Model self-locking joint

Abstract

According to the model self-locking joint, a self-locking structure is arranged on a mutual connection structure of two movable pieces, a fixed locking piece and a movable locking piece are arranged in the opposite action directions of the two movable pieces, and the locking effect and the unlocking effect are switched through the action of the movable locking piece, so that the locking structure is simple and effective; and a connecting structure of the movable piece is designed separately and is not influenced by action abrasion of the two movable pieces, so that the locking effect is kept effective for a long time, and the durability is greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of movable model technology and relates to a self-locking joint for models. Background Technology

[0002] In existing movable models such as figurines and toys, especially human figures, ball joints and pivots are often used to simulate the movement of actual joints and make the models more realistic. This allows two connected parts to move relative to each other. However, these existing ball joints and pivots rely on external force to achieve the fit when the two parts are connected. Initially, due to the interference fit of the connection, the two parts have a certain locking force, which can be adjusted and locked in the desired position. However, after a certain period of use and wear, the locking force will fail, causing the relative position of the two parts to become unstable and the joint to loosen. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, the present invention provides a model self-locking joint.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A model self-locking joint includes a first movable member, a second movable member, and a self-locking structure. The first movable member and the second movable member are configured to be rotatably connected or slidably connected. The self-locking structure includes a fixed locking member and a movable locking member. The fixed locking member is disposed on one of the first movable member and the second movable member, and the movable locking member is disposed on the other. The movable locking member moves in a set direction to lock or unlock with the fixed locking member.

[0005] Furthermore, it also includes a switching component, which is connected in cooperation with the movable locking component. The switching component is configured to be movable or rotatable, and when the switching component is activated, it drives the movable locking component to move.

[0006] Furthermore, the switching component is provided with a limiting groove, the movable locking component is provided with a limiting post for sliding cooperation with the limiting groove, one end of the limiting groove is provided with a slot, and a narrowing structure for engaging the limiting post is provided between the slot and the limiting groove.

[0007] Furthermore, the action of the movable locking member is one or more combinations of translation, rotation, and deformation.

[0008] Furthermore, both the fixed locking member and the movable locking member are provided with racks, and the racks of the fixed locking member and the movable locking member engage with each other to form a lock.

[0009] Furthermore, one of the first movable member and the second movable member is provided with a rotating shaft, and the other is provided with a shaft hole for insertion and engagement with the rotating shaft. The fixing and locking members are distributed along the circumference of the rotating shaft or the circumference of the shaft hole.

[0010] Furthermore, the first movable member is provided with a rotating shaft, the second movable member is provided with a shaft hole for rotatable connection of the rotating shaft, the fixed locking member is provided on the second movable member and distributed along the circumferential direction of the shaft hole, the movable locking member is connected to the first movable member, the movable locking member is made of elastic material, and the first movable member is provided with a slidingly fitted switching member, the movement of the switching member drives the movable locking member to deform, so as to lock or unlock the movable locking member and the fixed locking member.

[0011] Furthermore, the first movable member is provided with a shaft hole, the second movable member is provided with a rotating shaft for rotatably engaging with the shaft hole, the fixed locking member is provided on the second movable member and distributed along the circumferential direction of the rotating shaft, the movable locking member is slidably engaged with the first movable member, and the first movable member is also slidably engaged with a switching member, the movement of the switching member drives the movable locking member to move along the axial direction of the rotating shaft, so as to lock or unlock the movable locking member and the fixed locking member.

[0012] Furthermore, the first movable member is provided with a rotating shaft, the second movable member is provided with a shaft hole for rotatable engagement with the rotating shaft, the fixed locking member is provided on the second movable member and distributed along the circumferential direction of the shaft hole, the movable locking member is slidably engaged with the first movable member, and the first movable member is also rotatably engaged with a switching member, the rotation of the switching member drives the movable locking member to move, so as to lock or unlock the movable locking member and the fixed locking member.

[0013] Furthermore, it also includes an intermediate component, on which a first shaft and a second shaft are provided. The first movable component and the second movable component are respectively provided with a first hole for rotatable engagement with the first shaft and a second hole for rotatable engagement with the second shaft. The fixing locking component includes a first fixing rack and a second fixing rack respectively provided on the first movable component and the second movable component. The first fixing rack is distributed along the circumferential direction of the first hole, and the second fixing rack is distributed along the circumferential direction of the second hole. The movable locking component is slidably engaged with the intermediate component. The movable locking component is respectively provided with a first movable rack for locking / unlocking with the first fixed rack and a second movable rack for locking / unlocking with the second fixed rack.

[0014] In summary, the advantages of this invention are: This invention features a self-locking structure configured on the interconnection of two movable parts. By setting a fixed locking element and a movable locking element in the relative movement direction of the two movable parts, the locking and unlocking effects are switched by the movement of the movable locking element. The locking structure is simple and effective, and is designed separately from the connection structure of the movable parts, so it is not affected by the wear and tear of the two movable parts. This ensures that the locking effect remains effective for a long time and greatly improves durability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention.

[0016] Figure 2 for Figure 1 A schematic diagram of the internal structure of the device.

[0017] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of the present invention.

[0018] Figure 4 for Figure 3 A schematic diagram of the internal structure of the device.

[0019] Figure 5 This is a schematic diagram of the structure of Embodiment 3 of the present invention.

[0020] Figure 6 for Figure 5 A schematic diagram of the internal structure of the device.

[0021] Figure 7 This is a schematic diagram of the structure of Embodiment 4 of the present invention.

[0022] Figure 8 for Figure 7 A schematic diagram of the explosion structure.

[0023] Figure 9 for Figure 8 A structural diagram from another perspective.

[0024] The diagram shows the following components: 1. First movable component; 11. Rotating shaft; 12. Shaft hole; 13. First hole; 14. Second hole; 15. First fixed rack; 16. Second fixed rack; 2. Second movable component; 3. Movable locking component; 31. First movable rack; 32. Second movable rack; 4. Switching component; 41. Limiting groove; 51. Protrusion; 52. Through hole; 6. Intermediate component; 61. First shaft; 62. Second shaft. Detailed Implementation

[0025] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0026] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0027] In this embodiment of the invention, all directional indicators (such as up, down, left, right, front, back, lateral, longitudinal, etc.) are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0028] Due to installation errors and other reasons, the parallel relationship referred to in the embodiments of the present invention may actually be an approximate parallel relationship, and the perpendicular relationship may actually be an approximate perpendicular relationship.

[0029] This invention provides a model self-locking joint, mainly used in models such as figurines and toys, for locking and unlocking between two or more interconnected parts.

[0030] Specifically, the self-locking joint includes a first movable member 1 and a second movable member 2 connected to each other. The first movable member 1 and the second movable member 2 form a connection that can move relative to each other in a set direction. The movement forms include, but are not limited to, relative rotation and relative sliding.

[0031] In some preferred embodiments, when the first movable member 1 and the second movable member 2 are configured to rotate relative to each other, a rotating shaft 11 is provided on one of the first movable member 1 and the second movable member 2, and a shaft hole 12 for inserting and engaging with the rotating shaft 11 is provided on the other, so that the first movable member 1 and the second movable member 2 rotate relative to each other with the axis of the rotating shaft 11 as the rotation center.

[0032] In other embodiments, when the first movable member 1 and the second movable member 2 are configured to slide relative to each other, a groove is provided on one of the first movable member 1 and the second movable member 2, and a sliding part is provided on the other for slidingly engaging with the groove, so that the first movable member 1 and the second movable member 2 slide relative to each other along the engagement direction of the sliding part and the groove.

[0033] The self-locking joint also includes a self-locking structure for locking and unlocking the relative movements of the first movable member 1 and the second movable member 2. The self-locking structure includes a fixed locking member and a movable locking member 3. The fixed locking member is disposed on one of the first movable member 1 and the second movable member 2, and the movable locking member 3 is disposed on the other of the first movable member 1 and the second movable member 2. The movable locking member 3 is configured to move within a set range along a set direction to form two position states: the movable locking member 3 and the fixed locking member cooperate with each other, and the movable locking member 3 and the fixed locking member are separated from each other. In the cooperated state, the relative movements of the first movable member 1 and the second movable member 2 are locked. In the separated state, the first movable member 1 and the second movable member 2 can move relative to each other.

[0034] In some preferred embodiments, the movement of the movable locking member 3 can be translation, rotation, deformation, etc.

[0035] In some preferred embodiments, both the fixed locking member and the movable locking member 3 are configured as rack structures. The movable locking member 3 and the fixed locking member are engaged by the meshing of racks. By configuring the distribution direction of the racks to be linear, arc-shaped, or circular, a locking mechanism is formed for relative sliding and relative rotational movements.

[0036] In some preferred embodiments, the self-locking structure further includes a switching element 4, which is used by the user to actively switch the action of the movable locking element 3. The switching element 4 is connected to the movable locking element 3 and is configured to be movable or rotatable. When the switching element 4 is activated, it drives the movable locking element 3 to move in conjunction. Furthermore, the switching element 4 is provided with a locking part for locking the movable locking element 3 to keep the position of the movable locking element 3 constant in the engaged or disengaged state.

[0037] More preferably, the switching element 4 and the active locking element 3 are simultaneously disposed on one of the first movable element 1 and the second movable element 2.

[0038] Example 1: Reference Figure 1 and Figure 2 In this embodiment, the first movable member 1 is provided with a rotating shaft 11, and the second movable member 2 is provided with a shaft hole 12. The first movable member 1 and the second movable member 2 are configured to rotate relative to each other. The fixed locking member is a rack, which is provided on the second movable member 2. The rack is arranged in a circumferential direction with the axis of the shaft hole 12 as the center, and the tooth protrusion direction of the rack is radially outward from the axis of the shaft hole 12. The movable locking member 3 is a rack, and the rack of the movable locking member 3 is arranged opposite to the rack of the fixed locking member.

[0039] The movable locking member 3 is made of a material with a certain degree of elasticity, which can produce elastic deformation under the action of external force. The two ends of the movable locking member 3 are respectively provided with protrusions 51. The first movable member 1 is provided with a through hole 52 for accommodating the protrusions 51, so that the movable locking member 3 and the first movable member 1 are installed together. When the middle part of the movable locking member 3 is subjected to a pushing force in the direction of the fixed locking member, the movable locking member 3 will produce a corresponding deformation, so that the teeth on it mesh with the teeth on the fixed locking member, thereby producing a locking effect and locking the relative rotation of the first movable member 1 and the second movable member 2. The through hole 52 is provided with a set width for the protrusions 51 to slide in it, so that when the movable locking member 3 deforms, the through hole 52 guides and limits the movement direction of the protrusions 51, ensuring that the movable locking member 3 deforms in the required direction.

[0040] The first movable member 1 is also provided with a switching member 4, which slides with the first movable member 1 and can slide along a set direction. The switching member 4 is provided with a limiting groove 41, and the movable locking member 3 is provided with a limiting post for cooperating with the limiting groove 41. The limiting groove 41 has a set direction. When the switching member 4 moves, it will synchronously drive the limiting post to slide in the limiting groove 41, thereby driving the movable locking member 3 to deform through the movement of the limiting post. One end of the limiting groove 41 is provided with a slot. The connection position between the slot and the limiting groove 41 is set with a constricted structure, so that the limiting post will be squeezed and deformed when it enters the slot from the limiting groove 41. In this embodiment, when the limiting post is located in the slot, the movable locking member 3 and the fixed locking member are locked. The constricted structure makes the locking state more stable.

[0041] Example 2: Reference Figure 3 and Figure 4 In this embodiment, the first movable member 1 is provided with a shaft hole 12, and the second movable member 2 is provided with a rotating shaft 11. The first movable member 1 and the second movable member 2 are configured to rotate relative to each other. The fixed locking member is a rack, which is provided on the second movable member 2 and is located at the axial end of the rotating shaft 11. The rack is distributed in a circumferential direction with the axis of the rotating shaft 11 as the center, and the direction of the tooth protrusion is the axial direction of the rotating shaft 11. The movable locking member 3 is a rack, and the rack of the movable locking member 3 is arranged opposite to the rack of the fixed locking member.

[0042] The first movable member 1 is provided with a guide rail, and the movable locking member 3 slides with the guide rail and can slide along the direction of the guide rail. The direction of the guide rail is set to be the same as the axial direction of the rotating shaft 11. Thus, during the sliding of the movable locking member 3, the rack of the movable locking member 3 is relatively closer to or further away from the rack of the fixed locking member along the axial direction of the rotating shaft 11. When the movable locking member 3 moves closer to the fixed locking member, the racks of the two will approach and mesh, thereby forming a locking effect and locking the relative rotation of the first movable member 1 and the second movable member 2.

[0043] The first movable member 1 is also provided with a switching member 4, which slides with the first movable member 1 and can slide along a set direction. The switching member 4 is provided with a limiting groove 41, and the movable locking member 3 is provided with a limiting post for cooperating with the limiting groove 41. The limiting groove 41 has a set direction. When the switching member 4 moves, it will synchronously drive the limiting post to slide in the limiting groove 41, thereby driving the movable locking member 3 to move axially through the action of the limiting post. One end of the limiting groove 41 is provided with a slot. The connection position between the slot and the limiting groove 41 is set with a constricted structure, so that the limiting post will be squeezed and deformed when it enters the slot from the limiting groove 41. In this embodiment, when the limiting post is located in the slot, the movable locking member 3 and the fixed locking member are locked. The constricted structure makes the locking state more stable.

[0044] Example 3: Reference Figure 5 and Figure 6 In this embodiment, the first movable member 1 is provided with a rotating shaft 11, and the second movable member 2 is provided with a shaft hole 12. The first movable member 1 and the second movable member 2 are configured to rotate relative to each other. The fixed locking member is a rack, which is provided on the second movable member 2. The rack is distributed along the circumferential direction of the shaft hole 12, and the direction of the tooth protrusion of the rack is radially inward of the shaft hole 12. The movable locking member 3 is a rack, and the rack of the movable locking member 3 is arranged opposite to the rack of the fixed locking member.

[0045] The first movable member 1 is provided with a guide rail, and the movable locking member 3 slides with the guide rail and can slide along the direction of the guide rail. The direction of the guide rail is set to be the same as the radial direction of the shaft hole 12. Thus, during the sliding of the movable locking member 3, the rack of the movable locking member 3 is relatively closer to or farther away from the rack of the fixed locking member along the radial direction of the shaft hole 12. When the movable locking member 3 moves closer to the fixed locking member, the racks of the two will approach and mesh, thereby forming a locking effect and locking the relative rotation of the first movable member 1 and the second movable member 2.

[0046] The first movable member 1 is also provided with a switching member 4, which rotates with the first movable member 1. The switching member 4 is provided with a limiting groove 41, and the movable locking member 3 is provided with a limiting post for cooperating with the limiting groove 41. The limiting groove 41 has a set direction. When the switching member 4 rotates, it will synchronously drive the limiting post to slide in the limiting groove 41, thereby driving the movable locking member 3 to move radially through the action of the limiting post. One end of the limiting groove 41 is provided with a slot. The connection position between the slot and the limiting groove 41 is set with a constricted structure, so that the limiting post will be squeezed and deformed when it enters the slot from the limiting groove 41. In this embodiment, when the limiting post is located in the slot, the movable locking member 3 and the fixed locking member are locked. The constricted structure makes the locking state more stable.

[0047] Example 4: Reference Figures 7 to 9 This embodiment includes a first movable member 1, a second movable member 2, and an intermediate member 6. The intermediate member 6 is provided with a first shaft 61 and a second shaft 62. The first movable member 1 and the second movable member 2 are respectively provided with a first hole 13 and a second hole 14. The first movable member 1 and the second movable member 2 form a rotational engagement with the intermediate member 6 through the first shaft 61 and the second shaft 62, so that the first movable member 1 and the second movable member 2 rotate relative to the intermediate member 6. The fixing and locking members respectively include a first fixing rack 15 provided on the first movable member 1 and a second fixing rack 16 provided on the second movable member 2. The first fixing rack 15 is distributed along the circumferential direction of the first hole 13, and the tooth protrusion direction is radially inward. The second fixing rack is distributed along the circumferential direction of the second hole 14, and the tooth protrusion direction is radially outward.

[0048] The movable locking member 3 is disposed on the intermediate member 6, which is provided with a guide rail. The movable locking member 3 slides with the guide rail and can slide along the direction of the guide rail. The direction of the guide rail is set to be the same as the radial direction of the first hole 13. The movable locking member 3 is provided with a first movable rack 31 and a second movable rack 32. The first movable rack 31 is disposed opposite to the first fixed rack 15 in the radial direction of the first hole 13, and the second movable rack 32 is disposed opposite to the second fixed rack 16 in the radial direction of the second hole 14. Preferably, the first shaft 61 and the second shaft 62 are perpendicular to each other. Therefore, when the movable locking member 3 moves radially along the first hole 13, the first movable rack 31 and the second movable rack 32 lock or unlock the first fixed rack 15 and the second fixed rack 16 simultaneously, respectively.

[0049] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

Claims

1. A model self-locking joint, characterized by, The self-locking structure comprises a fixed locking member and a movable locking member, one of the first movable member and the second movable member is provided with the fixed locking member, and the other is provided with the movable locking member, and the movable locking member is movable in a certain direction to form locking or unlocking with the fixed locking member.

2. A model self-locking joint according to claim 1, characterized in that The switching member is movably connected with the movable locking member, and the switching member is configured to be movable or rotatable, and the switching member drives the movable locking member to move when the switching member moves.

3. A model self-locking joint according to claim 2, characterized in that The switching member is provided with a limiting groove, and the movable locking member is provided with a limiting column for slidingly connecting with the limiting groove, one end of the limiting groove is provided with a clamping groove, and the clamping groove and the limiting groove are provided with a necking structure for clamping the limiting column.

4. A model self-locking joint according to claim 1, characterized in that, The movement of the movable locking member is one or a combination of translation, rotation and deformation.

5. A model self-locking joint according to claim 1, wherein The fixed locking member and the movable locking member are both provided with a rack, and the racks of the fixed locking member and the movable locking member are oppositely engaged to form locking.

6. A model self-locking joint according to claim 5, characterized in that One of the first movable member and the second movable member is provided with a rotating shaft, and the other is provided with a shaft hole for plug-in connection with the rotating shaft, and the fixed locking member is distributed along the circumference of the rotating shaft or the shaft hole.

7. A self-locking model joint according to any one of claims 1-6, characterized in that, The first movable member is provided with a rotating shaft, the second movable member is provided with a shaft hole for rotating connection with the rotating shaft, the fixed locking member is arranged on the second movable member and is distributed along the circumferential direction of the shaft hole, the movable locking member is connected with the first movable member, the movable locking member is made of elastic material, the switching member is slidingly connected with the first movable member, and the movement of the switching member drives the movable locking member to deform to form locking or unlocking between the movable locking member and the fixed locking member.

8. A self-locking model joint according to any one of claims 1-6, characterized in that, The first movable member is provided with a shaft hole, the second movable member is provided with a rotating shaft for rotating connection with the shaft hole, the fixed locking member is arranged on the second movable member and is distributed along the circumferential direction of the rotating shaft, the movable locking member is slidingly connected with the first movable member, and the switching member is slidingly connected with the first movable member, and the movement of the switching member drives the movable locking member to move along the axial direction of the rotating shaft to form locking or unlocking between the movable locking member and the fixed locking member.

9. A model self-locking joint according to any one of claims 1-6, characterized in that, The first movable member is provided with a rotating shaft, the second movable member is provided with a shaft hole for rotating connection with the rotating shaft, the fixed locking member is arranged on the second movable member and is distributed along the circumferential direction of the shaft hole, the movable locking member is slidingly connected with the first movable member, and the switching member is rotatingly connected with the first movable member, and the rotation of the switching member drives the movable locking member to move to form locking or unlocking between the movable locking member and the fixed locking member.

10. A model self-locking joint according to any one of claims 1-6, characterized in that, Further comprising a middle piece, the first shaft and the second shaft are arranged on the middle piece, the first movable piece and the second movable piece are respectively arranged with a first hole for the first shaft to rotate and fit and a second hole for the second shaft to rotate and fit, the fixed locking piece comprises a first fixed rack and a second fixed rack arranged on the first movable piece and the second movable piece respectively, the first fixed rack is distributed along the circumferential direction of the first hole, the second fixed rack is distributed along the circumferential direction of the second hole, the movable locking piece is in sliding fit with the middle piece, and the movable locking piece is respectively arranged with a first movable rack for locking / unlocking with the first fixed rack and a second movable rack for locking / unlocking with the second fixed rack.

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