Connecting mechanism and swinging structure of paper model and paper model

Abstract

The utility model discloses a connecting mechanism of a paper model, a swing structure and the paper model, belongs to the field of paper models, solves the problem that the connection between connecting plates is not tight enough, and adopts the technical scheme that the connecting mechanism of the paper model comprises a first connecting plate and a second connecting plate which are mutually inserted, the first connecting plate comprises a main body and a plug connector, the second connecting plate is provided with a jack matched with the plug connector, the plug connector comprises a connecting plug and a connecting part used for connecting the connecting plug and the main body, the connecting plug comprises a connecting end connected with the connecting part, and the width of the connecting end is larger than that of the jack. A positioning groove matched with the inner wall of the jack is formed among the connecting end, the connecting part and the main body, and the plug connector is in plug-in fit with the jack so that the inner wall of the jack can be positioned in the positioning groove. The connecting structure is mainly used for enabling the first connecting plate and the second connecting plate to be connected more tightly.

Description

Technical Field

[0001] The utility model shows a connecting mechanism, a swinging structure and a paper model of a paper model, and belongs to the technical field of paper models. Background Art

[0002] Paper models, also commonly known as card models, are three-dimensional works of art made of thick paper or card materials. They are made by splicing multiple pre-cut paper parts to create a variety of structural shapes. They are not only a good choice for home decoration, but also a popular project for children's education and entertainment. In particular, three-dimensional paper models are deeply loved by parents and children for their easy operation, safety and educational significance.

[0003] Traditionally, paper model components rely on glue or are designed as one-piece parts to achieve connection, but this may affect the smoothness and feel of the assembly process. In recent years, some advanced paper model designs have introduced innovative paper mortise and tenon technology, such as Figure 1 , using a special flat spindle-shaped plug 11 to strengthen the connection between components. This type of plug 11 has a unique design, with a wide middle and tapered ends, and can be cleverly inserted into the pre-cut socket in the first component 13, and the other end is connected to the second component 12. The widest part of the plug 11 is slightly wider than the socket size. Thanks to its wedge-shaped structure, it can smoothly pass through the narrow socket, ensuring a stable connection between the first component 13 and the second component 12.

[0004] Although the flat spindle-shaped insert 11 improves the stability of the connection and the fineness of the model, its design also has limitations. Due to the gradual transition area between the middle and the tip, gaps are easily formed at the connection, affecting the tightness and aesthetics of the overall structure. In addition, the edge of the socket only bears pressure within a small range that matches the width of the insert (such as Figure 1 The part where the middle insert 11 contacts the first component 13 is easily worn out due to long-term stress, thereby affecting the durability of the model. Utility Model Content

[0005] The utility model aims to solve the problem that the connection between the connecting plates is not tight enough, and for this purpose provides a connecting mechanism, a swinging structure and a paper model of a paper model, wherein the connecting mechanism can make the connection between the first connecting plate and the second connecting plate tighter.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A connection mechanism for a paper model comprises a first connection plate and a second connection plate which are plugged into each other, the first connection plate comprising a main body and a plug connector, the second connection plate being provided with a socket matched with the plug connector, the plug connector comprising a plug connector and a connecting portion for connecting the plug connector and the main body, the plug connector comprising a connection end connected to the connection portion, the width of the connection end being greater than the width of the socket, a positioning groove matching the inner wall of the socket being formed between the connection end, the connection portion and the main body, the plug connector being plugged into and matched with the socket so that the inner wall of the socket is positioned in the positioning groove.

[0008] The beneficial effects of adopting the utility model are:

[0009] The plug connector in the utility model comprises a plug connector and a connecting part, the plug connector has a connecting end connected to the connecting part, a positioning groove matching the inner wall of the socket is formed between the connecting end, the connecting part and the main body, after the plug connector and the socket are plugged in, the plug connector passes through the socket, so that the connecting end and the main body are respectively located on both sides of the second connecting plate, because the width of the connecting end is greater than the width of the socket, the connecting end and the main body respectively form limiting surfaces on both sides of the second connecting plate, and then the second connecting plate is positioned between the connecting end and the main body, that is, the inner wall of the socket is embedded in the positioning groove; secondly, the positioning groove matches the inner wall of the socket, That is, the side wall of the connecting part matches the inner wall of the socket, and a contact panel can be added between the connecting part and the inner wall of the socket, so that the contact between the connecting part and the socket is more uniform and precise, and the shaking amplitude after the first connecting plate and the second connecting plate are plugged in can be effectively reduced, so that the plugging of the first connecting plate and the second connecting plate is more stable and reliable; in addition, the utility model forms a limit on the second connecting plate by the connecting end, which can increase the contact area between the connecting end and the second connecting plate, and can effectively disperse the stress on the connecting end, reduce the possibility of deformation of the plug connector due to long-term stress, and help to extend the service life of the plug connector.

[0010] Preferably, the connecting portion is in the shape of an elongated strip, and the two ends of the connecting portion are respectively perpendicular to the connecting end and the main body. By adopting the above-mentioned technical solution, the connecting portion is perpendicular to the connecting end and the main body, so that the positioning groove is in a U-shaped structure as a whole, which is more matched with the structure at the inner wall of the jack. After the plug-in connector is plugged into the jack, the positioning groove and the second connecting plate have a larger contact area, thereby improving the positioning ability of the positioning groove on the second connecting plate, reducing the shaking amplitude of the second connecting plate, and improving the plug-in stability of the first connecting plate and the second connecting plate. At the same time, it can also disperse the stress on the plug-in connector head, reduce the possibility of deformation of the plug connector, and significantly extend the service life of the plug connector.

[0011] Preferably, the plug connector further comprises a plug end away from the connection portion, the width of the plug end being smaller than the width of the jack. The above technical solution can make the plug end pass through the jack smoothly, making the plug connector and the jack plugged in more smoothly and reducing the possibility of the plug connector and the jack getting stuck.

[0012] Preferably, a guide surface for guiding the plug connector to pass through the socket is provided between the plug end and the connection end. With the above technical solution, the guide surface can guide the plug connector to pass through the socket to achieve plugging, making the plugging of the vehicle connector and the socket smoother and more labor-saving. At the same time, the guide surface can also reduce the resistance encountered by the plug connector during the plugging process, reducing the possibility of damage to the plug connector.

[0013] Preferably, the guide surface is a curved surface.

[0014] Preferably, the guide surface is an inclined surface, and the guide surface forms an angle P with the length direction of the connection part, and 5°≤P≤15°. The above technical solution can make it easier for the plug connector to pass through the jack. At the same time, while ensuring that the width of the connection end remains unchanged, the above angle design can increase the width of the plug end, making the plug connector stronger and improving the deformation resistance of the plug connector; secondly, the above angle design can increase the effective guiding length between the guide surface and the inner wall of the jack, making the plugging of the plug connector and the jack easier.

[0015] Preferably, the guide surface includes an arc surface and an inclined surface, one end of the inclined surface extends to the connecting end, and the other end smoothly transitions to the arc surface, and the end of the arc surface away from the inclined surface is connected to the plug-in end.

[0016] Preferably, the width of the connection end is D, the width of the plug hole is d, and 0.2mm≤Dd≤5mm. The above technical solution is adopted to make the connection end have enough length to limit the second connection plate, reduce the possibility of the second connection plate escaping from the positioning groove, and also make the connection end pass through the plug hole smoothly, reduce the possibility of the connection end and the plug hole being stuck. Those skilled in the art can optimize the size of Dd according to the flexibility of the paperboard. For example, for kraft paperboard, it is preferably 0.2mm to 1mm.

[0017] Preferably, the plug connector and the main body are an integrated structure. By adopting the above technical solution, the connection structure between the plug connector and the main body can be omitted, the connection stability and strength between the plug connector and the main body can be increased, the overall structure of the first connecting plate can be simpler and more reliable, and the manufacturing cost of the plug connector and the main body can also be reduced.

[0018] The utility model also shows a swinging structure, including a plurality of mutually hinged chain segments, each chain segment including a main body plate, two adjacent main body plates being hinged by a bridging plate, a connecting mechanism as described in any one of the above items being provided between the main body plate and the bridging plate, wherein two plug-in components are provided on both sides of the main body plate, the bridging plate is provided with a first bridging hole and a second bridging hole, the first bridging hole and the second bridging hole are both provided with arc-shaped edges, the plug-in component at the front end of the main body plate is plugged into the second bridging hole of the front bridging plate to connect the front chain segment, and the plug-in component at the rear end of the main body plate is plugged into the first bridging hole of the rear bridging plate to connect the rear chain segment.

[0019] Preferably, the chain segment further comprises a snap-in plate, which is provided with two snap-in holes cooperating with the plug-in component, the width of the snap-in holes is smaller than the width of the connecting end, and the plug-in component is plugged into the snap-in holes to position the snap-in plate between the connecting end and the bridging piece.

[0020] The utility model also shows a paper model, comprising a plurality of connecting blocks spliced ​​with each other, and a connecting mechanism as described in any one of the above items is arranged between two connected connecting blocks.

[0021] Other features and advantages of the present invention will be disclosed in detail in the following specific implementations and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described below in conjunction with the accompanying drawings:

[0023] Figure 1 It is a cross-sectional view of a connecting mechanism in the prior art;

[0024] Figure 2 This is a schematic diagram of the structure of the connecting mechanism in the first embodiment of the utility model;

[0025] Figure 3 It is a cross-sectional view of the connecting mechanism in the first embodiment of the utility model;

[0026] Figure 4 This is a front view of the first connecting plate in the first embodiment of the utility model;

[0027] Figure 5 for Figure 4 A partial enlarged view of part A;

[0028] Figure 6 This is a schematic diagram of the structure of the second embodiment of the present utility model;

[0029] Figure 7 This is a front view of the main body plate in the second embodiment of the utility model;

[0030] Figure 8 This is a front view of the bridge plate in the second embodiment of the utility model;

[0031] Fig. 9 This is a front view of the clamping plate of the second embodiment of the utility model;

[0032] Fig.10 This is a schematic diagram of the structure of the third embodiment of the present utility model;

[0033] Fig.11 for Fig.10 A partial enlarged view of part B.

[0034] Figure numerals: 11 plug, 12 second component, 13 first component, 2 first connecting plate, 21 main body, 3 connector, 31 connecting part, 32 plug connector, 321 connecting end, 322 plug end, 323 guide surface, 33 positioning groove, 4 second connecting plate, 41 plug hole, 5 connecting block, 6 main body plate, 7 bridge plate, 71 first bridge hole, 72 second bridge hole, 8 clamping plate, 81 clamping hole. DETAILED DESCRIPTION

[0035] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, 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.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Embodiment 1:

[0040] like Figures 2 to 5 As shown, this embodiment shows a connection mechanism of a paper model, including a first connection plate 2 and a second connection plate 4 that are plugged into each other, the first connection plate 2 includes a main body 21 and a connector 3, the second connection plate 4 is provided with a socket 41 that cooperates with the connector 3, the connector 3 includes a plug connector 32 and a connecting portion 31 for connecting the plug connector 32 and the main body 21, the plug connector 32 includes a connecting end 321 connected to the connecting portion 31, the width of the connecting end 321 is greater than the width of the socket 41, a positioning groove 33 matching the inner wall of the socket 41 is formed between the connecting end 321, the connecting portion 31 and the main body 21, and the connector 3 is plugged into and cooperated with the socket 41 so that the inner wall of the socket 41 is positioned in the positioning groove 33.

[0041] The plug connector 3 in this embodiment includes a plug connector 32 and a connecting portion 31. The plug connector 32 has a connecting end 321 connected to the connecting portion 31. A positioning groove 33 matching the inner wall of the socket 41 is formed between the connecting end 321, the connecting portion 31 and the main body 21. After the plug connector 3 is connected to the socket 41, the plug connector 32 passes through the socket 41, so that the connecting end 321 and the main body 21 are respectively located on both sides of the second connecting plate 4. Since the width of the connecting end 321 is greater than the width of the socket 41, the connecting end 321 and the main body 21 respectively form limiting surfaces on both sides of the second connecting plate 4, thereby positioning the second connecting plate 4 between the connecting end 321 and the main body 21, that is, the inner wall of the socket 41 is embedded in the positioning groove 33; secondly, the positioning The groove 33 matches the inner wall of the socket 41, that is, the side wall of the connecting portion 31 matches the inner wall of the socket 41, which can increase the contact panel between the connecting portion 31 and the inner wall of the socket 41, so that the contact between the connecting portion 31 and the socket 41 is more uniform and precise, which can effectively reduce the shaking amplitude of the first connecting plate 2 and the second connecting plate 4 after plugging together, and make the plugging of the first connecting plate 2 and the second connecting plate 4 more stable and reliable; in addition, the present embodiment forms a limit on the second connecting plate 4 through the connecting end 321, which can increase the contact area between the connecting end 321 and the second connecting plate 4, and can effectively disperse the stress on the connecting end 321, thereby reducing the possibility of deformation of the plug connector 32 due to long-term stress, which helps to extend the service life of the plug connector 32.

[0042] like Figure 2 and Figure 3 As shown, in this embodiment, the connecting portion 31 is in the shape of an elongated strip, and the length of the connecting portion 31 is greater than the length of the insertion hole 41. The connecting portion 31 provides sufficient length support for the plug connector 32 to pass through the insertion hole 41, so that the plug connector 32 and the main body 21 are respectively located on both sides of the second connecting plate 4; in addition, the two ends of the connecting portion 31 are respectively perpendicular to the connecting end 321 and the main body 21, and the overall width of the connecting end 321 is greater than the width of the connecting portion 31. The connecting end 321 extends to both sides of the connecting portion 31, so that a positioning groove 33 is formed between the connecting end 321, the connecting portion 31 and the main body 21, wherein the connecting end 321 and the main body 21 partially form a positioning groove The side walls of the positioning groove 33 and the connecting portion 31 form the bottom wall of the positioning groove 33, and the side walls are all perpendicular to the bottom wall, so that the positioning groove 33 is an overall U-shaped structure, which is more matched with the structure at the inner wall of the socket 41. After the connector 3 is plugged into the socket 41, the positioning groove 33 and the second connecting plate 4 have a larger contact area, which can improve the positioning ability of the positioning groove 33 on the second connecting plate 4, reduce the shaking amplitude of the second connecting plate 4, and improve the plug-in stability of the first connecting plate 2 and the second connecting plate 4. At the same time, it can also disperse the stress on the head of the connector 3, reduce the possibility of deformation of the plug connector 32, and significantly extend the service life of the plug connector 32.

[0043] like Figure 4 and Figure 5 As shown, the plug connector 32 in this embodiment also includes a plug end 322 away from the connecting portion 31, and the width of the plug end 322 is smaller than the width of the socket 41, so that the plug end 322 can smoothly pass through the socket 41, making the plugging of the plug connector 32 and the socket 41 smoother, and reducing the possibility of the plug connector 32 and the socket 41 being stuck; in addition, a guide surface 323 for guiding the plug connector 32 to pass through the socket 41 is provided between the plug end 322 and the connecting end 321, and the guide surface 323 can guide the plug connector 32 to cross the socket 41 to achieve plugging, making the plugging of the vehicle connector and the socket 41 smoother and more labor-saving, and at the same time, the guide surface 323 can also reduce the resistance encountered by the plug connector 32 during the plugging process, and reduce the possibility of damage to the plug connector 32.

[0044] like Figure 5As shown, the guide surface 323 described in the present embodiment includes an arc surface and an inclined surface, wherein one end of the inclined surface extends to the end of the connecting end 321, the other end of the inclined surface smoothly transitions with the arc surface, and the end of the arc surface away from the inclined surface is connected to the plug end 322, and the inclined surface forms an angle P with the length direction of the connecting portion 31, and 5°≤P≤15°; during the plugging process of the plug connector 32, the portion of the guide surface 323 close to the plug connector 32 preferentially contacts the inner wall of the plug hole 41, and when the plugging force is large, the guide surface 323 will collide with the plug hole 41, and when the portion of the guide surface 323 close to the plug connector 32 adopts an arc surface structure, it can effectively reduce the impact force between the guide surface 323 and the inner wall of the plug hole 41 during the plugging process, reduce the deformation of the connection between the plug end 322 and the guide surface 323 due to the impact during the plugging process, effectively maintain the integrity of the plug end 322, and improve the aesthetics of the first connecting plate 2 after plugging.

[0045] In addition, the portion of the guide surface 323 close to the connecting end 321 adopts an inclined surface. During the plugging process, the inclined surface contacts the inner wall of the socket 41, thereby guiding the plug connector 32 to pass through the socket 41, making it easier for the plug connector 32 to pass through the socket 41 and reducing the difficulty of plugging the plug connector 32; secondly, an angle P is formed between the inclined surface and the connecting portion 31, and 5°≤P≤15°, which can slow down the gradual change of the inclined surface, increase the effective guiding length between the guide surface 323 and the inner wall of the socket 41, further reduce the external force required for the plug connector 32 to pass through the socket 41, and also reduce the possibility of the guide surface 323 and the inner wall of the socket 41 being stuck, making the plugging of the plug connector 32 smoother; secondly, the above-mentioned angle design can increase the width of the plug end 322, make the plug connector 32 have stronger strength, and improve the deformation resistance of the plug connector 32 When P is less than 5°, the guiding ability of the inclined surface is reduced. Under the condition that the width of the connecting end 321 remains unchanged, in order to allow the plug connector 32 to pass through the plug hole 41 normally, it is necessary to increase the spacing between the plug end 322 and the connecting end 321, thereby increasing the length of the plug connector 32, which will increase the manufacturing cost of the plug connector 32. At the same time, after the plugging is completed, the length of the plug connector 32 protruding from the surface of the second connecting plate 4 is relatively large, which is easy to bend due to collision, and also reduces the overall aesthetics of the paper model; when P is greater than 15°, the gradual change process of the inclined surface is faster, and the inclined surface and the inner wall of the plug hole 41 are easy to get stuck during the plugging process. At the same time, under the condition that the width of the connecting end 321 remains unchanged, the width of the plug end 322 will be reduced, thereby reducing the overall strength of the plug connector 32, causing the plug connector 32 to be easily deformed.

[0046] It should be noted that in other embodiments, the guide surface 323 may be a curved surface as a whole, or a sloped surface as a whole.

[0047] like Figure 3In the embodiment shown in the figure, the width of the connecting end 321 is D, the width of the plug hole 41 is d, and 0.2mm≤Dd≤5mm, which can increase the contact area between the connecting end 321 and the second connecting plate 4, and at the same time make the connecting end 321 have enough length to limit the second connecting plate 4, reduce the possibility of the second connecting plate 4 escaping from the positioning groove 33, and also improve the positioning stability of the positioning groove 33 on the second connecting plate 4, reduce the shaking amplitude of the second connecting plate 4, and in addition, the above-mentioned length setting can also make the connecting end 321 pass through the plug hole 41 smoothly, and reduce the possibility of the connecting end 321 and the plug hole 41 being stuck; and when Dd<0.2mm, the plug connector After the connector 32 passes through the insertion hole 41, the extension of the connecting end 321 in the direction away from the insertion hole 41 is relatively short, resulting in a weak limiting ability of the connecting end 321 on the second connecting plate 4, making it easy for the plug-in end 322 to detach from the insertion hole 41, so that the plug-in connection between the first connecting plate 2 and the second connecting plate 4 fails, affecting the overall stability of the paper model; and when Dd>5mm, the overall width of the connecting end 321 is larger than the width of the insertion hole 41, and a larger external force is required during the plug-in process to make the plug connector 32 pass through the insertion hole 41 as a whole. During the plug-in process, the plug connector 32 may be deformed or damaged due to excessive external force, and may even cause the connecting end 321 to be unable to pass through the insertion hole 41 normally.

[0048] In order to reduce the manufacturing cost of the first connecting plate 2, the connector 3 and the main body 21 described in the present embodiment are an integrated structure, which can eliminate the connection structure between the connector 3 and the main body 21, increase the connection stability and strength between the connector 3 and the main body 21, make the overall structure of the first connecting plate 2 simpler and more reliable, and also can reduce the manufacturing cost of the connector 3 and the main body 21.

[0049] Embodiment 2:

[0050] like Figures 6 to 9 As shown, this embodiment shows a swing structure, including a plurality of mutually hinged segments, each segment including a main body plate 6, two adjacent main body plates 6 are hinged by a bridge plate 7, and a connecting mechanism as described in the first embodiment is provided between the main body plate 6 and the bridge plate 7, wherein two connectors 3 are provided on both sides of the main body plate 6 in this embodiment, and the bridge plate 7 is provided with a first bridge hole 71 and a second bridge hole 72, and the first bridge hole 71 and the second bridge hole 72 are both provided with arc-shaped edges.

[0051] During the connection process of this embodiment, two adjacent chain segments are rotationally connected through the bridge piece 7, wherein the connector 3 at the front end of the main plate 6 is plugged into the second bridge hole 72 of the front bridge piece 7 to connect the front chain segment, and the connector 3 at the rear end of the main plate 6 is plugged into the first bridge hole 71 of the rear bridge piece 7 to connect the rear chain segment. In addition, in this embodiment, the first bridge hole 71 and the second bridge hole 72 are both circular holes, thereby enabling the bridge piece 7 to be hinged to the main plate 6, so that the two adjacent chain segments can swing relative to each other, thereby simulating the spine or tail of an animal; in addition, in this embodiment, the diameters of the first bridge hole 71 and the second bridge hole 72 are smaller than the width of the connecting end 321, so that the bridge piece 7 can be limited between the connecting end 321 and the main plate 6, thereby reducing the possibility of separation between the main plate 6 and the bridge piece 7, and improving the connection stability between the main plate 6 and the bridge piece 7.

[0052] In order to further limit the bridging piece 7 from detaching from the main plate 6, the chain segment in this embodiment also includes a snap-in plate 8, which is provided with two snap-in holes 81 that cooperate with the connector 3, and the width of the snap-in hole 81 is smaller than the width of the connecting end 321. The connector 3 is plugged into the snap-in hole 81 to position the snap-in plate 8 between the connecting end 321 and the bridging piece 7. It should be noted that the two snap-in holes 81 of the snap-in plate 8 are respectively plugged into the same two connectors 3 of the main plate 6.

[0053] Embodiment three:

[0054] like Fig.10 and Fig.11 As shown, this embodiment shows a paper model, including a plurality of mutually spliced ​​connection blocks 5, and a connection mechanism as described in the first embodiment is provided between two connected connection blocks 5. It should be noted that the connection block 5 may be provided with a plug hole 41 and a connector 3 at the same time; in addition, the style of the paper model formed by splicing the connection blocks 5 is not limited to Figure 6 The whale shown in the figure may also be in the form of other animals, plants or other objects.

[0055] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes but is not limited to the contents described in the drawings and the above specific implementation. Any modification that does not deviate from the functional and structural principles of the utility model will be included in the scope of the claims.

Claims

1. A connecting mechanism for a paper model, comprising a first connecting plate and a second connecting plate plugged into each other, the first connecting plate comprising a main body and a plug-in component, the second connecting plate being provided with a plug-in hole matched with the plug-in component, characterized in that: The plug connector includes a plug connector and a connecting portion for connecting the plug connector and a main body. The plug connector includes a connecting end connected to the connecting portion. The width of the connecting end is greater than the width of the socket. A positioning groove matching the inner wall of the socket is formed between the connecting end, the connecting portion and the main body. The plug connector is plugged into the socket so that the inner wall of the socket is positioned in the positioning groove.

2. The connecting mechanism of a paper model according to claim 1, characterized in that: The connecting portion is in the shape of an elongated strip, and two ends of the connecting portion are respectively perpendicular to the connecting end and the main body.

3. The connecting mechanism of a paper model according to claim 1, characterized in that: The plug connector also includes a plug end away from the connecting portion, and a width of the plug end is smaller than a width of the plug hole.

4. The connecting mechanism of a paper model according to claim 3, characterized in that: A guide surface for guiding the plug connector to pass through the plug hole is provided between the plug end and the connection end.

5. The connecting mechanism of a paper model according to claim 4, characterized in that: The guide surface is a cambered surface.

6. The connecting mechanism of a paper model according to claim 4, characterized in that: The guide surface is an inclined surface, and an angle P is formed between the guide surface and the length direction of the connecting portion, and 5°≤P≤15°.

7. The connecting mechanism of a paper model according to claim 4, characterized in that: The guide surface includes a curved surface and an inclined surface, one end of the inclined surface extends to the connecting end, and the other end smoothly transitions to the curved surface, and the end of the curved surface away from the inclined surface is connected to the plug-in end.

8. The connecting mechanism of a paper model according to claim 1, characterized in that: The width of the connecting end is D, the width of the plug hole is d, and 0.2mm≤Dd≤5mm.

9. The connecting mechanism of a paper model according to claim 1, characterized in that: The plug connector and the main body are an integrated structure.

10. A swing structure, comprising a plurality of mutually hinged segments, each segment comprising a main body plate, two adjacent main body plates being hinged via a bridge plate, characterized in that: A connecting mechanism as described in any one of claims 1 to 9 is provided between the main body plate and the bridge plate, wherein two connectors are provided on both sides of the main body plate, the bridge plate is provided with a first bridge hole and a second bridge hole, the first bridge hole and the second bridge hole are both provided with arc-shaped edges, the connector at the front end of the main body plate is plugged into the second bridge hole of the front bridge plate to connect the front chain segment, and the connector at the rear end of the main body plate is plugged into the first bridge hole of the rear bridge plate to connect the rear chain segment.

11. A swing structure according to claim 10, characterized in that: The chain segment also includes a clamping plate, which is provided with two clamping holes matched with the plug-in component, the width of the clamping holes is smaller than the width of the connecting end, and the plug-in component is plugged into the clamping holes to position the clamping plate between the connecting end and the bridge piece.

12. A paper model, comprising a plurality of interconnected blocks, characterized in that: A connecting mechanism as described in any one of claims 1 to 9 is provided between two connected connecting blocks.

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