A toy fire engine

Abstract

The utility model relates to technical field of simulation toy car especially, a kind of simulation toy fire engine.It uses following technical scheme: including fire engine main body and be set on the water spraying mechanism, pump water mechanism, water storage tank and water source switching mechanism of fire engine main body, the water inlet of pump water mechanism is connected with inlet pipe, and the water outlet of pump water mechanism is connected with water spraying mechanism;Water storage tank is connected with first water supply pipe, and second water supply pipe is provided on fire engine main body, and inlet pipe, first water supply pipe and second water supply pipe are all connected to water source switching mechanism, and water source switching mechanism is used to switch inlet pipe and first water supply pipe or second water supply pipe communication.It is beneficial to have in that: by setting water source switching mechanism on fire engine main body, water storage tank on fire engine main body, water supply pipe connectable with external water source and inlet pipe conveying to water spraying mechanism are connected, the switching connection of inlet pipe and different water supply source (water storage tank and external water source) can be realized, and the playability of toy fire engine is improved.

Description

Technical Field

[0001] This utility model relates to the field of simulation toy vehicle technology, and in particular to a simulation toy fire truck. Background Technology

[0002] Toy cars are a type of toy with high expandability. Among them, various types of simulated engineering vehicles have high playability due to their diverse transmission structures. Simulated fire trucks, in particular, offer high playability because they not only have various mechanical transmission structures but also can spray water. However, currently available simulated fire trucks with water spraying capabilities rely on a single water source, typically a water tank on the truck itself, which somewhat limits their playability. Utility Model Content

[0003] The purpose of this utility model is to provide a simulated toy fire truck, specifically a simulated toy fire truck that can switch between multiple water sources for water supply.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a simulated toy fire truck, comprising a fire truck body and a water spraying mechanism, a water pumping mechanism, a water storage tank, and a water source switching mechanism installed on the fire truck body. The water inlet of the water pumping mechanism is connected to a water inlet pipe, and the water outlet of the water pumping mechanism is connected to the water spraying mechanism. A first water supply pipe is connected to the water storage tank, and a second water supply pipe is installed on the fire truck body. The water inlet pipe, the first water supply pipe, and the second water supply pipe are all connected to the water source switching mechanism, which is used to switch the water inlet pipe to be connected to either the first water supply pipe or the second water supply pipe.

[0005] Specifically, the water source switching mechanism includes a water pipe connector and a switching rotating seat. The water pipe connector is provided with a first connection port, a second connection port, and a third connection port. The switching rotating seat is rotatably connected to the outside of the water pipe connector. The first connection port and the second connection port are respectively located on both sides of the third connection port, and the first connection port, the third connection port, and the second connection port are arranged in an equidistant arc array relative to the rotation axis of the switching rotating seat. The switching rotating seat is correspondingly provided with a first sealing groove, a connecting groove, and a second sealing groove. The switching rotating seat communicates with the first connection port and the third connection port or with the second connection port and the third connection port by rotating the connecting groove. The first connection port, the second connection port, and the third connection port are sequentially connected to the first water supply pipe, the second water supply pipe, and the inlet pipe at one end inside the water pipe connector.

[0006] Furthermore, the fire truck body is equipped with a telescopic ladder frame, and the water spraying mechanism is mounted on the telescopic ladder frame; the fire truck body is also equipped with a lifting and telescopic drive mechanism that is connected to the telescopic ladder frame drive.

[0007] Specifically, the lifting and telescopic drive mechanism includes a drive motor, a lifting drive gear, a lifting drive connecting rod, and a telescopic drive gear set, all of which are housed within the telescopic ladder frame. The drive motor is connected to the lifting drive gear via a reduction gear set, and the lifting drive gear simultaneously meshes with the telescopic drive gear set. An eccentric drive block is mounted on the lifting drive gear and connected to one end of the lifting drive connecting rod, while the other end of the lifting drive connecting rod is rotatably connected to the fire truck body.

[0008] Specifically, the telescopic ladder frame includes a main frame and a telescopic frame. The telescopic frame is slidably and telescopically connected to the main frame. The bottom of the telescopic frame is equipped with a drive rack that meshes with the output gear of the telescopic drive gear set.

[0009] Specifically, the telescopic ladder frame is rotatably connected to the fire truck body via a rotating seat. The rotating seat is rotatably connected to the fire truck body, and a locking gear is provided at the lower end of the rotating seat. An elastic locking component is provided on the fire truck body to cooperate with the locking gear of the rotating seat.

[0010] Specifically, the water pumping mechanism includes a telescopic drive mechanism and a water pumping compression cylinder. The water pumping compression cylinder includes a telescopic push rod and a cylinder body. A piston is provided on the telescopic push rod and can be slidably connected inside the cylinder body. The cylinder body is provided with an inlet and an outlet. The inlet is connected to an inlet pipe through an inlet check valve, and the outlet is connected to the water spraying mechanism through an outlet check valve and a hose. The telescopic drive mechanism is driven by the telescopic push rod.

[0011] Specifically, the telescopic drive mechanism includes a telescopic drive motor, a telescopic drive reduction gear set, and a telescopic drive gear. The telescopic drive gear is provided with an eccentric telescopic drive block that is connected to the telescopic drive rod. The telescopic drive rod is provided with a sliding groove that is rotatably and slidably connected to the eccentric telescopic drive block.

[0012] The beneficial effects of this utility model are as follows: by setting a water source switching mechanism on the fire truck body to connect the water storage tank on the fire truck body, the water supply pipe that can be connected to an external water source, and the water inlet pipe that delivers water to the spraying mechanism, the water inlet pipe can be switched to different water supply sources (water storage tank and external water source); in conjunction with the electrically driven lifting and telescopic ladder frame, the water spraying function of a real fire truck can be simulated to the greatest extent, improving the playability of the toy fire truck. Attached Figure Description

[0013] Appendix Figure 1 This is a schematic diagram of the overall structure of a simulated toy fire truck in the embodiment; Appendix Figure 2 This is a schematic diagram of the internal structure of the telescopic ladder frame and the lifting and telescopic drive mechanism of the simulated toy fire truck in the embodiment. Appendix Figure 3This is a schematic diagram of the internal structure of the telescopic ladder frame of the simulated toy fire truck after it is raised and extended in the embodiment. Appendix Figure 4 This is a schematic diagram of the internal water pumping mechanism of the simulated toy fire truck in the embodiment. Appendix Figure 5 This is a schematic diagram of the internal water pumping mechanism of the simulated toy fire truck in the embodiment from another angle. Appendix Figure 6 This is a schematic diagram showing the specific structure of the connection between the internal water inlet pipe, the first water supply pipe, and the second water supply pipe of the simulated toy fire truck in the embodiment and the water source switching mechanism. Appendix Figure 7 This is a schematic diagram of the split-state structure of the water source switching mechanism in the embodiment; Appendix Figure 8 For the appendix Figure 7 A magnified view of the structure of part A in the middle.

[0014] Explanation of reference numerals in the attached drawings: 1-Fire truck body, 11-Second water supply pipe, 2-Spraying mechanism, 3-Pumping mechanism, 31-Inlet pipe, 32-Telescopic drive mechanism, 321-Telescopic drive motor, 322-Telescopic drive reduction gear set, 323-Telescopic drive gear, 324-Eccentric telescopic drive block, 33-Pump compression cylinder, 331-Telescopic push rod, 332-Cylinder body, 333-Inlet, 334-Outlet, 4-Water storage tank, 41-First water supply pipe, 5-Water source switching mechanism, 51-Water pipe connector, 511-First connection port, 51 2-Second connection port, 513-Third connection port, 514-Fourth connection port, 52-Switching rotary seat, 521-First sealing groove, 522-Second sealing groove, 523-Connecting groove, 6-Telescopic ladder frame, 61-Main frame, 62-Telescopic frame, 7-Lifting telescopic drive mechanism, 71-Drive motor, 72-Lifting drive gear, 721-Eccentric drive block, 73-Lifting drive linkage, 74-Telescopic drive gear set, 741-Output gear, 75-Reduction gear set, 8-Rotating seat, 81-Snap-fit ​​gear, 82-Elastic snap-fit ​​component. Detailed Implementation

[0015] Example 1, referring to Figure 1-8 A simulated toy fire truck includes a fire truck body 1 and a water spraying mechanism 2, a water pumping mechanism 3, a water storage tank 4, and a water source switching mechanism 5 installed on the fire truck body 1. The water inlet of the water pumping mechanism 3 is connected to a water inlet pipe 31, and the water outlet of the water pumping mechanism 3 is connected to the water spraying mechanism 2. A first water supply pipe 41 is connected to the water storage tank 4, and a second water supply pipe 11 is installed on the fire truck body 1. The water inlet pipe 31, the first water supply pipe 41, and the second water supply pipe 11 are all connected to the water source switching mechanism 5. The water source switching mechanism 5 is used to switch the connection between the water inlet pipe 31 and the first water supply pipe 41 or the second water supply pipe 11.

[0016] In this embodiment, the pumping mechanism 3 uses an inlet pipe 31 to obtain water from the storage tank 4 or an external water source via either the first water supply pipe 41 or the second water supply pipe 11, and pumps the water to the spraying mechanism 2 for spraying. The inlet pipe 31, the first water supply pipe 41, and the second water supply pipe 11 are all connected to a water source switching mechanism 5. The water source switching mechanism 5 switches the water source by connecting the inlet pipe 31 to either the first water supply pipe 41 or the second water supply pipe 11. When the inlet pipe 31 is connected to the first water supply pipe 41, the water source is the storage tank 4 connected to the first water supply pipe 41. When the inlet pipe 31 is connected to the second water supply pipe 11, the water source is an external water source connected to the second water supply pipe 11. Water from the external water source is supplied by inserting the free end of the second water supply pipe 11 into the external water source. The water source switching mechanism 5 allows switching between different water sources, simulating the function of a real fire truck that can switch water sources, effectively improving the playability of the simulated toy fire truck.

[0017] Specifically, the water source switching mechanism 5 in this embodiment includes a water pipe connector 51 and a switching rotating seat 52. The water pipe connector 51 is provided with a first connection port 511, a second connection port 512, and a third connection port 513. The switching rotating seat 52 is rotatably connected to the outside of the water pipe connector 51. The first connection port 511 and the second connection port 512 are respectively located on both sides of the third connection port 513, and the first connection port 511, the third connection port 513, and the second connection port 512 are equidistant from the rotation axis of the switching rotating seat 52. The arc array has a first sealing groove 521, a connecting groove 523, and a second sealing groove 522 on the switching rotating seat 52. The switching rotating seat 52 connects to the first connection port 511 and the third connection port 513 or to the second connection port 512 and the third connection port 513 by rotating the connecting groove 523. The first connection port 511, the second connection port 512, and the third connection port 513 are connected to the first water supply pipe 41, the second water supply pipe 11, and the water inlet pipe 31 respectively at one end inside the water pipe connecting seat 51. The first water supply pipe 41, the second water supply pipe 11, and the inlet pipe 31 are respectively connected to the first connection port 511, the second connection port 512, and the third connection port 513 of the water pipe connector 51. The first connection port 511 and the second connection port 512 are located on both sides of the third connection port 513. By rotating the switching rotating seat 52, the connecting groove 523 can be used to selectively connect the first connection port 511 or the second connection port 512 to the third connection port 513, thereby achieving the effect of switching the inlet pipe 31 to connect with the first water supply pipe 41 or the second water supply pipe 11, and realizing the switching of water source. When the connecting groove 523 is aligned with the first connection port 41 and the third connection port 31 to connect them, the second sealing groove 522 is aligned with the second connection port 512 to seal the second connection port 512 and prevent water leakage. Correspondingly, when the connecting groove 523 is aligned with the second connection port 512 and the third connection port 513, the first sealing groove 521 is aligned with the first connection port 511 to perform a sealing function.

[0018] In a further embodiment, the fire truck body 1 is equipped with a telescopic ladder frame 6, and a water spraying mechanism 2 is mounted on the telescopic ladder frame 6; the fire truck body 1 is equipped with a lifting and telescopic drive mechanism 7, which is drivenly connected to the telescopic ladder frame 6. The lifting and telescopic drive mechanism 7 on the fire truck body 1 can drive the telescopic ladder frame 6 to rotate upward and lift it, thus simulating the telescopic ladder function of a real fire truck and improving the playability of the simulated toy fire truck.

[0019] Specifically, the lifting and telescopic drive mechanism 7 includes a drive motor 71, a lifting drive gear 72, a lifting drive connecting rod 73, and a telescopic drive gear set 74. The drive motor 71, the lifting drive gear 72, and the telescopic drive gear set 74 are all installed inside the telescopic ladder frame 6. The drive motor 71 is driven by the lifting drive gear 72 through a reduction gear set 75. The lifting drive gear 72 is also meshed with the telescopic drive gear set 74. An eccentric drive block 721 is provided on the lifting drive gear 72 and is connected to one end of the lifting drive connecting rod 73. The other end of the lifting drive connecting rod 73 is rotatably connected to the fire truck body 1. When the drive motor 71 drives the lifting drive gear 72 to rotate through the reduction gear set 75, the eccentric drive block 721 on the lifting drive gear 72 rotates downward from the highest point. Due to the limiting effect of the lifting drive linkage 73, the lifting drive linkage 73 will push the lifting drive gear 72 upward, thereby driving the telescopic ladder frame 6 to rotate upward and lift. Conversely, when the drive motor 71 drives the lifting drive gear 72 to rotate in the opposite direction through the reduction gear set 75, the eccentric drive block 721 of the lifting drive gear 72 rotates upward from the lowest point, and the telescopic ladder frame 6 rotates downward and falls. The telescopic drive gear set 74 is meshed with the lifting drive gear 72. When the lifting drive gear 72 rotates, it drives the telescopic ladder frame 6 to extend and retract. The telescopic ladder frame 6 has the following structure: it includes a main frame 61 and a telescopic frame 62, which is slidably and telescopically connected to the main frame 61. A drive rack is provided at the bottom of the telescopic frame 62, which meshes with the output gear 741 of the telescopic drive gear set 74. When the lifting drive gear 72 rotates, it drives the output gear 741 of the telescopic drive gear set 74 to rotate, thereby driving the telescopic frame 62 to extend and retract along the main frame 61 through the rack on the telescopic frame 62.

[0020] Furthermore, to further enhance the playability of the simulated fire truck, the telescopic ladder frame 6 is rotatably connected to the fire truck body 1 via a rotating seat 8. The rotating seat 8 is rotatably connected to the fire truck body 2, and a locking gear 81 is provided at the lower end of the rotating seat 8. An elastic locking component 82 is provided on the fire truck body 1, which engages with the locking gear 81 of the rotating seat 8. The telescopic ladder frame 6 can rotate on the fire truck body 1 via the rotating seat 8. The locking gear 81 at the lower end of the rotating seat 8 and the elastic locking component 82 of the fire truck body 1 provide rotational damping for the rotation of the rotating seat 8, thus improving playability. The elastic locking member 82 is rotatably connected to the fire truck body 1 via a torsion spring. When the rotating seat 8 rotates, the teeth of the locking gear 81 will push the elastic locking member 82 to rotate. Under the action of the torsion spring, the elastic locking member 82 provides rotational resistance for the rotation of the locking gear 81. The rotating seat 8 has an opening at its center for installing electrical wires and water hoses for connecting the pump mechanism 3 and the spray mechanism 2. The power supply installed on the fire truck body 1 can supply power to the drive motor 71 inside the telescopic ladder frame 6 via electrical wires.

[0021] Specifically, the pumping mechanism 3 in this embodiment includes a telescopic drive mechanism 32 and a pumping compression cylinder 33. The pumping compression cylinder 33 includes a telescopic push rod 331 and a cylinder 332. A piston is provided on the telescopic push rod 331 and can be slidably connected inside the cylinder 332. The cylinder 332 is provided with an inlet 333 and an outlet 334. The inlet 333 is connected to the inlet pipe 31 through an inlet check valve, and the outlet 334 is connected to the spraying mechanism 2 through an outlet check valve and a water delivery hose. The telescopic drive mechanism 32 is driven by the telescopic push rod 331. When the telescopic push rod 331 and the piston move backward, water enters the pumping compression cylinder 33 through the inlet 333 via the inlet pipe 31. When the telescopic push rod 331 and the piston move forward, the water in the pumping compression cylinder 33 is sprayed out from the outlet through the spraying mechanism 2. The telescopic drive mechanism 32 is used to drive the telescopic push rod 331 to reciprocate and extend back and forth to achieve continuous water spraying.

[0022] The telescopic drive mechanism 32 includes a telescopic drive motor 321, a telescopic drive reduction gear set 322, and a telescopic drive gear 323. An eccentric telescopic drive block 324 is mounted on the telescopic drive gear 323 and is driven by the telescopic drive rod 331. The telescopic drive rod 331 has a sliding groove that allows it to rotatably and slidably connect with the eccentric telescopic drive block 324. The telescopic drive motor 321 drives the telescopic drive gear 323 to rotate continuously via the telescopic drive reduction gear set 322. The eccentric telescopic drive block 324 on the telescopic drive gear 323 exhibits a reciprocating motion in the horizontal direction, thereby driving the telescopic push rod 331 to move back and forth reciprocally.

[0023] Of course, the above are only preferred embodiments of this utility model and are not intended to limit the scope of application of this utility model. Therefore, any equivalent changes made to the principle of this utility model should be included within the protection scope of this utility model.

Claims

1. A simulated toy fire truck, characterized in that: The system includes a fire truck body and a water spraying mechanism, a water pumping mechanism, a water storage tank, and a water source switching mechanism installed on the fire truck body. The water inlet of the water pumping mechanism is connected to a water inlet pipe, and the water outlet of the water pumping mechanism is connected to the water spraying mechanism. A first water supply pipe is connected to the water storage tank, and a second water supply pipe is installed on the fire truck body. The water inlet pipe, the first water supply pipe, and the second water supply pipe are all connected to the water source switching mechanism, which is used to switch the connection between the water inlet pipe and the first water supply pipe or the second water supply pipe.

2. The simulated toy fire truck according to claim 1, characterized in that: The water source switching mechanism includes a water pipe connector and a switching rotating seat. The water pipe connector is provided with a first connection port, a second connection port, and a third connection port. The switching rotating seat is rotatably connected to the outside of the water pipe connector. The first connection port and the second connection port are respectively located on both sides of the third connection port, and the first connection port, the third connection port, and the second connection port are arranged in an equidistant arc array relative to the rotation axis of the switching rotating seat. The switching rotating seat is correspondingly provided with a first sealing groove, a connecting groove, and a second sealing groove. The switching rotating seat communicates with the first connection port and the third connection port or with the second connection port and the third connection port through rotating the connecting groove. The first connection port, the second connection port, and the third connection port are sequentially connected to the first water supply pipe, the second water supply pipe, and the inlet pipe at one end inside the water pipe connector.

3. The simulated toy fire truck according to claim 1, characterized in that: The fire truck body is equipped with a telescopic ladder frame, and the water spraying mechanism is mounted on the telescopic ladder frame; the fire truck body is equipped with a lifting and telescopic drive mechanism that is connected to the telescopic ladder frame.

4. A simulated toy fire truck according to claim 3, characterized in that: The lifting and telescopic drive mechanism includes a drive motor, a lifting drive gear, a lifting drive connecting rod, and a telescopic drive gear set, all of which are housed within the telescopic ladder frame. The drive motor is connected to the lifting drive gear via a reduction gear set, and the lifting drive gear simultaneously meshes with the telescopic drive gear set. An eccentric drive block is mounted on the lifting drive gear and connected to one end of the lifting drive connecting rod, while the other end of the lifting drive connecting rod is rotatably connected to the fire truck body.

5. A simulated toy fire truck according to claim 4, characterized in that: The telescopic ladder frame includes a main frame and a telescopic frame. The telescopic frame is slidably and telescopically connected to the main frame. A drive rack is provided at the bottom of the telescopic frame and meshes with the output gear of the telescopic drive gear set.

6. A simulated toy fire truck according to claim 4, characterized in that: The telescopic ladder frame is rotatably connected to the fire truck body via a rotating seat. The rotating seat is rotatably connected to the fire truck body, and a snap-fit ​​gear is provided at the lower end of the rotating seat. An elastic snap-fit ​​component is provided on the fire truck body to cooperate with the snap-fit ​​gear of the rotating seat.

7. A simulated toy fire truck according to claim 1, characterized in that: The water pumping mechanism includes a telescopic drive mechanism and a water pumping compression cylinder. The water pumping compression cylinder includes a telescopic push rod and a cylinder body. A piston is provided on the telescopic push rod and can be slidably connected inside the cylinder body. An inlet and an outlet are provided on the cylinder body. The inlet is connected to an inlet pipe through an inlet check valve, and the outlet is connected to a water spraying mechanism through an outlet check valve and a hose. The telescopic drive mechanism is driven by the telescopic push rod.

8. A simulated toy fire truck according to claim 7, characterized in that: The telescopic drive mechanism includes a telescopic drive motor, a telescopic drive reduction gear set, and a telescopic drive gear. An eccentric telescopic drive block is provided on the telescopic drive gear and is driven by the telescopic drive rod. A sliding groove is provided on the telescopic drive rod and is rotatably and slidably connected to the eccentric telescopic drive block.

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