Fish-shaped toy boat

Abstract

The utility model discloses a fish-shaped toy boat which comprises a fish-shaped boat body and a marching driving device, the fish-shaped boat body is provided with an inner cavity, and the marching driving device is installed in the inner cavity of the fish-shaped boat body. The fish-shaped ship is characterized by further comprising a steering mechanism and two pelvic fins, and the two pelvic fins are rotationally arranged on the left side and the right side of the fish-shaped ship body respectively; the steering mechanism comprises a first steering driving device and a first linkage mechanism capable of driving at least one pelvic fin to rotate, the first steering driving device is installed in an inner cavity of the fish-shaped ship body, and the first linkage mechanism is in transmission connection with the power output end of the first steering driving device. The fish toy boat can simulate the fish to use the fins to control steering when the fish swims in water, and is simple in structure and convenient to adjust and control.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of toys, especially a fish-shaped toy ship. BACKGROUND

[0002] As a "big toy", the toy remote control ship is large in size, heavy in weight, and complex in operation, and is easy to capsize, so only older players can operate it smoothly. In order to enable children to also play and attract the attention of children, the toy ships that are small in size and imitate the shape of fish have appeared on the market, and such toy ships can also achieve submersion, swimming and remote control turning. However, such toy ships usually only have a fish-shaped shell, and they need to be provided with multiple rudders at the lower end of the ship body or utilize the differential speed of double propellers to achieve turning, which will reduce the simulation degree of the fish-shaped toy ship; and the use of abdominal fins to simulate fish for turning not only needs a complex driving structure, is high in cost and heavy in weight, but also cannot achieve unified control of the two sides of the abdominal fins, which is difficult for children in actual operation. SUMMARY

[0003] The utility model solves the technical problem of providing a fish-shaped toy ship, which can simulate the use of fish fins to control turning when fish swim in water, is simple in structure and convenient to adjust and control.

[0004] In order to solve the above technical problems, the technical scheme adopted is as follows:

[0005] A fish-shaped toy ship, comprising a fish-shaped ship body and a traveling driving device, the fish-shaped ship body being provided with an inner cavity, and the traveling driving device being installed in the inner cavity of the fish-shaped ship body; characterized in that it further comprises a turning mechanism and two abdominal fins, the two abdominal fins being respectively rotatably arranged on the left and right sides of the fish-shaped ship body; the turning mechanism comprises a first turning driving device and a first linkage mechanism capable of driving at least one abdominal fin to rotate, the first turning driving device being installed in the inner cavity of the fish-shaped ship body, and the first linkage mechanism being in transmission connection with the power output end of the first turning driving device.

[0006] In the above fish-shaped toy ship, the traveling driving device controls the forward movement and backward movement of the fish-shaped ship body; when the fish-shaped ship body is controlled to turn, the first turning driving device can drive at least the abdominal fin on one side of the fish-shaped ship body to rotate through the first linkage mechanism, so as to change the drainage direction of the abdominal fin and realize the left turn or right turn of the fish-shaped ship body. When the fish-shaped toy ship moves in water, it can simulate the way that fish change the forward direction through abdominal fins to realize turning, and is convenient to adjust and control, does not need to control the two abdominal fins separately, is simple in structure, and can effectively reduce the weight.

[0007] In a preferred solution, the first linkage mechanism comprises a steering rod and two transmission assemblies, the middle position of the steering rod is in transmission connection with the power output end of the first steering driving device; the two transmission assemblies are respectively in one-to-one correspondence with the two pectoral fins, the transmission assembly comprises a transmission bar and a first rotating member, the left and right ends of the steering rod are respectively hinged with one end of the two transmission bars, the transmission bars are movably arranged in the inner cavity of the fish-shaped hull; the first rotating member is rotatably installed in the inner cavity of the fish-shaped hull, the first rotating member is hinged with the other end of the transmission bar, and the hinged position is offset from the rotation center of the first rotating member; the first rotating member is fixedly connected with the corresponding pectoral fin. With this structure, the first linkage mechanism can simultaneously drive the left and right pectoral fins to rotate in opposite directions (i.e. when one side of the pectoral fin rotates clockwise, the other side of the pectoral fin rotates counterclockwise). When the fish-shaped hull is controlled to turn, according to the required turning direction and amplitude, the first steering driving device drives the steering rod to rotate around the center position, at this time, the left side of the steering rod can swing forward / backward, driving the transmission bar on the left side to move forward / backward, in the moving process, the transmission bar on the left side can drive the corresponding first rotating member to rotate forward / backward, thereby driving the left pectoral fin to rotate; the right side of the steering rod can synchronously swing backward / forward, driving the transmission bar on the right side to move backward / forward, in the moving process, the transmission bar on the right side can drive the corresponding first rotating member to rotate backward / forward, thereby driving the right pectoral fin to rotate, realizing the left turn / right turn of the toy ship.

[0008] In a further preferred solution, the steering rod comprises a longitudinal rod running in front-back direction and a transverse rod running in left-right direction, one end of the longitudinal rod is connected with the middle position of the transverse rod, the longitudinal rod is provided with a guide hole running in front-back direction, the left and right ends of the transverse rod are respectively hinged with the two transmission bars; the first steering driving device comprises a first motor, a first steering gear box and a first reset torsion spring, the first motor is installed in the inner cavity of the fish-shaped hull, the output shaft of the first motor is connected with the first steering gear box, the first steering gear box is provided with a connecting column, the last-stage gear of the first steering gear box is provided with a guide column offset from the rotation center, the guide column extends out of the first steering gear box, the connecting column and the guide column are both arranged in up-down direction, the middle position of the longitudinal rod or the transverse rod is rotatably installed on the connecting column, and the guide column is in the guide hole; the first steering gear box is provided with a first limiting block, the first reset torsion spring is sleeved on the guide column or the first limiting block, and the two ends of the first reset torsion spring are located on the two sides of the first limiting block or the guide column. When driving, the first motor drives the guide column to swing through the first steering gear box, so that the steering rod can rotate around the center position; after the steering is completed, the steering rod can recover to the neutral position under the action of the first reset torsion spring when the first motor stops driving, so as to ensure that the toy ship can keep straight running.

[0009] In another further preferred embodiment, the first steering driving device is a rudder.

[0010] In a further preferred embodiment, the transmission bar is a wire, and the first rotating member and the steering rod are each provided with a connecting hole, one end of the wire is arranged in the connecting hole of the steering rod, and the other end of the wire is arranged in the connecting hole of the corresponding first rotating member. Since the hinged position of the first rotating member and the transmission bar is away from the rotating center of the first rotating member, when the steering rod drives the first rotating member to rotate through the transmission bar, the end of the transmission bar also swings up and down during the movement of the end of the transmission bar forward and backward, and therefore the transmission bar is better in torsional resistance when the transmission bar is a wire, and the transmission bar is prevented from being broken after long time swinging.

[0011] In a further preferred embodiment, the fish-shaped hull is provided with mounting holes which are in communication with the inner cavity and the outside, and the two mounting holes are respectively in one-to-one correspondence with the two ventral fins, the ventral fins are arranged in the corresponding mounting holes and connected with the first rotating members, and a sealing ring is further arranged between the mounting hole and the ventral fin. The sealing ring can prevent water from entering.

[0012] In a preferred embodiment, the fish-shaped toy boat further comprises two anal fins which are respectively arranged rotatably at the left and right sides below the rear of the fish-shaped hull, and the steering mechanism further comprises a second steering driving device and a second linkage mechanism which can drive at least one anal fin to rotate, the second steering driving device is arranged in the inner cavity of the fish-shaped hull, and the second linkage mechanism is in transmission connection with the power output end of the second steering driving device. The second linkage mechanism comprises at least one second rotating member which is rotatably arranged in the inner cavity of the fish-shaped hull, and at least one anal fin is fixedly connected with the second rotating member. With this structure, when the ventral fin rotates, the second steering driving device can drive the anal fin to rotate simultaneously through the second rotating member, so that the anal fin plays an auxiliary steering role. Generally, the rear of the fish-shaped hull is also provided with a mounting hole for mounting the anal fin, and a sealing ring is also arranged between the mounting hole and the anal fin.

[0013] In a further preferred embodiment, the second steering driving device comprises a second motor, a second steering gear box and a second reset torsion spring, the second motor is arranged in the inner cavity of the fish-shaped hull, the output shaft of the second motor is connected with the second steering gear box, and the second rotating member is provided with a driving gear which is in mesh with the last-stage gear of the second steering gear box. The second steering gear box is provided with a second limiting block, the second reset torsion spring is sleeved on the second rotating member or the second limiting block, and the two ends of the second reset torsion spring are located at the two sides of the second limiting block or the second rotating member. During driving, the second motor drives the driving gear to rotate through the second steering gear box, so that the second rotating member drives the anal fin to rotate, and when the second motor stops driving after rotation, the anal fin can restore to the original state under the action of the second reset torsion spring, so that the toy boat can keep straight running.

[0014] In another further preferred embodiment, the second steering driving device is a second rudder.

[0015] In a preferred embodiment, the traveling driving device comprises a third motor, a transmission shaft and a propeller, the third motor is fixedly installed in the inner cavity of the fish-shaped body, the transmission shaft is in transmission connection with the output shaft of the third motor, and the rear end of the transmission shaft extends out of the rear end of the fish-shaped body and is connected with the propeller. In order to ensure the propulsion of the fish-shaped toy boat in water, the traveling driving device adopts the propeller, only a small propeller is needed to provide a huge thrust, and the overall shape of the fish-shaped toy boat is not affected. When traveling, the third motor drives the propeller to rotate through the transmission shaft, so as to realize the water displacement traveling.

[0016] In a further preferred embodiment, the fish-shaped body is provided with a water inlet hole and a water outlet hole, and the traveling driving device further comprises a motor cooling pipe, the motor cooling pipe is wound around the third motor, the water inlet of the motor cooling pipe is in communication with the water inlet hole of the fish-shaped body, and the water outlet of the motor cooling pipe is in communication with the water outlet hole of the fish-shaped body. The motor cooling pipe can cool the third motor, and the cooling water of the motor cooling pipe can directly use the water in the pool, and the water flow driven by the fish-shaped body when traveling in the pool can automatically realize the circulation of the water in the motor cooling pipe, without the need to additionally set a circulating water path in the fish-shaped body.

[0017] In a further preferred embodiment, the water inlet hole is arranged at the rear part of the fish-shaped body. By arranging the water inlet hole at the rear part of the fish-shaped body, the water inlet hole is closer to the propeller, so that the speed of the water flow in the motor cooling pipe can be further accelerated under the influence of the rotation of the propeller, having a better cooling effect. The position of the above-mentioned water outlet hole is usually corresponding to the position of the third motor (i.e. when the third motor is arranged at the front, middle or rear part of the fish-shaped body, the water outlet hole is also arranged at the front, middle or rear part of the fish-shaped body correspondingly).

[0018] In a preferred embodiment, the fish-shaped toy boat further comprises a remote controller, the inner cavity of the fish-shaped body is provided with a remote control receiving circuit matched with the remote controller, and the signal input ends of the traveling driving device and the first steering driving device are respectively electrically connected with the corresponding signal output ends of the remote control receiving circuit. The fish-shaped body can be controlled to advance and turn through the remote controller. In the case where the second steering driving device is provided, the signal input end of the second steering driving device is also electrically connected with the corresponding signal output end of the remote control receiving circuit. The above-mentioned fish-shaped body is usually further provided with a battery for supplying power to the traveling driving device, the remote control receiving circuit, the first steering driving device and the second steering driving device. The above-mentioned remote controller and remote control receiving circuit can adopt the existing structure.

[0019] In the preferred embodiment, the fish-shaped hull is shark-shaped. The fish-shaped hull can also adopt the appearance of other fish species.

[0020] The beneficial effects of this invention are that this fish toy boat can simulate the steering of a fish using its fins when swimming in water, and its structure is simple and easy to adjust and control. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the fish toy boat in Embodiment 1 of this utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the fish toy boat in Embodiment 1 of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the fish toy boat after the remote control receiver circuit and battery have been removed in Embodiment 1 of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the first steering drive device, the first linkage mechanism, and the ventral fin in Embodiment 1 of this utility model when they are in cooperation;

[0025] Figure 5 for Figure 4 A schematic diagram of the structure after the steering rod has been removed;

[0026] Figure 6 This is a schematic diagram of the structure of the second steering drive device, the second linkage mechanism and the anal fin in Embodiment 1 of this utility model. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0028] Example 1, as Figures 1-6 The illustration shows a fish-shaped toy boat, comprising a remote control (not shown), a fish-shaped hull 1, a propulsion drive device 2, a steering mechanism 3, and two ventral fins 4. The fish-shaped hull 1 has an inner cavity, in which the propulsion drive device 2 is installed. The inner cavity of the fish-shaped hull 1 contains a remote control receiver circuit 5 compatible with the remote control, and a battery 6 for powering the propulsion drive device 2, the remote control receiver circuit 5, and the steering mechanism 3. The two ventral fins 4 are rotatably mounted on the left and right sides of the fish-shaped hull 1, respectively. The steering mechanism 3 includes a first steering drive device 301 and a first linkage mechanism 302 capable of simultaneously driving the two ventral fins 4 to rotate in opposite directions. The first steering drive device 301 is installed in the inner cavity of the fish-shaped hull 1, and the first linkage mechanism 302 is connected to the power output end of the first steering drive device 301. The signal input ends of the propulsion drive device 2 and the first steering drive device 301 are electrically connected to the corresponding signal output ends of the remote control receiver circuit 5.

[0029] The fish-shaped toy boat, the advancing driving device 2 controls the advancing and retreating of the fish-shaped hull 1; when the fish-shaped hull 1 is controlled to turn, the first turning driving device 301 can drive the left and right abdominal fins 4 to turn in opposite directions through the first linkage mechanism 302 (i.e. when one side of the abdominal fin 4 turns clockwise, the other side of the abdominal fin 4 turns counterclockwise), so as to realize the left turn or right turn of the fish-shaped hull 1 by changing the drainage direction of the abdominal fin 4. When the fish-shaped toy boat moves in the water, it can simulate the way fish change the advancing direction by the abdominal fin 4 to realize turning, and the adjustment and control are convenient, without the need to control the two sides of the abdominal fin 4 separately, the structure is simple, and the weight can be effectively reduced.

[0030] The first linkage mechanism 302 includes a turning rod 3021 and two transmission assemblies 3022, the middle position of the turning rod 3021 is in transmission connection with the power output end of the first turning driving device 301; the two transmission assemblies 3022 are respectively corresponding to the two abdominal fins 4, the transmission assembly 3022 includes a transmission bar 30221 and a first rotating piece 30222, the left and right ends of the turning rod 3021 are respectively hinged with one end of the two transmission bars 30221, the transmission bar 30221 is movably arranged in the inner cavity of the fish-shaped hull 1; the first rotating piece 30222 is rotatably installed in the inner cavity of the fish-shaped hull 1, the first rotating piece 30222 is hinged with the other end of the transmission bar 30221, and the hinged position is offset from the rotation center of the first rotating piece 30222; the first rotating piece 30222 is fixedly connected with the corresponding abdominal fin 4. When the fish-shaped hull 1 is controlled to turn, according to the required turning direction and amplitude, the first turning driving device 301 drives the turning rod 3021 to rotate around the center position, at this time the left side of the turning rod 3021 can swing forward / backward, driving the transmission bar 30221 on the left side to move forward / backward, the transmission bar 30221 on the left side can drive the corresponding first rotating piece 30222 to rotate forward / backward in the moving process, thereby driving the abdominal fin 4 on the left side to rotate; the right side of the turning rod 3021 can synchronously swing backward / forward, driving the transmission bar 30221 on the right side to move backward / forward, the transmission bar 30221 on the right side can drive the corresponding first rotating piece 30222 to rotate backward / forward in the moving process, thereby driving the abdominal fin 4 on the right side to rotate, realizing the left turn / right turn of the toy boat.

[0031] The steering lever 3021 comprises a front-to-back longitudinal lever 30211 and a left-to-right transverse lever 30212, one end of the longitudinal lever 30211 is connected to the middle position of the transverse lever 30212, the longitudinal lever 30211 is provided with a front-to-back guide hole 302111, and the left and right ends of the transverse lever 30212 are respectively hinged to two transmission bars 30221; the first steering driving device 301 comprises a first motor 3011, a first steering gear box 3012 and a first reset torsion spring 3013, the first motor 3011 is installed in the inner cavity of the fish-shaped hull 1, the output shaft of the first motor 3011 is connected with the first steering gear box 3012, the first steering gear box 3012 is provided with a connecting column 30121, the last stage gear of the first steering gear box 3012 is provided with a guide column 30122 deviating from the rotation center, the guide column 30122 extends out of the first steering gear box 3012, the connecting column 30121 and the guide column 30122 are both arranged in the up-and-down direction, the middle position of the transverse lever 30212 is rotatably installed on the connecting column 30121, and the guide column 30122 is in the guide hole 302111; the first steering gear box 3012 is provided with a first limiting block 30123, the first reset torsion spring 3013 is sleeved on the first limiting block 30123, and the two ends of the first reset torsion spring 3013 are located on the two sides of the guide column 30122. When driving, the first motor 3011 drives the connecting column 30121 to swing through the first steering gear box 3012, so that the steering lever 3021 can rotate around the center position; when the first motor 3011 stops driving after completing steering, the steering lever 3021 can restore to the neutral position under the action of the first reset torsion spring 3013, so as to ensure that the toy ship can keep straight running.

[0032] The transmission bar 30221 is made of a metal wire, the left and right ends of the first rotating piece 30222 and the steering lever 3021 are both provided with connecting holes, one end of the metal wire is arranged in the connecting hole of the steering lever 3021, and the other end of the metal wire is arranged in the connecting hole corresponding to the first rotating piece 30222. Since the hinged position of the first rotating piece 30222 and the transmission bar 30221 is away from the rotation center of the first rotating piece 30222, when the steering lever 3021 drives the first rotating piece 30222 to rotate through the transmission bar 30221, the end of the transmission bar 30221 will also swing up and down in the process of moving forward and backward, so that the transmission bar 30221 is made of a metal wire, which has better torsional resistance and can avoid breaking of the transmission bar 30221 under long-time swinging.

[0033] The fish-shaped hull 1 is provided with mounting holes communicating with the inner cavity and the outside on the left and right sides, the two mounting holes are respectively corresponding to the two pectoral fins 4, the pectoral fins 4 extend into the corresponding mounting holes and are connected with the first rotating piece 30222, and a sealing ring is further arranged between the mounting hole and the pectoral fin 4. The sealing ring can play a waterproof role.

[0034] The fish-shaped toy boat further comprises two anal fins 7, which are respectively rotatably arranged at the left and right sides below the rear part of the fish-shaped hull 1; the steering mechanism 3 further comprises a second steering driving device 303 and a second linkage mechanism capable of driving one of the anal fins 7 to rotate, the second steering driving device 303 is installed in the inner cavity of the fish-shaped hull 1, and the second linkage mechanism is in transmission connection with the power output end of the second steering driving device 303; the second linkage mechanism comprises a second rotating piece 304, which is rotatably installed in the inner cavity of the fish-shaped hull 1, and one of the anal fins 7 is fixedly connected with the second rotating piece 304. With this structure, when the ventral fin 4 rotates, the second steering driving device 303 can drive the anal fin 7 to rotate at the same time through the second rotating piece 304, so that the anal fin 7 plays an auxiliary steering role. Generally, the rear part of the fish-shaped hull 1 is also provided with a mounting hole for mounting the anal fin 7, and a sealing ring is also arranged between the mounting hole and the anal fin 7.

[0035] The second steering driving device 303 comprises a second motor 3031, a second steering gear box 3032 and a second reset torsion spring 3033, the second motor 3031 is installed in the inner cavity of the fish-shaped hull 1, the output shaft of the second motor 3031 is connected with the second steering gear box 3032, and the second rotating piece 304 is provided with a driving gear 3041 engaged with the last gear of the second steering gear box 3032; the second steering gear box 3032 is provided with a second limiting block 30321, the second reset torsion spring 3033 is sleeved on the second rotating piece 304, and the two ends of the second reset torsion spring 3033 are located on the two sides of the second limiting block 30321. During driving, the second motor 3031 drives the driving gear 3041 to rotate through the second steering gear box 3032, so that the second rotating piece 304 drives the anal fin 7 to rotate; when the second motor 3031 stops driving after rotation, the anal fin 7 can restore to the original state under the action of the second reset torsion spring 3033, so as to ensure that the toy boat can keep straight running.

[0036] The advancing driving device 2 comprises a third motor 201, a transmission shaft 202 and a propeller 203, the third motor 201 is fixedly installed in the inner cavity of the fish-shaped hull 1, the transmission shaft 202 is in transmission connection with the output shaft of the third motor 201, and the rear end of the transmission shaft 202 extends out of the rear end of the fish-shaped hull 1 and is connected with the propeller 203. In order to ensure the propulsive force of the fish-shaped toy boat in water, the advancing driving device 2 adopts the propeller 203, which only needs a small propeller 203 to provide a huge thrust, and will not affect the overall modeling of the fish-shaped toy boat. During advancing, the third motor 201 drives the propeller 203 to rotate through the transmission shaft 202, so as to realize water advancing.

[0037] The fish-shaped hull 1 is provided with an inlet hole (not shown in the figure) and an outlet hole 101, and the traveling driving device 2 further comprises a motor cooling pipe 204, which is wound around the third motor 201, and the water inlet of the motor cooling pipe 204 is communicated with the inlet hole of the fish-shaped hull 1, and the water outlet of the motor cooling pipe 204 is communicated with the outlet hole 101 of the fish-shaped hull 1. The motor cooling pipe 204 can cool the third motor 201, and the cooling water of the motor cooling pipe 204 can directly use the water in the pool, and the water flow driven by the fish-shaped hull 1 when traveling in the pool can automatically realize the circulation of the water in the motor cooling pipe 204, without the need to additionally set a circulating water path in the fish-shaped hull 1.

[0038] The inlet hole is arranged at the rear of the fish-shaped hull 1. By arranging the inlet hole at the rear of the fish-shaped hull 1, the inlet hole is closer to the propeller 203, so that the speed of the water flow in the motor cooling pipe 204 can be further accelerated under the influence of the rotation of the propeller 203, having a better cooling effect. The position of the above-mentioned outlet hole 101 usually corresponds to the position of the third motor 201 (i.e. when the third motor 201 is arranged at the front, middle or rear of the fish-shaped hull 1, the outlet hole 101 is also arranged at the front, middle or rear of the fish-shaped hull 1).

[0039] The fish-shaped hull 1 is in the shape of a shark.

[0040] In example 2, the difference from example 1 is that the first turning driving device and the second turning driving device both adopt rudders.

Claims

1. A toy fish boat comprising a fish-shaped hull provided with an internal cavity and a travel drive device installed in the internal cavity of the fish-shaped hull; characterized in that: The fish-shaped toy ship further comprises two anal fins, which are rotatably arranged at left and right sides of the rear lower part of the fish-shaped ship body; the steering mechanism further comprises a second steering driving device and a second linkage mechanism capable of driving at least one of the anal fins to rotate, the second steering driving device is installed in the inner cavity of the fish-shaped ship body, and the second linkage mechanism is in transmission connection with a power output end of the second steering driving device.

2. A toy boat of the type defined in claim 1, characterised in that: The first linkage mechanism comprises a steering rod and two transmission assemblies, the middle position of the steering rod is in transmission connection with the power output end of the first steering driving device, and the two transmission assemblies are respectively in one-to-one correspondence with the two anal fins; each transmission assembly comprises a transmission bar and a first rotating member, left and right ends of the steering rod are hingedly connected with one end of the two transmission bars respectively, the transmission bars are movably arranged in the inner cavity of the fish-shaped ship body in a front-rear direction; the first rotating member is rotatably installed in the inner cavity of the fish-shaped ship body, the first rotating member is hingedly connected with the other end of the transmission bar, and the hinged position is offset from the rotation center of the first rotating member; the first rotating member is fixedly connected with the corresponding anal fin.

3. A toy boat of the type defined in claim 2, characterised in that: The steering rod comprises a longitudinal rod extending in a front-rear direction and a transverse rod extending in a left-right direction, one end of the longitudinal rod is connected with the middle position of the transverse rod, the longitudinal rod is provided with a guide hole extending in the front-rear direction, and left and right ends of the transverse rod are hingedly connected with the two transmission bars respectively; the first steering driving device comprises a first motor, a first steering gear box and a first reset torsion spring, the first motor is installed in the inner cavity of the fish-shaped ship body, an output shaft of the first motor is connected with the first steering gear box, the first steering gear box is provided with a connecting column, the last-stage gear of the first steering gear box is provided with a guide column offset from the rotation center, the guide column extends out of the first steering gear box, the connecting column and the guide column are arranged in an up-down direction, the middle position of the longitudinal rod or the transverse rod is rotatably installed on the connecting column, and the guide column is in the guide hole; the first steering gear box is provided with a first limiting block, the first reset torsion spring is sleeved on the guide column or the first limiting block, and two ends of the first reset torsion spring are located on two sides of the first limiting block or the guide column; or the first steering driving device adopts a rudder.

4. A toy fish-shaped boat as defined in claim 2, wherein: The transmission bar is made of a metal wire, left and right ends of the first rotating member and the steering rod are provided with connecting holes, one end of the metal wire is arranged in the connecting hole of the steering rod, and the other end of the metal wire is arranged in the connecting hole of the corresponding first rotating member.

5. A toy fish-shaped boat as defined in claim 2, wherein: Left and right sides of the fish-shaped ship body are respectively provided with mounting holes communicating between the inner cavity and the outside, the two mounting holes are respectively in one-to-one correspondence with the two anal fins, the anal fins extend into the corresponding mounting holes and are connected with the first rotating members, and sealing rings are further arranged between the mounting holes and the anal fins.

6. A toy boat of the type defined in claim 1, characterized in that: The fish-shaped toy ship further comprises two anal fins, which are rotatably arranged at left and right sides of the rear lower part of the fish-shaped ship body; the steering mechanism further comprises a second steering driving device and a second linkage mechanism capable of driving at least one of the anal fins to rotate, the second steering driving device is installed in the inner cavity of the fish-shaped ship body, and the second linkage mechanism is in transmission connection with a power output end of the second steering driving device. The second linkage mechanism comprises at least one second rotating member, the second rotating member is rotatably installed in the inner cavity of the fish-shaped ship body, and at least one of the anal fins is fixedly connected with the second rotating member.

7. A toy boat of the type defined in claim 6, characterised in that: The second steering driving device comprises a second motor, a second steering gear box and a second reset torsion spring, the second motor is installed in the inner cavity of the fish-shaped hull, the output shaft of the second motor is connected with the second steering gear box, and a driving gear is arranged on the second rotating member and engaged with the last-stage gear of the second steering gear box; a second limiting block is arranged on the second steering gear box, the second reset torsion spring is sleeved on the second rotating member or the second limiting block, and the two ends of the second reset torsion spring are located on the two sides of the second limiting block or the second rotating member; or the second steering driving device adopts a rudder.

8. A toy fish-shaped boat as defined in claim 1, wherein: The advancing driving device comprises a third motor, a transmission shaft and a propeller, the third motor is fixedly installed in the inner cavity of the fish-shaped hull, the transmission shaft is in transmission connection with the output shaft of the third motor, and the rear end of the transmission shaft extends out of the rear end of the fish-shaped hull and is connected with the propeller.

9. A toy boat of the type defined in claim 8, characterised in that: The fish-shaped hull is provided with a water inlet hole and a water outlet hole, the advancing driving device further comprises a motor cooling pipe, the motor cooling pipe is wound on the third motor, the water inlet of the motor cooling pipe is in communication with the water inlet hole of the fish-shaped hull, and the water outlet of the motor cooling pipe is in communication with the water outlet hole of the fish-shaped hull.

10. A toy boat of the type defined in claim 1, characterized in that: The fish-shaped toy ship further comprises a remote controller, the inner cavity of the fish-shaped hull is provided with a remote control receiving circuit matched with the remote controller, and the signal input ends of the advancing driving device and the first steering driving device are respectively electrically connected with the corresponding signal output ends of the remote control receiving circuit; and the fish-shaped hull is in the shape of a shark.

Images