Integrated exhibition and training steel space frame and its usage method

Abstract

This invention discloses an integrated training and demonstration steel grid frame and its usage method. The steel grid frame consists of multiple bolt balls (1) and multiple steel pipes. Each bolt ball (1) has multiple mounting surfaces (2), and each mounting surface (2) has a mounting groove (3) in its center. A nut with a variable inner diameter is installed in the mounting groove (3), and the nut is screwed onto the corresponding steel pipe. The nut is composed of multiple circumferentially distributed moving blocks (4). The inner circumferential surface of each moving block (4) is threaded, and the moving direction of the moving block (4) is the radial direction of the nut. A guide mechanism is provided between the moving block (4) and the bolt ball (1), and a spring (5) is provided on the outer side of each moving block (4). This invention has the advantages of good training effect and high decomposition efficiency.

Description

Technical Field

[0001] This invention belongs to the field of Spreadtrum equipment, and particularly relates to a steel space frame that integrates exhibition and training and its usage method. Background Technology

[0002] Steel space frame, also known as steel structure space frame, is described in the specification of patent application number 201710084468.7. Figure 1 and attached Figure 2 The steel mesh structure is composed of multiple bolted balls and steel pipes, with the steel pipes and bolted balls connected by screws. Different shapes of steel mesh frames can be constructed using the steel pipes and bolted balls according to different needs. The outer circumference of the bolted balls has multiple mounting surfaces at different angles. Bolt holes are located in the center of each mounting surface. The steel pipes are rotated into the bolt holes via screws at their ends, thus fixing the steel pipes to the bolted balls.

[0003] In teaching, to help students better understand steel space frame structures and master their key knowledge points, it's necessary to use physical objects to aid teaching. These objects are often disassembled and reassembled by students to assess their understanding. However, existing physical objects are essentially scaled-down models of actual steel space frames. While these models allow students to visually observe them, disassembling and reassembling them requires twisting each steel pipe multiple times from the bolt balls, resulting in very low efficiency and wasting valuable class time. Summary of the Invention

[0004] The purpose of this invention is to provide an integrated training and demonstration steel grid frame and its usage method. This invention has the advantages of good training effect and high decomposition efficiency.

[0005] The technical solution of the present invention: an integrated steel grid frame for exhibition and training, composed of multiple bolt balls and multiple steel pipes, with multiple mounting surfaces on the bolt balls, mounting grooves in the middle of the mounting surfaces, and nuts with variable inner diameters installed in the mounting grooves, the nuts being screwed to the corresponding steel pipes.

[0006] In the aforementioned integrated exhibition and training steel grid frame, the nut is composed of multiple circumferentially distributed moving blocks. The inner circumferential surface of the moving blocks is threaded, the moving direction of the moving blocks is the radial direction of the nut, a guide mechanism is provided between the moving blocks and the bolt ball, and a spring is provided on the outer side of the moving blocks.

[0007] In the aforementioned integrated exhibition and training steel grid frame, the guiding mechanism includes a guide hole that passes horizontally through the moving block, a first blind hole at the outer end of the guide hole, a guide rod fixed to the bolt ball inside the guide hole, and a cap located inside the first blind hole at the end of the guide rod.

[0008] In the aforementioned integrated exhibition and training steel grid frame, a second blind hole is provided on the outer wall of the movable block, and the spring is located in the second blind hole.

[0009] In the aforementioned integrated exhibition and training steel grid frame, there are two guide holes, which are distributed vertically, and a second blind hole is located between the two guide holes.

[0010] In the aforementioned integrated exhibition and training steel grid frame, the two opposing sidewalls of the movable block located in the circumferential direction of the nut are parallel to each other, and the mounting groove is provided with multiple guide grooves corresponding to the positions of multiple movable blocks, with the outside of the movable block located inside the guide groove.

[0011] In the aforementioned integrated exhibition and training steel grid frame, the top surface of the movable block is provided with a drive groove, the two ends of which pass through the two side walls of the movable block respectively. The outer side wall of the drive groove is a first spiral surface. Multiple drive grooves on multiple movable blocks constitute a drive ring groove. A drive ring is provided in the drive ring groove. A gap is left between the drive ring and the inner wall of the drive groove. A drive handle is provided on the drive ring. Multiple drive teeth are provided on the drive ring. A second spiral surface that fits with the first spiral surface is provided on the drive teeth. One end of the second spiral surface is connected to the outer peripheral surface of the drive ring, and the other end of the second spiral surface is connected to the outer peripheral surface of the drive ring through a stepped surface.

[0012] In the aforementioned integrated exhibition and training steel grid, there are an even number of moving blocks, with two adjacent moving blocks forming a group. In each group, one moving block is equipped with a cover plate, which is located on top of the drive ring to prevent the drive ring from moving axially.

[0013] In the aforementioned integrated exhibition and training steel grid frame, the drive handle is located between any two adjacent cover plates. The drive handle has a first positioning surface and a second positioning surface on its two sides respectively. When the drive handle is rotated so that the first positioning surface contacts one of the cover plates, the moving block moves outward to the limit distance. When the drive handle is rotated so that the second positioning surface contacts the other cover plate, the moving block moves inward to the limit distance.

[0014] The aforementioned method of using the integrated exhibition and training steel grid frame involves adjusting the inner diameter of the nut to its minimum, connecting the steel pipe to the nut, fixing the bolt ball and the steel pipe together, and then constructing the required steel grid frame.

[0015] Adjust the inner diameter of the nut to its maximum, pull the steel pipe out of the nut to separate the bolt ball from the steel pipe, and disassemble the steel space frame in sequence.

[0016] Compared with existing technologies, this invention improves the structure of the bolt ball based on the existing steel space frame by incorporating a nut with a variable inner diameter on the mounting surface. By reducing the inner diameter of the nut, a reliable threaded connection can be established between the nut and the steel pipe. Multiple bolt balls and multiple steel pipes can be used to construct a steel space frame, and the entire construction process is identical to the actual assembly process of a steel space frame, resulting in excellent practical training effects. Disassembling the assembled steel space frame only requires rotating the drive handle to enlarge the inner diameter of the nut, thus separating the nut from the steel pipe, i.e., separating the bolt ball from the steel pipe. This rapid separation greatly improves the disassembly speed of the steel space frame, reducing the waste of valuable class time. In summary, this invention has the advantages of excellent practical training effects and high disassembly efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of the present invention after the nut is removed.

[0019] Figure 3 This is a schematic diagram of the nut's structure.

[0020] Figure 4 This is a top view of the nut.

[0021] Figure 5 This is a schematic diagram of the drive ring.

[0022] Figure 6 This is a cross-sectional diagram of the moving block.

[0023] Figure 7 This is a schematic diagram of the moving block.

[0024] The markings in the attached diagram are as follows: 1-bolt ball, 2-mounting surface, 3-mounting groove, 4-moving block, 5-spring, 6-guide hole, 7-first blind hole, 8-guide rod, 9-cap, 10-second blind hole, 11-guide groove, 12-drive groove, 13-first helical surface, 14-drive ring, 15-drive tooth, 16-second helical surface, 17-step surface, 18-cover plate, 19-first positioning surface, 20-second positioning surface, 21-drive handle. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0026] Example. The integrated exhibition and training steel grid frame consists of multiple bolt balls 1 and multiple steel pipes. The bolt balls 1 have multiple mounting surfaces 2, such as... Figure 1 As shown, the characteristics are as follows:

[0027] The mounting surface 2 has a mounting groove 3 in the middle, and a nut with a variable inner diameter is provided in the mounting groove 3. The nut is screwed to the corresponding steel pipe.

[0028] like Figure 2 As shown, the nut is composed of six circumferentially distributed movable blocks 4. The inner circumferential surface of the movable blocks 4 is provided with threads. The moving direction of the movable blocks 4 is the radial direction of the nut. A guide mechanism is provided between the movable blocks 4 and the bolt ball 1. A spring 5 is provided on the outer side of the movable blocks 4.

[0029] The guiding mechanism includes a guide hole 6 that passes horizontally through the moving block 4. There are two guide holes 6, which are distributed vertically. A first blind hole 7 is provided at the outer end of the guide hole 6. A guide rod 8 that is fixed to the bolt ball 1 is provided inside the guide hole 6. A cap 9 located inside the first blind hole 7 is provided at the end of the guide rod 8.

[0030] The outer wall of the movable block 4 is provided with a second blind hole 10, which is located between the two guide holes 6. The spring 5 is located inside the second blind hole 10. Under the pressure of the spring 5, the movable block 4 tends to move inward. When the movable block 4 moves inward until the cap 9 contacts the bottom surface of the first blind hole 7, the segmented threads on the inner circumferential surfaces of the six movable blocks 4 are located on the same cylindrical surface, which can establish a screw connection with the steel pipe.

[0031] The two opposing sidewalls of the movable block 4 located in the circumferential direction of the nut are parallel to each other. The mounting groove 3 is provided with multiple guide grooves 11 corresponding to the positions of the multiple movable blocks 4. The exterior of the movable block 4 is located within the guide grooves 11, and the movable block 4 moves in a directional manner within the guide grooves 11. The guide grooves 11 restrict the position of the movable block 4 in the circumferential direction, preventing the movable block 4 from transmitting the force to the guide rod 8 when subjected to circumferential force, thus preventing deformation of the guide rod 8 and improving its service life.

[0032] The top surface of the movable block 4 is provided with a drive groove 12. The two ends of the drive groove 12 pass through the two side walls of the movable block 4 respectively. The outer side wall of the drive groove 12 is a first spiral surface 13. Six drive grooves 12 form a drive ring groove. A drive ring 14 is provided in the drive ring groove. There is a gap between the drive ring 14 and the inner wall of the drive groove 12. A drive handle 21 is provided on the drive ring 14. Six drive teeth 15 are provided on the outer circumferential surface of the drive ring 14. A second spiral surface 16 that fits with the first spiral surface 13 is provided on the drive teeth 15. One end of the second spiral surface 16 is connected to the outer circumferential surface of the drive ring 14. The other end of the second spiral surface 16 is connected to the outer circumferential surface of the drive ring 14 through a stepped surface 17.

[0033] Two adjacent moving blocks 4 are grouped together, and one moving block 4 in each group is provided with a cover plate 18. The cover plate 18 is located on the top of the drive ring 14 to prevent the drive ring 14 from moving axially and to prevent the drive ring 14 from falling out.

[0034] The drive handle 21 is located between any two adjacent cover plates 18. A first positioning surface 19 and a second positioning surface 20 are respectively provided on both sides of the drive handle 21. When the drive handle 21 is rotated so that the first positioning surface 19 contacts one of the cover plates 18, the moving block 4 moves outward to its maximum distance. When the drive handle 21 is rotated so that the second positioning surface 20 contacts the other cover plate 18, the moving block 4 moves inward to its maximum distance. At this point, the cap 9 contacts the bottom surface of the first blind hole 7. By setting the first positioning surface 19 and the second positioning surface 20, the disassembly efficiency of the steel grid frame can be further improved.

[0035] Instructions for use: Taking any bolt ball 1 and any steel pipe on it as an example, such as... Figure 3 As shown, at this time, the second positioning surface 20 is in contact with the cover plate on the right side, and the first spiral surface 13 is located inside the second spiral surface 16 and fits together. At this time, under the elastic force of the spring 5, the moving block 4 is in the innermost state, and the segmented threads on the inner circumferential surfaces of the six moving blocks 4 are located on the same cylindrical surface. The steel pipe can be screwed into the nut to realize the connection and fixation between the bolt ball 1 and the steel pipe. When disassembling, rotate the drive handle 21 counterclockwise to make the first positioning surface 19 contact the cover plate 18 on the left side. The first spiral surface 13 and the second spiral surface 16 slide circumferentially, but the drive teeth 15 do not completely leave the drive groove 12. The drive ring 14 pushes the moving block 4 to move outward, the inner diameter of the nut becomes larger, and the steel pipe can be directly pulled out of the nut to realize the separation between the bolt ball 1 and the steel pipe.

Claims

1. An integrated steel grid frame for exhibition and training, composed of multiple bolt balls (1) and multiple steel pipes, wherein the bolt balls (1) are provided with multiple mounting surfaces (2), characterized in that: The mounting surface (2) is provided with a mounting groove (3) in the middle, and a nut with a variable inner diameter is provided in the mounting groove (3), and the nut is screwed to the corresponding steel pipe; The nut is composed of multiple circumferentially distributed moving blocks (4). The inner circumferential surface of the moving blocks (4) is provided with threads. The moving direction of the moving blocks (4) is the radial direction of the nut. A guide mechanism is provided between the moving blocks (4) and the bolt ball (1). A spring (5) is provided on the outer side of the moving blocks (4). The top surface of the moving block (4) is provided with a drive groove (12). The two ends of the drive groove (12) pass through the two side walls of the moving block (4). The outer side wall of the drive groove (12) is a first spiral surface (13). Multiple drive grooves (12) on multiple moving blocks (4) constitute a drive ring groove. A drive ring (14) is provided in the drive ring groove. There is a gap between the drive ring (14) and the inner wall of the drive groove (12). A drive handle (21) is provided on the drive ring (14). Multiple drive teeth (15) are provided on the outer circumferential surface of the drive ring (14). A second spiral surface (16) that fits with the first spiral surface (13) is provided on the drive teeth (15). One end of the second spiral surface (16) is connected to the outer circumferential surface of the drive ring (14). The other end of the second spiral surface (16) is connected to the outer circumferential surface of the drive ring (14) through a stepped surface (17).

2. The integrated exhibition and training steel grid frame according to claim 1, characterized in that: The guiding mechanism includes a guide hole (6) that passes horizontally through the moving block (4), a first blind hole (7) is provided at the outer end of the guide hole (6), a guide rod (8) that is fixed to the bolt ball (1) is provided in the guide hole (6), and a cap (9) located in the first blind hole (7) is provided at the end of the guide rod (8).

3. The integrated exhibition and training steel grid frame according to claim 2, characterized in that: The outer wall of the movable block (4) is provided with a second blind hole (10), and the spring (5) is located in the second blind hole (10).

4. The integrated exhibition and training steel space frame according to claim 3, characterized in that: There are two guide holes (6), which are distributed vertically, and the second blind hole (10) is located between the two guide holes (6).

5. The integrated exhibition and training steel grid frame according to claim 1, characterized in that: The two opposing sidewalls of the movable block (4) in the circumferential direction of the nut are parallel to each other. The mounting groove (3) is provided with multiple guide grooves (11) corresponding to the positions of multiple movable blocks (4). The outside of the movable block (4) is located in the guide groove (11), and the movable block (4) moves in a directional manner in the guide groove (11).

6. The integrated exhibition and training steel grid frame according to claim 1, characterized in that: The number of moving blocks (4) is even, and two adjacent moving blocks (4) are grouped together. In each group, one moving block (4) is provided with a cover plate (18). The cover plate (18) is located on the top of the drive ring (14) to prevent the drive ring (14) from moving axially.

7. The integrated exhibition and training steel space frame according to claim 6, characterized in that: The drive handle (21) is located between any two adjacent cover plates (18). The drive handle (21) has a first positioning surface (19) and a second positioning surface (20) on both sides. When the drive handle (21) is rotated so that the first positioning surface (19) contacts one of the cover plates (18), the moving block (4) moves outward to the limit distance. When the drive handle (21) is rotated so that the second positioning surface (20) contacts the other cover plate (18), the moving block (4) moves inward to the limit distance.

8. The method of using the integrated exhibition and training steel space frame according to any one of claims 1 to 7, characterized in that: Adjust the inner diameter of the nut to the minimum state, connect the steel pipe to the nut, and fix the bolt ball (1) and the steel pipe in sequence to build the required steel grid frame. Adjust the inner diameter of the nut to its maximum, pull the steel pipe out of the nut, and separate the bolt ball (1) and the steel pipe. Disassemble and disassemble the steel grid frame in sequence.

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