Movable stage truss support structure

Abstract

This utility model discloses a movable stage truss support structure, including a main truss and a secondary truss. The secondary truss is arranged between two main trusses. Sliding columns are fixedly connected between the upper and lower inner walls of the main trusses. Universal wheels are installed at the lower ends of the main trusses. The structure also includes a moving component. The moving component includes splicing plates, sockets, semi-circular rings, inserts, rotating rods, connecting rods, internally threaded cylinders, and threaded cylinders. The splicing plates are fixedly connected to the left and right ends of the secondary trusses. Symmetrically distributed sockets are provided on the opposite outer sides of the two splicing plates. This movable stage truss support structure, through the moving component composed of splicing plates, semi-circular rings, inserts, pins, rotating rods, internally threaded cylinders, threaded cylinders, and sliding columns, simplifies the assembly and disassembly process of the main and secondary trusses of the stage and improves the flexibility and convenience of adjusting the position of the secondary trusses.

Description

Technical Field

[0001] This utility model relates to the field of stage truss technology, specifically a movable stage truss support structure. Background Technology

[0002] With the booming development of the cultural and entertainment industry, the stage, as the core space for various performances, exhibitions and celebrations, has increasingly diversified construction needs. From large-scale concerts and music festivals to small corporate annual meetings and shopping mall promotional activities, different scenarios have put forward higher requirements for the size, structural flexibility and construction efficiency of the stage. As the core support structure for stage construction, the stage truss not only needs to have sufficient load-bearing capacity to ensure the safety of equipment and personnel, but also needs to adapt to frequent site transfers and rapid assembly needs. Especially in highly mobile performance activities, the convenience and practicality of the truss support directly affect the overall event preparation cycle and cost control.

[0003] Currently, stage truss supports on the market generally consist of main trusses, secondary trusses, and basic moving components. Their operation mainly revolves around frame construction and position adjustment. During the construction phase, workers typically first assemble the main trusses using connectors to form an overall support frame, and then install the secondary trusses horizontally between the main trusses, securing them with bolts, clips, and other components to create a stable planar or three-dimensional support structure. To meet movement requirements, some truss supports are equipped with casters at the bottom of the main trusses, allowing for manual pushing or traction by auxiliary equipment to move the entire truss structure to different locations on site. When the installation position of the secondary trusses needs to be adjusted, the fixing connectors must be released first, and then the secondary trusses must be moved according to the requirements. After adjustment, the fixing operation is completed again to adapt to different stage layout designs.

[0004] Existing stage truss supports still have room for optimization in practical applications. Firstly, the ease of assembly and disassembly needs improvement. Currently, most structures rely on multiple sets of bolts, requiring individual alignment and tightening during installation and sequential disassembly. This not only consumes a lot of manpower and time but also demands a certain level of operational proficiency from staff. In emergency adjustments or high-frequency setup scenarios, this can easily affect overall preparation efficiency. Secondly, the flexibility of adjusting the position of secondary trusses is limited. Due to the relatively simple fixing method between secondary and main trusses, adjusting their positions requires the complete removal of the original connecting parts, making it difficult to achieve precise micro-adjustments within a small range. Furthermore, manual assistance is required for positioning during the adjustment process. For heavier secondary trusses, additional external tools are needed, increasing the complexity of the operation. Therefore, we propose a movable stage truss support structure. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a movable stage truss support structure, which simplifies the assembly and disassembly process of the main stage truss and secondary trusses, improves the flexibility and convenience of adjusting the position of the secondary stage truss, and can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a movable stage truss support structure, including a main truss and a secondary truss, wherein the secondary truss is disposed between the two main trusses, and sliding columns are fixedly connected between the upper and lower inner walls of the main trusses, and casters are installed at the lower ends of the main trusses, and a moving component is also included.

[0007] The movable component includes splicing plates, sockets, semicircular rings, inserts, rotating rods, connecting rods, internal threaded cylinders, and threaded cylinders. The splicing plates are fixedly connected to the left and right ends of the secondary truss. Symmetrically distributed sockets are provided on the opposite outer surfaces of the two splicing plates. Inserts are fixedly connected to the front and rear ends of the opposite inner surfaces of the two semicircular rings. The inserts are inserted into the horizontally adjacent sockets. The semicircular rings and the horizontally adjacent splicing plates are used in conjunction with adjacent sliding columns. A rotating rod is rotatably connected to the upper end of the left sliding column, and a connecting rod is rotatably connected to the rear end of the rotating rod. The internal threaded cylinder is rotatably connected to the upper end of the rotating rod. The threaded cylinder is fixedly connected to the opposite outer arc surface of the left semicircular ring. The threaded cylinder works in conjunction with the internal threaded cylinder. This movable component, consisting of splicing plates, semicircular rings, inserts, pins, rotating rods, internal threaded cylinders, threaded cylinders, and sliding columns, simplifies the assembly and disassembly process of the main and secondary stage trusses, and improves the flexibility and convenience of adjusting the position of the secondary stage trusses.

[0008] Furthermore, the movable component also includes round holes, insertion holes, and pins. The round holes are symmetrically opened on the upper side wall of the splicing plate and are all connected to the adjacent insertion holes on the lower side. The insertion holes are all opened on the upper side of the insertion platform and are coaxial with the round holes on the upper side. The pins are respectively inserted between the round holes and the adjacent insertion holes on the lower side to limit the lateral position between the insertion platform and the insertion holes.

[0009] Furthermore, the movable component also includes a strip opening, a limiting groove, and a limiting plate. The strip opening is respectively opened at the front and rear ends of the upper side wall of the splicing plate and the upper side of the insertion platform. The round hole and the insertion hole are all connected to the horizontally adjacent strip opening. The limiting groove is opened at the front and rear ends inside the splicing plate and is connected to the front and rear adjacent insertion holes. The limiting plate is fixedly connected to the lower side of the outer arc surface of the pin. The limiting plate is located inside the front and rear adjacent limiting grooves and is used to limit the vertical position of the pin.

[0010] Furthermore, the moving component also includes a clearance groove, and the interior of each insertion platform is provided with a clearance groove corresponding to the adjacent front and rear limiting plates, for avoiding the limiting plates.

[0011] Furthermore, the moving component also includes a ring, which is rotatably connected to the front ends of the two rotating rods to facilitate driving the rotating rods to rotate.

[0012] Furthermore, the outer arc surface of the sliding column is provided with evenly distributed ball grooves, and the inside of each ball groove is rotatably connected with a rolling ball to reduce friction.

[0013] Furthermore, the bottom wall of the main truss on the left side is fixedly connected to a mounting bracket, which facilitates the installation of an external winch.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This movable stage truss support structure has the following advantages:

[0015] 1. By using the splicing plate and the semi-circular ring, the sliding columns of the secondary truss and the main truss can be initially positioned quickly. Then, with the help of the insertion platform, the insertion pin passes through the round hole and the insertion hole. Combined with the fixation of the limiting plate in the limiting groove, the secondary truss and the main truss can be stably connected with only simple insertion and rotation operations. This greatly simplifies the stage installation process, eliminates the need for complicated tools, and reduces the difficulty of stage installation.

[0016] 2. The rotating rods and connecting rods in the moving components work in conjunction with the internal threaded cylinders and threaded cylinders to cooperate with the external winch. By pulling the rotating rods through the winch, the semicircular rings and splicing plates can be moved along the sliding column, thereby easily adjusting the position of the secondary truss within the main truss and making the movement of the stage's secondary trusses more convenient. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram on the right side of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure on the left side of this utility model;

[0019] Figure 3 This is a partial structural diagram of the main truss on the left side of this utility model;

[0020] Figure 4 This is an enlarged structural schematic diagram of point A of this utility model;

[0021] Figure 5 This is a partial structural diagram of the movable component on the left side of this utility model;

[0022] Figure 6 This is a schematic diagram of a partial explosion of the movable component on the left side of this utility model.

[0023] In the diagram: 1 Main truss, 2 Moving component, 201 Splicing plate, 202 Insertion port, 203 Circular hole, 204 Strip opening, 205 Limiting groove, 206 Semi-circular ring, 207 Insertion platform, 208 Insertion hole, 209 Clearance groove, 210 Pin, 211 Limiting plate, 212 Rotating rod, 213 Connecting rod, 214 Internal threaded cylinder, 215 Threaded hole, 216 Circular ring, 3 Secondary truss, 4 Universal wheel, 5 Sliding column, 6 Ball groove, 7 Rolling ball. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-6 This embodiment provides a technical solution: a movable stage truss support structure, including a main truss 1 and a secondary truss 3. The secondary truss 3 is arranged between two main trusses 1. Sliding columns 5 are fixedly connected between the upper and lower inner walls of the main trusses 1. The lower ends of the main trusses 1 are fitted with casters 4 (all casters 4 are casters with foot brakes. Casters 4 are installed on the front left and right sides of the lower end of each main truss 1, and directional wheels with foot brakes are installed on the rear left and right sides of the lower end of each main truss 1). The bottom wall of the left side main truss 1 is fixedly connected with a mounting frame (the upper side of the mounting frame has bolt holes for installing an external winch). It also includes a moving component 2.

[0026] The movable component 2 includes splicing plates 201, sockets 202, semicircular rings 206, insertion platforms 207, rotating rods 212, connecting rods 213, internally threaded cylinders 214 and threaded cylinders 215. The splicing plates 201 are fixedly connected to the left and right ends of the secondary truss 3. The opposite outer surfaces of the two splicing plates 201 are provided with symmetrically distributed sockets 202. The front and rear ends of the opposite inner surfaces of the two semicircular rings 206 are fixedly connected with insertion platforms 207. The insertion platforms 207 are inserted into the horizontally adjacent sockets 202. The semicircular rings 206 and the horizontally adjacent splicing plates 201 are used in conjunction with the adjacent sliding columns 5. The movable component 2 also includes round holes 203, insertion holes 208 and pins 210. The round holes 203 are symmetrically opened on the upper sidewalls of the splicing plates 201. All are connected to the adjacent lower socket 202. All sockets 208 are located on the upper side of the insertion platform 207 and are coaxial with the adjacent upper circular hole 203. Pins 210 are inserted into the interior of the circular hole 203 and the adjacent lower socket 208. The moving component 2 also includes a strip opening 204, a limiting groove 205, and a limiting plate 211. The strip opening 204 is located at both the front and rear ends of the upper sidewall of the splicing plate 201 and the upper side of the insertion platform 207. Both the circular hole 203 and the socket 208 are connected to the horizontally adjacent strip opening 204. The limiting groove 205 is located at both the front and rear ends inside the splicing plate 201 and is connected to the adjacent front and rear sockets 202. The limiting plate 211 is fixedly connected to the lower side of the outer arc surface of the pin 210. All are located inside the adjacent limiting grooves 205. The moving component 2 also includes a clearance groove 209. The interior of the insertion platform 207 is provided with clearance grooves 209 corresponding to the adjacent limiting plates 211. The upper end of the sliding column 5 on the left is rotatably connected to a rotating rod 212. The rear end of the rotating rod 212 is rotatably connected to a connecting rod 213. The internal threaded cylinder 214 is rotatably connected to the upper end of the rotating rod 212. The threaded cylinder 215 is fixedly connected to the opposite outer arc surface of the semi-circular ring 206 on the left. The threaded cylinder 215 and the internal threaded cylinder 214 are used together (connected to the ring 216 by the anchor hook of the external winch steel cable). First, align the splicing plates 201 at both ends of the secondary truss 3 with the sliding column 5 inside the main truss 1, so that the arc-shaped opening of the splicing plate 201 fits against the outer arc surface of the sliding column 5. Next, fasten the two semicircular rings 206 to the outside of the sliding column 5, ensuring that the insertion platform 207 on the inner side of the semicircular ring 206 is accurately inserted into the insertion slot 202 on the opposite side of the splicing plate 201. This initially achieves the connection and positioning of the secondary truss 3 and the main truss 1, laying the foundation for subsequent fixing and adjustment. When the insertion platform 207 is fully inserted into the insertion slot 202, the circular hole 203 on the splicing plate 201 and the insertion hole 208 on the insertion platform 207 are coaxial. At this time, insert the pin 210 from the circular hole 203 until the lower end of the pin 210 extends into the insertion hole 208 (at this time, the limiting plate 211 at the lower end of the pin 210 passes through the adjacent strip opening 204 on the lower side). After the pin 210 is fully inserted, rotate the pin 210, causing the limiting plate 211 on the lower side of its outer arc surface to rotate synchronously.The limiting plate 211 is rotated out of the clearance groove 209 inside the insertion platform 207 and finally enters the limiting groove 205 inside the splicing plate 201. The limiting groove 205 forms a vertical limit on the limiting plate 211, and the pin 210, the round hole 203, and the insertion hole 208 form a horizontal limit, preventing the pin 210 from accidentally falling off during use, further reinforcing the connection between the insertion platform 207 and the insertion port 202, and ensuring the stable position of the splicing plate 201 and the semi-circular ring 206 on the sliding column 5. At this time, the semi-circular ring 206 and the splicing plate 201 encircle the adjacent sliding column 5. Then, the rotating rod 212 is rotated, and the rotation rod 21... 2. Adjust the position of the internal threaded cylinder 214 using the rear connecting rod 213, aligning it with the threaded cylinder 215 on the left side of the semicircular ring 206, which is opposite to the outer arc surface. Then, screw the external bolts into the internal threaded cylinder 214 and the corresponding threaded cylinder 215 in sequence. When it is necessary to move the entire stage truss support, release the foot brake of the universal wheel 4 at the lower end of the main truss 1, and push the main truss 1 to move it as a whole through the rolling of the universal wheel 4, which facilitates the adjustment of the stage truss position on the site. Then, operate the foot brake of the universal wheel 4 to lock the wheel. When it is necessary to move the secondary truss 3 up and down within the main truss 1... During movement, the mounting bracket fixed to the bottom wall of the main truss 1 has pre-drilled bolt holes for installing an external winch. When the position of the secondary truss 3 needs to be adjusted with the aid of the winch, the anchor hook of the winch cable is connected to the ring 216 at the front end of the rotating rod 212. The front end of the rotating rod 212 is pulled by the winch, causing the rotating rod 212 to rotate. The rear end of the rotating rod 212 pushes the connecting rod 213 upward. The connecting rod 213 pushes the left semi-circular ring 206 and the splicing plate 201 upward through the internally threaded cylinder 214 and threaded cylinder 215, which are internally connected with bolts. The evenly distributed ball grooves 6 on the outer arc surface of the sliding column 5 rotate and connect the rollers. As the secondary truss 3 moves along the sliding column 5, the ball 7 rolls in contact with the inner wall of the splicing plate 201 and the semi-circular ring 206, converting sliding friction into rolling friction. This significantly reduces movement resistance, making the adjustment of the secondary truss 3 easier and smoother. For disassembly, rotating the pin 210 allows the limiting plate 211 to return to the clearance groove 209. Pulling out the pin 210 (at this time, the limiting plate 211 passes through the slot 204) separates the semi-circular ring 206 from the splicing plate 201, allowing the main truss 1 and secondary truss 3 to be removed. This facilitates the movement of the secondary truss 3 between the main truss 1 and also facilitates the installation of the main truss 1 and secondary truss 3.

[0027] The working principle of the movable stage truss support structure provided by this utility model is as follows: First, align the splicing plates 201 at both ends of the secondary stage truss 3 with the sliding columns 5 inside the main truss 1, so that the arc-shaped opening of the splicing plate 201 fits against the outer arc surface of the sliding column 5. Then, fasten the two semi-circular rings 206 on the outside of the sliding column 5, ensuring that the inserts 207 on the inner side of the semi-circular rings 206 are accurately inserted into the inserts 202 on the opposite side of the splicing plate 201. This initially achieves the connection and positioning of the secondary stage truss 3 and the main truss 1, laying the foundation for subsequent stage fixing and adjustment. When the inserts 207 are fully inserted into the inserts 202, the circular holes 203 on the splicing plate 201 and the insertion holes 208 on the inserts 207 are coaxial. At this time, insert the pin 210 from the circular hole 203 until the pin is inserted. The lower end of pin 210 extends into the insertion hole 208 (at this time, the limiting plate 211 at the lower end of pin 210 passes through the adjacent strip opening 204 on the lower side). After pin 210 is fully inserted, rotate pin 210, causing the limiting plate 211 on the lower side of its outer arc surface to rotate synchronously, so that the limiting plate 211 rotates out of the clearance groove 209 inside the insertion platform 207 and finally enters the limiting groove 205 inside the splicing plate 201. The limiting groove 205 forms a vertical limit on the limiting plate 211, and the pin 210, the round hole 203 and the insertion hole 208 form a horizontal limit, preventing pin 210 from accidentally falling off during use, further reinforcing the connection between the insertion platform 207 and the insertion hole 202, and ensuring that the splicing plate 201 and the semi-circular ring 206 are in a stable position on the sliding column 5. At this time, the semi-circular ring 206 and the splicing plate 201 are in a stable position. 01. Encircle the adjacent sliding column 5, then rotate the rotating rod 212. Adjust the position of the internal threaded cylinder 214 through the connecting rod 213 at the rear end of the rotating rod 212, aligning it with the threaded cylinder 215 on the outer arc surface of the left semicircular ring 206. Then, screw the external bolts into the internal threaded cylinder 214 and the corresponding threaded cylinder 215 in sequence. When it is necessary to move the entire stage truss support, release the foot brake of the universal wheel 4 at the lower end of the main truss 1, and push the main truss 1 to move as a whole through the rolling of the universal wheel 4, which facilitates the adjustment of the position of the stage truss on the site. Then, operate the foot brake of the universal wheel 4 to lock the wheel of the universal wheel 4. When it is necessary to move the secondary truss 3 of the stage up and down within the main truss 1, the mounting bracket fixed to the bottom wall of the main truss 1 of the stage has reserved bolt holes. It can be used to install an external winch. When the secondary truss 3 needs to be adjusted with the aid of the winch, the anchor hook of the winch cable is connected to the ring 216 at the front end of the rotating rod 212. The front end of the rotating rod 212 is pulled by the winch, causing the rotating rod 212 to rotate. The rear end of the rotating rod 212 pushes the connecting rod 213 upward. The connecting rod 213 pushes the semi-circular ring 206 on the left and the splicing plate 201 upward through the internally threaded cylinder 214 and threaded cylinder 215, which are internally connected with bolts. The evenly distributed ball groove 6 on the outer arc surface of the sliding column 5 is rotatably connected to the rolling ball 7. When the secondary truss 3 moves along the sliding column 5, the rolling ball 7 rolls in contact with the inner wall of the splicing plate 201 and the semi-circular ring 206, converting sliding friction into rolling friction, greatly reducing the moving resistance, and making the adjustment of the secondary truss 3 of the stage easier and smoother.During disassembly, rotate pin 210 to return the limiting plate 211 to the clearance groove 209, pull out pin 210 (at this time, the limiting plate 211 passes through the strip opening 204), separate the semi-circular ring 206 from the splicing plate 201, and then dismantle the main truss 1 and secondary truss 3 of the stage.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A movable stage truss support structure, comprising a main truss (1) and a secondary truss (3), wherein the secondary truss (3) is disposed between two main trusses (1), and sliding columns (5) are fixedly connected between the upper and lower inner walls of the main trusses (1), and casters (4) are fitted to the lower ends of the main trusses (1), characterized in that: It also includes a mobile component (2); The moving component (2) includes a splicing plate (201), a socket (202), a semi-circular ring (206), a mounting plate (207), a rotating rod (212), a connecting rod (213), an internally threaded cylinder (214), and a threaded cylinder (215). The splicing plate (201) is fixedly connected to the left and right ends of the secondary truss (3). The opposite outer surfaces of the two splicing plates (201) are provided with symmetrically distributed sockets (202). The front and rear ends of the opposite inner surfaces of the two semi-circular rings (206) are fixedly connected with mounting plates (207). The mounting plates (207) are all... The semicircular ring (206) is inserted into the horizontally adjacent socket (202). The semicircular ring (206) and the horizontally adjacent splicing plate (201) are both used in conjunction with the adjacent sliding column (5). The upper end of the sliding column (5) on the left side is rotatably connected to the rotating rod (212). The rear end of the rotating rod (212) is rotatably connected to the connecting rod (213). The internal threaded cylinder (214) is rotatably connected to the upper end of the rotating rod (212). The threaded cylinder (215) is fixedly connected to the opposite outer arc surface of the semicircular ring (206) on the left side. The threaded cylinder (215) is used in conjunction with the internal threaded cylinder (214).

2. The movable stage truss support structure according to claim 1, characterized in that: The movable component (2) further includes a round hole (203), a socket (208), and a pin (210). The round holes (203) are symmetrically opened on the upper side wall of the splicing plate (201) and are all connected to the adjacent socket (202) on the lower side. The sockets (208) are all opened on the upper side of the insertion platform (207) and are all coaxial with the round holes (203) on the upper side. The pins (210) are respectively inserted between the round hole (203) and the adjacent socket (208) on the lower side.

3. The movable stage truss support structure according to claim 2, characterized in that: The moving component (2) further includes a strip opening (204), a limiting groove (205), and a limiting plate (211). The strip opening (204) is respectively opened at the front and rear ends of the upper side wall of the splicing plate (201) and the upper side of the insertion platform (207). The round hole (203) and the insertion hole (208) are connected to the horizontally adjacent strip opening (204). The limiting groove (205) is opened at the front and rear ends inside the splicing plate (201) and is connected to the front and rear adjacent insertion holes (202). The limiting plate (211) is fixedly connected to the lower side of the outer arc surface of the pin (210). The limiting plate (211) is located inside the front and rear adjacent limiting groove (205).

4. The movable stage truss support structure according to claim 3, characterized in that: The moving component (2) also includes a clearance groove (209), and the interior of each insertion platform (207) is provided with a clearance groove (209) corresponding to the adjacent front and rear limiting plates (211).

5. The movable stage truss support structure according to claim 1, characterized in that: The moving component (2) also includes a ring (216), which is rotatably connected to the front ends of two rotating rods (212).

6. The movable stage truss support structure according to claim 1, characterized in that: The outer arc surface of the sliding column (5) is provided with uniformly distributed ball grooves (6), and the inside of each ball groove (6) is rotatably connected with a ball (7).

7. The movable stage truss support structure according to claim 1, characterized in that: The bottom wall of the main truss (1) on the left side is fixedly connected to an installation bracket.

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