Crab-shaped gear building block toy

Abstract

The utility model discloses a crab-shaped gear building block toy. The crab-shaped gear building block toy comprises a main body shell, a walking mechanism, two crab leg assemblies, two crab claw assemblies, a gear set and a driving assembly. The crab claw assembly is provided with a toothed ring piece and two claw pieces, and the toothed ring piece is in transmission fit with the two claw pieces. The gear set is arranged on the main body shell and meshed with the gear ring pieces of the two crab claw assemblies respectively. The driving assembly is in transmission fit with one gear of the gear set so as to drive the two pincer pieces of the crab pincer assembly to alternately execute approaching and leaving actions. According to the crab-shaped gear building block toy provided by the embodiment of the invention, the two crab claw assemblies on the crab-shaped gear building block toy can show the effect that clamping and loosening are achieved through crab claws. According to the crab-shaped gear building block toy, actions of other motion forms except rotation are added, the display effect and achievable functions of the crab-shaped gear building block toy are increased, and the playability of the rotating gear ring building block is improved. Due to the arrangement of the crab leg assembly and the crab pincers, the crab-shaped gear building block toy has a very high bionic effect, and the entertainment mode of players is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear building block toys, and particularly relates to a crab-shaped gear building block toy. Background Art

[0002] Gear building block toys are toys that enable different gears to mesh with each other after splicing through the splicing of rotating seats of gears with rotating seats. They have the characteristics of diverse shapes of building block toys. At the same time, the rotational transmission between gears can be realized through the meshing connection between gears. With different gear shapes, the playability of the toys can be effectively improved.

[0003] However, the existing gear building blocks can only perform rotational movements and only have the circular structure of gears, and cannot be specifically assembled into the shape of an animal. Therefore, the displayed effects and realized functions are relatively single, without bionic effects, and the playability is limited to a certain extent.

[0004] In view of this, the present utility model is specifically proposed. Content of the Utility Model

[0005] The utility model provides a crab-shaped gear building block toy.

[0006] The present application provides the following technical solutions:

[0007] A crab-shaped gear building block toy, comprising:

[0008] A main body shell;

[0009] A traveling mechanism, which is arranged on the main body shell;

[0010] Two crab leg assemblies, which are respectively arranged on both sides of the main body shell and are detachably connected to the main body shell;

[0011] Two crab claw assemblies, which are respectively arranged on both sides of the main body shell. The crab claw assembly has a toothed ring member and two clamp members, and the toothed ring member and the two clamp members are in transmission cooperation;

[0012] A gear set, which is arranged on the main body shell and meshes with the toothed ring members of the two crab claw assemblies respectively;

[0013] A driving component, which is arranged on the main body shell and is in transmission cooperation with a gear of the gear set to drive the two clamp members of the crab claw assembly to alternately perform approaching and separating actions.

[0014] Optionally, the gear set includes a middle large gear and two side small gears;

[0015] The middle large gear and the two side small gears are both arranged in the main body housing, and the two small gears are respectively arranged on both sides of the large gear;

[0016] The drive assembly is in transmission cooperation with the large gear, and the two small gears are respectively meshed with the large gear;

[0017] The two small gears are respectively meshed with the toothed ring parts of the corresponding crab claw assemblies.

[0018] Optionally, the crab claw assembly includes a housing and two rotating parts, and the housing is detachably connected to the main body housing;

[0019] The two rotating parts are rotatably arranged in the housing. The rotating parts have eccentric shafts. Long strip grooves are arranged on both of the clamping parts. One end of the clamping part is rotatably connected to the housing, and the long strip grooves are sleeved on the eccentric shafts;

[0020] The toothed ring part is rotatably sleeved on the housing. The toothed ring part is in transmission cooperation with the rotating parts. Rotation of the toothed ring part can drive the two rotating parts to rotate, and the two rotating parts can drive the two clamping parts, so that one ends of the two clamping parts alternately perform actions of approaching each other or moving away from each other in opposite directions.

[0021] Optionally, the crab claw assembly includes two crab claw gears;

[0022] The two crab claw gears are rotatably arranged in the housing, and the two rotating parts are respectively connected to the corresponding crab claw gears;

[0023] The toothed ring part has an inner toothed ring and an outer toothed ring. The inner toothed ring is meshed with the two crab claw gears, and the outer toothed ring extends out of the housing and is meshed with the side small gear.

[0024] Optionally, the crab-shaped gear building block toy further includes two crab eye assemblies, and the two crab eye assemblies are respectively detachably connected to the main body housing;

[0025] The two crab eye assemblies are both located on one side of the middle large gear.

[0026] Optionally, the crab eye assembly has a crab eye housing and a crab eye gear, and the crab eye gear is rotatably arranged in the crab eye housing;

[0027] The crab eye housing is detachably connected to the main body housing, and the crab eye gear is meshed with the middle large gear.

[0028] Optionally, the crab-shaped gear building block toy further includes a crank;

[0029] The crank is connected to one of the side small gears;

[0030] Under the action of an external force, the crank can drive the pinion to rotate.

[0031] Optionally, the drive assembly includes a first motor and a gear train;

[0032] A mating gear ring is provided on the large middle gear;

[0033] Both the first motor and the gear train are provided inside the main body housing;

[0034] The first motor meshes with the input gear of the gear train, and the output gear of the gear train meshes with the mating gear ring of the large middle gear.

[0035] Optionally, the traveling mechanism includes wheels and a second motor;

[0036] The wheels are rotatably provided on the main body housing;

[0037] The second motor is provided inside the main body housing, and the second motor is in transmission connection with the wheels to drive the wheels to rotate.

[0038] Optionally, the crab-shaped gear building block toy further includes a first toggle switch, a second toggle switch, a first power supply control circuit, and a second power supply control circuit;

[0039] The first power supply control circuit is electrically connected to the first motor of the drive assembly;

[0040] The second power supply control circuit is electrically connected to the second motor of the traveling mechanism;

[0041] Both the first toggle switch and the second toggle switch are provided on the main body housing;

[0042] The first toggle switch is connected to the first power supply control circuit and is used to control the first motor of the traveling mechanism to rotate forward, reverse, or cut off the power;

[0043] The second toggle switch is connected to the second power supply control circuit and is used to control the second motor to rotate forward, reverse, or cut off the power.

[0044] By adopting the above technical solutions, the present application has the following beneficial effects:

[0045] The crab-shaped gear building block toy provided in the embodiment of the present application is provided with a crab claw assembly, which can be connected to the driving assembly through a gear set, and the driving assembly can drive the two gear sets to rotate, and the two gear sets can respectively drive the two claws on the two crab claw assemblies to alternately perform the approach and distance actions through the gear meshing mode, showing an effect of the crab claw clamping and relaxing and clamping and relaxing. The addition of other motion forms besides rotation increases the display effect and achievable functions of the crab-shaped gear building block toy, and improves the playability of the rotating gear ring building block.

[0046] In addition, crab leg components are provided on both sides of the main body shell, and combined with the crab claws, the crab-shaped gear building block toy has a high bionic effect, which further enhances the entertainment of the players and can also play a teaching effect of teaching children to recognize crabs. The crab leg component is also detachably connected to the main body shell, and can be assembled during play, which can also improve children's hands-on ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The accompanying drawings are part of this application and are used to provide a further understanding of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model, but do not constitute an improper limitation of the utility model. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0048] Figure 1 A schematic diagram of the main structure of a crab-shaped gear building block toy provided by an embodiment of the utility model;

[0049] Figure 2 A schematic diagram of the rear view structure of a crab-shaped gear building block toy provided by an embodiment of the utility model;

[0050] Figure 3 A schematic diagram of the structure of a crab-shaped gear building block toy provided by an embodiment of the utility model with part of the main body shell removed;

[0051] Figure 4 This is an enlarged structural schematic diagram of the crab claw assembly of the crab-shaped gear building block toy provided by an embodiment of the utility model;

[0052] Figure 5 A schematic structural diagram of a crab claw assembly of a crab-shaped gear building block toy provided by an embodiment of the utility model;

[0053] Figure 6 A schematic diagram of the structure of the crab claw assembly of the crab-shaped gear building block toy provided by the embodiment of the utility model after the gear ring part is removed;

[0054] Figure 7Schematic diagram of the crab claw assembly of the crab-shaped gear building block toy provided by the embodiment of the present utility model after removing the tooth ring part and the clamp part;

[0055] Figure 8 Schematic diagram of the tooth ring part of the crab-shaped gear building block toy provided by the embodiment of the present utility model.

[0056] In the figure: main body shell 1, traveling mechanism 2, wheels 21, second motor 22, crab leg assembly 3, crab claw assembly 4, tooth ring part 41, internal tooth ring 411, external tooth ring 412, ring plate 413, clamp part 42, long slot 421, housing 43, bottom shell 431, bottom wall 4311, inner barrel wall 4312, outer barrel wall 4313, insertion block 43131, slot 43132, bump part 4314, upper cover 432, top plate 4321, peripheral shell 4322, avoidance notch 43221, groove 4323, rotating part 44, eccentric shaft 441, crab claw gear 45, gear set 5, middle large gear 51, mating tooth ring 511, side small gear 52, crab eye assembly 6, crab eye shell 61, crab eye gear 62, crank 7, drive assembly 8, first motor 81, gear train 82, first toggle switch 91, second toggle switch 92. Detailed implementation manners

[0057] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model but are not intended to limit the scope of the present utility model.

[0058] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0059] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0060] See Figures 1 to 8As shown, an embodiment of the present application provides a crab-shaped gear building block toy, comprising a main body shell 1, a walking mechanism 2, two crab leg assemblies 3, two crab claw assemblies 4, a gear set 5 and a driving assembly 8. The walking mechanism 2 is arranged on the main body shell 1, and the two crab leg assemblies 3 are arranged on both sides of the main body shell 1 and are detachably connected to the main body shell 1. The two crab claw assemblies 4 are arranged on both sides of the main body shell 1, and the crab claw assembly 4 has a gear ring 41 and two clamps 42, and the gear ring 41 and the two clamps 42 are in transmission cooperation. The gear set 5 is arranged on the main body shell 1, and the gear set 5 is respectively meshed with the gear ring 41 of the two crab claw assemblies 4. The driving assembly 8 is arranged on the main body shell 1, and the driving assembly 8 is in transmission cooperation with a gear of the gear set 5 to drive the two clamps 42 of the crab claw assembly 4 to alternately perform approaching and moving away actions.

[0061] The crab-shaped gear building block toy provided in the embodiment of the present application is provided with a crab claw assembly 4, which can be connected to a driving assembly 8 through a gear set 5, and the driving assembly 8 can drive the two gear sets 5 to rotate, and the two gear sets 5 can respectively drive the two claws 42 on the two crab claw assemblies 4 to alternately perform the approach and distance actions through the gear meshing mode, showing an effect of the crab claws clamping and relaxing and clamping and relaxing. The addition of other motion forms besides rotation increases the display effect and achievable functions of the crab-shaped gear building block toy, and improves the playability of the rotating gear ring building block.

[0062] In addition, crab leg components 3 are respectively arranged on both sides of the main body shell 1. Combined with the arrangement of crab claws, the crab-shaped gear building block toy has a high bionic effect, which further enhances the entertainment of the players and can also play a teaching effect of teaching children to recognize crabs. The crab leg component 3 is also detachably connected to the main body shell 1, and can be assembled during play, which can also improve the hands-on ability of children.

[0063] In some possible implementations, see Figures 1 to 4 As shown, the gear set 5 includes a large central gear 51 and two small side gears 52. The large central gear 51 and the two small side gears 52 are both arranged on the main body shell 1, and the two small gears are arranged on both sides of the large gear. The driving assembly 8 is matched with the large gear, and the two small gears are respectively meshed with the large gear, and the two small gears are respectively meshed with the gear ring 41 of the corresponding crab claw assembly 4. The gear set 5 is divided into a large central gear 51 and two small side gears 52, and the driving mechanism only needs to drive one large gear to rotate. Moreover, in this arrangement, the large central gear 51 resembles the body of a crab, and the two small side gears 52 resemble the arms connected to the crab claws, which not only achieves the coordination of modeling simulation, but also realizes power transmission.

[0064] In some possible implementations, seeFigures 5 to 7 As shown, the crab claw assembly 4 includes a housing 43 and two rotating members 44. The housing 43 is detachably connected to the main body shell 1, and can be assembled during play, which can also improve the child's hands-on ability. The two rotating members 44 can be rotatably arranged on the housing 43, and the rotating member 44 has an eccentric shaft 441. The two pliers 42 are provided with a long groove 421. One end of the pliers 42 is rotatably connected to the housing 43, and the long groove 421 is sleeved on the eccentric shaft 441. The gear ring member 41 is rotatably sleeved on the housing 43. The gear ring member 41 and the rotating member 44 are in transmission cooperation. The rotation of the gear ring member 41 can drive the two rotating members 44 to rotate, and the two rotating members 44 can drive the two pliers 42, so that one end of the two pliers 42 alternately performs the action of approaching each other or moving away from each other in the opposite direction. The long groove 421 of the pliers 42 is sleeved on the eccentric shaft 441. The rotation of the gear ring 41 drives the two rotating parts 44 to rotate. The eccentric shaft 441 follows the rotating part 44 to make a circular motion. The eccentric shaft 441 moves the groove wall of the long groove 421, so that the two pliers 42 make a swinging motion around the connection point between them and the shell 43, forming a crab claw, showing the effect of clamping and relaxing.

[0065] In some possible implementations, see Figures 5 to 8 As shown, the crab claw assembly 4 includes two crab claw gears 45, both of which are rotatably disposed on the housing 43, and the two rotating members 44 are respectively connected to the corresponding crab claw gears 45. The gear ring member 41 has an inner gear ring 411 and an outer gear ring 412, the inner gear ring 411 is meshed with the two crab claw gears 45, and the outer gear ring 412 extends out of the housing 43 and is meshed with the side pinion 52. The outer gear ring 412 of the gear ring member 41 is meshed with the side pinion 52 and can be driven to rotate, and the inner gear ring 411 of the gear ring member 41 is meshed with the two gears, so that the rotation of the gear ring can drive the rotating member 44 to rotate.

[0066] In some possible implementations, see Figures 5 to 7 As shown, the housing 43 includes a bottom shell 431 and an upper cover 432. The bottom shell 431 has the insert block 43131 and the slot 43132. The upper cover 432 is connected to the bottom shell 431. A cavity is formed between the upper cover 432 and the bottom shell 431. The crab claw gear 45 is located in the cavity. The gear ring 41 is sleeved on the outer side of the upper cover 432 and / or the bottom shell 431. The cavity provides a space for accommodating the crab claw gear 45 and can cover the crab claw gear 45 to make the appearance more beautiful. The gear ring 41 is sleeved on the outer side of the upper cover 432 and / or the bottom shell 431. The upper cover 432 and the bottom shell 431 will not affect the gear ring transmission.

[0067] In some possible embodiments, the upper cover 432 has a top plate 4321 and a peripheral side shell 4322 located around the edge of the top plate 4321. An avoidance notch 43221 is provided on the peripheral side shell 4322, and a part of the crab claw gear 45 extends out of the avoidance notch 43221 and meshes with the inner tooth ring 411 of the tooth ring part 41. Only the position where the crab claw gear 45 meshes with the inner tooth ring 411 is exposed outside the cavity, which can shield the crab claw gear 45 to the greatest extent, maintain aesthetics to the greatest extent, and prevent sundries from entering the cavity and affecting the transmission between the crab claw gear 45 and the tooth ring part 41.

[0068] In some possible embodiments, the bottom shell 431 has a bottom wall 4311, an inner cylindrical wall 4312, and an outer cylindrical wall 4313. The inner cylindrical wall 4312 is connected to the bottom wall 4311, the outer cylindrical wall 4313 is connected to the bottom wall 4311, and the outer cylindrical wall 4313 is located outside the inner cylindrical wall 4312. The upper cover 432 covers the inner cylindrical wall 4312, and a limiting groove is formed between the peripheral side shell 4322, the inner cylindrical wall 4312, and the outer cylindrical wall 4313. The tooth ring part 41 is sleeved on the inner cylindrical wall 4312 and is limited in the limiting groove. The tooth ring part 41 can rotate around the inner cylindrical wall 4312, and the limiting groove limits the tooth ring part 41 in the axial direction of the tooth ring part 41, ensuring more stable rotation of the tooth ring part 41.

[0069] In some possible embodiments, referring to Figure 8 as shown, the tooth ring part 41 has a tooth ring body and a ring plate 413. The tooth ring body has the inner tooth ring 411 and an outer tooth ring 412, the ring plate 413 is arranged on one side of the tooth ring body in the thickness direction, and the ring plate 413 extends into the limiting groove. The cooperation between the ring plate 413 and the limiting groove ensures the limiting effect, and this does not affect the rotation of the tooth ring part 41, nor does the meshing between the inner tooth ring 411 and the crab claw gear 45.

[0070] In some possible embodiments, referring to Figures 6 to 7 as shown, the thickness of the ring plate 413 is less than the width of the limiting groove. Wherein, the width of the limiting groove is the distance between the outer cylindrical wall 4313 and the peripheral side shell 4322 in the direction perpendicular to the bottom wall 4311. In this way, the tooth ring part 41 will not be clamped, ensuring smooth rotation of the tooth ring part 41.

[0071] In some possible embodiments, a convex point part 4314 is provided on the upper edge of the outer cylindrical wall 4313. The convex point part 4314 has a smooth outer convex surface, and one side of the tooth ring part 41 in the thickness direction is supported on the convex point part 4314. The provision of the convex point can reduce the contact area between the tooth ring part 41 and the outer cylindrical wall 4313, reduce the friction when the tooth ring part 41 rotates, and make the rotation of the tooth ring part 41 smoother and with less noise.

[0072] In some possible embodiments, referring to Figure 7 as shown, two grooves 4323 are provided on the upper cover 432, and the two rotating members 44 are respectively rotatably provided in the grooves 4323. The grooves 4323 limit the pre-rotating member, ensuring convenient and stable installation of the rotating member 44.

[0073] In some possible embodiments, referring to Figures 1 to 3 as shown, the crab-shaped gear building toy further includes two crab eye assemblies 6. The two crab eye assemblies 6 are respectively detachably connected to the main body shell 1, and both the two crab eye assemblies 6 are located on one side of the middle large gear 51. The crab eye assemblies 6 are located at the positions of the crab's eyes, making the crab look more realistic and having a better simulation effect.

[0074] In some possible embodiments, referring to Figure 3 as shown, the crab eye assembly 6 has a crab eye shell 61 and a crab eye gear 62. The crab eye gear 62 is rotatably provided in the crab eye shell 61. The crab eye shell 61 is detachably connected to the main body shell 1, and the crab eye gear 62 meshes with the middle large gear 51. The crab eye assembly 6 has the crab eye gear 62 meshing with the middle large gear 51, so that the crab eyes can also rotate, making it more interesting. The crab eye shell 61 is detachably connected to the main body shell 1, and can be selectively inserted or the insertion position can be changed, exercising the child's hands-on ability and creative ability.

[0075] In some possible embodiments, referring to Figure 1 as shown, the crab-shaped gear building toy further includes a crank 7. The crank 7 is connected to one of the side small gears 52. Under the action of an external force, the crank 7 can drive the small gear to rotate. The setting of the crank 7 can rotate the crab claw assembly 4, the gear set 5 and the crab eye assembly 6 by hand. In this way, it can be rotated electrically or manually, making the gameplay more diverse and the interest also enhanced.

[0076] In some possible embodiments, referring to Figures 1 to 6 as shown, the drive assembly 8 includes a first motor 81 and a gear train 82. A mating tooth ring 511 is provided on the middle large gear 51. The first motor 81 and the gear train 82 are both provided inside the main body shell 1. The first motor 81 meshes with the input gear of the gear train 82, and the output gear of the gear train 82 meshes with the mating tooth ring 511 of the middle large gear 51. The first motor 81 drives the middle large gear 51 to rotate through the gear train 82. The gear train 82 can reduce the rotation speed of the first motor 81 to a suitable speed and then transmit it to the middle large gear 51.

[0077] In some possible embodiments, referring to Figure 3As shown, the traveling mechanism 2 includes wheels 21 and a second motor 22. The wheels 21 are rotatably disposed on the main body case 1. The second motor 22 is disposed within the main body case 1, and the second motor 22 is in transmission connection with the wheels 21 to drive the wheels 21 to rotate. The second motor 22 drives the wheels 21 to rotate, and the wheels 21 enable the entire crab-shaped gear building toy to move, allowing the toy not only to be placed in one place for display and play, but also to move. This greatly enhances the playability of the crab-shaped gear building toy and further strengthens the bionic effect of the toy.

[0078] In some possible implementation scenarios, refer to Figure 1 As shown, the crab-shaped gear building toy further includes a first toggle switch 91, a second toggle switch 92, a first power supply control circuit, and a second power supply control circuit. The first power supply control circuit is electrically connected to the first motor 81 of the driving assembly 8, and the second power supply control circuit is electrically connected to the second motor 22 of the traveling mechanism 2. Both the first toggle switch 91 and the second toggle switch 92 are disposed on the main body case 1. The first toggle switch 91 is connected to the first power supply control circuit and is used to control the forward, reverse rotation, or power-off of the first motor 81 of the traveling mechanism 2; the second toggle switch 92 is connected to the second power supply control circuit and is used to control the forward, reverse rotation, or power-off of the second motor 22. The two control circuits and the two toggle switches can, in addition to controlling on and off, respectively control rotation in two directions and movement in two directions, enabling more movement combinations and further enhancing the playability.

[0079] The preferred embodiments of the present application disclosed above are only used to assist in explaining the present application. The preferred embodiments do not describe all the details in detail, nor do they limit the application to the specific implementation manners described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present application, so that those skilled in the relevant technical field can understand and utilize the present application well. The present application is only limited by the claims and their full scope and equivalents.

Claims

1. A crab-shaped gear building block toy, characterized in that, Comprising: Main body shell; Traveling mechanism, which is arranged on the main body shell; Two crab leg assemblies, which are respectively arranged on both sides of the main body shell and are detachably connected to the main body shell; Two crab claw assemblies, which are respectively arranged on both sides of the main body shell. The crab claw assembly has a toothed ring member and two claw members, and the toothed ring member and the two claw members are in transmission cooperation; Gear set, which is arranged on the main body shell, and the gear set meshes with the toothed ring members of the two crab claw assemblies respectively; Drive assembly, which is arranged on the main body shell. The drive assembly is in transmission cooperation with a gear of the gear set to drive the two claw members of the crab claw assembly to alternately perform approaching and separating actions.

2. The crab-shaped gear building block toy according to claim 1, wherein The gear set includes a middle large gear and two side small gears; The middle large gear and the two side small gears are both arranged on the main body shell, and the two small gears are respectively arranged on both sides of the large gear; The drive assembly is in transmission cooperation with the large gear, and the two small gears respectively mesh with the large gear; The two small gears respectively mesh with the toothed ring members of the corresponding crab claw assemblies.

3. The crab-shaped gear building block toy according to claim 2, wherein The crab claw assembly includes a shell and two rotating members, and the shell is detachably connected to the main body shell; The two rotating members are rotatably arranged on the shell. The rotating member has an eccentric shaft, and a long slot is arranged on each of the two claw members. One end of the claw member is rotatably connected to the shell, and the long slot is sleeved on the eccentric shaft; The toothed ring member is rotatably sleeved on the shell, and the toothed ring member is in transmission cooperation with the rotating member. The rotation of the toothed ring member can drive the two rotating members to rotate, and the two rotating members can drive the two claw members, so that one end of the two claw members alternately performs the actions of approaching each other or separating in the opposite direction.

4. The crab-shaped gear building block toy according to claim 3, wherein, The crab claw assembly includes two crab claw gears; The two crab claw gears are rotatably arranged on the shell, and the two rotating members are respectively connected to the corresponding crab claw gears; The toothed ring member has an inner toothed ring and an outer toothed ring. The inner toothed ring meshes with the two crab claw gears, and the outer toothed ring extends out of the shell and meshes with the side small gear.

5. The crab-shaped gear building block toy according to claim 2, wherein, Including two crab eye assemblies, and the two crab eye assemblies are respectively detachably connected to the main body shell; The two crab eye assemblies are both located on one side of the middle large gear.

6. The crab-shaped gear building block toy according to claim 5, characterized in that, The crab eye assembly has a crab eye shell and a crab eye gear, and the crab eye gear is rotatably arranged on the crab eye shell; The crab eye shell is detachably connected to the main body shell, and the crab eye gear meshes with the middle large gear.

7. The crab-shaped gear building block toy according to claim 2, wherein, Including a crank; The crank is connected to one of the side small gears; Under the action of an external force, the crank can drive the small gear to rotate.

8. The crab-shaped gear building block toy according to claim 2, wherein, The drive assembly includes a first motor and a gear train; A mating toothed ring is arranged on the middle large gear; The first motor and the gear train are both arranged inside the main body shell; The first motor meshes with the input gear of the gear train, and the output gear of the gear train meshes with the mating toothed ring of the middle large gear.

9. The crab-shaped gear building block toy according to claim 8, characterized in that, The traveling mechanism includes wheels and a second motor; The wheels are rotatably arranged on the main body shell; The second motor is disposed within the main body housing, and the second motor is in transmission connection with the wheel to drive the wheel to rotate.

10. The crab-shaped gear building block toy according to claim 9, wherein, It includes a first toggle switch, a second toggle switch, a first power supply control circuit, and a second power supply control circuit; The first power supply control circuit is electrically connected to the first motor of the driving assembly; The second power supply control circuit is electrically connected to the second motor of the traveling mechanism; Both the first toggle switch and the second toggle switch are disposed on the main body housing; The first toggle switch is connected to the first power supply control circuit and is used to control the forward rotation, reverse rotation, or power-off of the first motor of the traveling mechanism; The second toggle switch is connected to the second power supply control circuit and is used to control the forward rotation, reverse rotation, or power-off of the second motor.

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