Multifunctional clamping lock type building block connecting structure

Abstract

The invention discloses a multifunctional clamping and locking type building block connecting structure, which relates to the technical field of splicing structures and comprises a barrel I, a barrel II and a clamping and locking piece. Inner sawteeth are arranged on the inner wall of the first barrel body, a plurality of sawtooth sliding blocks slide in the second barrel body in the radial direction, reset mechanisms are arranged between the sawtooth sliding blocks, and sliding block outer sawteeth are arranged on the peripheral faces of the sawtooth sliding blocks and matched with the inner sawteeth of the barrel body. A sliding-out channel is arranged on the peripheral face of the second barrel and allows the outer sawteeth of the sliding block to stretch out. The clamping and locking piece comprises a sliding rod, the top end of the sliding rod is fixedly connected with a pressing block, the middle of the sliding rod is provided with a rotary clamping and locking part used for pushing the sawtooth sliding block to move in the radial direction, and the pressing block is connected with a spring below. According to the building block, the sawtooth sliding block is driven by the clamping and locking piece to move, the upper barrel and the lower barrel are connected in an engaged mode, the problem that a traditional building block is prone to loosening due to insufficient friction force is solved, the locking mechanism is designed, tight connection or loose stacking of the building block can be achieved, the stability and diversity of building block connection are improved, and recycling and repeated using are convenient.

Description

Technical Field

[0001] The invention relates to the technical field of splicing structures, and in particular to a multifunctional locking building block connection structure. Background Art

[0002] As a classic toy, building blocks can be traced back to several centuries ago, and the popularity of modern building blocks originated in the early 20th century. The design and manufacturing technology of building blocks have undergone many innovations, from the original wooden building blocks to modern plastic building blocks, and the connection method has also developed from simple stacking to complex mechanical connection structures.

[0003] Building blocks usually consist of one side with raised dots and the other side with grooves or hollow pipes. The raised dots are squeezed to create interference fit with the holes and side walls, and a tight connection is achieved using the elasticity and friction of the material. This connection method does not require additional fasteners and achieves a tight fit based on friction. However, the connection method based on friction is prone to gradually fail or become loose as the number of uses increases.

[0004] In view of this, it is necessary to propose a multifunctional locking building block connection structure to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a multifunctional locking building block connection structure to solve the above-mentioned technical problems existing in the prior art.

[0006] To achieve the above-mentioned purpose, the present invention provides the following scheme: a multifunctional locking building block connection structure, comprising a cylinder body 1, a cylinder body 2 and a locking member: the inner wall of the cylinder body 1 has a plurality of internal cylinder serrations; the cylinder body 2 is coaxially fixed to the bottom of the cylinder body 1, and the outer diameter of the cylinder body 2 is smaller than the inner diameter of the cylinder body 1; a plurality of sawtooth sliders are radially slidable inside the cylinder body 2, and the outer peripheral surface of the sawtooth slider is provided with slider outer serrations matching the internal cylinder serrations; the peripheral surface of the cylinder body 2 is provided with slide-out channels corresponding to the sawtooth sliders one by one, and the slide-out channels allow the slider outer serrations to slide out. The locking member comprises a sliding rod which passes through the axial direction of the cylinders one and two, a pressure block is fixedly connected to the top end of the sliding rod, and a spring is arranged on the sliding rod jacket between the pressure block and the bottom of the cylinder one; the sliding rod which extends into the center of each serrated slider is provided with a plurality of rotating locking parts which slide with the serrated slider, and squeeze the locking member, and the rotating locking parts push the serrated slider to slide radially outward along the cylinder two, so that the outer serrations of the slider extend out of the sliding channel; the locking member also comprises a locking mechanism which performs axial positioning by rotation; a reset mechanism is arranged between each of the serrated sliders.

[0007] In certain optional embodiments of the present invention, the locking member also includes a connecting portion that rotatably cooperates with the serrated slider, and the connecting portion includes blocking teeth, protrusions and recesses that are evenly arranged circumferentially. By rotating the locking member, the protrusions and recesses can be switched to abut against the serrated slider respectively to achieve locking and unlocking, and the blocking teeth limit the rotation limit of the locking member in the circumferential direction.

[0008] In certain optional embodiments of the present invention, the locking mechanism includes a fixed hook 2 fixedly connected to the bottom of the pressure block and a fixed hook 1 fixedly connected to the bottom of the cylinder 1. When the pressure block is pressed down, the fixed hook 2 is engaged with the fixed hook 1, and the pressure block is rotated to unlock.

[0009] In some optional embodiments of the present invention, a flange with an outer diameter greater than that of the cylinder one is provided between the cylinder one and the cylinder two, for forming a one-way limit from the axial direction when connected with a building block.

[0010] In some optional embodiments of the present invention, the outer peripheral side of the cylinder body 1 close to the flange is provided with an external thread for threaded connection with a nut when connected to a building block, thereby cooperating with the flange to fix the cylinder body 1 on the building block.

[0011] In some optional embodiments of the present invention, the outer peripheral surface of the cylinder body 1 is provided with cylinder outer serrations for clamping with a building block provided with building block inner serrations.

[0012] In some optional embodiments of the present invention, the reset mechanism includes a slider central axis penetrating the center of the sawtooth slider, and an elastic rubber ring sleeved on the outer ring of each slider central axis.

[0013] In some optional embodiments of the present invention, at least one end of the central axis of the slider is radially slidably connected to the second cylinder.

[0014] In some optional embodiments of the present invention, the reset mechanism includes a plurality of torsion springs disposed in the second cylinder, one end of the torsion spring abuts against the inner wall of the second cylinder, and the other end is connected to the serrated slider.

[0015] In some optional embodiments of the present invention, a plurality of elastic bevel teeth inclined downward are fixedly connected to the inner circumferential surface of the sawtooth slider, and the elastic bevel teeth cooperate with the locking member to convert the downward movement of the locking member into radial movement of the sawtooth slider.

[0016] Compared with the prior art, the present invention at least discloses the following beneficial effects:

[0017] The present invention provides a multifunctional locking building block connection structure. Through the cooperation of the serrations inside the cylinder and the serrations outside the slider, as well as the locking mechanism of the locking member, the stability and tightness of the building block connection are improved, and the problem that the traditional building block connection method is easy to loosen due to insufficient friction is solved. The connection structure of the present invention is designed with locking and unlocking functions. By rotating the locking member to switch the protrusions and recesses to abut against the serrated slider, the building blocks can be tightly connected or loosely stacked, which increases the diversity of the playing methods of the building blocks. Through the design of the pressing block and the locking member, the user can achieve the connection and disassembly of the building blocks through a simple pressing or rotating action, which is easy to operate and easy for children and adults to use. Due to the detachability of the building block connection structure, the used building blocks can be recycled and reused, which reduces waste and has environmental significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0020] Figure 2 This is an appearance diagram of the first embodiment of the present invention;

[0021] Figure 3 A schematic diagram of the structure of a sawtooth slider in an embodiment of the present invention;

[0022] Figure 4 Another structural schematic diagram of a sawtooth slider in an embodiment of the present invention;

[0023] Figure 5 A schematic diagram of the structure of a locking member in an embodiment of the present invention;

[0024] Figure 6 for Figure 5 Sectional view at AA in the middle;

[0025] Figure 7 A schematic diagram of the structure of a locking member connection portion in an embodiment of the present invention;

[0026] Figure 8 Another structural schematic diagram of the locking member connecting portion in an embodiment of the present invention;

[0027] Fig. 9 A structural schematic diagram of a building block 1 provided by the present invention;

[0028] Fig.10This is a schematic diagram of the first embodiment of the present invention used in conjunction with a first building block;

[0029] Fig.11 A schematic diagram of the structure of an electric wrench socket for assembling a nut in an embodiment of the present invention;

[0030] Fig.12 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0031] Fig.13 A structural schematic diagram of a building block 2 provided by the present invention;

[0032] Fig.14 This is a schematic diagram of the second embodiment of the present invention used in conjunction with the second building block;

[0033] Fig.15 for Fig.14 A partial enlarged view of point B in the middle;

[0034] Fig.16 This is a schematic diagram of the structure of Embodiment 3 of the present invention;

[0035] Fig.17 A cross-sectional view of the sawtooth slider in the third embodiment of the present invention.

[0036] In the figure: 100, first building block connection structure; 1, cylinder body 1; 2, external thread; 3, flange; 4, serrated slider; 5, cylinder body 2; 6, elastic rubber ring; 7, slider center axis; 8, locking piece; 81, slide bar; 82, connecting part; 83, rotating locking part; 831, recess; 832, protrusion; 833, stopper; 9, fixed hook 1; 10, spring; 11, fixed hook 2; 12, pressure block; 13, straight groove; 14, serrated inside the cylinder; 15, slide-out channel ; 16. Slider outer serrations; 17. Slider force convex block; 18. Torsion spring mounting shaft; 19. Torsion spring; 20. Elastic helical teeth; 200. Nut; 300. Building block one; 301. Building block one cavity; 400. Second building block connection structure; 401. Cylinder outer serrations; 500. Building block two; 501. Building block two cavity; 502. Hollow convex tube; 503. Building block inner serrations; 504. Limiting flange; 600. Third building block connection structure; 700. Electric wrench socket. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] Embodiment 1:

[0040] Reference Figures 1 to 11 As shown, the first embodiment of the present invention provides a multifunctional locking building block connection structure, which is defined as a first building block connection structure 100 for the convenience of distinction and description; the first building block connection structure 100 includes two upper and lower cylinders, cylinder one 1, cylinder two 5 and a flange 3 located between cylinder one 1 and cylinder two 5; the outer diameter of cylinder one 1 is slightly larger, and a plurality of cylinder internal serrations 14 are arranged on its inner cylinder wall, the outer diameter of cylinder two 5 is slightly smaller, and a serrated slider 4 is slidably extended from the outer peripheral side of the cylinder, and the outer peripheral surface of the serrated slider 4 is provided with slider external serrations 16 that match the cylinder internal serrations 14; when connected, the two first building block connection structures 100 can be inserted into the cylinder one 1 by inserting the cylinder two 5, and a reset mechanism is arranged between each of the serrated sliders 4; the locking member 8 also includes a locking mechanism for axial positioning by rotation.

[0041] In a specific embodiment, the cylinder 1, the cylinder 2 5, and the flange 3 are integrally formed, and the outer diameter of the flange 3 is larger than the outer diameters of the cylinder 1 and the cylinder 2 5, and is used to cooperate with the building blocks. For details on the specific connection method, see Figure 2 shown.

[0042] In this embodiment, an outer thread 2 is provided on a section of the outer periphery of the cylinder 1 near the flange 3, which is used to cooperate with the nut 200 to achieve connection with the building block. For details, see Fig.10 shown.

[0043] In a specific embodiment, Figure 2 As shown, a plurality of slide-out channels 15 are formed on the outer circumferential surface of the cylinder 2 5, and the slide-out channels 15 provide channels for the slider outer serrations 16 on the serration slider 4 to extend from the inside of the cylinder 2 5. It should be understood that the slide-out channel 15 can be a continuous open channel arranged along the axial direction of the cylinder 2 5 for the entire row of slider outer serrations 16 to pass through, or can be a plurality of small channels arranged at intervals along the axial direction of the cylinder 2 5 for only one slider outer serration 16 to pass through. It should also be understood that the slide-out channels 15 are evenly distributed along the circumferential side of the cylinder 2 5, and the number of the distribution channels is the same as the number of the serration slider 4.

[0044] In a specific embodiment, Figure 3 and Figure 4 As shown, there are multiple sawtooth sliders 4 distributed circumferentially in the cylinder 2 5, and the multiple sawtooth sliders 4 are evenly distributed circumferentially. Figure 3Taking an embodiment shown as an example, four sawtooth sliders 4 are provided in this embodiment, and the center of the space circle formed by the four sawtooth sliders 4 coincides with the axial direction of the cylinder 2 5. Each sawtooth slider 4 elastically slides in the cylinder 2 5 along the radial direction of the cylinder 2 5, and is driven to slide outward by the locking member 8.

[0045] Specifically, in some optional embodiments, the structure of the sawtooth slider 4 is as follows: Figure 3 As shown, the center of the sawtooth slider 4 is connected with a slider center shaft 7, and the two ends of the slider center shaft 7 extend out of the sawtooth slider 4 for a distance. The two extended ends of the slider center shaft 7 can provide guidance for the radial sliding of the sawtooth slider 4. Specifically, a radial limit block can be provided in the cylinder 5, and a slide groove is provided on the limit block. The slider center shaft 7 is limited and slides in the slide groove, providing guidance for the radial reciprocating motion of the sawtooth slider 4. At the same time, multiple slider center shafts 7 are outer-coated with elastic rubber rings 6 to provide driving force for the sawtooth slider 4 to retract and reset inward. In this embodiment, the slider center shaft 7 and the elastic rubber ring 6 constitute a reset mechanism.

[0046] In some optional embodiments, the structure of the sawtooth slider 4 is as follows: Figure 4 As shown, the bottom of the sawtooth slider 4 is fixedly connected to the slider center axis 7, and multiple slider center axes 7 are covered with elastic rubber rings 6; and the top of the sawtooth slider 4 is fixedly connected to the slider force projection 17, and correspondingly, a radial limit block is provided in the cylinder 2 5, and a torsion spring installation shaft 18 is fixedly connected to the limit block, and a torsion spring 19 is sleeved on the torsion spring installation shaft 18, and one end of the torsion spring 19 abuts against the inner wall of the cylinder 2 5, and the other end abuts against the slider force projection 17. When the sawtooth slider 4 is in the initial position, it is kept inside the cylinder 2 5 by the elastic force of the torsion spring 19; when the sawtooth slider 4 moves radially outward, the slider force projection 17 squeezes the torsion spring 19 and overcomes the elastic force of the torsion spring 19 to extend from the slide-out channel 15; when the connection structure needs to be disassembled, the squeezing force of the locking member 8 on the sawtooth slider 4 is removed, and under the elastic action of the torsion spring 19, the sawtooth slider 4 is reset to the initial position. In the above structure, the slider central axis 7 and the elastic rubber ring 6 constitute the lower reset mechanism, and the slider force projection 17, the torsion spring installation axis 18, and the torsion spring 19 constitute the upper reset mechanism.

[0047] It should be understood that the elastic rubber ring 6 and the torsion spring 19 can be arranged above the sawtooth slider 4 at the same time, and the elastic rubber ring 6 can be sleeved on the outer periphery of the slider force-bearing protrusion 17; the torsion spring 19 can also be arranged above and below the sawtooth slider 4; it should also be understood that Figure 3 and Figure 4 The elastic rubber ring 6 and the torsion spring 19 disclosed in the method can be combined arbitrarily, or one of them can be selected, as long as the reset function can be achieved.

[0048] In some optional embodiments, the serrated slider 4 can be designed to be wedge-shaped, and its inner side surface has an inclined wedge-shaped surface. Correspondingly, the locking member 8 has a rotating locking portion 83 that cooperates with the wedge-shaped surface. By pressing the locking member 8 downward, the rotating locking portion 83 moves downward, thereby generating an outward thrust on the serrated slider 4, and the outer serrations 16 of the slider on the outer side surface of the serrated slider 4 can be pushed out along the slide-out channel 15.

[0049] In a specific embodiment, Figure 4 As shown, the locking member 8 includes a slide bar 81, a rotating locking portion 83 and a connecting portion 82. The slide bar 81 passes through the center of the flange 3 and enters the cylinder 1, and is connected to a pressure block 12 at its top. A spring 10 is connected to the outer sleeve of the slide bar 81 between the pressure block 12 and the flange 3. Pressing the pressure block 12 downward can drive the locking member 8 downward, and the spring 10 provides an upward reset force. A fixed hook 2 11 is fixedly connected to the bottom of the pressure block 12, and correspondingly, a fixed hook 1 9 is fixedly connected to the flange 3. The fixed hook 2 11 and the fixed hook 1 9 form a locking mechanism; when the pressure block 12 moves downward to near the flange 3, the fixed hook 2 11 reaches the same height as the fixed hook 1 9. At this time, the rotating pressure block 12 can hook the fixed hook 2 11 and the fixed hook 1 9, so as to realize the positioning of the locking member 8, and then realize the positioning of the serrated slider 4, so that it can maintain a tight connection with the serrated 14 in the cylinder.

[0050] In some optional embodiments, a slotted groove 13 is provided above the pressing block 12 to facilitate the rotation of the pressing block 12 . It should be understood that a slotted screwdriver can be inserted into the slotted groove 13 to achieve rotational control of the pressing block 12 .

[0051] In some optional embodiments, such as Figures 5 to 8As shown, the connection portion 82 of the locking member 8 is used to connect with the bottom end of the slide bar 81, and the rotating locking portion 83 is used to change the control mode of the sawtooth slider 4 by rotation. Specifically, the rotating locking portion 83 has a stopper 833, a protrusion 832 and a recess 831. The stopper 833 is used to ensure the degree of rotation of the pressure block 12, and the protrusion 832 is used to squeeze the sawtooth slider 4 so that the sawtooth slider 4 is locked and connected with another building block connection structure below. A protrusion is provided at the position where the inner side surface of the pitch slider connects with the connection portion 82. When the protrusion is at the recess 831, the locking member 8 cannot squeeze the sawtooth slider 4. When the protrusion is at the protrusion 832, the sawtooth slider 4 overcomes the resilience of the reset mechanism (i.e., the elastic rubber ring 6 in this embodiment) and is pushed outward, and the stopper 833 is used to limit the rotation angle of the locking member 8. Since the outer side of the serrated slider 4 has outer slider serrations 16, it can be used to lock and connect with another building block connection structure below. The elastic rubber ring 6 provides power for the rebound of the serrated slider 4. The slotted groove 13 can be rotated by an electric wrench socket. The electric wrench socket has an inner cylinder that is compatible with the shape of the slotted groove 13 and is used to screw the slotted groove 13.

[0052] The working principle of the rotating locking part 83 is as follows: when the locking part 8 is facing the serrated slider 4 with a protrusion 832, the pressing block 12 can be pressed down to allow the locking part 8 to squeeze the serrated slider 4, and the building blocks can automatically connect tightly with the building blocks below. When the locking part 8 is facing the serrated slider 4 with a concave position, the building blocks can be stacked without being tightly connected. The angle of the pressing block 12 can be rotated to change three modes, which is convenient for quickly disassembling or installing building blocks with a certain strength.

[0053] like Figure 7 As shown, Figure 7 A structural schematic diagram of the rotating locking portion 83 is shown. In this structure, the rotating locking portion 83 is a hollow plate-like structure, has a certain resilience and saves materials.

[0054] like Figure 8 As shown, Figure 8 Another structural schematic diagram of the rotating locking portion 83 is shown. In this structure, the rotating locking portion 83 is a solid block structure, and the center of each group can accommodate the sliding rod 81 to be inserted so that the sliding rod 81 and the connecting portion 82 at the bottom can be fixed.

[0055] The first building block connection structure 100 of this embodiment can be used to connect building blocks 1 300. Fig. 9 As shown, the block 1 300 is provided with a plurality of block 1 cavities 301 in an array, and the number of the block 1 cavities 301 is reasonably set according to the shape and length and width of the block. Fig.10 As shown, the cavity 301 of the building block is a three-step hole, the top opening is the smallest, used to limit the flange 3 to pass through, and the bottom opening is the largest, used to accommodate the nut 200, the nut 200 passes through Fig.11 The electric wrench socket 700 shown is screwed in for installation. During installation, firstly, the first building block connection structure 100 is put into the bottom entrance of the building block cavity 301, and then the first building block connection structure 100 is fixed in the building block cavity 301 by the nut 200. At this time, the cylinder 1 is located above the building block 1 300, and the cylinder 2 5 is located in the building block cavity 301 of the building block 1 300. After the first building block connection structure 100 is installed on the building block 1 300, the building blocks can be quickly assembled. Just stack the building block 1 300 on top of another building block 1 300. At this time, the cylinder 2 5 in the upper building block 1 300 will enter the cylinder 1 of the lower building block 1 300 as a pressure column, and press down the pressure block 12 on the lower building block 1 300, so that the pressure block 12 moves downward, driving the locking member 8 to move downward, and the serrated slider 4 is pushed out to complete the locking connection with the serrated 14 in the cylinder of another building block 1 300. The fixed hook 2 11 below the pressing block 12 moves downward to the fixed hook 1 9 above the flange 3 , and the two are connected by snapping. When disassembly is required, the pressing block 12 is rotated to disengage the fixed hook 2 11 from the fixed hook 1 9 .

[0056] Embodiment 2:

[0057] Reference Figures 12 to 15 As shown, the second embodiment of the present invention provides another multifunctional locking building block connection structure, which is defined as a second building block connection structure 400 for the convenience of distinction and description. Figure 8 As shown, the second building block connection structure 400 is substantially the same as the first building block connection structure 100, with the only difference being:

[0058] In this embodiment, the outer circumference of the cylinder body 1 is not provided with an external thread 2, but the outer circumferential surface of the cylinder body 1 is provided with a cylinder outer serration 401; the outer diameter of the flange 3 in this embodiment is the same as the outer diameter of the cylinder body 1, or the flange 3 is not provided, the cylinder body 1 and the cylinder body 2 5 are directly connected, and a support plate for supporting the spring 10 is provided at the connection position between the two.

[0059] like Fig.14 As shown, the second building block connection structure 400 can be used in conjunction with the second building block 500. The structure of the second building block 500 is as shown in FIG. Fig.13 and Fig.14 The bottom of the building block 500 is provided with a building block cavity 501, and a hollow convex tube 502 is arranged on the top. The building block cavity 501 and the hollow convex tube 502 are connected, and the hollow convex tubes 502 are arranged in an array. The inner circumference of each hollow convex tube 502 is provided with a plurality of groups of building block inner serrations 503, and the building block inner serrations 503 are used to cooperate with the cylinder outer serrations 401 on the outer circumference of the cylinder body 1.

[0060] like Fig.14As shown, when in use, first put the second building block connection structure 400 into the upper port of the hollow convex tube 502. At this time, since the inclined direction of the building block inner serrations 503 is obliquely downward, the second building block connection structure 400 can be easily put into the hollow convex tube 502, and the building block inner serrations 503 and the cylinder outer serrations 401 outside the cylinder body 1 form a bite. A limiting flange 504 is provided inside the building block second cavity 501 to limit the insertion direction of the second building block connection structure 400. The limiting flange 504 forms a support limit from the bottom of the cylinder body 1 to limit the second building block connection structure 400 from escaping from the building block second cavity 501 below. When it is necessary to assemble the second building block 500, the second building block 500 is inserted from the bottom of another second building block 500. Specifically, the hollow convex tube 502 of the second building block 500 below is inserted into the second building block cavity 501 of the second building block 500 above. At this time, the upper and lower second building block connection structures 400 squeeze each other, and the cylinder 2 5 in the upper second building block connection structure 400 squeezes the pressing block 12 in the lower second building block connection structure 400, thereby completing the connection. The specific connection process is described in the above embodiment 1, which will not be repeated here. When it is necessary to disassemble, start disassembly from the top of the building block, and reset the sawtooth slider 4 by rotating the uppermost pressing block 12, and then disassemble the building blocks layer by layer.

[0061] Embodiment three:

[0062] like Fig.16 and Fig.17 As shown, the third embodiment of the present invention provides another building block connection structure. The third building block connection structure 600 of this embodiment is similar in structure to the first building block connection structure 100 described in the first embodiment. The only difference is that a plurality of elastic bevel teeth 20 are arranged on the inner circumference of the sawtooth slider 4 in the third building block connection structure 600. The elastic bevel teeth 20 are arranged obliquely downward and have an inclined extrusion surface that matches the locking member 8. When the locking member 8 moves downward, the rotating locking portion 83 squeezes the elastic bevel teeth 20, and the downward movement of the locking member 8 is changed into the radial movement of the sawtooth slider 4, thereby achieving the purpose of pushing the sawtooth slider 4 outward. In a specific embodiment, the elastic bevel teeth 20 are made of plastic material and have the characteristics of elasticity and fatigue resistance.

[0063] It should be understood that, in actual applications, the shapes and sizes of the building blocks can be set to a variety, and the number of a single building block connected to the first building block connection structure 100 or the second building block connection structure 400 (collectively referred to as building block connection structures) is also reasonably set according to the shape and size of the building block. For example, 2×3 building block connection structures can be set on a building block, and it can also be a variety of array forms such as 2×2, 1×4, etc., which are not specifically limited here.

[0064] It should also be understood that the first building block connection structure 100 or the second building block connection structure 400 can be directly fixed in the building block, or a detachable connection method as described in the first or second embodiment can be adopted. The detachable connection method can increase the playability and educational effect of the building block toy.

[0065] The details not described in detail in the present invention are all conventional technical means well known to those skilled in the art.

[0066] The above-mentioned embodiments 1 to 3 respectively disclose three types of building block connection structures. The two building block connection structures can be installed in building blocks for splicing building blocks. Generally speaking, the building block connection structure of the present invention can realize the following three working modes:

[0067] Mode 1: There is a fixed hook 2 11 under the pressing block 12, and the pressing block 12 is connected to the locking piece 8. When the fixed hook 2 11 under the pressing block 12 is facing the fixed hook 1 9, the pressing block 12 can be connected with the fixed hook 1 9 after being pressed down to a certain extent. The protrusion 832 of the locking piece 8 squeezes the serrated slider 4, so that the building block is automatically and tightly connected to the building block below, and the pressing block 12 needs to be rotated to be disassembled.

[0068] Mode 2, when the fixed hook 2 11 below the pressing block 12 is not directly opposite to the fixed hook 1 9, when the locking member 8 is directly opposite to the serrated slider 4 at the protrusion 832, the pressing block 12 can be pressed down to allow the locking member 8 to squeeze the serrated slider 4, and the building block is automatically and tightly connected to the building block below.

[0069] Mode 3: When the fixed hook 2 11 below the pressing block 12 is not directly opposite to the fixed hook 1 9, when the position of the locking member 8 directly opposite to the sawtooth slider 4 is recessed 831, the building blocks can be stacked without being tightly connected. The angle of the pressing block 12 can be rotated to change the three modes, which is convenient for quick disassembly or installation of building blocks with a certain strength.

[0070] The multifunctional locking building block connection structure of the present invention is mainly used for building block connection, which can be made into toys, can be used as creative materials for building block lovers, and is convenient for long-term preservation of their works. It can also be spliced ​​into common small objects such as flower pots, vases, pen holders, pencil cases, etc. in daily life. It should be noted that the connection structure can also be used in other fields that require assembly and connection. For example, in the field of construction, building bricks made of cement material can be used in construction. The building blocks in the present invention are made into building bricks for construction, which can be used as temporary buildings. After use, they can be easily dismantled and the bricks can be recycled. Reinforced cement can also be poured in the cavity inside the building blocks to increase the strength of the temporary building. The shape, size and material of the building bricks can be adjusted according to different uses to facilitate various uses.

[0071] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply 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 understood as a limitation on the present invention.

[0072] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A multifunctional locking building block connection structure, characterized in that: The invention comprises a cylinder body (1), a cylinder body (5) and a locking member (8): the inner wall of the cylinder body (1) is provided with a plurality of internal cylinder serrations (14); the cylinder body (5) is coaxially fixed to the bottom of the cylinder body (1), and its outer diameter is smaller than the inner diameter of the cylinder body (1); a plurality of sawtooth sliders (4) are radially slidable inside the cylinder body (5), the outer peripheral surface of the sawtooth sliders (4) is provided with slider outer serrations (16) matching the internal cylinder serrations (14); the peripheral surface of the cylinder body (5) is provided with slide-out channels (15) corresponding to the sawtooth sliders (4) one by one, and the slide-out channels (15) allow the slider outer serrations (16) to extend out; the locking member (8) comprises a plurality of sawtooth sliders (4) extending through the cylinder body (1) and the cylinder body (2). (5) an axial slide rod (81), the top end of the slide rod (81) is fixedly connected with a pressure block (12), and the slide rod (81) between the pressure block (12) and the bottom of the cylinder body (1) is covered with a spring (10); the slide rod (81) extends into the center of each sawtooth slider (4) and is provided with a plurality of rotating locking parts (83) that are slidably matched with the sawtooth slider (4), squeezing the locking part (8), and the rotating locking part (83) pushes the sawtooth slider (4) to slide radially outward along the cylinder body (5), so that the outer saw teeth (16) of the slider extend out of the sliding channel (15); the locking part (8) also includes a locking mechanism for axial positioning by rotation; a reset mechanism is provided between each of the sawtooth sliders (4).

2. The multifunctional locking building block connection structure according to claim 1, characterized in that: The locking member (8) also includes a connecting portion (82) that is rotatably matched with the sawtooth slider (4), and the connecting portion (82) includes blocking teeth (833), protrusions (832) and recesses (831) that are evenly arranged in the circumferential direction. By rotating the locking member (8), the protrusions (832) and recesses (831) can be switched to abut against the sawtooth slider (4) respectively, thereby achieving locking and unlocking. The blocking teeth (833) limit the rotation limit of the locking member (8) in the circumferential direction.

3. The multifunctional locking building block connection structure according to claim 1, characterized in that: The locking mechanism comprises a second fixed hook (11) fixedly connected to the bottom of the pressing block (12) and a first fixed hook (9) fixedly connected to the bottom of the cylinder body (1); when the pressing block (12) is pressed downward, the second fixed hook (11) is engaged with the first fixed hook (9); and when the pressing block (12) is rotated, the locking mechanism is unlocked.

4. The multifunctional locking building block connection structure according to claim 1, characterized in that: A flange (3) having an outer diameter greater than that of the cylinder one (1) is provided between the cylinder one (1) and the cylinder two (5), and is used to form a one-way limit from the axial direction when connected with a building block.

5. The multifunctional locking building block connection structure according to claim 4, characterized in that: The outer peripheral side of the cylinder body (1) close to the flange (3) is provided with an external thread (2) for threaded connection with a nut (200) when connected to a building block, thereby cooperating with the flange (3) to fix the cylinder body (1) on the building block.

6. The multifunctional locking building block connection structure according to claim 1, characterized in that: The outer peripheral surface of the cylinder body 1 (1) is provided with cylinder outer serrations (401) for clamping with a building block provided with building block inner serrations (503).

7. The multifunctional locking building block connection structure according to claim 1, characterized in that: The reset mechanism comprises a slider central axis (7) penetrating the center of the sawtooth slider (4), and an elastic rubber ring (6) sleeved on the outer ring of each slider central axis (7).

8. The multifunctional locking building block connection structure according to claim 7, characterized in that: At least one end of the central axis (7) of the slider is radially slidably connected to the second cylinder (5).

9. The multifunctional locking building block connection structure according to claim 1, characterized in that: The reset mechanism comprises a plurality of torsion springs (19) arranged in the second cylinder (5), one end of the torsion spring (19) abuts against the inner wall of the second cylinder (5), and the other end is connected to the sawtooth slider (4).

10. The multifunctional locking building block connection structure according to claim 1, characterized in that: The inner circumferential surface of the sawtooth slider (4) is fixedly connected with a plurality of elastic oblique teeth (20) inclined downward, and the elastic oblique teeth (20) cooperate with the locking member (8) to convert the downward movement of the locking member (8) into the radial movement of the sawtooth slider (4).

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