Hairy crab model

Abstract

The utility model relates to the field of models, in particular to a hairy crab model which comprises a connecting assembly, a head mechanism, a foot mechanism, a chest mechanism and an abdomen mechanism. The side portion of the connecting assembly is provided with a side connecting position, the rear end of the connecting assembly is provided with a rear hinge position, the head mechanism is detachably connected with the connecting assembly through a first detachable connecting piece, the end of the foot mechanism is fixedly connected to the side portion of the connecting assembly, and the chest mechanism is fixedly connected to the bottom of the connecting assembly. One end of the abdomen mechanism is hinged to the rear end of the connecting assembly through a rear hinge position, the abdomen mechanism is limited through the second detachable connecting assembly, it is guaranteed that the whole body has good structural strength, and mutual connection is more stable.

Description

Technical Field

[0001] This utility model relates to the field of models, specifically to a model of a Chinese mitten crab. Background Technology

[0002] Toy and craft models are models designed specifically for toy and craft enthusiasts or collectors, cleverly combining the precision of models with the fun of toys. These models typically present various objects, characters, or scenes in scaled-down or full-scale form, retaining the characteristics of the original while incorporating elements suitable for play or viewing at all ages. Toy and craft models can be made using various materials and techniques, such as 3D printing, plastic injection molding, metal die casting (casting), wood carving, or paper folding, to cater to consumers of different ages and interests. Their size, shape, and color may vary depending on the design and purpose, but all aim to provide visual pleasure and interactive enjoyment. Beyond showcasing their unique creative and aesthetic value as toys and crafts, with the development of model realism, mechanical skeletal systems are being implanted into the structure through engineering technology, combined with AI (artificial intelligence) technology and highly sensitive sensor arrays, forming bionic robots. These robots possess intelligent behavioral patterns and strong environmental awareness.

[0003] For example, the utility model patent with application number KR2020010024429, entitled "Crab-shaped Connecting Toy", uses a slot structure to connect the various parts. However, the connection between the parts is not very stable and they are prone to falling apart during use. In addition, this solution cannot simulate the process of disassembling a crab, and its educational effect is poor. Utility Model Content

[0004] The purpose of this invention is to provide a crab model that improves upon the conventional crab model which uses a slot structure to connect various components. However, the connection between components is not very stable and is prone to falling apart during use.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A model of a Chinese mitten crab includes connecting components, a head mechanism, a foot mechanism, a thorax mechanism, and an abdominal mechanism;

[0007] The side of the connecting component is provided with a side connection position, and the end of the foot mechanism is connected to the side connection position;

[0008] The head mechanism is covered on the top surface of the connecting component, and a first detachable connector is provided between the head mechanism and the connecting component;

[0009] The chest mechanism is fixed to the bottom surface of the connecting assembly;

[0010] The rear end of the connecting assembly is provided with a rear hinging position, the rear end of the abdomen mechanism is hinged on the rear hinging position, and the abdomen mechanism is covered on the bottom of the chest mechanism, and the second dismounting connecting piece is arranged between the abdomen mechanism and the connecting assembly.

[0011] Further, the top edge of the connecting assembly is provided with a plurality of first magnetic attraction positions which are spaced from each other, the bottom surface of the head mechanism is provided with a plurality of upper magnetic attraction positions which correspond to the first magnetic attraction positions one by one, the first dismounting connecting piece comprises a plurality of upper magnetic attraction members which are respectively fixed on the first magnetic attraction positions and the upper magnetic attraction positions, and the corresponding upper magnetic attraction members are attracted to each other.

[0012] Further, the middle part of the connecting assembly is provided with a second magnetic attraction position, the abdomen mechanism is provided with a lower magnetic attraction position which corresponds to the second magnetic attraction position, the second dismounting connecting piece comprises a plurality of lower magnetic attraction members which are respectively fixed on the second magnetic attraction position and the lower magnetic attraction position, and the lower magnetic attraction members are attracted to each other.

[0013] Further, the connecting assembly comprises a ring-shaped main body, a left cheek plate and a right cheek plate.

[0014] The inner ring surface of the ring-shaped main body is provided with a connecting section,

[0015] The inner ring surface of the ring-shaped main body is provided with two groups of left cheek connecting plates and right cheek connecting plates, the two groups of left cheek connecting plates and right cheek connecting plates are symmetrically distributed on the two sides of the connecting section, the bottom surface of the left cheek plate and the right cheek plate is provided with a downward extending cheek fixing plate, the cheek fixing plate corresponds to the left cheek connecting plate and the right cheek connecting plate one by one, and is respectively fixed with the left cheek connecting plate and the right cheek connecting plate.

[0016] Further, the head mechanism comprises a head body, an antenna assembly, an eye assembly, a large jaw assembly and a front villus assembly,

[0017] The front end of the head body is provided with an antenna insertion hole and an eye insertion hole, the antenna assembly and the eye assembly are respectively inserted into the antenna insertion hole and the eye insertion hole, the bottom surface of the head body is provided with a large jaw connecting part at the front end, the large jaw assembly is fixed on the two sides of the large jaw connecting part, and the bottom of the head body is provided with a villus mounting plate on the two sides.

[0018] Further, the foot mechanism comprises a pincer foot, a first foot, a second foot, a third foot and a fourth foot.

[0019] The pincer foot comprises a pincer seat, a first pincer arm, a second pincer arm, a pincer part and a pincer claw which are connected in sequence, and the pincer seat is fixedly connected to the frontmost side connecting position.

[0020] The first foot, the second foot, the third foot, and the fourth foot each include a foot base, a first connecting part, a second connecting part, a third connecting part, and a last foot connected in sequence. The foot bases of the first foot, the second foot, the third foot, and the fourth foot are respectively connected to the side connecting positions from the front end to the rear end.

[0021] Furthermore, the chest mechanism includes a sternal plate and a maxillary foot assembly, with a connecting post on the top surface of the sternal plate, the connecting post abutting against and being fixedly connected to the connecting section;

[0022] The front end of the top of the breast plate is provided with a second jaw foot connector and a third jaw foot connector. The jaw foot assembly includes a second jaw foot and a third jaw foot. The ends of the second jaw foot and the third jaw foot are respectively rotatably connected to the second jaw foot connector and the third jaw foot connector.

[0023] Furthermore, the ends of the second and third jaw feet are provided with connecting ball portions, and the second and third jaw foot connecting seats are provided with spherical connecting grooves. The connecting ball portions are embedded in the spherical connecting grooves. Both the connecting ball portions and the spherical connecting grooves are provided with jaw foot perforations. Jaw foot connecting ropes are threaded through the jaw foot perforations, and the two ends of the jaw foot connecting ropes are connected to each other.

[0024] Furthermore, the abdominal structure includes a first abdominal segment, a second abdominal segment, a third abdominal segment, a fourth abdominal segment, a fifth abdominal segment, and a tail segment arranged sequentially;

[0025] The first, second, third, fourth, fifth and tail segments are all provided with abdominal segment perforations. Abdominal segment connecting ropes are threaded through the abdominal segment perforations of the first, second, third, fourth, fifth and tail segments, and the two ends of the abdominal segment connecting ropes are connected to each other.

[0026] The first abdominal segment is provided with an abdominal segment connecting plate, which is hinged to the rear hinge position.

[0027] Furthermore, the lower magnetic attraction position is located on the top surface of the fourth abdominal segment.

[0028] By adopting the above technical solution, this utility model has the following advantages compared with the prior art:

[0029] 1. The head mechanism is detachably connected to the connecting assembly via the first detachable connector. The end of the foot mechanism is fixedly connected to the side of the connecting assembly. The chest mechanism is fixedly connected to the bottom of the connecting assembly. One end of the abdominal mechanism is hinged to the rear end of the connecting assembly via the rear hinge. The abdominal mechanism is limited by the second detachable connector to ensure that the whole structure has good structural strength and the connection between them is more stable.

[0030] 2. The head mechanism and the abdominal mechanism are limited by the first disassembly and connection components and the second disassembly and connection components, which reduces the overall assembly and maintenance difficulty. At the same time, it better displays the internal structure of the hairy crab, making it easier for users to simulate the crab disassembly process and has a better educational effect. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the hairy crab model described in this utility model;

[0032] Figure 2 This is an exploded structural diagram of the hairy crab model described in this utility model;

[0033] Figure 3 This is a schematic diagram of the internal structure of the hairy crab model described in this utility model;

[0034] Figure 4 This is a partial structural schematic diagram of the hairy crab model described in this utility model;

[0035] Figure 5 This is an exploded view of the connecting components of the crab model described in this utility model;

[0036] Figure 6 This is a schematic diagram of the first exploded structure of the head mechanism of the crab model described in this utility model;

[0037] Figure 7 This is a schematic diagram of the bottom structure of the head component of the crab model described in this utility model;

[0038] Figure 8 This is a schematic diagram of the second exploded structure of the head mechanism of the crab model described in this utility model;

[0039] Figure 9 This is a schematic diagram of the claw structure of the mitten crab model described in this utility model;

[0040] Figure 10 This is a schematic diagram of the exploded claw structure of the mitten crab model described in this utility model;

[0041] Figure 11 This is a schematic diagram of the first leg structure of the crab model described in this utility model;

[0042] Figure 12 This is a schematic diagram of the exploded structure of the first leg of the hairy crab model described in this utility model;

[0043] Figure 13 This is a schematic diagram of the second leg structure of the crab model described in this utility model;

[0044] Figure 14 This is a schematic diagram of the exploded structure of the second leg of the hairy crab model described in this utility model;

[0045] Figure 15 This is a schematic diagram of the third leg structure of the crab model described in this utility model;

[0046] Figure 16 This is a schematic diagram of the exploded structure of the third leg of the hairy crab model described in this utility model;

[0047] Figure 17 This is a schematic diagram of the fourth leg structure of the crab model described in this utility model;

[0048] Figure 18 This is a schematic diagram of the exploded structure of the fourth leg of the hairy crab model described in this utility model;

[0049] Figure 19 This is a schematic diagram of the thorax mechanism of the crab model described in this utility model;

[0050] Figure 20 This is an exploded view of the chest mechanism of the crab model described in this utility model;

[0051] Figure 21 This is a schematic diagram of the abdominal structure connection of the crab model described in this utility model;

[0052] Figure 22 This is a schematic diagram of the abdominal structure of the crab model described in this utility model;

[0053] Figure 23 This is an exploded structural diagram of the abdominal mechanism of the crab model described in this utility model.

[0054] Explanation of reference numerals in the attached figures:

[0055] 1. Connecting assembly; 11. Ring-shaped body; 111. Connecting segment; 1111. Second magnetic attachment position; 1112. Chest connecting seat; 112. Left cheek connecting plate; 113. Right cheek connecting plate; 114. Notch; 115. Foot connecting plate; 12. Left cheek plate; 121. First magnetic attachment position; 122. Cheek fixing plate; 13. Right cheek plate; 14. Rear hinge position;

[0056] 2. Head mechanism; 21. Head body; 211. Upper magnetic attachment position; 212. Antenna insertion hole; 213. Eye insertion hole; 214. Mandible connection part; 215. Plush mounting plate; 22. Antenna assembly; 23. Eye assembly; 24. Mandible assembly; 25. Front plush assembly;

[0057] 3. Foot mechanism; 31. Pincer foot; 311. Pincer base; 312. First pincer arm; 313. Second pincer arm; 314. Pincer part; 315. Pincer claw; 316. Pincer foot connecting plate; 32. First foot; 321. Foot base; 322. First connecting part; 323. Second connecting part; 324. Third connecting part; 325. Last foot; 326. Rear foot connecting plate; 33. Second foot; 34. Third foot; 35. Fourth foot;

[0058] 4. Chest mechanism; 41. Chest plate; 411. Connecting column; 412. Relief part; 413. Second jaw foot connector; 4131. Spherical connecting groove; 4132. Jaw foot perforation; 414. Third jaw foot connector; 42. Jaw foot assembly; 421. Second jaw foot; 4211. Connecting ball part; 422. Third jaw foot; 43. Jaw foot connecting rope;

[0059] 5. Abdominal structure; 51. First abdominal segment; 511. Abdominal segment perforation; 512. Abdominal segment connecting plate; 52. Second abdominal segment; 53. Third abdominal segment; 54. Fourth abdominal segment; 541. Lower magnetic attraction position; 55. Fifth abdominal segment; 56. Tail segment; 57. Abdominal segment connecting rope. Detailed Implementation

[0060] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0061] Additionally, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are all based on the orientation or positional relationship shown in the accompanying drawings. They are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element of this utility model must have a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0062] When an element is referred to as being "fixed to," "set on," or "contained on" another element, it can be directly on or indirectly on that other element. When an element is referred to as being "connected to," it can be directly connected to or indirectly connected to that other element.

[0063] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0064] Example

[0065] Please refer to Figures 1-23 As shown, this embodiment provides a Chinese mitten crab model, including a connecting component 1, a head mechanism 2, a foot mechanism 3, a thorax mechanism 4, and an abdominal mechanism 5. The connecting component 1 has a side connection position, and the end of the foot mechanism 3 is connected to the side connection position. The head mechanism 2 covers the top surface of the connecting component 1, and a first detachable connector is provided between the head mechanism 2 and the connecting component 1. The thorax mechanism 4 is fixed to the bottom surface of the connecting component 1. The rear end of the connecting component 1 has a rear hinge position 14, and the rear end of the abdominal mechanism 5 is hinged to the rear hinge position 14 and covers the bottom of the thorax mechanism 4. A second detachable connector is provided between the abdominal mechanism 5 and the connecting component 1.

[0066] The head mechanism 2 is detachably connected to the connecting assembly 1 via the first detachable connector. The end of the foot mechanism 3 is fixedly connected to the side of the connecting assembly 1. The chest mechanism 4 is fixedly connected to the bottom of the connecting assembly 1. One end of the abdominal mechanism 5 is hinged to the rear end of the connecting assembly 1 via the rear hinge 14. The abdominal mechanism 5 is limited by the second detachable connector 1 to ensure that the whole structure has good structural strength and the connection between them is more stable. Furthermore, the head mechanism 2 and the abdominal mechanism 5 are limited by the first and second detachable connectors 1, which reduces the overall assembly and maintenance difficulty. At the same time, it better displays the internal structure of the hairy crab and has a better educational effect.

[0067] Please refer to Figures 2-5As shown, specifically, the top edge of the connecting component 1 is provided with multiple mutually spaced first magnetic attraction positions 121, and the bottom surface of the head mechanism 2 is provided with upper magnetic attraction positions 211 corresponding to the first magnetic attraction positions 121 one by one. The first disassembly connector includes multiple upper magnetic attraction components, which are respectively fixed on the first magnetic attraction positions 121 and the upper magnetic attraction positions 211, and the corresponding upper magnetic attraction components attract each other. In this embodiment, there are three first magnetic attraction positions 121 and three upper magnetic attraction positions 211, which are distributed on both sides and the rear side of the connecting component 1, and six upper magnetic attraction components, which are respectively fixed on the first magnetic attraction positions 121 and the upper magnetic attraction positions 211. The first magnetic attraction positions 121 and the upper magnetic attraction positions 211 form a triangular limiting structure to stably limit the head mechanism 2 and prevent the head mechanism 2 from falling off. Similarly, more first magnetic attraction positions 121 and upper magnetic attraction positions 211 can be provided.

[0068] Specifically, the connecting component 1 has a second magnetic attraction position 1111 in the middle, and the abdominal mechanism 5 has a lower magnetic attraction position 541 corresponding to the second magnetic attraction position 1111. The second detachable connecting component includes multiple lower magnetic attraction components, which are respectively fixed to the second magnetic attraction position 1111 and the lower magnetic attraction position 541, and the lower magnetic attraction components attract each other. The lower magnetic attraction components limit the abdominal mechanism 5, preventing one end of the abdominal mechanism 5 from being in a hinged state while the other end falls off, affecting the viewing effect. In this embodiment, both the upper and lower magnetic attraction components are magnets; similarly, other detachable connecting structures can be used.

[0069] Specifically, the connecting component 1 includes an annular body 11, a left cheek plate 12, and a right cheek plate 13; a connecting section 111 is provided on the inner annular surface of the annular body 11. Two sets of left cheek connecting plates 112 and right cheek connecting plates 113 are provided on the inner annular surface of the annular body 11. The two sets of left cheek connecting plates 112 and right cheek connecting plates 113 are symmetrically distributed on both sides of the connecting section 111. A downwardly extending cheek fixing plate 122 is provided on the bottom surface of both the left cheek plate 12 and the right cheek plate 13. The cheek fixing plate 122 corresponds one-to-one with the left cheek connecting plate 112 and the right cheek connecting plate 113, and is respectively attached and fixed to the left cheek connecting plate 112 and the right cheek connecting plate 113. In this embodiment, the left cheek connecting plate 112 and the right cheek connecting plate 113 are vertically arranged, and notches 114 are provided on the inner sides of the left cheek connecting plate 112 and the right cheek connecting plate 113. The cheek fixing plate 122 abuts against the notch 114 and is fixedly connected to the left cheek connecting plate 112 and the right cheek connecting plate 113 by bolts. The notch 114 supports the cheek fixing plate 122 and also serves as a limit to ensure the accuracy of the installation position of the left cheek plate 12 and the right cheek plate 13.

[0070] In this embodiment, two first magnetic attraction positions 121 are respectively disposed at the top end of the left cheek plate 12 and the right cheek plate 13, and another first magnetic attraction position 121 is disposed on the rear side of the annular body 11 to avoid the left cheek plate 12 and the right cheek plate 13 blocking the upper magnetic attraction component and affecting the magnetic attraction limiting effect.

[0071] Please refer to Figures 6-8 As shown, specifically, the head mechanism 2 includes a head body 21, an antenna assembly 22, an eye assembly 23, a mandible assembly 24, and a front villi assembly 25. The front end of the head body 21 has antenna insertion holes 212 and eye insertion holes 213. The antenna assembly 22 and eye assembly 23 are respectively inserted into the antenna insertion holes 212 and eye insertion holes 213. Connecting to the antenna assembly 22 and eye assembly 23 via insertion holes reduces the overall assembly difficulty while ensuring stable connection. Similarly, an adhesive layer can be provided within the antenna insertion holes 212 and eye insertion holes 213 to further improve the robustness of the connection between the various components. The front end of the bottom of the head body 21 has a mandible connecting portion 214, and the mandible assembly 24 is fitted and fixed to both sides of the mandible connecting portion 214. In this embodiment, the connection surface between the mandible connecting portion 214 and the mandible assembly 24 is an inclined surface, with the two inclined surfaces arranged in an inverted "V" shape, facilitating the installation and removal of the mandible assembly 24. The bottom sides of the head body 21 are provided with pile mounting plates, and the front pile assembly 25 is attached and fixed to the pile mounting plates.

[0072] Please refer to Figures 9-18As shown, specifically, the foot mechanism 3 includes a clamp foot 31, a first foot 32, a second foot 33, a third foot 34, and a fourth foot 35. The clamp foot 31 includes a clamp base 311, a first clamp arm 312, a second clamp arm 313, a clamping part 314, and a clamping claw 315 connected in sequence. The clamp base 311 is fixedly connected to the foremost side connection position. In this embodiment, clamp foot connecting plates 316 are provided between the clamp base 311, the first clamp arm 312, the second clamp arm 313, the clamping part 314, and the clamping claw 315. Adjacent clamp foot connecting plates 316 are fitted together and fixedly connected by bolts. The first foot 32, the second foot 33, the third foot 34, and the fourth foot 35 each include a foot base 321, a first connecting part 322, a second connecting part 323, a third connecting part 324, and a last foot 325 connected in sequence. The foot bases 321 of the first foot 32, the second foot 33, the third foot 34, and the fourth foot 35 are respectively connected to the side connecting positions from the front end to the rear end. In this embodiment, a rear foot connecting plate 326 is provided between the foot base 321, the first connecting part 322, the second connecting part 323, the third connecting part 324, and the last foot 325. Adjacent rear foot connecting plates 326 fit together and are fixedly connected by bolts. In this embodiment, five spaced-apart foot connecting plates 115, i.e., side connecting positions, are provided on both sides of the outer ring surface of the annular body 11. The pincer base 311 of the claw 31 is fixedly connected to the foot connecting plates 115 located at the foremost end on both sides by bolts. The foot bases 321 of the first foot 32, the second foot 33, the third foot 34, and the fourth foot 35 are respectively fixed to the four foot connecting plates 115 from the second front end to the rear end on both sides. In this embodiment, the foot bases 321 of the first foot 32, the second foot 33, the third foot 34, and the fourth foot 35 correspond to the basal segment of the mitten crab, the first connecting part 322 corresponds to the coxa and isthmus of the mitten crab, the second connecting part 323 corresponds to the long segment of the mitten crab, the third connecting part 324 corresponds to the carpal and proximal segments of the mitten crab, and the last foot 325 corresponds to the dactylus of the mitten crab, so as to maximize the restoration of the structural features of the mitten crab and enhance the overall viewing effect.

[0073] Please refer to Figures 19-20As shown, specifically, the chest mechanism 4 includes a chest plate 41 and a jawbone assembly 42. A connecting post 411 is provided on the top surface of the chest plate 41. The connecting post 411 abuts against and is fixedly connected to the connecting section 111. In this embodiment, a chest connecting seat 1112 is provided on the connecting section 111. The chest connecting seat 1112 abuts against the connecting post 411 and is fixedly connected by bolts. Furthermore, the chest connecting seat 1112 is located at the front end of the second magnetic attraction position 1111 on the connecting section 111. At the same time, a clearance portion 412 is provided at the rear end of the chest plate 41. The clearance portion 412 is recessed inward from the rear end of the chest plate 41 to make way for the second magnetic attraction position 1111 and the lower magnetic attraction position 541, thereby limiting the position of the abdominal mechanism 5 by the connecting assembly 1. In this embodiment, the front end of the top face of the thorax plate 41 is provided with a second maxilliped connecting seat 413 and a third maxilliped connecting seat 414. The maxilliped assembly 42 includes a second maxilliped 421 and a third maxilliped 422. The ends of the second maxilliped 421 and the third maxilliped 422 are respectively rotatably connected to the second maxilliped connecting seat 413 and the third maxilliped connecting seat 414. The second maxilliped connecting seat 413, the third maxilliped connecting seat 414, and the ends of the second maxilliped 421 and the third maxilliped 422 are located between the thorax plate 41 and the connecting assembly 1. The thorax plate 41 and the connecting assembly 1 block the above-mentioned connecting structure to prevent the connecting structure from being exposed and affecting the overall display effect of the crab shape.

[0074] In this embodiment, the ends of the second jaw foot 421 and the third jaw foot 422 are provided with connecting ball portions 4211, and the second jaw foot connecting seat 413 and the third jaw foot connecting seat 414 are provided with spherical connecting grooves 4131, with the connecting ball portions 4211 embedded in the spherical connecting grooves 4131. Both the connecting ball portions 4211 and the spherical connecting grooves 4131 have jaw foot through holes 4132, and jaw foot connecting ropes 43 are threaded through the jaw foot through holes 4132, with the two ends of the jaw foot connecting ropes 43 connected to each other. The spherical connecting grooves 4131 and the jaw foot connecting ropes 43 together limit the connecting ball portions 4211, ensuring that the second jaw foot 421 and the third jaw foot 422 will not detach from the breast plate 41. The spherical connecting groove 4131 provides rotation space for the second jaw foot 421 and the third jaw foot 422, and utilizes the elasticity of the jaw foot connecting rope 43 to achieve a small range of rotation of the second jaw foot 421 and the third jaw foot 422, thereby improving the overall simulation level.

[0075] Please refer to Figures 21-23As shown, specifically, the abdominal mechanism 5 includes a first abdominal segment 51, a second abdominal segment 52, a third abdominal segment 53, a fourth abdominal segment 54, a fifth abdominal segment 55, and a tail segment 56 arranged sequentially. Each of the first abdominal segment 51, second abdominal segment 52, third abdominal segment 53, fourth abdominal segment 54, fifth abdominal segment 55, and tail segment 56 has an abdominal segment perforation 511. An abdominal segment connecting rope 57 is threaded through the abdominal segment perforation 511 of the first abdominal segment 51, second abdominal segment 52, third abdominal segment 53, fourth abdominal segment 54, fifth abdominal segment 55, and tail segment 56, and the two ends of the abdominal segment connecting rope 57 are connected to each other. Utilizing the elasticity of the connecting rope 57, the flexibility among the first abdominal segment 51, second abdominal segment 52, third abdominal segment 53, fourth abdominal segment 54, fifth abdominal segment 55, and tail segment 56 is effectively improved, allowing relative movement between them and enhancing the overall simulation effect of the abdominal mechanism 5. The first abdominal segment 51 is equipped with an abdominal segment connecting plate 512, which is hinged to the rear hinge position 14. In this embodiment, the lower magnetic suction position 541 is located on the top surface of the fourth abdominal segment 54, and is situated in the middle of the abdominal mechanism 5, improving the limiting effect of the lower magnetic suction member on the abdominal mechanism 5. In this embodiment, the diameter of the lower magnetic suction member is larger than the diameter of the upper magnetic suction member, further enhancing the stability of the abdominal mechanism 5 in the connected state.

[0076] In this embodiment, the head mechanism 2, foot mechanism 3, thorax mechanism 4, and abdomen mechanism 5 are identical to the head, foot, thorax, and abdomen structures of the Chinese mitten crab. Similarly, the head mechanism 2, foot structure 3, thorax mechanism 4, and abdomen mechanism 5 can also be constructed using structures from other crab species and bolted together with the connecting assembly 1. Furthermore, based on this crab structure, other biological species can be developed, and AI can be used to generate biomimetic artificial species with different appearances and decorative styles, such as mechanical military-style and cyberpunk-style crabs.

[0077] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An Eriocheir sinensis model, characterized in that, The connecting assembly, the head mechanism, the foot mechanism, the chest mechanism and the abdomen mechanism are included; The side of the connecting assembly is provided with a side connecting position, and the end of the foot mechanism is connected to the side connecting position; The head mechanism cover is arranged on the top surface of the connecting assembly, and a first dismounting connecting piece is arranged between the head mechanism cover and the connecting assembly; The chest mechanism is fixed on the bottom surface of the connecting assembly; The rear end of the connecting assembly is provided with a rear hinging position, the rear end of the abdomen mechanism is hinged to the rear hinging position, and the abdomen mechanism is arranged on the bottom of the chest mechanism, and a second dismounting connecting piece is arranged between the abdomen mechanism and the connecting assembly.

2. The model of the Chinese mitten crab according to claim 1, characterized in that: The top edge of the connecting assembly is provided with a plurality of first magnetic attraction positions which are spaced from each other, the bottom surface of the head mechanism is provided with a plurality of upper magnetic attraction positions which correspond to the first magnetic attraction positions one by one, the first dismounting connecting piece includes a plurality of upper magnetic attraction pieces which are respectively fixed on the first magnetic attraction positions and the upper magnetic attraction positions, and the corresponding upper magnetic attraction pieces are attracted to each other.

3. The model of the Chinese mitten crab according to claim 1, characterized in that: The middle part of the connecting assembly is provided with a second magnetic attraction position, the abdomen mechanism is provided with a lower magnetic attraction position which corresponds to the second magnetic attraction position, the second dismounting connecting piece includes a plurality of lower magnetic attraction pieces which are respectively fixed on the second magnetic attraction position and the lower magnetic attraction position, and the lower magnetic attraction pieces are attracted to each other.

4. The model of the Chinese mitten crab according to claim 1, characterized in that: The connecting assembly includes a ring-shaped main body, a left gill plate and a right gill plate; The inner ring surface of the ring-shaped main body is provided with a connecting section, The inner ring surface of the ring-shaped main body is provided with two groups of left gill connecting plates and right gill connecting plates, the two groups of left gill connecting plates and right gill connecting plates are symmetrically distributed on the two sides of the connecting section, the bottom surface of the left gill plate and the right gill plate is provided with a downward extending gill fixing plate, the gill fixing plate corresponds to the left gill connecting plate and the right gill connecting plate one by one, and is fixedly connected with the left gill connecting plate and the right gill connecting plate.

5. The model of the Chinese mitten crab according to claim 1, wherein: The head mechanism includes a head body, an antenna assembly, an eye assembly, a mandible assembly and a front villus assembly, The front end of the head body is provided with an antenna insertion hole and an eye insertion hole, the antenna assembly and the eye assembly are respectively inserted into the antenna insertion hole and the eye insertion hole, the bottom surface of the head body is provided with a mandible connecting part at the front end, the mandible assembly is fixedly connected on the two sides of the mandible connecting part, and the bottom of the head body is provided with a villus mounting plate, and the front villus assembly is fixedly connected on the villus mounting plate.

6. The model of the blue crab of claim 1, wherein: The foot mechanism includes a pincer foot, a first foot, a second foot, a third foot and a fourth foot; The pincer foot includes a pincer seat, a first pincer arm, a second pincer arm, a pincer part and a pincer claw which are sequentially connected, and the pincer seat is fixedly connected to the frontmost side connecting position; The first foot, the second foot, the third foot and the fourth foot each include a foot seat, a first connecting part, a second connecting part, a third connecting part and a terminal foot which are sequentially connected, and the foot seats of the first foot, the second foot, the third foot and the fourth foot are sequentially connected to the side connecting positions from the second front end to the rear end.

7. The model blue crab of claim 4, wherein: The chest mechanism includes a chest plate and a gill foot assembly, the top surface of the chest plate is provided with a connecting column, the connecting column is in abutment with the connecting section and is fixedly connected. The top surface of the chest plate is provided with a second gnathopod connecting seat and a third gnathopod connecting seat at the front end, and the gnathopod assembly comprises a second gnathopod and a third gnathopod; the end of the second gnathopod and the third gnathopod is respectively rotatably connected to the second gnathopod connecting seat and the third gnathopod connecting seat.

8. The model blue crab of claim 7, wherein: The end of the second gnathopod and the third gnathopod is provided with a connecting ball part, the second gnathopod connecting seat and the third gnathopod connecting seat are provided with a spherical connecting groove, the connecting ball part is embedded on the spherical connecting groove, the connecting ball part and the spherical connecting groove are both provided with a gnathopod perforation, a gnathopod connecting rope is arranged in the gnathopod perforation, and the head and tail ends of the gnathopod connecting rope are connected to each other.

9. The model blue crab of claim 3, wherein: The abdominal mechanism comprises a first abdominal segment, a second abdominal segment, a third abdominal segment, a fourth abdominal segment, a fifth abdominal segment and a tail segment arranged in sequence; The first abdominal segment, the second abdominal segment, the third abdominal segment, the fourth abdominal segment, the fifth abdominal segment and the tail segment are all provided with an abdominal segment perforation, and an abdominal segment connecting rope is arranged in the abdominal segment perforation of the first abdominal segment, the second abdominal segment, the third abdominal segment, the fourth abdominal segment, the fifth abdominal segment and the tail segment; and the head and tail ends of the abdominal segment connecting rope are connected to each other. The first abdominal segment is provided with an abdominal segment connecting plate, and the abdominal segment connecting plate is hingedly connected to the rear hinge position.

10. The model of the Chinese mitten crab according to claim 9, characterized in that: The lower magnetic attraction position is arranged on the top surface of the fourth abdominal segment.

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