A combined truss convenient to disassemble

Abstract

The present application relates to the technical field of combined truss, especially to a combined truss convenient to disassemble and use.The present application provides a combined truss convenient to disassemble and use which can quickly assemble and disassemble trusses.The combined truss convenient to disassemble and use comprises a truss body, a clamping mechanism provided on the truss body, and a connecting mechanism provided on the truss body.The air in the second air cylinder is extruded into the first air cylinder by moving the clamping block inward to make the piston rod in the first air cylinder drive the moving plate frame and the inclined block to move upward and be clamped into the clamping plate, so that the assembly of two truss bodies is completed, which is convenient to assemble and disassemble.The inclined block is extruded inward to be separated from the clamping plate, and then the clamping block is controlled to move outward to be separated from the connecting block, so that the disassembly is completed, which is convenient and fast.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of combined truss, in particular to a combined truss convenient to disassemble and use. BACKGROUND

[0002] At present, in the exhibition industry, the exhibition stands and stages are relatively large occasions, and the truss structure is used in the exhibition stands and stages. The truss is generally composed of straight rods with triangular units in plane or space structure, which can reduce the weight, facilitate the construction of the staff, increase the rigidity, ensure the firmness and stability after construction, and ensure the safety of the exhibition stand after construction. The truss is generally connected vertically or horizontally, and the connection of the trusses is mostly at the port of the truss. In the prior art, the trusses are connected by welding, which is difficult to disassemble after connection. Generally, the hand-operated hoist is used to forcibly disassemble, which can easily damage the truss during disassembly, thereby affecting the next use. In addition, the hand-operated hoist needs to be operated manually, which is laborious to disassemble.

[0003] In view of the above, it is necessary to develop a combined truss convenient to disassemble and use, which can quickly assemble and disassemble the trusses. SUMMARY

[0004] In order to overcome the defects that the connection between the trusses in the prior art is generally welded, which is difficult to disassemble and time-consuming and laborious, and in view of the deficiencies of the prior art, the present application provides a combined truss convenient to disassemble and use, which can quickly assemble and disassemble the trusses.

[0005] To achieve the above purpose, the present application is realized by the following scheme: a combined truss convenient to disassemble and use, comprising:

[0006] A truss body;

[0007] A clamping mechanism provided on the truss body for clamping and fixing two truss bodies;

[0008] A connecting mechanism provided on the truss body for improving stability.

[0009] As a preferred, the clamping mechanism comprises:

[0010] A lead screw, the left and right sides of the upper part of the truss body are slidably connected with lead screws;

[0011] A prismatic shaft sleeve, the lead screws on the left side and the lead screws on the right side are threadedly connected with prismatic shaft sleeves;

[0012] A clamping block, each lead screw is rotatably connected with a clamping block, and the clamping block is L-shaped;

[0013] The connecting block is L-shaped, and the clamping block is moved inward to clamp the connecting block, thereby clamping and fixing the truss body.

[0014] Preferably, the connecting mechanism comprises:

[0015] The support frame is connected to the upper middle part of the truss body.

[0016] The moving plate frame is slidingly connected between the rear support frames and the front support frames.

[0017] The inclined block is slidingly connected to the left and right sides of the moving plate frame, and the bottom of the inclined block is connected to the L-shaped unlocking block.

[0018] The first spring is sleeved on the upper left and right sides of the moving plate frame, and the two ends of the first spring are connected to the inclined block and the moving plate frame, respectively.

[0019] The first air cylinder is connected to the upper middle part of the truss body, and the top of the piston rod of the front first air cylinder and the top of the piston rod of the rear first air cylinder are connected to the bottom of the adjacent moving plate frame.

[0020] The second air cylinder is connected to the upper left and right sides of the truss body.

[0021] The first pressure plate is connected to the top of the piston rod of each second air cylinder.

[0022] The first telescopic rod is connected between the bottom of each first pressure plate and the truss body, and a spring is sleeved on each first telescopic rod.

[0023] The gas guide pipe is connected between the lower part of the rear first air cylinder and the lower part of the rear second air cylinder, and the gas guide pipe is connected between the lower part of the front first air cylinder and the lower part of the front second air cylinder.

[0024] The clamping plate is connected to the lower front and rear sides of the truss body, and the inclined block is moved upward by the moving plate frame to the clamping plate on the other truss body, thereby clamping and fixing the truss body.

[0025] Preferably, the limiting mechanism for clamping the rectangular shaft sleeve is also included, and the limiting mechanism comprises:

[0026] The second telescopic rod is connected to the upper left and right sides of the truss body.

[0027] The limiting frame is connected to the inner side of the left second telescopic rod and the inner side of the right second telescopic rod for clamping the rectangular shaft sleeve.

[0028] Second spring, each second telescopic rod is sleeved with a second spring, and two ends of the second spring are connected with the second telescopic rod and the limiting frame respectively.

[0029] As preferred, the internal shape of the limiting frame is consistent with the prismatic shaft sleeve.

[0030] As preferred, it further comprises a release mechanism for driving the inclined block to move automatically inward, and the release mechanism comprises:

[0031] Supporting block, two groups of supporting blocks are connected to the upper front and rear sides of the truss body;

[0032] Jacking rod, a jacking rod is slidingly connected in each group of supporting blocks, and the outer side of each jacking rod is inclined;

[0033] Top frame, a top frame is connected to each lead screw, and the outward movement of the top frame extrudes the adjacent jacking rod to move inward, thereby driving the jacking rod to extrude the inclined block and move automatically inward to be unlocked.

[0034] As preferred, it further comprises a reinforcing mechanism for reinforcing the two truss bodies, and the reinforcing mechanism comprises:

[0035] Threaded sleeve, a threaded sleeve is connected to the upper part of the truss body, and the threaded sleeves are located at the four corners of the truss body;

[0036] Mounting frame, a mounting frame is connected to the middle part of the truss body;

[0037] Rotating rod, a rotating rod is placed in each mounting frame;

[0038] Threaded rod, a threaded rod is connected to the bottom of each rotating rod, and the downward movement of the threaded rod is threadedly connected with the threaded sleeve on the other truss body, thereby reinforcing the truss body;

[0039] Tension spring, a tension spring is connected to the upper part of each rotating rod, and the top end of each tension spring is in contact with the adjacent mounting frame.

[0040] As preferred, it further comprises a connection enhancement mechanism for enhancing the stability between the two truss bodies, and the connection enhancement mechanism comprises:

[0041] Guide frame, a guide frame is connected to the left and right sides of the upper part of the truss body;

[0042] Second pressing plate, a second pressing plate is rotatably connected to the left and right sides of the upper part of the truss body;

[0043] Pulling rope, a pulling rope is connected to the outer side of each top frame, and each pulling rope is connected with the bottom of the adjacent second pressing plate through the adjacent guide frame;

[0044] Arc-shaped connecting plates, the upper part of the truss body is slidably connected with arc-shaped connecting plates on the left and right sides, which are used to enhance the stability between the two truss bodies, and the lower part of the truss body is provided with limiting grooves on the left and right sides;

[0045] Moving frames, the upper part of the truss body is slidably connected with moving frames on the left and right sides;

[0046] Swing rods, the moving frames are rotatably connected with swing rods on the upper part, which are used to drive the rotation of the arc-shaped connecting plates, and the lower part of the swing rod is rotatably connected with the lower part of the arc-shaped connecting plate;

[0047] Third springs, the upper part of the truss body is sleeved with third springs on the left and right sides close to the moving frames, and the two ends of the third spring are connected with the truss body and the moving frame, respectively.

[0048] The present application has at least one of the following advantages: the card block can be clamped with the connecting block by moving inward, the air in the second air cylinder is extruded into the first air cylinder, so that the piston rod in the first air cylinder drives the moving plate frame and the inclined block to move upward and clamp into the clamping plate, thereby completing the assembly of the two truss bodies, which is convenient to assemble and disassemble; under the reset action of the second spring, the limit frame moves inward to limit the prismatic shaft sleeve, thereby avoiding loosening of the prismatic shaft sleeve due to external factors, thereby affecting the stability between the two truss bodies; the inclined block moves inward by extruding the top frame to complete automatic unlocking, which is convenient for workers to assemble and disassemble the truss body, so that workers do not need to manually extrude the L-shaped unlocking block at the lower part of the inclined block, thereby reducing the operation trouble; by rotating the rotating rod, the threaded rod on the other truss body is threadedly connected with the threaded sleeve on the truss body, thereby fixing the four corners between the two truss bodies, thereby further improving the stability between the two truss bodies; the arc-shaped connecting plate is clamped into the limiting groove on the other truss body by rotating upward, thereby further improving the stability between the two truss bodies, and the safety performance is increased. BRIEF DESCRIPTION OF DRAWINGS

[0049] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application.

[0050] Figure 2 It is a schematic diagram of the three-dimensional structure of the clamping mechanism of the present application.

[0051] Figure 3 It is a schematic diagram of the three-dimensional structure of the clamping mechanism of the present application.

[0052] Figure 4 It is a schematic diagram of the first part of the connecting mechanism of the present application.

[0053] Figure 5 Fig. 2 is a second partial perspective view of the connection mechanism of the present application.

[0054] Figure 6 Fig. 3 is a cross-sectional view of the connection mechanism of the present application.

[0055] Figure 7 Fig. 4 is a third partial perspective view of the connection mechanism of the present application.

[0056] Figure 8 Fig. 5 is a first partial perspective view of the limiting mechanism of the present application.

[0057] Figure 9 Fig. 6 is a second partial perspective view of the limiting mechanism of the present application.

[0058] Figure 10 Fig. 7 is a first partial perspective view of the releasing mechanism of the present application.

[0059] Figure 11 Fig. 8 is a second partial perspective view of the releasing mechanism of the present application.

[0060] Figure 12 Fig. 9 is a first partial perspective view of the reinforcing mechanism of the present application.

[0061] Figure 13 Fig. 10 is a second partial perspective view of the reinforcing mechanism of the present application.

[0062] Figure 14 Fig. 11 is a first partial perspective view of the connection enhancing mechanism of the present application.

[0063] Figure 15 Fig. 12 is a second partial perspective view of the connection enhancing mechanism of the present application.

[0064] Figure 16 Fig. 13 is a third partial perspective view of the connection enhancing mechanism of the present application.

[0065] Figure 17 Fig. 14 is a cross-sectional view of the connection enhancing mechanism of the present application.

[0066] Explanation of reference signs: 1_truss body, 2_clamping mechanism, 21_prism shaft sleeve, 22_screw rod, 23_clamping block, 24_connection block, 3_connection mechanism, 31_support frame, 32_moving plate frame, 33_inclined block, 34_first spring, 35_first air cylinder, 36_first pressing plate, 37_second air cylinder, 38_air guide pipe, 39_clamping plate, 310_first telescopic rod, 4_limiting mechanism, 41_second telescopic rod, 42_limiting frame, 43_second spring, 5_releasing mechanism, 51_jacking rod, 52_jacking frame, 53_supporting block, 6_reinforcing mechanism, 61_threaded sleeve, 62_turning rod, 63_mounting frame, 64_tension spring, 65_threaded rod, 7_connection reinforcing mechanism, 71_pull rope, 72_guiding frame, 73_second pressing plate, 74_arc-shaped connecting plate, 75_oscillating rod, 76_moving frame, 77_third spring. DETAILED DESCRIPTION

[0067] The following description is merely exemplary of the present application and is not intended to limit the scope of the application.

[0068] Example 1

[0069] A combined truss convenient to disassemble and use, please refer to Figures 1-7The utility model relates to a kind of double truss body, including truss body 1, clamping mechanism 2 and connecting mechanism 3, truss body 1 is equipped with clamping mechanism 2, clamping mechanism 2 is used to be clamped and fixed to two truss body 1, truss body 1 is equipped with connecting mechanism 3, connecting mechanism 3 is used to improve stability, clamping mechanism 2 includes prism shaft sleeve 21, screw rod 22, clamping block 23 and connecting block 24, truss body 1 inside upper portion left and right sides are slidably connected with two screw rods 22, and the left side of two screw rods 22 between and the right side of two screw rods 22 between are threadedly connected with prism shaft sleeve 21, the outside of each screw rod 22 is rotatably connected with clamping block 23, clamping block 23 is L-shaped, truss body 1 lower portion left and right sides are fixedly connected with two connecting blocks 24, and connecting block 24 is L-shaped, connecting mechanism 3 includes support frame 31, moving plate frame 32, inclined block 33, first spring 34, first air cylinder 35, first pressing plate 36, second air cylinder 37, air guide pipe 38, clamping plate 39 and first telescopic rod 310, truss body 1 inside upper portion middle front and back sides are fixedly connected with two support frames 31, and the back side of two support frames 31 between and the front side of two support frames 31 between are slidably connected with moving plate frame 32, the left and right sides of two moving plate frames 32 inside are slidably connected with inclined block 33, and the bottom of two inclined blocks 33 is connected with L-shaped unlocking block, and the upper portion of two moving plate frames 32 is sleeved with two first springs 34, and the two ends of first spring 34 are connected with inclined block 33 and moving plate frame 32 respectively, truss body 1 inside upper portion middle front and back sides are fixedly connected with two first air cylinders 35, and the top of the piston rod of the front side of two first air cylinders 35 and the top of the piston rod of the back side of two first air cylinders 35 are connected with the bottom of similar moving plate frame 32, truss body 1 inside upper portion left and right sides are fixedly connected with two second air cylinders 37, and the top of the piston rod of each second air cylinder 37 is fixedly connected with first pressing plate 36, and the bottom of each first pressing plate 36 is connected with two first telescopic rods 310 between truss body 1, and the spring is sleeved on each first telescopic rod 310, and the lower portion of the back side of two first air cylinders 35 is communicated with the lower portion of the back side of two second air cylinders 37 with air guide pipe 38 respectively, and the lower portion of the front side of two first air cylinders 35 is communicated with the lower portion of the front side of two second air cylinders 37 with air guide pipe 38 respectively, truss body 1 inside lower portion front and back sides are fixedly connected with clamping plate 39, and clamping plate 39 is used to further be clamped and fixed to two truss body 1.

[0070] When in use, the staff rotates the prismatic shaft sleeve 21 manually, so that the lead screw 22 moves outward, the clamping block 23 moves outward, then another truss body 1 is placed on the top of the truss body 1, so that the connecting block 24 on the other truss body 1 presses the first pressing plate 36 on the truss body 1, the first telescopic rod 310 and the spring thereon are compressed, at the same time, the first pressing plate 36 moves downward, the piston rod of the second air cylinder 37 moves downward, so that the air in the second air cylinder 37 is extruded into the first air cylinder 35 through the air guide pipe 38, the piston rod in the first air cylinder 35 is lifted, so as to push the moving plate frame 32 to move upward, the inclined block 33 moves upward into the clamping plate 39 on the other truss body 1, the inclined block 33 is extruded, the first spring 34 is compressed, when the inclined block 33 enters the inside of the clamping plate 39, the first spring 34 resets, the inclined block 33 moves outward to clamp the clamping plate 39, then the prismatic shaft sleeve 21 is reversed, the lead screw 22 reverses to move inward to reset, so as to drive the clamping block 23 to move inward to reset, because the clamping block 23 and the connecting block 24 are both L-shaped, the clamping block 23 can clamp the connecting block 24, in this way, the two truss bodies 1 can be fixed, the installation is more convenient and fast, when disassembling, the prismatic shaft sleeve 21 is rotated again, so that the lead screw 22 drives the clamping block 23 to move outward and no longer clamps the connecting block 24, then the L-shaped unlocking block on the inclined block 33 is manually extruded to move inward, the inclined block 33 moves inward and no longer clamps the clamping plate 39, then the truss body 1 is disassembled, then the L-shaped unlocking block on the inclined block 33 is released, the first spring 34 drives the inclined block 33 to move outward to reset, the spring on the first telescopic rod 310 resets, drives the first pressing plate 36 to move upward to reset, drives the piston rod in the second air cylinder 37 to move upward to reset, and the air in the first air cylinder 35 is sucked back into the second air cylinder 37 through the air guide pipe 38, the piston rod in the first air cylinder 35 moves downward to reset, the moving plate frame 32 drives the inclined block 33 to move downward to reset, in this way, the disassembling work between the two truss bodies 1 can be completed, the efficiency is higher and the operation is simple and convenient.

[0071] Example 2

[0072] Based on example 1, please refer to Figure 1 , Figure 8 and Figure 9Further comprising a limiting mechanism 4 for clamping the prismatic shaft sleeve 21, the limiting mechanism 4 comprises a second telescopic rod 41, a limiting frame 42 and a second spring 43, two second telescopic rods 41 are fixedly connected to the upper left and right sides of the truss body 1, the inner sides of the two second telescopic rods 41 on the left and the inner sides of the two second telescopic rods 41 on the right are fixedly connected with the limiting frame 42, the limiting frame 42 is used for clamping the prismatic shaft sleeve 21, the internal shape of the limiting frame 42 is consistent with that of the prismatic shaft sleeve 21, and each second telescopic rod 41 is sleeved with a second spring 43, and the two ends of the second spring 43 are connected with the second telescopic rod 41 and the limiting frame 42 respectively. When the staff rotates the prismatic shaft sleeve 21, the limiting frame 42 is manually pushed outward, the second telescopic rod 41 and the second spring 43 are compressed, then the prismatic shaft sleeve 21 is rotated, after the end, the limiting frame 42 is released, the second spring 43 is reset, the second telescopic rod 41 is elongated and reset, so as to drive the limiting frame 42 to move inward and contact with the prismatic shaft sleeve 21. Since the internal shape of the limiting frame 42 is consistent with that of the prismatic shaft sleeve 21, the limiting frame 42 can clamp the prismatic shaft sleeve 21, so as to avoid loosening of the prismatic shaft sleeve 21 due to external factors, thereby affecting the stability between the two truss bodies 1.

[0073] Please refer to Figure 1 、 Figure 10 and Figure 11 Further comprising a release mechanism 5 for driving the inclined block 33 to automatically move inward, the release mechanism 5 comprises a top rod 51, a top frame 52 and a support block 53, two groups of support blocks 53 are fixedly connected to the upper front and rear sides of the truss body 1, each two support blocks 53 form a group, each group of support blocks 53 is slidingly connected with a top rod 51, each top rod 51 is inclined on the outer side, and each screw rod 22 is fixedly connected with a top frame 52. When the screw rod 22 moves outward, the top frame 52 moves outward, since the outer side of the top rod 51 is inclined, when the top frame 52 moves outward to contact with the top rod 51, the top frame 52 extrudes the top rod 51 to move inward and extrude the L-shaped unlocking block at the lower part of the inclined block 33, so as to drive the inclined block 33 to move inward and complete automatic unlocking, which facilitates the staff to assemble and disassemble the truss body 1, so that the staff does not need to manually extrude the L-shaped unlocking block at the lower part of the inclined block 33, thereby reducing the operation trouble, when the screw rod 22 moves inward and resets, the top frame 52 moves inward and resets, and the L-shaped unlocking block moves outward under the resetting action of the first spring 34 and pushes the top rod 51 to move outward and reset.

[0074] Please refer to Figure 1 、 Figure 12 and Figure 13It also comprises reinforcing mechanism 6, which is used for reinforcing two truss bodies 1. Reinforcing mechanism 6 comprises threaded sleeve 61, rotating rod 62, mounting frame 63, tension spring 64 and threaded rod 65. Threaded sleeve 61 is fixed on the upper left front side of truss body 1. Threaded sleeve 61 is fixed on the upper left rear side of truss body 1. Threaded sleeve 61 is fixed on the upper right front side of truss body 1. Threaded sleeve 61 is fixed on the upper right rear side of truss body 1. Four mounting frames 63 are fixed on the middle part of truss body 1. Rotating rod 62 is placed in each mounting frame 63. Threaded rod 65 is fixed on the bottom of each rotating rod 62. Threaded rod 65 is used for reinforcing two truss bodies 1. Tension spring 64 is connected to the upper part of each rotating rod 62. The top end of each tension spring 64 is in contact with the adjacent mounting frame 63. When another truss body 1 is installed on the top of the truss body 1, the threaded rod 65 on another truss body 1 is in contact with threaded sleeve 61 on the truss body 1. The threaded rod 65 on another truss body 1 is lifted up, which drives the corresponding rotating rod 62 to move upwards, and the corresponding tension spring 64 is compressed. Then the staff manually rotates the rotating rod 62 on another truss body 1. Under the reset action of tension spring 64, the rotating rod 62 drives the threaded rod 65 to move downwards, so that the threaded rod 65 on another truss body 1 is threadedly connected with threaded sleeve 61 on the truss body 1. In this way, the four corners between two truss bodies 1 can be fixed, thereby further improving the stability between two truss bodies 1. When disassembling, reverse the rotating rod 62, so that the threaded rod 65 moves upwards and separates from the threaded sleeve 61.

[0075] Please refer to Figure 1 、 Figure 7 、 Figure 14 、 Figure 15 、 Figure 16 and Figure 17Further comprising a connection reinforcing mechanism 7 for reinforcing the stability between the two truss bodies 1, the connection reinforcing mechanism 7 comprises a pull rope 71, a guide frame 72, a second pressing plate 73, an arc-shaped connecting plate 74, a swing lever 75, a moving frame 76 and a third spring 77, two guide frames 72 are fixedly connected to the upper left and right sides of the truss body 1, two second pressing plates 73 are rotatably connected to the upper left and right sides of the truss body 1, the outer side of each top frame 52 is connected with a pull rope 71, each pull rope 71 is connected with the bottom of the adjacent second pressing plate 73 through the adjacent guide frame 72, two arc-shaped connecting plates 74 are slidably connected to the upper left and right sides of the truss body 1, the arc-shaped connecting plates 74 are used for reinforcing the stability between the two truss bodies 1, two limiting grooves are formed in the lower left and right sides of the truss body 1, two moving frames 76 are slidably connected to the upper left and right sides of the truss body 1, a swing lever 75 is rotatably connected to each of the four moving frames 76, the swing lever 75 is used for driving the arc-shaped connecting plate 74 to rotate, the upper part of each of the four swing levers 75 is rotatably connected with the lower part of the adjacent arc-shaped connecting plate 74, two third springs 77 are sleeved at the positions close to the moving frames 76 on the upper left and right sides of the truss body 1, there are eight third springs 77, and the two ends of each third spring 77 are connected with the truss body 1 and the moving frame 76. Initially, the second pressing plate 73 limits the arc-shaped connecting plate 74, the third spring 77 is in a stretched state, when the top frame 52 moves outward, the top frame 52 loosens the pull rope 71, so that the second pressing plate 73 no longer limits the arc-shaped connecting plate 74, the third spring 77 resets, drives the moving frame 76 to move upward, the moving frame 76 drives the swing lever 75 to swing, so that the swing lever 75 drives the arc-shaped connecting plate 74 to rotate inward and lifts the second pressing plate 73, then the other truss body 1 is placed on the top of the truss body 1, so that the limiting grooves on the other truss body 1 are aligned with the arc-shaped connecting plates 74 on the truss body 1, then when the top frame 52 moves inward and resets, the second pressing plate 73 is pulled downward by the pull rope 71 to rotate and press the arc-shaped connecting plate 74 to rotate outward and reset, so as to drive the swing lever 75 to reverse and reset, and then drive the moving frame 76 to move downward and reset, the third spring 77 is stretched, then the arc-shaped connecting plate 74 is clamped into the limiting groove on the other truss body 1, in this way, the stability between the two truss bodies 1 can be further improved, the safety performance is increased, and when disassembling, the arc-shaped connecting plate 74 is separated from the limiting groove on the other truss body 1.

[0076] The above only describes the preferred embodiments of the present application, and it should be noted that those of ordinary skill in the art can make several improvements and refinements without departing from the principles of the present application, and these improvements and refinements should also be considered within the protection scope of the present application.

Claims

1. A modular truss that is easy to disassemble and use, characterized in that, Including: Truss main body (1); The truss body (1) is provided with a locking mechanism (2) for locking and fixing the two truss bodies (1); A connecting mechanism (3) is provided on the truss body (1) to improve stability; The positioning mechanism (2) includes: Screws (22) are slidably connected to the upper left and right sides of the truss body (1); The prismatic bushing (21) is threadedly connected to both the left and right lead screws (22); Each lead screw (22) is rotatably connected to a locking block (23), which is L-shaped; Connecting blocks (24) are connected to the lower left and right sides of the truss body (1). The connecting blocks (24) are L-shaped. The locking blocks (23) move inward to lock the connecting blocks (24) and are used to lock and fix the truss body (1).

2. The modular truss that is easy to disassemble and use according to claim 1, characterized in that, The connecting mechanism (3) includes: Support frame (31), the upper middle part of the truss body (1) is connected to the support frame (31) on both the front and rear sides; movable plate frame (32), the rear support frame (31) and the front support frame (31) are slidably connected to each other; The inclined block (33) is slidably connected to both the left and right sides of the movable plate frame (32), and an L-shaped unlocking block is connected to the bottom of the inclined block (33); The first spring (34) is fitted on both the upper left and right sides of the movable plate frame (32). The two ends of the first spring (34) are connected to the inclined block (33) and the movable plate frame (32) respectively. The first air cylinder (35) is connected to the front and rear sides of the upper middle part of the truss body (1). The top of the piston rod of the first air cylinder (35) on the front side and the top of the piston rod of the first air cylinder (35) on the rear side are connected to the bottom of the adjacent movable plate frame (32). The second air cylinder (37) is connected to the upper left and right sides of the truss body (1); First pressure plate (36), the top of the piston rod of each second air cylinder (37) is connected to the first pressure plate (36); first telescopic rod (310), the bottom of each first pressure plate (36) is connected to the truss body (1) and each first telescopic rod (310) is fitted with a spring; The lower part of the first air cylinder (35) on the rear side is connected to the lower part of the second air cylinder (37) on the rear side by a duct (38), and the lower part of the first air cylinder (35) on the front side is connected to the lower part of the second air cylinder (37) on the front side by a duct (38). The truss body (1) is connected to the front and rear sides of the lower part of the truss body (1). The moving plate frame (32) drives the inclined block (33) to move upward to the truss body (1) and is used to fix the truss body (1) in place.

3. A modular truss that is easy to disassemble and use according to claim 2, characterized in that, It also includes a limiting mechanism (4) for locking the prismatic bushing (21), the limiting mechanism (4) including: The second telescopic rod (41) is connected to the upper left and right sides of the truss body (1); the limiting frame (42) is connected to the inner side of the second telescopic rod (41) on the left and the inner side of the second telescopic rod (41) on the right for locking the prism bushing (21). The second spring (43) is fitted on each of the second telescopic rods (41), and the two ends of the second spring (43) are connected to the second telescopic rod (41) and the limiting frame (42) respectively.

4. A modular truss that is easy to disassemble and use according to claim 3, characterized in that, The internal shape of the limiting bracket (42) matches the prismatic bushing (21).

5. A modular truss that is easy to disassemble and use according to claim 4, characterized in that, It also includes a release mechanism (5) for automatically moving the inclined block (33) inward, the release mechanism (5) including: Support blocks (53): Two sets of support blocks (53) are connected to the upper front and rear sides of the truss body (1); Top rods (51): Top rods (51) are slidably connected inside each set of support blocks (53), and the outer side of each top rod (51) is a slope. Top frame (52), each screw (22) is connected to a top frame (52). The top frame (52) moves outward to squeeze the adjacent top rod (51) to move inward, which drives the top rod (51) to squeeze the inclined block (33) to move inward automatically to unlock.

6. A modular truss that is easy to disassemble and use according to claim 5, characterized in that, It also includes a reinforcement mechanism (6) for reinforcing the two truss main bodies (1), the reinforcement mechanism (6) including: Threaded sleeve (61) is connected to the upper part of the truss body (1). The threaded sleeve (61) is located at the four included angles of the truss body (1). Mounting bracket (63), the mounting bracket (63) is connected to the middle of the truss body (1); Rotary rod (62), each mounting bracket (63) contains a rotating rod (62); Threaded rod (65), each rotating rod (62) is connected to the bottom of a threaded rod (65), the threaded rod (65) moves down and is threadedly connected to the threaded sleeve (61) on another truss body (1) for reinforcing the truss body (1); Tension springs (64) are connected to the upper part of each rotating rod (62), and the top of each tension spring (64) is in contact with the adjacent mounting bracket (63).

7. A modular truss that is easy to disassemble and use according to claim 6, characterized in that, It also includes a connection reinforcement mechanism (7) for enhancing the stability between the two truss bodies (1), the connection reinforcement mechanism (7) including: Guide frame (72), the upper left and right sides of the truss body (1) are connected to the guide frame (72); The second pressure plate (73) is rotatably connected to the upper left and right sides of the truss body (1); the pull rope (71) is connected to the outside of each top frame (52), and each pull rope (71) passes around the nearby guide frame (72) and is connected to the bottom of the nearby second pressure plate (73); Arc-shaped connecting plate (74), the upper left and right sides of the truss body (1) are slidably connected with arc-shaped connecting plate (74) to enhance the stability between the two truss bodies (1), and the lower left and right sides of the truss body (1) are provided with limit grooves. The movable frame (76) is slidably connected to the upper left and right sides of the truss body (1); the swing rod (75) is rotatably connected to the movable frame (76) for driving the arc-shaped connecting plate (74) to rotate, and the upper part of the swing rod (75) is rotatably connected to the lower part of the nearby arc-shaped connecting plate (74); The third spring (77) is fitted on both the left and right sides of the upper part of the truss body (1) near the moving frame (76). The two ends of the third spring (77) are connected to the truss body (1) and the moving frame (76) respectively.

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