] The housing 1 also houses an air pump 3 and a solenoid valve 4. One end of the air pump 3 is connected to one end of the solenoid valve 4, and the other end of the solenoid valve 4 is connected to a vent 15 on the outer surface of the sealing cover 14. When the solenoid valve 4 is closed, the variable air chamber 24 becomes a sealed air chamber with good airtightness. The solenoid valve 4 is located inside the housing 1, and the vent 15 is located on the surface of the sealing cover 14. Therefore, the connection between the solenoid valve 4 and the vent 15 requires passage through the sealing chamber 13 and the sealing cover 14. Except for the connection between the solenoid valve 4 and the vent 15, which involves the structure of components such as the sealing chamber 13 and the sealing cover 14, all other connections described in this invention can be achieved through conventional methods such as flexible hose connections. These are conventional designs in the field and will not be described in detail.

[0039] like Figure 6As shown, a connecting nozzle 17 is provided on the back of the sealing chamber 13. Specifically, the connecting nozzle 17 extends from the back of the sealing chamber 13 into the interior of the housing 1. The connecting nozzle 17 has a first vent hole 171 that penetrates the connecting nozzle 17 and the bottom of the housing 1. The sealing cover 14 has a second vent hole 142 that penetrates the sealing cover 14, forming a vent 15 on the surface of the sealing cover 14. After the sealing cover 14 and the sealing chamber 13 are securely connected, the first vent hole 171 and the second vent hole 142 connect the connecting nozzle 17 and the vent 15, thus realizing the connection between the solenoid valve 4 and the vent 15.

[0040] After the sealing cap 14 is tightened, there may be a gap between the top of the sealing chamber 13 and the top of the sealing cap 14. This gap is defined as the gap air chamber 18. That is to say, the first vent hole 171 and the second vent hole 142 are not directly connected. However, since the sealing cap 14 and the sealing chamber 13 have pressed the first connecting edge 22 and achieved a seal, the first vent hole 171 and the second vent hole 142 are actually indirectly connected through the gap air chamber 18.

[0041] In some embodiments of this utility model, to further enhance the airtightness of the connection between the first vent 171 and the second vent 142, a first sealing ring 101 is provided at the first / second vent between the sealing chamber 13 and the sealing cover 14. A positioning groove is provided at the corresponding position on the sealing cover 14, and a flange is provided at the corresponding position on the sealing chamber 13. The shape of the positioning groove and the flange is the same as the shape of the first sealing ring 101. Before installing the sealing cover 14, the first sealing ring 101 can be placed into the positioning groove of the sealing cover 14, and then the sealing cover 14 can be installed and tightened. As the sealing cover 14 is tightened, the flange presses against the first sealing ring 101, achieving a good sealing effect. Figure 7 As shown.

[0042] In some embodiments of this utility model, to avoid the problem of indirect communication between the first vent 171 and the second vent 142 through the gap chamber 18, a cylindrical connecting post 132 can be formed extending from the first vent 171 of the sealing chamber 13 towards the sealing cover 14. The first vent 171 also extends through the connecting post 132. A cylindrical connecting groove 143 is provided at one end of the second vent 142 near the connecting post 132. The inner diameter of the connecting groove 143 is the same as the outer diameter of the connecting post 132. After the sealing cover 14 is tightened, the connecting post 132 is inserted into the connecting groove 143, thereby achieving direct communication between the first vent 171 and the second vent 142. Figure 6As shown. The connecting post 132 can be further configured as a conical shape, and / or a circular sealing ring can be provided at the connection between the second vent 142 and the connecting post 132 to further increase the good airtightness of the direct connection between the first vent 171 and the second vent 142. These direct connection forms are all conventional designs in the art and will not be described in detail here.

[0043] The housing 1 also houses a power supply 5 and a circuit board 6, and two detection contacts 16 are located on the sealing cover 14. The power supply 5, circuit board 6, air pump 3, solenoid valve 4, and the two detection contacts 16 are electrically connected. When the toy pufferfish leaves the water, the two detection contacts 16 are no longer electrically connected to the water. The circuit board 6 controls the solenoid valve 4 to open, and the air pump 3 to start working. The air pump 3 pumps outside air into the variable air chamber 24 through the air vent 15 via the solenoid valve 4, the first vent 171, and the second vent 142. The air pressure in the variable air chamber 24 increases, causing the elastic outer skin 2 to expand. The circuit board 6 controls the solenoid valve 4 to close, and the air pump 3 stops pumping air. Because the variable air chamber 24 is airtight, the elastic outer skin 2 can remain in an expanded state, simulating the typical biological characteristic of a pufferfish exhibiting defensive expansion after being pulled from the water.

[0044] On the other hand, after the toy pufferfish is put back into the water, the two detection contacts 16 are electrically connected through the water, and the circuit board 6 controls the solenoid valve 4 to open. Under the elastic restoring force of the elastic outer skin 2, the air in the variable air chamber 24 is discharged from the vent 15 through the solenoid valve 4, the first vent 171, and the second vent 142 until the elastic outer skin 2 re-attaches to the shell 1 and restores the toy pufferfish to its original state.

[0045] In some embodiments of this utility model, such as Figure 7 As shown, the two detection contacts 16 are actually one end of two conductive rods 146, and the other end of the two conductive rods 146 extends into the housing 1 and is electrically connected to the circuit board 6 set inside the housing 1.

[0046] The two conductive rods 146 are injection molded as inserts with the sealing cap 14, thus not compromising the airtightness of the gap chamber 18. Two connecting holes 133 are provided at the top of the sealing chamber 13. The inner diameter of the connecting holes 133 is the same as the outer diameter of the conductive rods 146. During the tightening of the sealing cap 14, the conductive rods 146 are inserted into the connecting holes 133 along with the sealing cap 14. Because the inner diameter of the connecting holes 133 is the same as the outer diameter of the conductive rods 146, the variable chamber 24 and the gap chamber 18 still maintain good airtightness after the conductive rods 146 are inserted into the connecting holes 133. The conductive rods 146 can also be configured to have an interference fit with the connecting holes 133, but it is necessary to avoid an excessive interference fit that would make it difficult for the conductive rods 146 to be inserted into the connecting holes 133.

[0047] In some embodiments of this utility model, to further improve the airtightness of the variable air chamber 24, the connection hole 133 is not provided on the top of the sealing chamber 13. Instead, a spring pin 134 is provided at the corresponding position on the top of the sealing chamber 13 by insert injection molding. The length of the conductive rod 146 is adjusted so that it can reliably abut against the spring pin 134 after the sealing cover 14 is tightened. Figure 6 As shown. The spring pin 134 that abuts against each conductive rod 146 can be one or multiple, thereby improving the reliability of the electrical connection.

[0048] In some embodiments of this utility model, a conductive rod 146 may be provided by injection molding the top insert of the sealing chamber 13, and a detection contact 16 and a spring pin 134 electrically connected to the detection contact 16 may be provided by injection molding the insert in the sealing cover 14. One end of the conductive rod 146 extends into the variable air chamber 24, and the other end abuts against the spring pin 134.

[0049] Regardless of whether the structure of inserting the conductive rod 146 into the connection hole 133 is adopted, or the structure of the spring pin 134 abutting against the conductive rod 146 is adopted, the electrical connection end of the detection contact 16 is introduced into the interior of the variable air chamber 24 while ensuring the airtightness of the variable air chamber 24. The electrical connections of the power supply 5, circuit board 6, air pump 3, solenoid valve 4 and spring pin 134 located inside the housing 1 can use conventional electrical connection methods such as wire connection.

[0050] Preferably, the structure employs a conductive rod 146 inserted into the connection hole 133 to enter the variable air chamber 24. Two metal springs 61 are soldered onto the circuit board 6. The inner diameter of the metal springs 61 is the same as the outer diameter of the conductive rod 146. After the conductive rod 146 is inserted into the connection hole 133, the springs are further inserted to achieve an electrical connection between the circuit board 6 and the two conductive rods 146. Figure 8 As shown.

[0051] In some embodiments of this utility model, such as Figure 4 As shown, the sealing cover 14 also includes a charging compartment 144 and a charging compartment cover 145. A charging interface 1440 is provided in the charging compartment 144. A first through hole 135 is formed at the top of the sealing compartment 13, and a second through hole 147 is formed at the top of the charging compartment 144. A charging head 62, electrically connected to the circuit board 6, extends into or partially extends into the first through hole 135 and the second through hole 147, forming the charging interface 1440. When it is necessary to charge the power supply 5 inside the housing 1, the charging compartment cover 145 is opened, and the plug of an external charging cable is inserted into the charging interface 1440, thereby charging the power supply 5 inside the housing 1 through the circuit board 6.

[0052] A second sealing ring 102 is provided between the first through hole 135 and the second through hole 147, specifically between the sealing chamber 13 and the sealing cover 14. The second sealing ring 102 isolates the first through hole 135 and the second through hole 147 from the first vent hole 171 and the second vent hole 142, ensuring the airtightness of the variable air chamber 24. In some embodiments, the second sealing ring 102 and the first sealing ring 101 are located close to each other, and the first sealing ring 101 and the second sealing ring 102 can be integrally formed.

[0053] Furthermore, a vent 15 is provided on the charging compartment cover 145, which has a third vent 148. The third vent 148 forms a vent 15 at one end of the outer surface of the charging compartment cover 145, and the other end communicates with the second vent 142. Between the charging compartment 144 and the charging compartment cover 145, a third sealing ring 103 and a fourth sealing ring 104 are also provided. The third sealing ring 103 is located at the third vent 148, and the fourth sealing ring 104 is located near the edge of the charging compartment cover 145. The third sealing ring 103 and the fourth sealing ring 104 can also be integrally formed.

[0054] Similarly, in order to facilitate installation and improve the sealing effect, flanges and positioning grooves are provided at the second sealing ring 102, the third sealing ring 103, and the fourth sealing ring 104.

[0055] The charging case cover 145 is also provided with two detection holes 1450, and the detection contact 16 is in direct contact with the external environment through the detection holes 1450.

[0056] Preferably, the vent 15 is positioned between the two detection contacts 16, specifically between the two detection holes 1450 on the charging case cover 145 in some embodiments. This ensures that the two detection contacts 16 can accurately detect and determine the actual environment at the vent 15, avoiding the problem that the air pump 3 might draw water from the vent 15 when the two detection contacts 16 detect an environment away from water, even though the vent 15 is actually still in water, due to spatial differences between the two detection points and the vent 15.

[0057] In some embodiments of this utility model, such as Figure 3 , 9 As shown, one end of the housing 1 is also connected to a tail fin 8. Inside the housing 1, there is a drive device 80 that drives the tail fin 8 to swing. The drive device 80 is connected to the tail fin 8 via a connecting rod 803, and drives the tail fin 8 to swing under the drive of the drive device 80, thereby enabling the toy pufferfish to swim in the water. Similarly, the drive device 80 is also electrically connected to the circuit board 6 and the power supply 5. When the detection contact 16 detects the entry into the water environment, the drive device 80 works, and the toy pufferfish swings its tail fin 8 to swim. When it leaves the water environment, the drive device 80 stops working, and the toy pufferfish stops swinging its tail fin 8.

[0058] A sealing device 81 is provided where the connecting rod 803 penetrates the housing 1. The sealing device 81 includes an end cap 811, a sealing seat 812, and a sealing plug 813. The end cap 811 and the sealing seat 812 are made of rigid materials, while the sealing plug 813 is an elastic element, such as rubber. The specific structure of the sealing device 81 and its connection with the drive device 80 are as follows: the bushing 802 presses the sealing plug 813 into the sealing seat 812 and fixes it as a whole at the end of the housing 1. The connecting rod 803 passes through the bushing 802, the sealing plug 813, and the sealing seat 812. One end is inserted into the slide cylinder 8011 provided on the swing arm 801 of the drive device 80, and the other end is connected to the external tail fin 8.

[0059] The sealing seat 812 has a sealing surface 8121 at its end, and a swing hole 8120 is provided on the sealing surface 8121. After the bushing 802 presses the sealing plug 813 into the sealing seat 812, the sealing plug 813 is pressed on the sealing surface 8121 to achieve a seal. When the connecting rod 803 swings, since the sealing plug 813 is an elastic element, the connecting rod 803 swings in the swing hole 8120. The sealing plug 813 follows the swing of the connecting rod 803 and undergoes elastic deformation, but the sealing plug 813 is always pressed on the sealing surface 8121, and still maintains good sealing performance during the swing of the connecting cover.

[0060] The elastic outer skin 2 has a second opening 25 at the point where the connecting rod 803 passes through the housing 1. A second connecting edge 26 extending towards the connecting rod 803 is provided at the second opening 25. The end cap 811 is fitted onto the sealing seat 812 and presses the second connecting edge 26 against the end of the housing 1, thereby sealing the elastic outer skin 2 at the second opening 25 and maintaining good airtightness of the variable air chamber 24.

[0061] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0062] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0063] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0064] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A toy pufferfish, characterized in that, include: The housing has a sealed chamber and a sealed cover at its bottom, and the sealed cover has a vent and two detection contacts. An elastic outer skin covers the outer shell and has a first opening at the bottom. The sealing chamber and the sealing cover press the elastic outer skin together to seal the shell at the first opening. The elastic outer skin and the sealing cover together form a variable air chamber. The housing is also equipped with an air pump and a solenoid valve. The air pump is connected to the air vent through the solenoid valve. When the solenoid valve is closed, the variable air chamber can be converted into a sealed air chamber. The housing also contains a power supply and a circuit board, which are electrically connected to the air pump, the solenoid valve, and the two detection contacts.

2. The toy pufferfish according to claim 1, characterized in that, The sealed chamber has a conical chamber wall, the sealed cover has a conical cover wall, the elastic outer skin has a first connecting edge at the first opening, and the cover wall presses the first connecting edge tightly against the chamber wall.

3. The toy pufferfish according to claim 2, characterized in that, The elastic outer skin has a Z-shaped transition edge between the first opening and the first connecting edge. The sealing cover has a cover platform, and the sealing chamber has a chamber seat. The cover platform presses the transition edge tightly against the chamber seat.

4. The toy pufferfish according to claim 3, characterized in that, Two conductive rods are inserted through the sealing cap. The conductive rods are injection molded with the sealing cap, and one end of the conductive rod is exposed to form the detection contact.

5. The toy pufferfish according to claim 4, characterized in that, The conductive rod extends into the housing through the connection hole of the sealed chamber and is electrically connected to the circuit board via a metal spring.

6. The toy pufferfish according to claim 5, characterized in that, The conductive rod abuts against the spring pin that penetrates the sealed chamber, and the other end of the spring pin is electrically connected to the circuit board.

7. The toy pufferfish according to any one of claims 1-6, characterized in that, The sealing cover is provided with a charging compartment and a charging compartment cover, and the charging compartment is provided with a charging interface.

8. The toy pufferfish according to claim 1, characterized in that, The vent is located between the two detection contacts.

9. The toy pufferfish according to claim 1, characterized in that, It also includes a caudal fin and a drive device for driving the caudal fin to swing. The caudal fin is connected to the drive device through a connecting rod that penetrates the shell. The elastic outer skin has a second opening and a second connecting edge at the point where the connecting rod passes through the shell. A sealing device is provided at the point where the connecting rod penetrates the shell and at the second connecting edge.

10. The toy pufferfish according to claim 9, characterized in that, The sealing device includes a sealing plug, a sealing seat, and an end cap. The sealing seat is fixedly connected to the housing. The sealing plug is an elastic element. The sealing plug is pressed against the sealing seat. The end cap is sleeved on the sealing seat and presses the second connecting edge.