Structural mechanical model

Abstract

The utility model provides a structural mechanics model, and particularly relates to the technical field of teaching supplies, the structural mechanics model is formed by splicing a plurality of rod bodies through a first hinge structure and a second hinge structure, the first hinge structure comprises a first clamping end connected with the rod bodies and a first rotating part connected with the first clamping end, and the second hinge structure comprises a second clamping end and a second rotating part connected with the second clamping end; the second hinge structure comprises a second clamping end connected with the rod body and a second rotating part connected with the second clamping end; the first hinge structure and the second hinge structure are matched to realize coaxial fixation of the plurality of rod bodies, and the coaxial fixation has the advantages that the plurality of rod bodies can rotate, and the splicing work of models of multiple styles is realized; and through the arrangement of the first fixing piece, the connection of the connecting position of the first hinge structure and the second hinge structure and the connection of the rigid joint and the hinge joint can be switched, so that the first hinge structure and the second hinge structure are switched in the aspects of fixation and rotation.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching supplies, in particular to a structural mechanics model. Background Technique

[0002] Structural mechanics is an important professional basic course for civil engineering and related majors. It links theoretical courses such as theoretical mechanics and material mechanics with engineering practice, and is a key link in the teaching process that connects the preceding with the following. Conducting structural mechanics experiments can enable students to combine the learned theories with practice and better deepen students' understanding of knowledge.

[0003] However, in current structural mechanics models, most of them cannot adjust the angles between the rods, or the adjustment usually requires disassembling and replacing different joint mechanisms, which increases the complexity and time cost of operation; in addition, the existing rod structure designs usually lack universality, resulting in only specific rods can be used to assemble the model, with high costs and long processing cycles.

[0004] Therefore, it is necessary to design a structural mechanics model with the functions of rod angle adjustment and rod replacement. Content of the Utility Model

[0005] In order to solve the above problems, the utility model provides a structural mechanics model to achieve the purpose of flexible conversion between a rigid connection structure, a hinged connection structure, and a combined structure for a single model.

[0006] The utility model is realized through the following technical solutions:

[0007] The utility model provides a structural mechanics model, which is spliced by a plurality of rods through a first hinged structure and a second hinged structure. The first hinged structure includes a first clamping end connected to the rod and a first rotating part connected to the first clamping end. The second hinged structure includes a second clamping end connected to the rod and a second rotating part connected to the second clamping end. The first rotating part includes a first plate body connected to the first clamping end. A first connecting part is fixedly installed at the top of the first plate body. One end of the first connecting part away from the first plate body is provided with a radian end. A first hinge hole is opened on the first connecting part and near the radian end. The second rotating part includes a second plate body and a second connecting part arranged on the top of the second plate body and clamping the first connecting part. The second connecting part has the same structure as the first connecting part. A second hinge hole is opened on the second connecting part and near the radian end. The first hinge hole and the second hinge hole are connected by a first fixing piece.

[0008] Further, on the surfaces of the first rotating part and the second rotating part, there are rough surfaces which are made by sandblasting process or by adding textures.

[0009] Further, the first clamping end includes a top plate, two side plates which are arranged at the bottom of the top plate and have a radian transition, both sides of the two side plates extend inwards and form extension ends, one ends of the extension ends close to the top plate are inclined, and there is a gap between the two extension ends. Mounting holes for fixing the rod body are formed on both of the two side plates, and a second fixing member is arranged in the mounting holes.

[0010] Further, on the inner sides of the two side plates, there are several convex points for anti-slip.

[0011] Further, the second clamping end has the same structure as the first clamping end.

[0012] Further, the first fixing member includes a T-shaped member passing through the first hinge hole and the second hinge hole, and a locking member which is matched with the outer surface of the T-shaped member and rotates along the outer surface of the T-shaped member.

[0013] Further, the second fixing member has the same structure as the first fixing member.

[0014] Further, the first hinge structure or the second hinge structure is arranged on both sides of the rod body.

[0015] Further, one side of the rod body is connected to the first hinge structure, and the other side is connected to the second hinge structure.

[0016] Further, it further includes a third hinge structure which is the same as the second hinge structure and clamps the second connecting part in the second hinge structure.

[0017] The beneficial effects of the present utility model:

[0018] The cooperation of the first hinge structure and the second hinge structure can realize the coaxial fixation of several rod bodies. The advantage of using coaxial fixation is that several rod bodies can rotate and realize the splicing work of multiple styles of models. The setting of the first fixing member can switch the connection at the joint of the first hinge structure and the second hinge structure between a rigid node connection and a hinge node connection, so as to switch the first hinge structure and the second hinge structure between fixation and rotation.

[0019] The settings of the first clamping end and the second clamping end can be used to clamp and fix the rod body, and the setting of the second fixing member can be used to fix and loosen the rod body, so as to ensure the replacement work of the rod body. Description of the Drawings

[0020] Figure 1 Schematic diagram of the overall structure of the model in the present utility model;

[0021] Figure 2 Schematic diagram of the first hinge structure in the present utility model;

[0022] Figure 3 Schematic diagram of the second hinge structure in the present utility model;

[0023] Figure 4 Schematic diagram of the connection of the first hinge structure and the second hinge structure in the present utility model through the first fixing member;

[0024] Figure 5 Schematic diagram of the structure of the first fixing member in the present utility model;

[0025] Figure 6 Schematic diagram of the structure of the first clamping end in the present utility model;

[0026] Figure 7 Schematic diagram of the connection of the rod body and two first hinge structures in the present utility model;

[0027] Figure 8 Schematic diagram of the connection of the rod body and two second hinge structures in the present utility model;

[0028] Figure 9 Schematic diagram of the connection of the rod body with the first hinge structure and the second hinge structure in the present utility model;

[0029] Figure 10 Schematic diagram of the connection of the rod body and two third hinge structures in the present utility model;

[0030] Figure 11 Schematic diagram of the rod body and the first hinge structure and the third hinge structure in the present utility model;

[0031] Figure 12 Schematic diagram of the rod body and the second hinge structure and the third hinge structure in the rod body of the present utility model.

[0032] In the figure, 1 is the rod body; 2 is the first hinge structure; 21 is the first clamping end; 211 is the top plate; 212 is the side plate; 213 is the extension end; 214 is the mounting hole; 215 is the bump; 22 is the first rotating part; 221 is the first plate body; 222 is the first connecting part; 223 is the arc end; 224 is the first hinge hole; 225 is the rough surface; 3 is the second hinge structure; 31 is the second clamping end; 32 is the second rotating part; 321 is the second plate body; 322 is the second connecting part; 323 is the second hinge hole; 4 is the third hinge structure; 5 is the first fixing part; 51 is the T-shaped part; 52 is the locking part; 6 is the second fixing part. Detailed implementation mode

[0033] In order to make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be described clearly and completely below. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present utility model.

[0034] Embodiment

[0035] As Figures 1-12 shown, a composite hinge structure is composed of several rod bodies 1 spliced together through the first hinge structure 2 and the second hinge structure 3. The first hinge structure 2 includes a first clamping end 21 connected to the rod body 1 and a first rotating part 22 connected to the first clamping end 21. The second hinge structure 3 includes a second clamping end 31 connected to the rod body 1 and a second rotating part 32 connected to the second clamping end 31. The first rotating part 22 includes a first plate body 221 connected to the first clamping end 21. A first connecting part 222 is fixedly installed on the top of the first plate body 221. One end of the first connecting part 222 away from the first plate body 221 is provided with an arc end 223. On the first connecting part 222 and near the arc end 223, a first hinge hole 224 is opened. The second rotating part 32 includes a second plate body 321 and a second connecting part 322 arranged on the top of the second plate body 321 and clamping the first connecting part 222. The second connecting part 322 has the same structure as the first connecting part 222. On the second connecting part 322 and near the arc end 223, a second hinge hole 323 is opened. The first hinge hole 224 and the second hinge hole 323 are connected by a first fixing part 5;

[0036] Several rod bodies 1 can be spliced into structural mechanics models of different shapes through the first hinge structure 2 and the second hinge structure 3, such as trapezoids, rectangles, etc.;

[0037] The present application document will now be described by taking the structural force model of a trapezoidal structure as an example;

[0038] The cooperation between the second rotating part 32 and the first rotating part 22 can fix both ends of the rod body 1. Among them, the second rotating part 32 and the first rotating part 22 are fixed by the first fixing part 5; and the setting of the first fixing part 5 can be inserted into the first hinge hole 224 and the second hinge hole 323, and coaxial fixation of the first hinge structure 2 and the second hinge structure 3 can be achieved. Among them, when the first fixing part 5 fixes the first hinge structure 2 and the second hinge structure 3, that is, a rigid node connection, the first hinge structure 2 and the second hinge structure 3 cannot rotate. On the contrary, when the connection between the first fixing part 5 and the first hinge structure 2 and the second hinge structure 3 becomes loose, that is, a hinged node connection, both the first hinge structure 2 and the second hinge structure 3 can rotate around the first fixing part 5, so as to adjust the position of the rod body 1 and realize the splicing work of structural force models of different shapes;

[0039] In this embodiment, the settings of the first clamping end 21 and the second clamping end 31 can be used to clamp and fix the rod body 1, so as to ensure the progress of the structural force model splicing work.

[0040] Preferably, referring to Figure 2 and Figure 3 , the surfaces of the first rotating part 22 and the second rotating part 32 are provided with a rough surface 225, and the rough surface 225 is manufactured by sandblasting or adding texture; the setting of the rough surface 225 can increase the surface roughness of the first rotating part 22 and the second rotating part 32, and the surfaces of the first rotating part 22 and the second rotating part 32 are set to be rough, which can increase the reliability and stability of the rigid connection node; and the setting of the rough surface 225 can make the first fixing part 5 not easily rotate and loosen automatically during the placement process.

[0041] Preferably, referring to Figure 6 , the first clamping end 21 includes a top plate 211, two side plates 212 arranged at the bottom of the top plate 211 and having a radian transition. The two sides of the two side plates 212 extend inward to form extension ends 213. One end of the extension end 213 close to the top plate 211 is inclined, and there is a gap between the two extension ends 213. Installation holes 214 for fixing the rod body 1 are provided on both side plates 212, and a second fixing part is arranged in the installation hole 214;

[0042] The setting of the installation hole 214 can be used for the second fixing part 6 to be inserted and fixed. Among them, the cooperation between the second fixing part 6 and the gap between the two extension ends 213 can realize the fixing and loosening of the rod body 1; among them, the existence of the gap can not only provide a basis for the insertion of the rod body 1, but also provide a basis for the fixing and loosening of the rod body 1;

[0043] In this embodiment, one end of the extension end 213 close to the top plate 211 is inclined, and the advantage of the inclined setting is that it is convenient for the user to install the second fixing member 6.

[0044] Preferably, referring to Figure 6 , a number of anti-slip bumps 215 are provided on the inner sides of the two side plates 212. The setting of the bumps 215 can increase the stability of the rod body 1 after installation and prevent the rod body 1 from easily detaching from the first clamping end.

[0045] Preferably, the second clamping end 21 has the same structure as the first clamping end 21, and the use of the second clamping end 21 is the same as that of the first clamping end 21, both of which are used to clamp and fix the rod body 1.

[0046] Preferably, referring to Figure 4 and Figure 5 , the first fixing member 5 includes a T-shaped member 51 passing through the first hinge hole 224 and the second hinge hole 323, and a locking member 52 that cooperates with the outer surface of the T-shaped member 51 and rotates along the outer surface of the T-shaped member 51; the setting of the T-shaped member 51 in cooperation with the locking member 52 can fix the two ends of the second rotating portion 32; specifically, the long end of the T-shaped member 51 can be inserted into the first hinge hole 224 and the second hinge hole 323, and the shorter part of the T-shaped member 51 will fit against the outside of one side of the second hinge hole 323, and the locking member 52 cooperating with the T-shaped member 51 will fit against the outside of the other side of the second hinge hole 323, so as to realize the fixing of the first hinge structure 2 and the second hinge structure 3; optionally, the T-shaped member 51 includes a screw, and the locking member 52 includes a nut. Among them, when the nut is rotated clockwise, the nut will fit against the outside of the other side of the second hinge hole 323. At this time, the first rotating portion 22 and the second rotating portion 32 are connected as a fixed connection, that is, a rigid node connection; conversely, when the nut is rotated counterclockwise, one side of the nut will move away from the other side of the second hinge hole 323, and the nut is still connected to the stud. At this time, the first rotating portion 22 and the second rotating portion 32 are connected as a hinge joint, that is, both the first rotating portion 22 and the second rotating portion 32 can rotate along the screw.

[0047] Preferably, the second fixing member 6 has the same structure as the first fixing member 5; the function of the second fixing member 6 is to fix and loosen the rod body 1 inserted into the second clamping end 31.

[0048] Preferably, as Figures 7-9 shown, there are three connection arrangements of the rod body 1 and the hinge structure. First and second, the first hinge structure 2 or the second hinge structure 3 is provided on both sides of the rod body 1; third, one side of the rod body 1 is connected to the first hinge structure 2, and the other side is connected to the second hinge structure 3.

[0049] Preferably, referring toFigure 4 and Figures 10-12 , further comprising a third hinge structure 4 which is the same as the second hinge structure 3 and clamps the second connecting portion 322 in the second hinge structure 3; a plurality of third hinge structures 4 can be provided, and the latter third hinge structure 4 clamps the former third hinge structure 4; there are also three connection methods between the third hinge structure 4 and the rod body 1. For example, third hinge structures 4 are provided on both sides of the rod body 1, a first hinge structure 2 or a second hinge structure 3 is provided on one side of the rod body 1, and a third hinge structure 4 is provided on the other side of the rod body 1;

[0050] In this embodiment, the rod body 1 is a standard square tube. When assembling different models, only standard square tubes with different lengths need to be replaced, and the versatility is good.

[0051] Of course, the present utility model can also have many other implementation manners. Based on this implementation manner, other implementation manners obtained by ordinary technical personnel in the art without any creative labor belong to the scope protected by the present utility model.

Claims

1. A structural mechanics model, characterized in that: The cam is a hinge structure in which a plurality of rod bodies are connected by a first hinge structure and a second hinge structure, wherein the first hinge structure includes a first clamping end connected to the rod body and a first rotating part connected to the first clamping end, and the second hinge structure includes a second clamping end connected to the rod body and a second rotating part connected to the second clamping end; the first rotating part includes a first plate body connected to the first clamping end, a first connecting part is fixedly installed on the top of the first plate body, an end of the first connecting part away from the first plate body is arranged in an arc end, and a first hinge hole is provided on the first connecting part and near the arc end; the second rotating part includes a second plate body and a second connecting part arranged on the top of the second plate body and clamping the first connecting part, the second connecting part has the same structure as the first connecting part, and a second hinge hole is provided on the second connecting part and near the arc end; the first hinge hole and the second hinge hole are connected by a first fixing member.

2. A structural mechanics model according to claim 1, characterized in that: The surfaces of the first rotating part and the second rotating part are provided with rough surfaces, and the rough surfaces are manufactured by sandblasting or by adding textures.

3. A structural mechanics model according to claim 1, characterized in that: The first clamping end includes a top plate, two side plates arranged at the bottom of the top plate and having a transition arc, both sides of the two side plates extend inward to form extended ends, one end of the extended end close to the top plate is inclined, and a gap is left between the two extended ends, and both side plates are provided with mounting holes for fixing the rod body, and a second fixing member is arranged in the mounting hole.

4. A structural mechanics model according to claim 3, characterized in that: The inner sides of the two side plates are provided with a plurality of convex points for preventing slipping.

5. A structural mechanics model according to claim 3, characterized in that: The second clamping end has the same structure as the first clamping end.

6. A structural mechanics model according to claim 1, characterized in that: The first fixing member includes a T-shaped member passing through the first hinge hole and the second hinge hole, and a locking member matched with an outer surface of the T-shaped member and rotated along the outer surface of the T-shaped member.

7. A structural mechanics model according to claim 3, characterized in that: The second fixing member has the same structure as the first fixing member.

8. A structural mechanics model according to any one of claims 1 to 7, characterized in that: The first hinge structure or the second hinge structure is arranged on both sides of the rod body.

9. A structural mechanics model according to any one of claims 1 to 7, characterized in that: One side of the rod body is connected to the first hinge structure, and the other side of the rod body is connected to the second hinge structure.

10. A structural mechanics model according to claim 1, characterized in that: It also includes a third hinge structure which is the same as the second hinge structure and clamps the second connecting portion of the second hinge structure.

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