A new toy crab structure

Abstract

The utility model discloses a novel toy crab structure, including fixed shell, as main support structure, walking subassembly is provided with two, symmetry sets up in the both sides of fixed shell, including first motor, first motor output shaft installs first driving gear, and first driving gear is driven first driven gear through first gear set, the core of the utility model lies in walking subassembly and bionic crab leg subassembly are designed as two sets of completely independent drive system, and are independently driven by first motor and second motor respectively. When bionic crab leg is stuck in complex terrain, second motor can stop or block, but first motor and walking wheel can still operate normally, drive toy whole movement to separate from the obstacle, when walking wheel is stuck, bionic crab leg still can make the action of rowing, and assist to get out of trouble. This fundamentally solves the fatal defect of traditional design, greatly improves the passability and environmental adaptability of toy.

Description

Technical Field

[0001] This utility model relates to the field of toy technology, and in particular to a novel toy crab structure. Background Technology

[0002] Currently, the most common biomimetic toy crabs on the market typically employ a linked design for their walking and leg movements. Specifically, a crankshaft is placed between two walking wheels, and the crab's biomimetic legs are mounted on the journals of this crankshaft. This structure requires only one motor, which drives the walking wheels to rotate via a gear set. The walking wheels then drive the crankshaft to rotate, and the movement of the crankshaft ultimately forces the biomimetic legs to perform reciprocating movements that simulate crawling. While this single-motor driven linkage scheme has certain advantages in reducing manufacturing costs and controlling energy consumption, and also achieves a basic biomimetic walking effect, its mechanical structure tightly couples the walking system and the leg system into a single unit.

[0003] However, this existing technical solution has a significant drawback: because the walking wheels and bionic legs are mechanically linked by a rigid crankshaft, when the toy is moving on complex terrain, if its bionic legs get stuck on an obstacle, the crankshaft will immediately stop rotating, which in turn will lock the walking wheels, causing the entire toy to lose its ability to move and become stuck. Conversely, if the walking wheels get stuck, the movement of the bionic legs will also stop. This interconnected failure mode significantly reduces the toy's passability and reliability, and also affects the user experience. In addition, the single motor limits the independent control of the legs and walking movements, resulting in a single movement posture, lack of flexibility, and difficulty in achieving more complex bionic behaviors. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a novel toy crab structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A novel toy crab structure includes a fixed shell as the main support structure; two walking components symmetrically arranged on both sides of the fixed shell, including a first motor, the output shaft of which is equipped with a first driving gear, which drives a first driven gear through a first gear set, the driven gear being fixed to one side of a walking wheel, and a through hole at the center of the walking wheel; and a biomimetic crab leg assembly mounted on the fixed shell, including a second motor, the output shaft of which is equipped with a second driving gear, which drives a second driven gear through a second gear set, a drive shaft being fixed to one side of the second driven gear, the drive shaft rotating through the through hole, the drive shaft being fixedly connected to the center of a first turntable, and two second turntables being fixed to the side of the first turntable away from the drive shaft, the two second turntables being fixed together by connecting columns, the centerlines of the multiple connecting columns being non-coincident, and biomimetic crab legs being rotatably mounted on the connecting columns, with mounting holes at the center of the biomimetic crab legs.

[0006] Furthermore, it also includes a bionic eye atomizer, used to create water mist and enhance the lighting atmosphere, located inside the spray nozzle; and a bubble machine, used to generate bubbles, located on top of the fixed shell.

[0007] Furthermore, it also includes a front shell assembly, which has a mounting position for fixing the fixed shell. The front shell assembly includes a bionic front shell, which has a PCB, an opening corresponding to the working end of the bubble machine, and a bionic eye atomizer.

[0008] Furthermore, it also includes a rear shell assembly that matches the front shell assembly. The rear shell assembly includes a bionic rear shell with a battery box. The bionic rear shell has a water inlet and a liquid injection port. The water inlet corresponds to the water injection port of the bionic eye atomizer. After liquid is injected, the liquid injection port is connected to the bubble machine through a hose, thereby generating bubbles from the opening.

[0009] Furthermore, the battery box is electrically connected to the PCB, the first motor, the second motor, the bubble machine, the LED light group, and the atomizing sheet.

[0010] Furthermore, the bionic eye atomizer includes a front bionic lampshade and a rear bionic lampshade. The front and rear bionic lampshades are fixed to each other and form a cavity inside. An atomizing plate and an LED light assembly are installed in the cavity. The front bionic lampshade has a spray nozzle, and the rear bionic lampshade has a water inlet. The atomizing plate and the LED light assembly are electrically connected to the PCB. The spray nozzle and the front shell assembly are located on the same side.

[0011] This utility model has the following beneficial effects: The core of this invention lies in designing the walking component and the bionic crab leg component as two completely independent drive systems, driven independently by a first motor and a second motor, respectively. When the bionic crab leg gets stuck in complex terrain, the second motor may stop or stall, but the first motor and the walking wheels can still operate normally, driving the toy to move as a whole and thus escape the obstacle; conversely, when the walking wheels get stuck, the bionic crab leg can still make paddling movements to assist in getting out of trouble. This fundamentally solves the fatal flaw of traditional designs where everything gets stuck, greatly improving the toy's passability and environmental adaptability. Attached Figure Description

[0012] Figure 1 A schematic diagram of the exploded structure of a toy crab. Figure 2 A schematic diagram of the connection structure between the walking component and the biomimetic crab leg component; Figure 3 This is a schematic diagram of the walking component structure; Figure 4 This is one of the schematic diagrams of a biomimetic crab leg component. Figure 5 This is the second schematic diagram of the biomimetic crab leg component. Figure 6 This is a schematic diagram of a biomimetic crab leg structure. Figure 7 An exploded view of the drive shaft, through hole, and first turntable; Figure 8 This is a schematic diagram of the front shell assembly structure; Figure 9 This is a schematic diagram of the rear shell assembly structure; Figure 10 A structural diagram of a toy crab; Figure 11 This is an exploded view of a bionic eye atomizer.

[0013] In the diagram: 1. Fixed housing; 2. Bionic eye atomizer; 201. Front bionic lampshade; 202. Spray nozzle; 203. Atomizing plate; 204. LED light assembly; 205. Rear bionic lampshade; 206. Water inlet; 3. Walking assembly; 301. First motor; 302. First driving gear; 303. First gear set; 304. First driven gear; 305. Walking wheel; 305a. Through hole; 4. Bionic crab leg assembly; 401. Second motor; 402. 403. Second driving gear; 404. Second driven gear; 405. Drive shaft; 406. First turntable; 407. Connecting column; 408. Second turntable; 409. Bionic crab leg; 409a. Mounting hole; 5. Front shell assembly; 501. Bionic front shell; 502. PCB; 503. Opening; 6. Rear shell assembly; 601. Bionic rear shell; 602. Battery box; 603. Water inlet; 604. Liquid injection port; 7. Bubble machine. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] like Figures 1 to 11 As shown, this utility model provides a novel toy crab structure, the core design of which lies in the independent drive of walking and leg movements.

[0016] The fixed shell 1 serves as the core load-bearing frame; two walking components 3 are symmetrically installed on the left and right sides of the fixed shell 1; each walking component 3 includes a first motor 301. After the first motor 301 is started, it drives the first driving gear 302 on its output shaft to rotate. The first driving gear 302 transmits power to the first driven gear 304 through meshing with the first gear set 303, and finally drives the walking wheel 305 fixed to the first driven gear 304 to roll on the ground, realizing the basic movement function of the toy; a through hole 305a is opened at the center of the walking wheel 305.

[0017] The biomimetic crab leg assembly 4 is also mounted on the fixed shell 1, located between the two walking assemblies 3; it includes an independent second motor 401; when the second motor 401 is working, it drives the second driving gear 402 on its output shaft, and the second driving gear 402 transmits power to the second driven gear 404 through meshing with the second gear set 403; the second driven gear 404 is fixedly connected to a transmission shaft 405; the transmission shaft 405 extends forward and passes precisely and rotatably through the through hole 305a in the center of the aforementioned walking wheel 305; this design cleverly utilizes the central space of the walking wheel, achieving a compact structure.

[0018] The front end of the drive shaft 405 is fixedly connected to the center of the first turntable 406. On the front side of the first turntable 406, two second turntables 408 are fixedly connected to each other by several connecting posts 407. The key point is that the axis lines of these connecting posts 407 do not coincide. They are eccentric relative to the axis of the drive shaft 405, thus forming a crankshaft-like structure. Multiple biomimetic crab legs 409 are rotatably mounted on these connecting posts 407 through the central mounting hole 409a. When the second motor 401 drives the first turntable 406 and the second turntable 408 to rotate through the drive shaft 405, the eccentric connecting posts 407 will make circular motion, thereby driving the lower end of the biomimetic crab legs 409 to produce a reciprocating paddling motion that simulates the crawling of a crab.

[0019] As an added feature to enhance the fun, a bionic eye atomizer 2 is installed at the top between the front shell assembly 5 and the rear shell assembly 6. The bionic eye atomizer 2 is used to simulate the eyes of a crab. The overall frame is composed of a front bionic lampshade 201 and a rear bionic lampshade 205. A cavity is formed between the front bionic lampshade 201 and the rear bionic lampshade 205, which can hold water. An atomizing plate 203 and an LED light group 204 are installed inside the cavity. A water inlet 206 is set on the rear bionic lampshade 205 to inject water into the cavity. Water is injected into the cavity through the water inlet 206. Under the action of the atomizing plate 203, the water begins to atomize. The water mist overflows through the spray nozzle 202 set on the front bionic lampshade 201. At the same time, the LED light group 204 emits light to add to the fun.

[0020] Regarding the overall shell and circuitry, the front shell assembly 5 is connected to the fixed shell 1 via its mounting position. The front shell assembly 5 includes a bionic front shell 501, on which a PCB 502 is mounted. The rear shell assembly 6 is fastened to the front shell assembly 5 to form a complete product shell. The rear shell assembly 6 includes a bionic rear shell 601 and a battery box 602 mounted thereon. The battery box 602 is electrically connected to the PCB 502, the first motor 301, the second motor 401, the bubble machine 7, the LED light group 204, and the atomizing plate 203 via wires to provide them with power. At the same time, the PCB 502 is electrically connected to the first motor 301 and the second motor 401, and is responsible for independently starting, stopping, and speeding the two motors. This is the control basis for realizing independent operation of walking and leg movements.

[0021] The working principle of this utility model is as follows: When in use, the battery is inserted into the battery box 602, and the first motor 301 and the second motor 401 are started through the PCB 502; the first motor 301 independently drives the walking wheels 305 on both sides to rotate, so that the toy moves forward or backward; at the same time, the second motor 401 independently drives the transmission shaft 405 and the crankshaft mechanism composed of the first turntable 406, the second turntable 408 and the connecting column 407 to rotate, so that all the bionic crab legs 409 make coordinated crawling and paddling movements; the movements of the two systems do not interfere with each other, which greatly reduces the risk of jamming and improves the reliability of the toy.

[0022] In another embodiment, a bubble machine 7 is also provided on the fixed shell 1. A liquid injection port 604 for adding bubble liquid to the bubble machine 7 is provided on the bionic rear shell 601. The liquid injection port 604 is connected to the bubble machine 7 through a flexible pipe. An opening 503 is also provided on the bionic front shell 501. The opening 503 corresponds to the output port of the bubble machine 7. The bubble machine 7 is electrically connected to the PCB 502. The operation of the bubble machine 7 can be controlled through the PCB 502, so that bubbles are emitted from the opening 503 of the bionic front shell 501 to increase the fun. When it is necessary to inject bubble liquid into the bubble machine 7, it is added through the liquid injection port 604 provided on the bionic rear shell 601. The liquid injection port 604 is connected to the bubble machine 7.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A novel toy crab structure, characterized in that, The system includes a fixed housing (1) as the main support structure; two walking components (3) are provided, symmetrically arranged on both sides of the fixed housing (1), including a first motor (301), the output shaft of the first motor (301) is equipped with a first driving gear (302), the first driving gear (302) drives a first driven gear (304) through a first gear set (303), the first driven gear (304) is fixed on one side of a walking wheel (305), and a through hole (305a) is provided at the center of the walking wheel (305); and a biomimetic crab leg component (4) is provided on the fixed housing (1), including a second motor (401), the output shaft of the second motor (401) is equipped with a second driving gear (402), the second driving gear (4 ... the second driven gear (305) drives a first driven gear (302) through a first gear set (303), the first driven gear (304) is fixed on one side of a walking wheel (305), the second driven gear (305) is fixed on one side of a walking wheel (305), the second driven gear (305) is fixed on one side of a walking wheel (305), the second driven gear (305) drives a first driven gear (302) through a first driven gear (302), the The second gear set (403) drives the second driven gear (404). A drive shaft (405) is fixed on one side of the second driven gear (404). The drive shaft (405) rotates through the through hole (305a). The drive shaft (405) is fixedly connected to the center of the first turntable (406). A second turntable (408) is fixed on the side of the first turntable (406) away from the drive shaft (405). Multiple second turntables (408) are provided. Multiple second turntables (408) are fixed together by connecting columns (407). The axis lines of the multiple connecting columns (407) are not coincident. The connecting columns (407) rotate. A bionic crab leg (409) is installed. An installation hole (409a) is provided in the center of the bionic crab leg (409).

2. The novel toy crab structure according to claim 1, characterized in that, It also includes a bionic eye atomizer (2) for creating water mist and enhancing the lighting atmosphere, located on top between the front shell assembly (5) and the rear shell assembly (6), and a bubble machine (7) for generating bubbles, located on top of the fixed shell (1).

3. The novel toy crab structure according to claim 1, characterized in that, It also includes a front shell assembly (5), which has a mounting position for fixing the fixed shell (1). The front shell assembly (5) includes a bionic front shell (501), which has a PCB (502) and an opening (503) corresponding to the working end of the bubble machine (7) and a bionic eye atomizer (2).

4. The novel toy crab structure according to claim 3, characterized in that, It also includes a rear shell assembly (6) that matches the front shell assembly (5). The rear shell assembly (6) includes a bionic rear shell (601). A battery box (602) is provided on the bionic rear shell (601). The bionic rear shell (601) is provided with a water inlet (603) and a liquid injection port (604). The water inlet (603) corresponds to the water injection port (206) of the bionic eye atomizer (2). After liquid is injected into the liquid injection port (604), it is connected to the bubble machine (7) through a hose, thereby generating bubbles from the opening 503.

5. The novel toy crab structure according to claim 4, characterized in that, The battery box (602) is electrically connected to the PCB (502), the first motor (301), the second motor (401), the bubble machine (7), the LED light group (204), and the atomizing sheet (203).

6. The novel toy crab structure according to claim 3, characterized in that, The bionic eye atomizer (2) includes a front bionic lampshade (201) and a rear bionic lampshade (205). The front bionic lampshade (201) and the rear bionic lampshade (205) are fixed to each other and form a cavity inside. An atomizing plate (203) and an LED lamp group (204) are installed in the cavity. The front bionic lampshade (201) has a spray nozzle (202), and the rear bionic lampshade (205) has a water inlet (206). The atomizing plate (203) and the LED lamp group (204) are electrically connected to a PCB (502). The spray nozzle (202) and the front shell assembly (5) are located on the same side.

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