Stage truss

Abstract

The utility model discloses a stage truss which comprises a bottom frame, a connecting frame is in lap joint with the upper end of the bottom frame, a top frame is in lap joint with the upper end of the connecting frame, fixing grooves are formed in the upper ends of the bottom frame and the connecting frame, and fixing pins are connected to the upper sides of the front ends and the rear ends of the bottom frame and the connecting frame in a sliding mode. Connecting columns are fixedly installed at the lower ends of the connecting frame and the top frame, inserting grooves are formed in the sides, away from the central axis, of the connecting columns, limiting sleeves are slidably connected to the lower ends of the connecting frame and the top frame, storage grooves are formed in the lower sides of the front ends and the rear ends of the connecting frame and the top frame, and empty grooves are formed in the sides, away from the central axis, of the limiting sleeves. According to the stage truss, the stage truss can be disassembled and assembled in a segmented mode, transportation and carrying of the stage truss are facilitated, meanwhile, the installation structure is simple, connection and installation of the stage truss are facilitated, meanwhile, a plurality of connecting frames can be installed according to performance requirements, therefore, height adjustment of the stage truss is achieved, and the application range of the stage truss is widened.

Description

Technical Field

[0001] This utility model relates to the field of stage truss technology, and in particular to a stage truss. Background Technology

[0002] A truss is a structure made up of members connected to each other at both ends by hinges. A truss is a planar or spatial structure composed of straight members and generally has triangular units. The truss members mainly bear axial tension or compression, thus making full use of the strength of the material. When the span is large, it can save materials compared to solid beams, reduce self-weight and increase rigidity. Outdoor stages are often built using trusses.

[0003] Patent application CN202322726909.2 discloses a stage truss including a mounting base, a support frame, and crossbars. The support frame is mounted on the surface of the mounting base, and the crossbars are located at the top of the support frame. A support assembly is mounted at the bottom of the crossbars. The support assembly includes a mounting base, a strut, and a support seat. The mounting base is mounted on the lower surface of the crossbars, one end of the strut is mounted on the lower surface of the mounting base, and the other end of the strut is inserted into the surface of the support seat. After the truss is installed, the mounting base can transfer external forces to the struts. The struts receive the force and then transfer it to the support seats, which effectively alleviate the force. The struts effectively transfer the force and provide a point of force application for the crossbars. It is also less prone to tilting or collapse in severe weather or external impacts, demonstrating good performance and improving the safety of the audience.

[0004] Compared with the stage trusses in the above documents, the support frame is installed on the mounting base, the length of the support frame is relatively fixed, the transportation of the stage truss is more troublesome, and the height of the stage truss is not easy to adjust, thus its application range is narrow. Utility Model Content

[0005] This utility model discloses a stage truss, which aims to solve the technical problems of the fixed length of the support frame, the cumbersome transportation of the stage truss, the inconvenience of adjusting the height of the stage truss, and the narrow range of applications.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A stage truss includes a base frame, a connecting frame attached to the upper end of the base frame, and a top frame attached to the upper end of the connecting frame. Both the base frame and the connecting frame have fixing slots at their upper ends. The upper front and rear ends of the base frame and the connecting frame are slidably connected to fixing pins. The lower ends of the connecting frame and the top frame are fixedly installed with connecting columns. Each connecting column has a slot on its side away from the central axis. The lower ends of the connecting frame and the top frame are slidably connected to limiting sleeves. The lower front and rear ends of the connecting frame and the top frame have storage slots. The limiting sleeve has an empty slot on its side away from the central axis.

[0008] By setting up the base frame and connecting frames, the installation and disassembly of the stage truss are not only facilitated, but also several connecting frames can be installed on the base frame according to the needs of the performance, thereby adjusting the stage truss to a suitable height. The cooperation of fixing pins and limiting sleeves improves the stability of the connection between the stage truss structures, thereby improving the safety of the stage truss.

[0009] In a preferred embodiment, a fixing plate is snapped between the base frame and the top frame. A support plate is fixedly installed at the rear end of the base frame. A snap-fit ​​plate is fixedly installed on the side of the base frame and the top frame near the central axis. A connecting groove is opened at the front end of the snap-fit ​​plate. Mounting grooves are opened on the left and right sides of the fixing plate. A through groove is opened inside the mounting groove. A rotating door is rotatably connected to the rear end of the fixing plate. A handle is fixedly installed on the right side of the rear end of the rotating door. A locking element is rotatably connected to the rear end of the fixing plate to the right side of the handle.

[0010] By setting up the card slot and the mounting groove, the installation of the fixing plate is facilitated, and the stability of the fixing plate installation is improved. This enhances the stability of the stage truss during use. At the same time, the counterweight can be filled into the fixing plate through the rotating door, thereby increasing the weight of the fixing plate and making it easier to lower the center of gravity of the stage truss, thus improving the stability of the stage truss.

[0011] In a preferred embodiment, the support plate has a groove at its upper end, and limit grooves are formed at the left and right ends of the groove. A slider is slidably connected inside the groove. A receiving plate is fixedly installed on the front side of the upper end of the slider. A locking nut is rotatably connected to the rear side of the front end of the slider. A connecting rod is rotatably connected to the upper end of the receiving plate. A connecting plate is fixedly installed between the connecting rods. A locking member is rotatably connected to the front end of the connecting rod. A fastening nut is rotatably connected to the side of the locking member away from the central axis. A push plate is rotatably connected to the lower end of the locking nut. A rubber pad is adhered to the lower end of the push plate. Limit blocks are fixedly installed on the left and right sides of the slider.

[0012] By setting up the cooperation between the slider and the slide rail, it is easy to adjust the position of the rear support point according to the height of the stage truss, thereby improving the effect of the rear support of the stage truss and preventing the stage truss from tilting. At the same time, the cooperation between the locking nut and the push plate makes it easy to lock the slider, improving the stability of the slider when locked, thereby improving the stability of the stage truss.

[0013] As can be seen from the above, the stage truss provided by this utility model can be disassembled and installed in sections, which facilitates the transportation and carrying of the stage truss. At the same time, the installation structure is simple, which facilitates the connection and installation of the stage truss. In addition, multiple connecting frames can be installed according to the needs of the performance to realize the height adjustment of the stage truss. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a stage truss proposed in this utility model.

[0015] Figure 2 This is a three-dimensional structural diagram of the base frame and top frame of a stage truss proposed in this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of a stage truss fixing frame proposed in this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of a support plate for a stage truss proposed in this utility model.

[0018] Figure 5 This is a schematic diagram of the cross-sectional structure of the support plate of a stage truss proposed in this utility model.

[0019] Figure 6 This is a three-dimensional structural diagram of the base frame and connecting frame of a stage truss proposed in this utility model.

[0020] Figure 7 This is a three-dimensional structural diagram of the connecting frame and top frame of a stage truss proposed in this utility model.

[0021] In the attached diagram: 1. Base frame; 2. Connecting frame; 3. Top frame; 4. Fixing plate; 5. Support plate; 6. Snap-fit ​​plate; 7. Connecting groove; 8. Mounting groove; 9. Through groove; 10. Rotating door; 11. Handle; 12. Locking element; 13. Slide groove; 14. Limiting groove; 15. Sliding block; 16. Supporting plate; 17. Locking nut; 18. Connecting rod; 19. Connecting plate; 20. Snap-fit ​​element; 21. Fastening nut; 22. Limiting block; 23. Push plate; 24. Rubber pad; 25. Fixing groove; 26. Fixing pin; 27. Connecting column; 28. Slot; 29. ​​Limiting sleeve; 30. Storage groove; 31. Empty groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] The stage truss disclosed in this utility model is mainly used in scenarios where the length of the support frame is relatively fixed, the transportation of the stage truss is relatively troublesome, and the height of the stage truss is not easy to adjust, thus limiting its applicability.

[0025] Reference Figure 1 , Figure 6 and Figure 7 A stage truss includes a base frame 1, a connecting frame 2 attached to the upper end of the base frame 1, and a top frame 3 attached to the upper end of the connecting frame 2. Both the base frame 1 and the connecting frame 2 have fixing slots 25 at their upper ends. The base frame 1 and the connecting frame 2 are slidably connected to the upper front and rear ends of the upper sides by fixing pins 26. The connecting frame 2 and the top frame 3 are fixedly installed with connecting columns 27 at their lower ends. The connecting columns 27 have slots 28 on the side away from the central axis. The connecting frame 2 and the top frame 3 are slidably connected with limiting sleeves 29 at their lower ends. The connecting frame 2 and the top frame 3 have storage slots 30 on the lower front and rear ends of the lower sides. The limiting sleeves 29 have empty slots 31 on the side away from the central axis.

[0026] In this embodiment, when installing the stage truss, the connecting column 27 on the connecting frame 2 is aligned with the fixing slot 25 at the upper end of the base frame 1. The connecting column 27 is inserted into the fixing slot 25, and the fixing pin 26 is inserted into the slot 28 on the connecting column 27, thereby locking the connecting column 27 and the fixing slot 25 to prevent the connecting frame 2 from detaching after installation, improving the safety of the stage truss during use. Subsequently, the limiting sleeve 29 is slid down to cover the fixing pin 26, preventing the fixing pin 26 from falling off due to vibration during use of the stage truss, thus affecting the overall stability of the stage truss. Multiple connecting frames 2 can be installed on the connecting frame 2 to facilitate adjustment of the stage truss height according to the needs of the actual performance. After the connecting frame 2 is installed, the top frame 3 is aligned with the connecting frame 2 and installed, and locked with the fixing pin 26. After the stage truss is used, the limiting sleeve 29 can be slid up so that the empty slot 31 on the limiting sleeve 29 is aligned with the storage slot 30, and the fixing pin 26 is inserted into the storage slot 30. This not only makes it easy to fix the limiting sleeve 29, but also allows the fixing pin 26 to be placed in the storage slot 30, which facilitates the transportation and storage of the stage truss and avoids the loss of the limiting sleeve 29 and the fixing pin 26. At the same time, the stage truss can be disassembled in sections, which is convenient for the transportation and carrying of the stage truss. The installation structure is simple and easy to connect and install the stage truss. Multiple connecting frames 2 can be installed according to the needs of the performance to realize the height adjustment of the stage truss.

[0027] Reference Figure 1 , Figure 2 and Figure 3 In a preferred embodiment, a fixing plate 4 is snapped between the base frame 1 and the top frame 3. A support plate 5 is fixedly installed at the rear end of the base frame 1. A snap-fit ​​plate 6 is fixedly installed on the side of the base frame 1 and the top frame 3 near the central axis. A connecting groove 7 is opened at the front end of the snap-fit ​​plate 6. An installation groove 8 is opened on the left and right sides of the fixing plate 4. A through groove 9 is opened inside the installation groove 8. A rotating door 10 is rotatably connected to the rear end of the fixing plate 4. A handle 11 is fixedly installed on the right side of the rear end of the rotating door 10. A locking member 12 is rotatably connected to the rear end of the fixing plate 4 on the right side of the handle 11.

[0028] In this embodiment: the mounting groove 8 on the fixing plate 4 is aligned with the snap-fit ​​plate 6 and inserted, and the connecting groove 7 is aligned with the through groove 9. The nut is inserted into the through groove 9 to fix the fixing plate 4 between the base frame 1 and the top frame 3, thereby improving the structural strength of the stage truss. Then, the locking member 12 can be rotated to release the restriction on the handle 11, making it easier to rotate the rotating door 10. Then, counterweights are filled into the fixing plate 4 that is in contact with the ground to improve the overall stability of the stage truss and prevent the stage truss from tipping over. After filling, the rotating door 10 can be reset and the handle 11 can be locked by the locking member 12 to prevent the rotating door 10 from shaking when the stage truss is in use.

[0029] Reference Figure 1, Figure 4 and Figure 5 In a preferred embodiment, the upper end of the support plate 5 is provided with a sliding groove 13, and the left and right ends of the sliding groove 13 are provided with limiting grooves 14. A slider 15 is slidably connected inside the sliding groove 13. A receiving plate 16 is fixedly installed on the front side of the upper end of the slider 15. A locking nut 17 is rotatably connected to the rear side of the front end of the slider 15. A connecting rod 18 is rotatably connected to the upper end of the receiving plate 16. A connecting plate 19 is fixedly installed between the connecting rods 18. A locking member 20 is rotatably connected to the front end of the connecting rod 18. A fastening nut 21 is rotatably connected to the side of the locking member 20 away from the central axis. A push plate 23 is rotatably connected to the lower end of the locking nut 17. A rubber pad 24 is adhered to the lower end of the push plate 23. Limiting blocks 22 are fixedly installed on the left and right sides of the slider 15.

[0030] In this embodiment: When it is necessary to adjust the support points of the stage truss, loosen the locking nut 17 to drive the push plate 23 to slide upward, thereby causing the rubber pad 24 to disengage from the slide groove 13, allowing the slider 15 to slide freely. When the slider 15 slides within the slide groove 13, the support plate 16 on the slider 15 will also slide along with it. After sliding the slider 15 to the appropriate position, tighten the locking nut 17 to cause the push plate 23 to slide downward, causing the rubber pad 24 to engage with the slide groove 13, restricting the sliding of the slider 15. Rotate the connecting rod 18. The connecting plate 19 between the connecting rods 18 not only improves the structural strength of the connecting rod 18, but also makes it easier to make the support points on both sides of the connecting rod 18 consistent, so that the locking part 20 is tightly attached to the connecting frame 2, and the locking part 20 is fixed to the connecting frame 2 by the fastening nut 21, preventing the stage truss from tilting backward. At the same time, when the height of the stage truss is adjusted, the angle of the connecting rod 18 can be adjusted according to the height of the stage truss, thereby adjusting the position of the support points at the rear of the stage truss and improving the stability of the stage truss.

[0031] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A stage truss comprising a base frame (1), characterized in that, The bottom frame (1) upper end lap has a connecting frame (2), the connecting frame (2) upper end lap has a top frame (3), the bottom frame (1) and the connecting frame (2) upper end are all provided with fixed slots (25), the bottom frame (1) and the connecting frame (2) front and rear end upper side are all slidably connected with fixed pins (26), the connecting frame (2) and the top frame (3) lower end are all fixedly installed with connecting columns (27), the connecting column (27) is away from the side of the middle axis line and is provided with a slot (28), the connecting frame (2) and the top frame (3) lower end are slidably connected with a limiting sleeve (29), the connecting frame (2) and the top frame (3) front and rear end lower side are provided with receiving grooves (30), the limiting sleeve (29) is away from the side of the middle axis line and is provided with a slot (31).

2. A stage truss according to claim 1, wherein, The bottom frame (1) between and the top frame (3) between are all clamped with fixed plates (4), the bottom frame (1) rear end is fixedly installed with a support plate (5).

3. A stage truss according to claim 2, wherein, The bottom frame (1) and the top frame (3) are fixedly installed with clamping plates (6) on the side close to the middle axis line, the clamping plate (6) front end is provided with a connecting groove (7), the fixed plate (4) left and right sides are provided with mounting grooves (8), the mounting groove (8) is internally provided with a through groove (9).

4. A stage truss according to claim 3, wherein, The fixed plate (4) rear end is rotatably connected with a rotating door (10), the rotating door (10) rear end right side is fixedly installed with a handle (11), the fixed plate (4) rear end is rotatably connected with a locking piece (12) on the right side of the handle (11).

5. A stage truss according to claim 2, wherein, The support plate (5) upper end is provided with a sliding groove (13), the sliding groove (13) inside left and right ends are provided with limiting grooves (14), the sliding groove (13) inside is slidably connected with a sliding block (15), the sliding block (15) upper end front side is fixedly installed with a receiving plate (16).

6. A stage truss according to claim 5, wherein, The sliding block (15) front end rear side is rotatably connected with a locking nut (17), the receiving plate (16) upper end is rotatably connected with a connecting rod (18), the connecting rod (18) between is fixedly installed with a connecting plate (19), the connecting rod (18) front end is rotatably connected with a clamping piece (20).

7. A stage truss according to claim 6, wherein, The clamping piece (20) is rotatably connected with a fastening nut (21) on the side away from the middle axis line, the locking nut (17) lower end is rotatably connected with a push plate (23), the push plate (23) lower end is bonded with a rubber pad (24), the sliding block (15) left and right sides are fixedly installed with limiting blocks (22).

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