A doll based on snap-on disassembly learning

Abstract

The utility model relates to the technical field of dolls, especially a doll based on buckling dismounting learning, which comprises a trunk main body, bionic arms with bionic structures movably installed at the left and right ends of the trunk main body, a first buckling mechanism arranged between the trunk main body and the bionic arms, and supporting legs installed at the lower end of the trunk main body and provided with a second buckling mechanism between the trunk main body and the supporting legs. The utility model utilizes the lever principle of the limiting rod, spring elasticity and sliding block to ensure that the supporting legs are self-locked when vertically stressed, and the multi-directional movement is realized through the cooperation of the universal joint, conical column and connecting rod, and the rigid constraint is provided by the buckling mechanism, which helps to solve the contradiction between the flexibility and looseness and the stability and stiffness of the doll, and the built-in parts and soft package design help to improve the safety of children during use, and the modular design helps to stimulate the creativity of children, and the physical laws can be directly perceived by children in the process of dismounting through the mechanical principles such as spring deformation and lever transmission.

Description

Technical Field

[0001] This utility model relates to the field of doll technology, and in particular to a doll based on learning through snap-on assembly and disassembly. Background Technology

[0002] With the development of children's intellectual education, detachable dolls have become an important tool for cultivating children's hand-eye coordination and mechanical cognition.

[0003] Existing methods often employ a preschool doll based on snap-fit ​​assembly and disassembly, as disclosed in CN216259072U. This method provides a preschool doll based on strap snaps, using horizontal and vertical snaps of different colors to train children's basic assembly and disassembly skills. However, this approach still has the following limitations: its snaps rely solely on simple plug-in structures, such as the snapping of straps and snaps, resulting in a single assembly and disassembly action. It cannot simulate the self-locking principle of real mechanical structures, making it difficult to deepen children's understanding of mechanical principles such as levers and spring reset. Furthermore, the doll's limbs, such as arms and legs, are usually fixed and sewn together or simply hinged, lacking multi-degree-of-freedom movement. If flexibility is pursued by adding joints, it can easily lead to a loose structure. If stability is emphasized, the limbs become stiff, limiting the diversity of movements. Finally, traditional snaps rely on frequent insertion and removal, which can easily fail due to children's misoperation or component wear. The exposed strap structure also poses a risk of entanglement, requiring frequent maintenance with long-term use, and may even reduce children's learning interest. Utility Model Content

[0004] The purpose of this invention is to solve the problem of the lack of principle and structural contradiction in the operation of snap-on assembly and disassembly learning dolls in the prior art, and to propose a doll based on snap-on assembly and disassembly learning.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A doll based on snap-fit ​​assembly and disassembly learning includes a torso body, with bionic arms having a bionic structure movably mounted at both ends of the torso body, a first snap-fit ​​mechanism between the torso body and the bionic arms, a support leg mounted at the lower end of the torso body, and a second snap-fit ​​mechanism between the torso body and the support leg.

[0006] Preferably, the first buckling mechanism is fixedly disposed at both ends of the torso body, and the first buckling mechanism is disposed in one-to-one correspondence with the two bionic arms; the second buckling mechanism is disposed at the lower end of the torso body, and the second buckling mechanism is disposed in one-to-one correspondence with the supporting legs.

[0007] Preferably, the first latching mechanism includes an arc-shaped locking hole on the side wall of the torso body, a cylinder is slidably fitted into the arc-shaped locking hole, a limiting plate is fixedly installed on the bottom side wall of the cylinder, a spherical groove is opened at the top of the cylinder, and circular grooves are opened on both sides of the inner wall of the arc-shaped locking hole. A wedge-shaped locking rod is slidably fitted into the circular groove, and a return spring is fixedly installed between the bottom end of the wedge-shaped locking rod and the circular groove. The return spring and the wedge-shaped locking rod cooperate to fix the limiting plate in the arc-shaped locking hole. A pull rod penetrating the torso body is fixedly installed on the upper part of the wedge-shaped locking rod near the outer wall, and a horizontal plate for facilitating the retraction of the wedge-shaped locking rod is fixedly installed on the upper end of the pull rod.

[0008] Preferably, the bionic arm includes a universal joint movably mounted in a spherical groove. A first conical column is fixedly mounted on the upper end of the universal joint. A first base is fixedly mounted on the upper end of the first conical column. A connecting rod is mounted on the upper end of the first base. A second conical column is mounted on the upper part of the first conical column. The second conical column is connected to the first conical column by a connecting rod, and the bottom end of the connecting rod is welded to the bottom end of the second conical column.

[0009] Preferably, the second buckling mechanism includes a rectangular groove formed at the bottom end of the torso body, a sliding groove formed at the bottom end of the rectangular groove, a first strong spring fixedly installed at the bottom end of the rectangular groove, a circular protrusion fixedly fitted at the top end of the first strong spring, a concave block movably placed at the top end of the circular protrusion, a rotating shaft fixedly installed in the middle of the rectangular groove, a limiting rod for fixing the concave block in the rectangular groove mounted on the rotating shaft pin, a second strong spring fixedly installed at the bottom end of the limiting rod, a limiting slider slidably fitted in the sliding groove, a telescopic guide rod for limiting the vertical movement of the second strong spring by cooperating with the sliding groove nested in the middle of the limiting slider, a second base installed between the top end of the rectangular groove and the bottom end of the side wall of the torso body, an opening and closing rod for pulling the limiting rod mounted on the second base pin, and one end of the opening and closing rod fixed to the bottom end of the limiting rod.

[0010] Preferably, a traction link is fixedly installed at the top of the support leg, and a square plate is symmetrically placed at the top of the concave block, with the traction link connected to the middle of the square plate by a pin.

[0011] Compared with the prior art, the present invention has the following advantages: 1. This utility model utilizes the lever principle of limit rod, spring force and slider trigger to ensure that the support leg is self-locking when subjected to vertical force and released when pressed horizontally, preventing children from accidentally disassembling it. At the same time, the system composed of wedge-shaped locking rod, spring reset and pull rod control helps to reduce the problem of easy wear of plug-in structure, realizes one-handed disassembly and assembly, helps to reduce subsequent maintenance costs and improve replacement efficiency, and the simple disassembly method is beneficial to younger children.

[0012] 2. This utility model achieves multi-directional movement of human-like joints through the cooperation of universal joints, conical columns and connecting rods. At the same time, the buckle mechanism provides rigid constraints, which helps to solve the contradiction that the doll is flexible but loose, stable but stiff. The built-in parts and soft-pack design help to improve the safety of children when using it. The modular design helps to stimulate children's creativity. Furthermore, the mechanical principles such as spring deformation and lever transmission are exposed and visible, allowing children to directly perceive the physical laws during disassembly and assembly. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a doll based on snap-on assembly and disassembly learning proposed in this utility model; Figure 2 A schematic diagram of a bionic arm for a doll based on buckle assembly and disassembly learning proposed in this utility model; Figure 3 This is a cross-sectional view of the first buckle mechanism of a doll based on buckle assembly and disassembly learning proposed in this utility model; Figure 4 This is a cross-sectional view of the second buckle mechanism of a doll based on buckle assembly and disassembly learning proposed in this utility model.

[0014] In the diagram: 1. Main body; 2. Bionic arm; 21. Universal joint; 22. First conical column; 23. First base; 24. Connecting rod; 25. Second conical column; 3. First latching mechanism; 31. Cylinder; 32. Spherical groove; 33. Horizontal plate; 34. Pull rod; 35. Arc-shaped locking hole; 36. Circular groove; 37. Return spring; 38. Wedge-shaped locking rod; 39. Limiting plate; 4. Support leg; 5. Second latching mechanism; 51. Rectangular groove; 52. Slide groove; 53. Limiting slider; 54. Telescopic guide rod; 55. Second strong spring; 56. Limiting rod; 57. Rotating shaft; 58. First strong spring; 59. Concave block; 510. Circular protrusion; 511. Traction link; 512. Second base; 513. Opening and closing rod. Detailed Implementation

[0015] 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.

[0016] Reference Figures 1-4A doll based on snap-fit ​​assembly and disassembly learning includes a torso body 1, with bionic arms 2 having a bionic structure movably mounted at both ends of the torso body 1. The bionic arms 2 include universal joints 21 movably mounted in spherical grooves 32. A first conical column 22 is fixedly mounted on the upper end of the universal joint 21. A first base 23 is fixedly mounted on the upper end of the first conical column 22. A connecting rod 24 is mounted on the upper end of the first base 23. A second conical column 25 is mounted on the upper end of the first conical column 22. The second conical column 25 is connected to the first conical column 22 through the connecting rod 24, and the bottom end of the connecting rod 24 is welded to the bottom end of the second conical column 25. It should be noted that the universal joint 21 and the spherical groove 32 form a spherical joint connection. The spherical joint allows the universal joint 21 to achieve 360° multi-directional rotation within the spherical groove 32, such as pitch, lateral swing, and rotation, through the clearance fit between the ball head and the socket, providing a multi-degree-of-freedom movement basis for the bionic arm 2, similar to a shoulder joint. The universal joint 21 and the first tapered column 22 are rigidly fixedly connected, which can be done by integral injection molding or welding to ensure effective force transmission; The first base 23 and the first conical column 22 are fixedly connected by bonding or integral molding. The first base 23 and the connecting rod 24, and the first conical column 22 and the second conical column 25 are all connected by pins. The clearance fit between the pin and the hole allows the connecting rod 24 and the second conical column 25 to rotate around the pin. With the welding and fixing of the connecting rod 24 and the second conical column 25, a flexion and extension structure similar to an elbow joint is formed. Through the rotational freedom of the pin and the rigidity constraint of the welding, the controllable flexion and extension of the "forearm" of the bionic arm 2 relative to the "upper arm" is realized, avoiding loosening caused by excessive activity.

[0017] A first latching mechanism 3 is provided between the torso body 1 and the bionic arm 2. The first latching mechanism 3 includes an arc-shaped locking hole 35 opened on the side wall of the torso body 1. A cylinder 31 is slidably fitted into the arc-shaped locking hole 35. A limiting plate 39 is fixedly installed on the bottom side wall of the cylinder 31. The cylinder 31 and the arc-shaped locking hole 35 are rotatably and slidably connected. The cylinder 31 can rotate and slide axially along the arc-shaped trajectory of the arc-shaped locking hole 35. The limiting plate 39 on its side wall forms an axial limit with the inner wall of the arc-shaped locking hole 35. A spherical groove 32 is provided at the top of the cylinder 31, and circular grooves 36 are provided on both sides of the inner wall of the arc-shaped lock hole 35. A wedge-shaped locking rod 38 is slidably fitted into the circular groove 36. A return spring 37 is fixedly installed between the bottom end of the wedge-shaped locking rod 38 and the circular groove 36. The wedge-shaped locking rod 38 and the circular groove 36 are slidably connected, and the wedge-shaped locking rod 38 can extend and retract along the axial direction of the circular groove 36. The two ends of the return spring 37 are fixedly connected to the bottom end of the wedge-shaped locking rod 38 and the inner wall of the circular groove 36, respectively, forming an elastic return structure. When the limiting plate 39 presses the inclined surface of the wedge-shaped locking rod 38, the return spring 37 is compressed to realize the retraction of the wedge-shaped locking rod 38. After the limiting plate 39 is in place, the return spring 37 rebounds and pushes the wedge-shaped locking rod 38 to reset. The wedge-shaped locking rod 38 and the limiting plate 39 make the buckle self-locking. The return spring 37 and the wedge-shaped locking rod 38 cooperate to fix the limiting plate 39 in the arc-shaped locking hole 35. The upper part of the wedge-shaped locking rod 38 near the outer wall is fixedly installed with a pull rod 34 that penetrates the torso body 1. The upper end of the pull rod 34 is fixedly installed with a horizontal plate 33 for facilitating the retraction of the wedge-shaped locking rod 38. The pull rod 34 and the wedge-shaped locking rod 38 are integrally formed. The horizontal plate 33 and the top of the pull rod 34 are fixedly connected to form a force transmission chain for manual unlocking. The horizontal pulling force forces the wedge-shaped locking rod 38 to disengage from the limiting plate 39 and release the buckle constraint.

[0018] A support leg 4 is installed at the lower end of the torso body 1, and a second latching mechanism 5 is provided between the torso body 1 and the support leg 4. The second latching mechanism 5 includes a rectangular groove 51 opened at the bottom end of the torso body 1, a sliding groove 52 opened at the bottom end of the rectangular groove 51, a first strong spring 58 fixedly installed at the bottom end of the rectangular groove 51, a circular protrusion 510 fixedly fitted at the top end of the first strong spring 58, a concave block 59 movably placed at the top end of the circular protrusion 510, a rotating shaft 57 fixedly installed in the middle of the rectangular groove 51, a limiting rod 56 for fixing the concave block 59 in the rectangular groove 51 is pin-mounted on the rotating shaft 57, the rotating shaft 57 and the rectangular groove 51 are embedded, the limiting rod 56 and the rotating shaft 57 are pin-connected, the limiting rod 56 can rotate around the rotating shaft 57, forming a lever fulcrum; It should be noted that the two ends of the first strong spring 58 are fixedly connected to the bottom end of the rectangular groove 51 and the circular protrusion 510 respectively, which can be nested or welded. The circular protrusion 510 and the concave block 59 are in movable contact. The top end of the circular protrusion 510 contacts the bottom end of the concave block 59 to form an elastic support structure. When the concave block 59 is compressed, the first strong spring 58 is compressed and stores elastic potential energy. After unlocking, the first strong spring 58 rebounds and pushes the concave block 59 out. The two ends of the second strong spring 55 are fixedly connected to the bottom end of the limiting rod 56 and the limiting slider 53, respectively. The limiting slider 53 is slidably connected to the slide groove 52 and can slide horizontally along the slide groove 52. The telescopic guide rod 54 is nested with the limiting slider 53 and can extend and retract axially along the limiting slider 53. The telescopic guide rod 54 and the second strong spring 55 are coaxially nested. When the limiting rod 56 rotates and presses down the second strong spring 55, the limiting slider 53 slides along the slide groove 52 to achieve horizontal position adaptation, while the telescopic guide rod 54 constrains the second strong spring 55 to only extend and retract axially to avoid lateral bending, ensuring that the force of the second strong spring 55 acts stably on the limiting rod 56, and achieving elastic reset after unlocking.

[0019] A second strong spring 55 is fixedly installed at the bottom of the limiting rod 56. A limiting slider 53 is slidably fitted in the slide groove 52. A telescopic guide rod 54 is nested in the middle of the limiting slider 53 to limit the vertical movement of the second strong spring 55 in conjunction with the slide groove 52. A second base 512 is installed between the top of the rectangular groove 51 and the bottom of the side wall of the torso body 1. A lifting and closing rod 513 for pulling the limiting rod 56 is installed on the second base 512 with a pin, and one end of the lifting and closing rod 513 is fixed to the bottom of the limiting rod 56. The opening and closing rod 513 is connected to the second base 512 by a pin. The opening and closing rod 513 can rotate around the second base 512. The other end of the opening and closing rod 513 is welded to the bottom end of the limiting rod 56, forming a linkage lever that pulls the limiting rod 56 with the opening and closing rod 513. When the opening and closing rod 513 is pressed down, the force is transmitted through the pin to drive the limiting rod 56 to rotate around the rotating shaft 57, realizing the state switching from engaging the concave block 59 to releasing the concave block 59.

[0020] The first buckling mechanism 3 is fixedly installed at both ends of the torso body 1, and the first buckling mechanism 3 is corresponding to the two bionic arms 2. The second buckling mechanism 5 is installed at the lower end of the torso body 1, and the second buckling mechanism 5 is corresponding to the supporting leg 4.

[0021] A traction link 511 is fixedly installed at the top of the support leg 4. A square plate is symmetrically placed at the top of the concave block 59, and the traction link 511 is connected to the middle of the square plate by a pin. The top of the traction link 511 is integrally formed with the support leg 4. The square plate at the top of the concave block 59 is connected to the traction link 511 by a pin. The traction link 511 can rotate around the pin of the square plate, allowing the support leg 4 to swing slightly relative to the concave block 59, which is suitable for bionic movements. The front end of the traction link 511 is provided with an elastic buckle for being embedded in the pin. It should be noted that the torso body 1, the bionic arm 2 and the support leg 4 are all covered with skin-friendly material.

[0022] It should be noted that the specific model and specifications to be adopted need to be determined based on the actual specifications of the device. The specific selection and calculation methods use existing technology in this field, so they will not be elaborated here.

[0023] The functional principle of this utility model can be explained through the following operation methods: When installing the bionic arm 2: First, align the universal joint 21 with the spherical groove 32 and insert it. At the same time, while rotating the cylinder 31 downwards, the inclined surface of the wedge-shaped locking rod 38 is squeezed into the circular groove 36 by the limiting plate 39. After the limiting plate 39 slides into the bottom of the arc-shaped locking hole 35, the return spring 37 pushes the wedge-shaped locking rod 38 to return to its original position. The cylinder 31 is locked by mechanical self-locking, accompanied by a "click" sound indicating that the locking is complete. When disassembling, pull the horizontal plate 33 horizontally with your fingers to drive the pull rod 34, forcing the wedge-shaped locking rod 38 to disengage from the limiting plate 39. At this time, pull the universal joint 21 out of the quasi-spherical groove 32, and the bionic arm 2 can be disassembled. When installing the support leg 4: insert the traction rod 511 into the pin between the square plates of the recess 59, press down the support leg 4 to compress the first strong spring 58 in the recess 59, and wait for the limit rod 56 to rotate at the pivot 57 to engage with the edge of the recess 59 to complete the locking. During disassembly: The user presses down the opening and closing rod 513 to rotate the limiting rod 56, and at the same time presses down the second strong spring 55. Simultaneously, the limiting slider 53 slides along the slide groove 52, driving the telescopic guide rod 54 to limit the movement direction of the second strong spring 55, so that the second strong spring 55 is pressed vertically down and moves vertically down along the telescopic guide rod 54. The linkage limiting rod 56 releases the concave block 59, and the first strong spring 58 then pops up the concave block 59 to realize the automatic pop-out of the leg.

[0024] 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 doll based on snap-fit ​​assembly / disassembly learning, comprising a torso (1), characterized in that, The torso body (1) has bionic arms (2) with bionic structures movably installed at both ends. A first buckling mechanism (3) is provided between the torso body (1) and the bionic arms (2). A support leg (4) is installed at the lower end of the torso body (1), and a second buckling mechanism (5) is provided between the torso body (1) and the support leg (4).

2. The doll based on snap-fit ​​assembly / disassembly learning according to claim 1, characterized in that, The first buckling mechanism (3) is fixedly installed at both ends of the torso body (1), and the first buckling mechanism (3) is corresponding to the two bionic arms (2). The second buckling mechanism (5) is installed at the lower end of the torso body (1), and the second buckling mechanism (5) is corresponding to the supporting leg (4).

3. A doll based on snap-fit ​​assembly / disassembly learning according to claim 2, characterized in that, The first latching mechanism (3) includes an arc-shaped locking hole (35) on the side wall of the torso body (1), a cylinder (31) is slidably fitted in the arc-shaped locking hole (35), a limit plate (39) is fixedly installed on the bottom side wall of the cylinder (31), a spherical groove (32) is provided at the top of the cylinder (31), and circular grooves (36) are provided on both sides of the inner wall of the arc-shaped locking hole (35), a wedge-shaped locking rod (38) is slidably fitted in the circular groove (36). A return spring (37) is fixedly installed between the bottom end of the wedge-shaped clamp (38) and the circular groove (36), and the return spring (37) cooperates with the wedge-shaped clamp (38) to fix the limiting plate (39) in the arc-shaped locking hole (35). A pull rod (34) that penetrates the torso body (1) is fixedly installed on the upper part of the wedge-shaped clamp (38) near the outer wall. A horizontal plate (33) for facilitating the retraction of the wedge-shaped clamp (38) is fixedly installed on the upper end of the pull rod (34).

4. A doll based on snap-fit ​​assembly / disassembly learning according to claim 3, characterized in that, The bionic arm (2) includes a universal joint (21) movably installed in a spherical groove (32). A first conical column (22) is fixedly installed on the upper end of the universal joint (21). A first base (23) is fixedly installed on the upper end of the first conical column (22). A connecting rod (24) is installed on the upper end of the first base (23). A second conical column (25) is installed on the upper end of the first conical column (22). The second conical column (25) is connected to the first conical column (22) through the connecting rod (24), and the bottom end of the connecting rod (24) is welded to the bottom end of the second conical column (25).

5. A doll based on snap-fit ​​assembly / disassembly learning according to claim 1, characterized in that, The second latching mechanism (5) includes a rectangular groove (51) formed at the bottom of the torso body (1). A sliding groove (52) is formed at the bottom of the rectangular groove (51). A first strong spring (58) is fixedly installed at the bottom of the rectangular groove (51). A circular protrusion (510) is fixedly fitted at the top of the first strong spring (58). A concave block (59) is movably placed at the top of the circular protrusion (510). A rotating shaft (57) is fixedly installed in the middle of the rectangular groove (51). A limiting rod (56) for fixing the concave block (59) in the rectangular groove (51) is installed on the rotating shaft (57) with a pin. The bottom end of the limiting rod (56) is fixedly installed with a second strong spring (55). The sliding groove (52) is fitted with a limiting slider (53). The middle part of the limiting slider (53) is nested with a telescopic guide rod (54) that cooperates with the sliding groove (52) to limit the vertical movement of the second strong spring (55). The top of the rectangular groove (51) is installed between the top end and the bottom end of the side wall of the torso body (1). The pin on the second base (512) is installed with an opening and closing rod (513) for pulling the limiting rod (56), and one end of the opening and closing rod (513) is fixed to the bottom end of the limiting rod (56).

6. A doll based on snap-fit ​​assembly / disassembly learning according to claim 5, characterized in that, The top of the support leg (4) is fixedly installed with a traction rod (511), and the top of the concave block (59) is provided with a symmetrically placed square plate, and the middle pin of the square plate is connected to the traction rod (511).

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