CN107661637B

CN107661637B - Spliced building block

Info

Publication number: CN107661637B
Application number: CN201710965561.9A
Authority: CN
Inventors: 骆运章
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-10-17
Filing date: 2017-10-17
Publication date: 2023-07-04
Anticipated expiration: 2037-10-17
Also published as: CN107661637A

Abstract

The invention relates to a spliced building block, which is a square body as a whole and is provided with a plurality of connecting surfaces, wherein one surface is a first connecting surface, the other surface is a second connecting surface, a bulge is arranged on the first connecting surface, a second groove is arranged on the second connecting surface, and the bulge and the second groove can be mutually spliced; the protruding sheet structure that is independent of each other surrounds the constitution, sheet structure's inboard is equipped with little dogtooth, be equipped with the through-hole on the first joint face, the through-hole is located bellied center pin position, be equipped with the mounting in the through-hole, the mounting is the shaft-like structure, the one end of mounting is flexible end, flexible end can be in reciprocating motion in the through-hole, the other end of mounting is the link, the link with elastic component connects, elastic component is located the inside of piecing together the plug-in building blocks. The invention can realize the mutual conversion of the building block connection between the fixed connection state and the non-fixed connection state.

Description

Spliced building block

Technical Field

The invention relates to the field of toys, in particular to a spliced building block.

Background

At present, various spliced building block toys exist on the market, such as Legao building blocks and the like, and are popular because the type of building blocks is beneficial to the cultivation of the practical ability and the space imagination ability of children.

As shown in fig. 1-2, the building block toy is a building block toy which is more common in the market at present, and is characterized in that the whole building block toy is square and is divided into a front face, a side face and a bottom face, a plurality of protrusions are arranged on the front face, grooves with the same number and positions as those of the protrusions on the front face are arranged on the bottom face, and the protrusions and the grooves are matched.

In practice, it is found that the building blocks in the prior art often have unstable connection after the building blocks are spliced and inserted due to the lack of a connection structure capable of freely converting the fixed connection state and the non-fixed connection state, so that the problem of falling of the building blocks is solved.

Disclosure of Invention

The invention provides a spliced building block which can realize the mutual conversion between a fixed connection state and a non-fixed connection state of building block connection.

In order to achieve the above purpose, the invention provides a spliced building block, which is a square body as a whole and is provided with a plurality of connecting surfaces, wherein one surface is a first connecting surface, the other surface is a second connecting surface, a bulge is arranged on the first connecting surface, a second groove is arranged on the second connecting surface, and the bulge and the second groove can be mutually spliced; the bulge is formed by encircling a plurality of mutually independent sheet structures, the middle part of sheet structure is equipped with the through-hole, be equipped with the mounting in the through-hole, the mounting is the shaft-like structure, the one end of mounting is flexible end, flexible end can be in reciprocating motion in the through-hole, the other end of mounting is the link, the link with elastic component is connected, elastic component is located the inside of piecing together the plug-in building blocks.

As a preferred scheme, the elastic component comprises a first connecting piece, a spring, a middle piece, a second connecting piece, a pressing piece and a pressing button, wherein the first connecting piece is fixedly connected with the first connecting surface, a first cavity is formed in the first connecting piece, a second cavity is formed in the second connecting piece, the first cavity is in butt joint with the second cavity to form a containing cavity, and the spring, the fixing piece and the middle piece are sequentially matched and installed in the containing cavity; the one end that keeps away from of second connecting piece the second cavity is equipped with the connecting hole, press the piece to connect in the connecting hole, press the button install in the tip of pressing the piece.

As a preferable scheme, the outer wall of the connecting end is provided with a connecting bulge, the spring is sleeved on the telescopic end, one end of the spring props against the connecting bulge, and the spring, the fixing piece and the middle piece are sequentially and adjacently arranged in the accommodating cavity.

As a preferable scheme, one end of the middle piece is provided with a rod-shaped bulge, the other end of the middle piece is provided with a base, the side wall of the middle piece is provided with an inclined plane convex tooth, one end of the pressing piece is provided with a rod-shaped through hole corresponding to the rod-shaped bulge, the end provided with one end of the rod-shaped through hole is provided with a ratchet, the rod-shaped bulge of the middle piece is inserted into the rod-shaped through hole of the pressing piece, and the ratchet is contacted with the inclined plane convex tooth.

As a preferable scheme, the side wall of the connecting hole is provided with a strip-shaped groove, the side wall of the pressing piece is fixedly provided with a sliding block corresponding to the strip-shaped groove, the sliding block is embedded into the strip-shaped groove, and the sliding block can reciprocate in the strip-shaped groove.

As the preferred scheme, the cavity inner wall of second cavity is equipped with spacing arch and spacing groove, spacing arch with the spacing groove is slope column structure, spacing arch with spacing groove adjacent setting just is located the different degree of depth positions of cavity inner wall, the outer edge of inclined plane dogtooth with spacing arch or spacing groove contact, the middleware can be in the second cavity is around the central axis rotation of middleware.

As a preferable scheme, a supporting plate is arranged in at least one central plane of the spliced building block, and the side surface of the supporting plate is contacted with the side wall of the inner side of the spliced building block.

As a preferable scheme, the inner side of the sheet structure is provided with small convex teeth, and the outer side of the sheet structure is provided with a buckle.

Preferably, the first connecting surface is provided with a first groove, and the protrusion and the first groove can be mutually inserted.

Preferably, the first groove comprises a large groove and a small groove, and the protrusion and the large groove can be mutually inserted.

According to the spliced building block provided by the technical scheme, the first connecting surface is provided with the protrusions, the protrusions are formed by encircling a plurality of mutually independent sheet structures, the sheet structures are made of plastics with certain elasticity, the first connecting surface is provided with the through holes, the through holes are located at the positions of the central shafts of the protrusions, the fixing pieces are arranged in the through holes, the fixing pieces are of rod-shaped structures, one ends of the fixing pieces are telescopic ends, and the telescopic ends can reciprocate in the through holes. In the using process of the building block, before the protrusion is inserted into the groove in matched connection with the protrusion, the telescopic end of the fixing piece is moved to the position below the first connecting surface; in the process of inserting the bulge into the groove in matched connection with the bulge, as the flaky structure has certain elasticity, the flaky structure deforms towards the inner side of the bulge, so that a user can conveniently insert the bulge into the groove; after protruding inserting the recess of being connected with it cooperation, will the flexible end of mounting moves to the top of first joint face, flexible end inserts bellied inside for the lateral wall of flexible end with sheet structure contacts, because flexible end top is in bellied inside makes sheet structure can't warp to bellied inboard, thereby has realized being fixed in the inside effect of recess with the arch, effectually prevented the risk that the building block drops after the concatenation. After the building blocks are used, a user only needs to move the telescopic ends of the fixing pieces to the position below the first connecting surface, so that the sheet-shaped structure can recover the deformation capacity towards the inner side of the bulge, the spliced building blocks can be detached very conveniently, and in the prior art, when the user inserts and detaches the building blocks, if only a small force is needed, the stability of the connection of the building blocks is relatively poor; if the connection of the building blocks is required to be strong in stability, the user can also need to use great strength to finish the process, but the strength of the children is limited, the building blocks are often injured easily or damaged in the inserting or dismantling process, the playing mood of the user is influenced, and the whole service life of the building blocks can be influenced. The spliced building block provided by the invention can be spliced or dismantled quite conveniently by a user, and can be prevented from falling off after being spliced.

Drawings

FIG. 1 is a schematic diagram of a building block according to the prior art;

FIG. 2 is a schematic diagram of a building block (II) according to the prior art;

FIG. 3 is a schematic structural diagram of embodiment 1 of the present invention;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a diagram showing the relationship between the positions of the elastic components on the building blocks according to embodiment 1 of the present invention;

FIG. 6 is an exploded view of a block according to embodiment 1 of the present invention;

FIG. 7 is a diagram showing the relationship between the first connector and the building block according to embodiment 1 of the present invention;

FIG. 8 is a schematic diagram showing the structure of a spring according to embodiment 1 of the present invention;

FIG. 9 is a schematic structural view of a fixing member according to embodiment 1 of the present invention;

FIG. 10 is a schematic structural diagram of an intermediate member in embodiment 1 of the present invention;

FIG. 11 is a schematic view of a structure of one end of a second cavity of a second connector according to embodiment 1 of the present invention;

FIG. 12 is a schematic view showing the structure of one end of the connecting hole of the second connecting member according to embodiment 1 of the present invention;

FIG. 13 is a schematic view showing the structure of a pressing member according to embodiment 1 of the present invention;

fig. 14 is a schematic view showing the structure of a push button in embodiment 1 of the present invention;

FIG. 15 is a schematic diagram (I) of a splicing manner of building blocks according to embodiment 1 of the present invention;

FIG. 16 is a schematic diagram (II) of a splicing manner of building blocks according to embodiment 1 of the present invention;

fig. 17 is a schematic view showing the arrangement of the support plates in embodiment 2 of the present invention;

fig. 18 is a schematic structural view showing the arrangement of the support plates in embodiment 3 of the present invention;

FIG. 19 is a schematic view showing the structure of embodiment 4 of the present invention;

FIG. 20 is a schematic view showing the structure of embodiment 5 of the present invention;

fig. 21 is a schematic structural view of embodiment 6 of the present invention.

Wherein: 1. a first connection surface; 2. a second connection surface; 3. a sheet-like structure; 4. a buckle; 5. small convex teeth; 6. an elastic component; 8. a fixing member; 9. a support plate;

61. a first connector; 62. a spring; 63. a middleware; 64. a second connector; 65. a pressing member; 66. pressing the button;

71. a large groove; 72. a small groove;

81. a telescoping end; 82. a connection end;

611. a first cavity; 631. a base; 632. bevel convex teeth; 633. a rod-shaped protrusion; 641. a limit protrusion; 642. a limit groove; 644. a connection hole; 645. a strip-shaped groove; 651. a ratchet; 652. a slide block; 653. a rod-shaped through hole.

Detailed Description

The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.

Example 1

As shown in fig. 1-14, the block provided by the invention is a square block, and is provided with a plurality of connecting surfaces, wherein one surface is a first connecting surface 1, the other surface is a second connecting surface 2, a protrusion is arranged on the first connecting surface 1, a second groove is arranged on the second connecting surface 2, and the protrusion and the second groove can be mutually inserted; the protrusion is formed by encircling a plurality of mutually independent sheet structures 3, be equipped with the through-hole on the first joint face 1, the through-hole is located bellied center pin position, be equipped with mounting 8 in the through-hole, mounting 8 is the shaft-like structure, the one end of mounting 8 is flexible end 81, flexible end 81 can be in reciprocating motion in the through-hole, the other end of mounting 8 is link 82, link 82 with elastic component 6 is connected, elastic component 6 is located the inside of piecing together the plug-in building blocks. Wherein the sheet structure 3 is made of plastic with certain elasticity, and the telescopic end 81 of the fixing piece 8 is moved to the lower part of the first connecting surface 1 before the protrusion is inserted into the groove in matched connection with the protrusion during the use process of the building block; in the process of inserting the bulge into the groove in matched connection with the bulge, as the sheet structure 3 has certain elasticity, the sheet structure 3 deforms towards the inner side of the bulge, so that a user can conveniently insert the bulge into the groove; after the protrusion is inserted into the groove in fit connection with the protrusion, the telescopic end 81 of the fixing piece 8 moves to the upper portion of the first connecting surface 1, and the telescopic end 81 is inserted into the protrusion, so that the side wall of the telescopic end 81 and the sheet structure 3 are propped against the protrusion, and the sheet structure 3 cannot deform towards the inner side of the protrusion due to the fact that the telescopic end 81 is propped against the protrusion, thereby realizing the effect of fixing the protrusion in the groove, and effectively preventing the risk that the building blocks fall off after being spliced. After the building blocks are used, a user only needs to move the telescopic ends 81 of the fixing pieces 8 to the position below the first connecting surface 1, so that the sheet-shaped structure 3 can restore the capability of deforming towards the inner side of the bulge, the spliced building blocks can be detached very conveniently, the building blocks in the prior art are used, no matter the user needs to use larger force in the plugging or detaching process, the force of the child is limited, the child is often easy to injure or damage the building blocks in the plugging or detaching process, the playing mood of the user is influenced, and the whole service life of the building blocks can be influenced.

As a preferred technical scheme, as shown in fig. 3, the inner side of the sheet structure 3 is provided with the small convex teeth 5, when the telescopic end 81 is inserted into the raised inner part, the side wall of the telescopic end 81 contacts with the small convex teeth 5 of the sheet structure 3, so that the telescopic end 81 can be more conveniently propped against the raised inner part, the fixing effect is better, and the risk that the building blocks fall off after being inserted is further prevented. Further, as shown in fig. 3, in this embodiment, the side wall of the sheet structure 3 is provided with the buckle 4, after the building blocks are inserted, because the side wall of the sheet structure 3 is provided with the buckle 4, the two connected building blocks are clamped by the buckle 4, so that the falling off of the building blocks due to unstable connection after the building blocks are connected is further prevented.

Further, as shown in fig. 5-14, the structure of the elastic component 6 is specifically designed, the elastic component 6 includes a first connecting piece 61, a spring 62, a middle piece 63, a second connecting piece 64, a pressing piece 65 and a pressing button 66, the first connecting piece 61 is fixedly connected with the first connecting surface 11, a first cavity 611 is provided in the first connecting piece 61, a second cavity is provided in the second connecting piece 64, the first cavity 611 and the second cavity are in butt joint to form a containing cavity, and the spring 62, the fixing piece 8 and the middle piece 63 are sequentially mounted in the containing cavity in a matching manner; the end of the second connecting piece 64 far away from the second cavity is provided with a connecting hole 644, the pressing piece 65 is connected in the connecting hole 644, and the pressing button 66 is mounted at the end of the pressing piece 65. As shown in fig. 9, the outer wall of the connecting end 82 is provided with a connecting protrusion, the spring 62 is sleeved on the telescopic end 81, one end of the spring 62 abuts against the connecting protrusion, and the spring 62, the fixing member 8 and the intermediate member 63 are sequentially and adjacently arranged in the accommodating cavity. As shown in fig. 10, one end of the intermediate member 63 is provided with a rod-shaped protrusion 633, the other end of the intermediate member 63 is provided with a base 631, the side wall of the intermediate member 63 is provided with an inclined convex tooth 632, as shown in fig. 13, one end of the pressing member 65 is provided with a rod-shaped through hole 653 corresponding to the rod-shaped protrusion 633, the end provided with one end of the rod-shaped through hole 653 is provided with a ratchet 651, the rod-shaped protrusion 633 of the intermediate member 63 is inserted into the rod-shaped through hole 653 of the pressing member 65, and the ratchet 651 contacts with the inclined convex tooth 632. As shown in fig. 12, the side wall of the connecting hole 644 is provided with a bar-shaped groove 645, the side wall of the pressing member 65 is fixedly provided with a slide block 652 corresponding to the bar-shaped groove 645, the slide block 652 is embedded in the bar-shaped groove 645, and the slide block 652 can reciprocate in the bar-shaped groove 645. As shown in fig. 11, the inner wall of the second cavity is provided with a limiting protrusion 641 and a limiting groove 642, the limiting protrusion 641 and the limiting groove 642 are in a slope structure, the limiting protrusion 641 and the limiting groove 642 are adjacently arranged and positioned at different depth positions of the inner wall of the cavity, the outer edge of the inclined convex tooth 632 is in contact with the limiting protrusion 641 or the limiting groove 642, and the intermediate member 63 can rotate around the central axis of the intermediate member 63 in the second cavity.

The specific movement process of the elastic assembly 6 is that the initial position of the inclined convex tooth 632 of the middle member 63 is located at the position of the limit groove 642, the initial position of the fixing member 8 is located below the first connecting surface 11, the operator presses the pressing button 66, the pressing member 65 pushes the middle member 63 accordingly, so that the inclined convex tooth 632 of the middle member 63 moves to the position with the same height as the limit protrusion 641, meanwhile, the ratchet 651 pushes the inclined convex tooth 632, so that the middle member 63 rotates by a position angle, through the above process, the inclined convex tooth 632 of the middle member 63 just moves to the upper surface of the limit protrusion 641 and pushes against the limit protrusion, the middle member 63 pushes the fixing member 8 simultaneously in the process for a certain distance, at this time, the telescopic end 81 of the fixing member 8 moves to the upper side of the first connecting surface 11, that is, the telescopic end 81 is inserted into the inside of the protrusion, the side wall of the telescopic end 81 contacts with the small convex tooth 5 of the sheet structure 3, and the telescopic end 81 pushes against the inside the protrusion to prevent the inside of the protrusion 641 from falling off, thereby preventing the sheet structure from being fixed inside the protrusion 641. When the operator presses the pressing button 66 again, the spring 62 is compressed to make the intermediate member 63 get an elastic force, the ratchet 651 pushes the inclined surface convex tooth 632 during the pressing process, so that the intermediate member 63 rotates by a position angle, the inclined surface convex tooth 632 of the intermediate member 63 rotates to the upper part of the limit groove 642, when the operator releases his hand, the intermediate member 63 is rebounded, so that the inclined surface convex tooth 632 of the intermediate member 63 moves to the upper surface of the limit groove 642 and pushes against the limit groove 642, and the fixing member 8 rebounds to the initial position, so that the sheet structure 3 recovers the ability of deforming to the inner side of the protrusion, thereby disassembling the spliced building blocks very conveniently.

As shown in fig. 14, the pressing button 66 is provided with a connecting cavity inside, a cross groove is formed in the inner wall of the connecting cavity, the end portion of the pressing piece 65 is inserted into the connecting cavity and connected with the pressing button 66, and the fastening performance of the connection between the pressing piece 65 and the pressing button 66 is ensured by the cross groove formed in the inner wall of the connecting cavity.

As shown in fig. 6, in this embodiment, preferably, the support plates 9 are disposed in 2 central planes of the spliced building blocks, the 2 support plates 9 divide the inner sides of the spliced building blocks into 4 mutually independent spaces, and the support effect on the spliced building blocks can be realized by disposing the support plates 9 in the spliced building blocks, so that the overall stability of the building blocks is ensured, and the service life of the building blocks can be prolonged.

In this embodiment, as shown in fig. 3, 2 first grooves and 2 protrusions are provided on the first connection surface 1, where the first grooves and the protrusions may be inserted into each other, the 2 first grooves are distributed on one diagonal line of the first connection surface 1, and the 2 protrusions are provided on the other diagonal line of the first connection surface 1; in this embodiment, piece together and insert formula building block and be square structure, piece together and insert formula building block's other 5 faces and be second connection face 2 be equipped with 4 second recesses on the second connection face 2, the second recess with protruding can peg graft each other, 4 second recesses are two liang and are the diagonal distribution. As shown in fig. 3, the grooves include a large groove 71 and a small groove 72, the protrusions and the large groove 71 can be mutually inserted, the small groove 72 can be used for connecting other small building blocks, so that more modeling playing methods are extended, and the protrusions, the large groove 71 and the small groove 72 are all square structures.

Fig. 15 is a schematic diagram (i) of a splicing manner of splicing blocks in this embodiment, in which other blocks are mainly spliced to the small groove 72 in this embodiment. Fig. 16 is a schematic diagram (two) of a splicing manner of splicing blocks according to the present embodiment, in which 2 splicing blocks provided by the present invention are mainly spliced with each other, and a first connection surface 1 of one splicing block is used to splice with a second connection surface 2 of another splicing block.

Example 2

As shown in fig. 17, which is a schematic structural diagram of the arrangement manner of the support plates 9 in this embodiment, the difference between this embodiment and embodiment 1 is that the support plates 9 are only disposed in 1 central plane of the spliced building block, the support plates 9 partition the inner side of the spliced building block into 2 mutually independent spaces, and the support effect on the spliced building block can be realized by disposing the support plates 9 in the spliced building block, so that the overall stability of the building block is ensured, and the service life of the building block can be prolonged.

Other structures of the spliced building block in this embodiment are the same as those in embodiment 1, and will not be described here again.

Example 3

As shown in fig. 18, which is a schematic structural diagram of the arrangement manner of the support plates 9 in this embodiment, the difference between this embodiment and embodiment 1 is that the support plates 9 are disposed in 3 central planes of the spliced building blocks, the support plates 9 divide the inner sides of the spliced building blocks into 8 mutually independent spaces, wherein the support plates 9 on the central planes perpendicular to the elastic assemblies 6 are provided with holes at the positions of the elastic assemblies 6 for the elastic assemblies 6 to pass through, and the support effect on the spliced building blocks can be achieved by disposing the support plates 9 in the spliced building blocks, so that the overall stability of the building blocks is ensured, and meanwhile, the service life of the building blocks can be prolonged.

Example 4

As shown in fig. 19, a schematic structural diagram of a building block according to the present embodiment is shown, and the difference between the present embodiment and embodiment 1 is that: the spliced building blocks are of cuboid structures, 1 bulge, a fixing piece 8 matched with the bulges and used with the bulges and the elastic component 6 are arranged on the first connecting surface 1, no first groove is arranged, only 1 second groove is arranged on the second connecting surface 2 opposite to the first connecting

surface

1, and 2 second grooves are arranged on the other second connecting surfaces 2; further, the present embodiment is not provided with the support plate 9.

Example 5

As shown in fig. 20, a schematic structural diagram of a building block according to the present embodiment is shown, and the difference between the present embodiment and embodiment 1 is that: the splicing and inserting type building block is of a cuboid structure, 1 bulge and one fixing piece 8 and one elastic component 6 which are matched with the bulge are arranged on the first connecting

surface

1, 1 first groove is further formed in the first connecting surface 1, the first groove and the bulge can be mutually spliced, 2 second grooves are formed in the second connecting surface 2 opposite to the first connecting

surface

1, 4 second grooves are formed in the second connecting surface 2 adjacent to the first connecting surface 1, and the two second grooves are distributed in a diagonal mode. 2 second grooves are arranged on the rest of the second connecting surfaces 2; the second groove and the protrusion can be mutually inserted. Further, the present embodiment is not provided with the support plate 9.

Example 6

As shown in fig. 21, a schematic structural diagram of a building block according to the present embodiment is shown, and the difference between the present embodiment and embodiment 1 is that: the protrusions, the large grooves 71 and the small grooves 72 are all circular structures.

The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.

Claims

1. The utility model provides a piece together formula building blocks, wholly is square, has a plurality of connection faces, and one of them face is first connection face, and the remaining face is the second connection face, its characterized in that is equipped with the arch on the first connection face, be equipped with the second recess on the second connection face, protruding and the second recess can peg graft each other;

the bulge is formed by encircling a plurality of mutually independent sheet structures, a through hole is formed in the middle of the sheet structure, a fixing piece is arranged in the through hole, the fixing piece is of a rod-shaped structure, one end of the fixing piece is a telescopic end which can reciprocate in the through hole, the other end of the fixing piece is a connecting end, the connecting end is connected with an elastic component, and the elastic component is positioned in the spliced building block;

the sheet structure is made of elastic plastic;

the elastic component comprises a first connecting piece, a spring, a middle piece, a second connecting piece, a pressing piece and a pressing button, wherein the first connecting piece is fixedly connected with the first connecting surface, a first cavity is formed in the first connecting piece, a second cavity is formed in the second connecting piece, the first cavity is in butt joint with the second cavity to form a containing cavity, and the spring, the fixing piece and the middle piece are sequentially matched and installed in the containing cavity; one end of the second connecting piece, which is far away from the second cavity, is provided with a connecting hole, the pressing piece is connected in the connecting hole, and the pressing button is arranged at the end part of the pressing piece;

the outer wall of the connecting end is provided with a connecting bulge, the spring is sleeved on the telescopic end, one end of the spring props against the connecting bulge, and the spring, the fixing piece and the middle piece are sequentially and adjacently arranged in the accommodating cavity;

in the use process of the building block, before the protrusion is inserted into the groove in matched connection with the protrusion, the telescopic end of the fixing piece is moved to the position below the first connecting surface, and in the process of the protrusion being inserted into the groove in matched connection with the protrusion, as the sheet-shaped structure has certain elasticity, the sheet-shaped structure deforms towards the inner side of the protrusion, so that a user can conveniently insert the protrusion into the groove, after the protrusion is inserted into the groove in matched connection with the protrusion, the telescopic end of the fixing piece is moved to the position above the first connecting surface, and the telescopic end is inserted into the protrusion, so that the side wall of the telescopic end is in contact with the sheet-shaped structure.

2. The jigsaw building block according to claim 1, wherein one end of the intermediate member is provided with a rod-shaped protrusion, the other end of the intermediate member is provided with a base, the side wall of the intermediate member is provided with an inclined convex tooth, one end of the pressing member is provided with a rod-shaped through hole corresponding to the rod-shaped protrusion, the end provided with one end of the rod-shaped through hole is provided with a ratchet, the rod-shaped protrusion of the intermediate member is inserted into the rod-shaped through hole of the pressing member, and the ratchet is in contact with the inclined convex tooth.

3. The spliced building block according to claim 1, wherein a strip-shaped groove is formed in the side wall of the connecting hole, a sliding block corresponding to the strip-shaped groove is fixedly arranged on the side wall of the pressing piece, the sliding block is embedded into the strip-shaped groove, and the sliding block can reciprocate in the strip-shaped groove.

4. The splicing and inserting building block according to claim 2, wherein the inner wall of the cavity of the second cavity is provided with a limiting protrusion and a limiting groove, the limiting protrusion and the limiting groove are of slope-shaped structures, the limiting protrusion is adjacent to the limiting groove and located at different depth positions of the inner wall of the cavity, the outer edge of the inclined convex tooth is in contact with the limiting protrusion or the limiting groove, and the middle piece can rotate around the central axis of the middle piece in the second cavity.

5. The building block according to claim 1, wherein a support plate is provided in at least one central plane of the building block, and a side surface of the support plate contacts with a side wall of an inner side of the building block.

6. The building block according to claim 1, wherein the inner side of the sheet structure is provided with small convex teeth, and the outer side of the sheet structure is provided with a buckle.

7. The building block according to claim 1, wherein the first connecting surface is provided with a first groove, and the protrusion and the first groove can be mutually inserted.

8. The building block of claim 7, wherein the first groove comprises a large groove and a small groove, and the protrusion and the large groove are capable of being inserted into each other.