Activity square stage truss

Abstract

The invention relates to the technical field of stage lifting devices, and particularly discloses an activity square stage truss. The activity square stage truss comprises a first truss body, a secondtruss body and a third truss body; the third truss body is connected with the first truss body and the second truss body, rockers are hinged to the first truss body and the second truss body correspondingly, a transverse plate is arranged on the lower portion of the third truss body, a first sliding block is hinged to one end of each rocker, a second sliding block is hinged to the other end of each rocker, and the first sliding blocks are horizontally and slidably connected to the side wall of the transverse plate; hydraulic cylinders are mounted on the two sides of the transverse plate correspondingly, a horizontal plate is connected to the output ends of the hydraulic cylinders, and the second sliding blocks are horizontally and slidably connected to the side wall of the horizontal plate; and a cylinder body is arranged on the lower portion of the transverse plate, a piston is slidably connected into the cylinder body, a telescopic rod is fixedly connected to the piston and connected to the transverse plate, the cylinder body communicates with an air inlet pipe and an air outlet pipe, the air outlet pipe is connected with an elastic airbag, and the elastic airbag is mounted on the third truss body. According to the activity square stage truss, the safety during mounting stage apparatus in mid-air by workers can be ensured, and fall damage of personnel is avoided.

Description

technical field

[0001] The invention relates to the technical field of stage lifting devices, and specifically discloses a stage truss for an activity square. Background technique

[0002] At present, the frames of the stages on many event plazas are made of trusses. After the truss is built into the stage frame, it is necessary to install some stage equipment such as stage lamps and props on the truss above the stage. At this time, the staff needs to climb the truss to the top of the stage or climb to the top of the stage with a ladder on the truss, and then install the stage equipment. During the above process, the safety of the staff cannot be guaranteed, and it is very likely that a fall event will occur, resulting in injury to the staff. Therefore, need a kind of device that can protect staff to install stage equipment above the stage. Contents of the invention

[0003] The present invention intends to provide a stage truss for a movable square to solve the problem...

Examples

Embodiment Construction

[0023] The following is further described in detail through specific implementation methods:

[0024] The reference signs in the drawings of the description include: first truss 1, second truss 2, third truss 3, electromagnet 4, horizontal plate 5, guardrail 6, support rod 7, cross rod 8, first rocker 9 , the second rocker 10, the second slider 11, the first slider 12, the hydraulic cylinder 13, the horizontal plate 14, the cylinder 15, the piston 16, the upper chamber 17, the lower chamber 18, the air inlet pipe 19, the air outlet pipe 20, elastic air bag 21, telescoping rod 22, stage 23.

[0025] The embodiment is basically as figure 1 As shown, the stage truss of the activity square includes the first truss 1 and the second truss 2 installed vertically on the ground, and the third truss 3 above the stage 23, and the left end of the third truss 3 is fixedly connected with the first truss 1 , the right end of the third truss 3 is fixedly connected to the second truss 2 , an...

technical field

[0001] The invention relates to the technical field of stage lifting devices, and specifically discloses a stage truss for an activity square. Background technique

[0002] At present, the frames of the stages on many event plazas are made of trusses. After the truss is built into the stage frame, it is necessary to install some stage equipment such as stage lamps and props on the truss above the stage. At this time, the staff needs to climb the truss to the top of the stage or climb to the top of the stage with a ladder on the truss, and then install the stage equipment. During the above process, the safety of the staff cannot be guaranteed, and it is very likely that a fall event will occur, resulting in injury to the staff. Therefore, need a kind of device that can protect staff to install stage equipment above the stage. Contents of the invention

[0003] The present invention intends to provide a stage truss for a movable square to solve the problem...

Examples

Embodiment Construction

[0023] The following is further described in detail through specific implementation methods:

[0024] The reference signs in the drawings of the description include: first truss 1, second truss 2, third truss 3, electromagnet 4, horizontal plate 5, guardrail 6, support rod 7, cross rod 8, first rocker 9 , the second rocker 10, the second slider 11, the first slider 12, the hydraulic cylinder 13, the horizontal plate 14, the cylinder 15, the piston 16, the upper chamber 17, the lower chamber 18, the air inlet pipe 19, the air outlet pipe 20, elastic air bag 21, telescoping rod 22, stage 23.

[0025] The embodiment is basically as figure 1 As shown, the stage truss of the activity square includes the first truss 1 and the second truss 2 installed vertically on the ground, and the third truss 3 above the stage 23, and the left end of the third truss 3 is fixedly connected with the first truss 1 , the right end of the third truss 3 is fixedly connected to the second truss 2 , an...

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