Shaft hole assembly type building block

Abstract

An existing building block structure generally depends on deformation characteristics of elastic materials (such as plastics) to achieve interference fit of shaft holes, so that building blocks must have the elastic deformation capacity, and application of rigid materials such as metal and stone is seriously restricted. Meanwhile, two contradictions of an assembly mode exist in the prior art: if interference fit is completely adopted, the connection is stable, but the disassembly and assembly are time-consuming; if only clearance fit is used, the structure is loose and easy to deform. The elastic body protection layer structure is introduced, the end of the rigid connecting rod piece is sleeved with the elastic body protection layer, interference fit is achieved on the premise that rigid materials do not depend on self deformation, and material limitation is effectively broken through. Meanwhile, a mixed assembly mode is adopted, interference fit is adopted at core connection nodes (such as positioning hole channels) to ensure stability, clearance fit is adopted at non-core nodes (such as through hole channels) to improve the assembly efficiency, and therefore the dual requirements of efficient assembly and stable structure are cooperatively achieved.

Description

Technical Field

[0001] This utility model relates to the field of toys, and in particular to a shaft-hole assembled building block. Technical Background

[0002] Existing building block structures generally rely on the deformation characteristics of elastic materials (such as plastics) to achieve interference fits between shafts and holes. This necessitates that building blocks possess elastic deformation capabilities, severely restricting the application of rigid materials such as metals and stone. Furthermore, existing technologies present a paradoxical situation regarding assembly methods: while interference fits provide a stable connection, they are time-consuming to assemble and disassemble; while clearance fits result in a loose structure prone to deformation. Existing mortise and tenon joints, although providing a stable connection, are structurally complex and involve cumbersome assembly steps, making them unsuitable for most users.

[0003] This application introduces an elastomer protective layer structure. By sleeved with an elastomer protective layer at the ends of rigid connecting rods, the rigid material achieves an interference fit without relying on its own deformation, effectively overcoming material limitations. Simultaneously, a hybrid assembly mode is adopted, using interference fits at core connection nodes (such as positioning holes) to ensure stability, and clearance fits at non-core nodes (such as through holes) to improve assembly efficiency. This synergistically achieves the dual requirements of efficient assembly and structural stability, and significantly reduces assembly complexity compared to mortise and tenon joints.

[0004] Furthermore, this application innovatively sets the through-hole and positioning hole coaxially to form a countersunk hole structure, enabling individual building block units to support both rapid assembly and stable connection, facilitating unified mold making and production; in addition, the building block units support alternating assembly, thereby simulating the joint patterns of real building structures. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a shaft-hole assembly type building block, as follows:

[0006] A type of axially-hole assembled building block, characterized in that it comprises:

[0007] Connecting rods;

[0008] and building blocks, the building blocks comprising one or more types selected from:

[0009] The first type of building block unit has at least one through hole in its main body;

[0010] The second type of building block unit has at least one positioning hole in its main body;

[0011] The third type of building block unit has both the through hole and the positioning hole in its main body;

[0012] The through hole refers to a through hole that forms a clearance fit with the connecting rod;

[0013] The positioning channel refers to a channel that meets any of the following conditions:

[0014] (a) A blind hole that is closed at one end to restrict the movement of the connecting rod;

[0015] (b) A through hole or blind hole that forms a detachable connection with the connecting rod to restrict the movement of the connecting rod;

[0016] At least one of the connecting rods and at least one of the through-holes are configured to be clearance fit;

[0017] At least one of the connecting rods and at least one of the positioning channels are configured to be detachably connected;

[0018] When the shaft hole assembly building block includes a first type of building block unit, it further includes at least one of a second type of building block unit and a third type of building block unit.

[0019] Optionally, the connection method of the connecting rod includes at least one of the following:

[0020] (a) An interconnection mechanism is provided at the end of the connecting rod, wherein the interconnection mechanism is selected from: a mechanical snap-fit ​​structure, a threaded fit structure, a magnetic adsorption component or an interference fit structure;

[0021] (b) The connection is achieved through the positioning holes of the second type of building block unit or the third type of building block unit, and the two connecting rods are respectively inserted into the positioning holes in the same building block unit in opposite directions or at an angle.

[0022] Optionally, the detachable connection is an interference fit structure.

[0023] Optionally, the interference fit structure adopts a thin-walled sleeve design to improve the deformation capability of the positioning channel in the interference fit structure. The thin-walled sleeve design includes a sleeve, and the positioning channel in the interference fit structure is formed by the inner side wall of the sleeve. The interference fit with the connecting rod is achieved through the elastic deformation of the sleeve.

[0024] Optionally, the through-hole also adopts a thin-walled sleeve design to reduce the amount of material used, and the thin-walled sleeve design includes a sleeve.

[0025] Optionally, the interference fit structure includes an elastomeric protective layer coaxially sleeved on the end of the connecting rod, one end of which is a closed structure. After the elastomeric protective layer is deformed under pressure, its outer wall forms an interference fit with the positioning channel in the interference fit structure, and its inner wall forms an interference fit with the connecting rod. The tight connection of the overall assembly is achieved through the double interference fit. The design of the elastomeric protective layer is for second-type or third-type building block units made of rigid materials. The deformation of the elastomeric protective layer compensates for the insufficient deformation of the rigid positioning channel due to the limitations of material properties.

[0026] Furthermore, the axial hole assembly building block includes a third type of building block unit. In at least one third type of building block unit, the through hole and the positioning hole are coaxially arranged to form a countersunk hole structure, wherein the diameter of the through hole is smaller than that of the positioning hole, and the positioning holes are respectively located at both ends of the through hole.

[0027] Optionally, the first type of building block unit includes a subclass with 2n through holes, where n is a positive integer ≥1, and the 2n through holes are arranged in a single row, with adjacent holes being axially parallel and equally spaced.

[0028] Furthermore, the first type of building block unit further includes another subtype having n through holes, where n is a positive integer ≥1. When n≥2, the n through holes are arranged in a single row, with adjacent holes being axially parallel and equally spaced.

[0029] Optionally, when the first type of building block unit is made of a rigid material, the second type of building block unit and the third type of building block unit are made entirely or partially of an elastic material.

[0030] By adopting the above technical solution, this utility model has the following beneficial effects:

[0031] For the second or third type of building block units made of elastic materials, the interference fit with the connecting rods is achieved through the elastic deformation characteristics of the thin-walled sleeve; the positioning channel formed by the thin wall has a stronger deformation capacity than the positioning channel formed by the non-thin wall.

[0032] For second- or third-class building block units made of rigid materials, an elastomeric protective layer is applied to the surface of the connecting rods, allowing the rigid materials to achieve an interference fit without deformation, thus overcoming material limitations. One end of the elastomeric protective layer is a closed structure, effectively preventing axial sliding of the connecting rods during assembly.

[0033] Another solution to overcome material limitations is to use first-type building blocks made of rigid materials and second- or third-type building blocks made of elastic materials. However, the combination of building blocks made of different materials may affect visual harmony.

[0034] By adopting a hybrid assembly mode, the through-holes and positioning holes are combined. The core nodes are detachable to ensure the stability of the overall structure, while the non-core nodes are gap-fitted to improve assembly efficiency, thereby achieving the dual optimization of "efficient assembly and stable solidification".

[0035] The connecting rods have two connection methods, thus avoiding the use of excessively long rods by segmented connection and reducing the space occupied during packaging.

[0036] The through holes and positioning holes are coaxially arranged to form a countersunk hole structure, which enables the same building block unit to have both rapid assembly and stable connection functions. In this way, the building block unit can contain only the third type of building block unit, which facilitates unified mold opening and production.

[0037] The first type of building block unit includes a subclass with 2n through holes, so that the building block units can be stacked alternately to simulate the joint features of real building structures.

[0038] The first type of building block unit includes another subclass with n through holes, so that the end faces can be filled when alternately building non-closed structures. Attached Figure Description

[0039] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0040] Figure 1 It is a type of shaft-hole assembled building block;

[0041] Figure 2 This is a type of axial hole assembly building block that adopts a thin-walled sleeve design;

[0042] Figure 3 A type of axial-hole assembly building block with an elastic protective layer fitted onto connecting rods;

[0043] Figure 4 A type of axial-hole assembly block where the through hole and the positioning hole are coaxially arranged to form a countersunk hole structure;

[0044] Figure 5 A diagram illustrating the alternating construction of building blocks;

[0045] Figure 6 A schematic diagram illustrating the alternating construction of irregularly shaped building blocks;

[0046] In the diagram: 1. First type of building block unit; 2. Second type of building block unit; 3. Third type of building block unit; 4. Connecting rod; 5. Through hole; 6. Positioning hole; 7. Clearance fit; 8. Detachable connection; 10. Subclass with 2n through holes; 11. Another subclass with n through holes; 40. Interconnection mechanism; 80. Elastomer protective layer; 81. Sleeve; 82. Support rib; Detailed Implementation

[0047] It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this utility model can be combined with each other. In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0048] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal connection of two components; detachable connections include, but are not limited to, mechanical snap-fit ​​structures, threaded fit structures, magnetic adsorption components, or interference fit structures; the term "sleeve" should be interpreted broadly, and the cross-sectional shapes of its inner and outer walls include, but are not limited to, circular or polygonal structures, and the shapes of the inner and outer walls can be independently selected and configured, such as a combination of a circular inner wall and a polygonal outer wall; for those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

[0049] See Figure 1 In one embodiment, the axial hole assembly block includes a connecting rod (4) and a block unit, the block unit including one or more of the following:

[0050] The first type of building block unit (1) has at least one through hole (5) in its main body;

[0051] The second type of building block unit (2) has at least one positioning hole (6) in its main body;

[0052] The third type of building block unit (3) has both the through hole (5) and the positioning hole (6) in its main body;

[0053] The connecting rod (4) and the through hole (5) are configured with a clearance fit (7), and the end of the connecting rod (4) is configured with a part of the positioning hole (6) as a detachable connection (8), and is configured with a clearance fit (7) with the positioning hole (6) which is not configured as a detachable connection (8). This part of the positioning hole (6) restricts the movement of the connecting rod (4) by closing one end. The detachable connection (8) is an interference fit. The interference fit ensures the overall structural stability. The gap design improves the assembly efficiency, thereby achieving the dual optimization of "efficient assembly - stable solidification".

[0054] In the figure, an interconnection mechanism (40) is provided at the end of the connecting rod (4). The interconnection mechanism (40) adopts a magnetic adsorption component, thereby avoiding the use of excessively long rods by segmented connection, so as to reduce the space occupied during packaging.

[0055] In addition, the connection method can be achieved through the positioning holes (6) of the second type of building block unit (2) or the third type of building block unit (3). The two connecting rods (4) are respectively inserted into the positioning holes (6) in the same building block unit in opposite directions or at an angle. When they are set at an angle, the direction of the connection of the connecting rods (4) is no longer limited to a straight line, thus making it more flexible to build the model.

[0056] See Figure 2 In one embodiment, the detachable connection (8) is constructed as an interference fit structure. The interference fit structure adopts a thin-walled sleeve design. The thin-walled sleeve design includes a sleeve (81). The positioning channel (6) is formed by the inner sidewall of the sleeve (81). The interference fit with the connecting rod (4) is achieved through the elastic deformation of the sleeve (81). The thin-walled sleeve design can improve the deformation capacity of the positioning channel (6). The through channel (5) also adopts a thin-walled sleeve design to reduce the amount of material used. The thin-walled sleeve design includes a sleeve (81). Optionally, a support rib (82) is included around the sleeve (81). The support rib (82) is connected to the outer surface of the sleeve (81).

[0057] See Figure 3 In one embodiment, the detachable connection (8) is constructed as an interference fit structure, which includes an elastomeric protective layer (80) sleeved on the end of the connecting rod (4). The elastomeric protective layer (80) adopts a sleeve structure with one end closed. Its introduction allows the rigid material to achieve an interference fit without deformation, thereby breaking through the material limitations of the building block unit and the connecting rod (4).

[0058] See Figure 4In one embodiment, the through hole (5) and the positioning hole (6) in the third type of building block unit (3) are coaxially arranged to form a countersunk hole structure. The diameter of the through hole (5) is smaller than that of the positioning holes (6) at both ends. The building block unit can achieve both rapid splicing and stable connection functions by using only the third type of building block unit (3), which is conducive to unified mold opening and mass production.

[0059] See Figure 5 In one embodiment, the first type of building block unit (1) includes a subclass (10) with 2n through holes, where n is a positive integer ≥1. The 2n through holes (5) are arranged in a single row, with adjacent holes maintaining axial parallelism and equal spacing. This allows the building block units to be built alternately, simulating the joint features of a real building structure. The first type of building block unit (1) also includes another subclass (11) with n through holes. When n≥2, the n through holes (5) are also arranged in a single row with axial parallelism and equal spacing, thus allowing the end faces to be filled when alternately building non-closed structures. Figure 5 In this case, n = 1.

[0060] See Figure 6 In one embodiment, the first type of building block unit (1), the second type of building block unit (2), and the third type of building block unit (3) can be designed as an integral structure or a separate module as needed, and their shapes are not limited.

[0061] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A type of axial-hole assembled building block, characterized in that, include: Connecting rods; and building blocks, the building blocks comprising one or more types selected from: The first type of building block unit has at least one through hole in its main body; The second type of building block unit has at least one positioning hole in its main body; The third type of building block unit has both the through hole and the positioning hole in its main body; The through hole refers to a through hole that forms a clearance fit with the connecting rod; The positioning channel refers to a channel that meets any of the following conditions: (a) A blind hole that is closed at one end to restrict the movement of the connecting rod; (b) A through hole or blind hole that forms a detachable connection with the connecting rod to restrict the movement of the connecting rod; At least one of the connecting rods and at least one of the through-holes are configured to be clearance fit; At least one of the connecting rods and at least one of the positioning channels are configured to be detachably connected; When the shaft hole assembly building block includes a first type of building block unit, it further includes at least one of a second type of building block unit and a third type of building block unit.

2. The shaft-hole assembly type building block according to claim 1, characterized in that: The connection method of the connecting rod includes at least one of the following: (a) An interconnection mechanism is provided at the end of the connecting rod, wherein the interconnection mechanism is selected from: a mechanical snap-fit ​​structure, a threaded fit structure, a magnetic adsorption component or an interference fit structure; (b) The connection is achieved through the positioning holes of the second type of building block unit or the third type of building block unit, and the two connecting rods are respectively inserted into the positioning holes in the same building block unit in opposite directions or at an angle.

3. The shaft-hole assembly type building block according to claim 1, characterized in that: The detachable connection is an interference fit structure.

4. The shaft-hole assembly type building block according to claim 3, characterized in that: The interference fit structure adopts a thin-walled sleeve design to improve the deformation capability of the positioning channel in the interference fit structure. The thin-walled sleeve design includes a sleeve, and the positioning channel in the interference fit structure is formed by the inner side wall of the sleeve. The interference fit with the connecting rod is achieved through the elastic deformation of the sleeve.

5. The shaft-hole assembly type building block according to claim 1, characterized in that: The through-hole also adopts a thin-walled sleeve design to reduce the amount of material used. The thin-walled sleeve design includes a sleeve.

6. The shaft-hole assembly type building block according to claim 3, characterized in that: The interference fit structure includes an elastic protective layer coaxially sleeved on the end of the connecting rod, and one end of the elastic protective layer is a closed structure. After the elastomer protective layer is deformed under pressure, its outer wall forms an interference fit with the positioning channel in the interference fit structure, and its inner wall forms an interference fit with the connecting rod. The tight connection of the overall assembly is achieved through the double interference fit. The design of the elastomeric protective layer is for second- or third-class building blocks made of rigid materials. The deformation of the elastomeric protective layer compensates for the insufficient deformation of the rigid positioning channels caused by the limitations of material properties.

7. The shaft-hole assembly type building block according to claim 6, characterized in that: The axial hole assembly building block includes a third type of building block unit. In at least one of the third type of building block units, the through hole and the positioning hole are coaxially arranged to form a countersunk hole structure. The diameter of the through hole is smaller than that of the positioning hole, and the positioning holes are respectively located at both ends of the through hole.

8. The shaft-hole assembly type building block according to claim 1, characterized in that: The first type of building block unit includes a subclass with 2n through holes, where n is a positive integer ≥1. The 2n through holes are arranged in a single row, with adjacent holes being axially parallel and equally spaced.

9. The shaft-hole assembly type building block according to claim 8, characterized in that: The first type of building block unit also includes another subtype with n through holes, where n is a positive integer ≥1. When n≥2, the n through holes are arranged in a single row, with adjacent holes having parallel axes and equal spacing.

10. The shaft-hole assembly type building block according to claim 1, characterized in that: When the first type of building block unit is made of rigid material, the second type of building block unit and the third type of building block unit are made entirely or partially of elastic material.

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