A driving component for a fan-shaped folding screen

Abstract

The present invention discloses a driving assembly of a fan-shaped folding screen, including a skeleton assembly, a first driving device and a second driving device; the skeleton assembly has a plurality of support rods; the plurality of support rods can be stacked in sequence from top to bottom, wherein the support rod stacked at the top is an active rod; the active rod is mounted on a first axis, the first axis is mounted on an axis seat, the axis seat is mounted on a second axis, and when the skeleton assembly is in a closed state, the first axis is located above the second axis; the first driving device is mounted on the axis seat for driving the active rod to rotate around the first axis, and the second driving device is used to drive the axis seat to rotate around the second axis. With the above technical solution, due to the use of a two-stage driving device, after the first driving device is driven to the maximum stroke, the second driving device can be used to continue driving, thereby greatly improving the rotation angle of the active rod and making the skeleton assembly have a larger unfolding area.

Description

Technical Field

[0001] The invention relates to a driving component of a fan-shaped folding screen, belonging to the technical field of stage equipment. Background Art

[0002] With the development of science and technology and the progress of society, the scenery and installations of modern stage art are also constantly keeping pace with the times. As a carrier of performance content, the stage must show the audience a beautiful stage visual image, which requires the application of modern science and technology to design the stage visual effects. The current fan-shaped folding screen usually sets a curtain on the fan-shaped frame, and the curtain can be used as a background. The fan-shaped frame includes a plurality of support rods, and the adjacent support rods are connected by a pull rope. After pulling the top support rod, the pull rope can drive the support rods located below to move in turn, and finally realize the unfolding of the fan-shaped folding screen. Usually, the device that drives the support rod to rotate is an oil cylinder, which drives the top support rod to rotate, but the top support rod rotates at a small angle under the push of the oil cylinder. Summary of the invention

[0003] Therefore, an object of the present invention is to provide a driving assembly for a fan-shaped folding screen, which is driven by a secondary driving device, so that the rotation angle of the active rod can be increased.

[0004] In order to achieve the above-mentioned purpose, a driving component of a fan-shaped folding screen of the present invention includes a skeleton component, a first driving device and a second driving device; the skeleton component has multiple support rods; the multiple support rods can be stacked in sequence from top to bottom, wherein the support rod stacked at the top is an active rod, and the remaining support rods are driven rods; any two adjacent support rods are connected by multiple connecting members; the lengths of the multiple connecting members between two adjacent support rods are in an increasing trend; the active rod is installed on a first axis, the first axis is installed on an axle seat, and the axle seat is installed on a second axis, and when the skeleton component is in a closed state, the first axis is located above the second axis; the first driving device is installed on the axle seat to drive the active rod to rotate around the first axis, and the second driving device is used to drive the axle seat to rotate around the second axis.

[0005] The first driving device comprises a first hydraulic cylinder, one end of which is hinged to the active rod and the other end is hinged to the axle seat; the second driving device comprises a second hydraulic cylinder, one end of which is hinged to the axle seat and the other end is hinged to a mounting seat.

[0006] The shaft seat has an arcuate surface, and one end of the driven rod presses against the arcuate surface when the driven rod is unfolded.

[0007] The skeleton structure of the folding screen also includes a lifting seat, which is used to support multiple stacked support rods; the lifting seat includes an upper supporting rod, a lower supporting rod, multiple parallel rods hinged between the upper supporting rod and the lower supporting rod, and a base, the upper supporting rod and the lower supporting rod are arranged horizontally, and the multiple parallel rods are arranged parallel to each other; one end of the upper supporting rod is hinged to the lower end of the shaft seat, and the lower supporting rod is movably arranged on the base.

[0008] The lower supporting rod is provided with a plurality of rollers, and the rollers can roll on the base.

[0009] Each of the connecting members includes a connecting rod hinged on a supporting rod, and a pull rope connected to the connecting rod, and the length of the pull rope is not shorter than the length of the connecting rod.

[0010] By adopting the above technical scheme, the driving component of the fan-shaped folding screen of the present invention can drive the skeleton component to expand or close. When in use, after the curtain is set on the skeleton component, the curtain can be opened and closed as the skeleton component is expanded or closed. Since a two-stage driving device is adopted, after the first driving device is driven to the maximum stroke, the second driving device can be used to continue driving, so that the rotation angle of the active rod is greatly improved, so that the expansion area of ​​the skeleton component is larger. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the skeleton assembly in the present invention when it is in a closed state.

[0012] Figure 2 A schematic diagram of a skeleton component in the process of opening.

[0013] Figure 3 The second schematic diagram shows the skeleton component in the process of opening.

[0014] Figure 4 A schematic diagram of a skeleton component in the process of opening.

[0015] Figure 5 A schematic diagram of a skeleton component in the process of opening.

[0016] Figure 6 It is a structural schematic diagram of the lifting seat.

[0017] Figure 7 for Figure 3 A partial enlarged view of part A. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below through the accompanying drawings and specific embodiments.

[0019] like Figure 1-7As shown, a driving assembly of a fan-shaped folding screen of the present invention includes a skeleton assembly and a driving device for driving the skeleton assembly to expand or fold.

[0020] The skeleton assembly includes a plurality of support rods 1, and the plurality of support rods 1 can be stacked in sequence from top to bottom, wherein the support rod 1 stacked at the top is the active rod 1a, and the remaining support rods 1 are the driven rods 1b. Any two adjacent support rods 1 are connected by a plurality of connecting members; each of the connecting members includes a connecting rod 2 hinged on the support rod 1, and a pull rope 3 connected to the connecting rod 2, the length of the pull rope 3 is not shorter than the length of the connecting rod 2, in this embodiment, the effective length of the pull rope 3 is the same as the length of the connecting rod 2, and the connection position of the pull rope 3 on the support rod 1 corresponds to the hinge position of the connecting rod 2, so when the skeleton assembly is in a closed state, the pull rope 3 can be effectively prevented from being entangled.

[0021] One end of the active rod 1a is installed on the shaft assembly, and the driving assembly can drive the active rod 1a to rotate; the length of the multiple connecting parts between two adjacent support rods 1 increases with the increase of the distance from the connecting parts to the shaft assembly, thereby achieving the final fan-shaped effect.

[0022] In this embodiment, the driving device includes a first driving device and a second driving device; the rotating shaft assembly includes a first shaft 4 for mounting the active rod 1a and a shaft seat 5 for mounting the first shaft 4, and the shaft seat 5 is mounted on the second shaft 6; the first driving device is mounted on the shaft seat 5 to drive the active rod 1a to rotate around the first shaft, and the second driving device is used to drive the shaft seat 5 to rotate around the second shaft 6. The first driving device includes a first hydraulic cylinder 7, one end of which is hinged to the active rod 1a and the other end is hinged to the shaft seat 5; the second driving device includes a second hydraulic cylinder 8, one end of which is hinged to the shaft seat 5 and the other end is hinged to a mounting seat 9. Of course, in other embodiments, the first driving device and the second driving device may also be other driving devices, such as motor driving devices.

[0023] The shaft seat 5 has an arc-shaped surface, and one end of the driven rod 1b presses against the arc-shaped surface when the driven rod 1b is unfolded.

[0024] Since the second hydraulic cylinder 8 drives the shaft seat 5 to rotate, the unfolded support rod 1 will rotate as a whole around the axis of the second shaft 6. Therefore, in order to prevent the unfolded support rod 1 from swinging left and right when it is opened, it is necessary to move the support rod 1 outward by a corresponding displacement as the shaft seat 5 rotates. Therefore, the skeleton structure of the fan-shaped folding screen also includes a lifting seat under the support rod 1, which is used to support the stacked support rods 1 and provide support force for the support rods 1. In this embodiment, Figure 4 ,5 As shown, the lifting seat includes an upper supporting rod 10, a lower supporting rod 11, a plurality of parallel rods 12 hinged between the upper supporting rod 10 and the lower supporting rod 11, and a base 13. The upper supporting rod 10 and the lower supporting rod 11 are arranged horizontally, and the plurality of parallel rods 12 are arranged parallel to each other. One end of the upper supporting rod 10 is hinged to the lower end of the shaft seat 5, and the lower supporting rod 11 is movably arranged on the base 13. The lower supporting rod 11 is provided with a plurality of rollers 14, and the rollers 14 can roll on the base 13. When the shaft seat 5 rotates, it will drive the upper supporting rod 10 to move outward, so that the support rod 1 that has not been unfolded will move a distance to the outside and upward synchronously.

[0025] like Figure 1 As shown, the skeleton structure of the fan-shaped folding screen of the present invention is installed in the foundation pit, and the skeleton components are folded and placed. Figure 2 As shown, when unfolding, the first hydraulic cylinder 7 drives the active rod 1a to rotate around the axis of the first shaft 4, and as the active rod 1a rotates, the corresponding support rod 1 is driven to rotate through multiple connecting members. Figure 3 As shown, in this embodiment, when the active rod 1a rotates to a vertical state, the first hydraulic cylinder 7 reaches the maximum stroke position. Figure 4 As shown, in order to realize the continued opening of the skeleton assembly, the second hydraulic rod drives the shaft seat 5 to rotate as a whole. At the same time, the rotation of the shaft seat 5 also drives the upper support rod 10 of the lifting seat to move upward, and the angles between the multiple parallel rods 12 and the upper support rod 10 and the lower support rod 11 change, and the lower support rod 11 moves toward the direction close to the shaft seat 5. Figure 5 As shown, all skeleton components are unfolded.

[0026] Obviously, the above embodiments are only examples for clear explanation, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from them are still within the protection scope of the invention.

Claims

1. A driving assembly for a fan-shaped folding screen, characterized in that: It comprises a skeleton component, a first driving device and a second driving device; the skeleton component has a plurality of support rods; the plurality of support rods can be stacked in sequence from top to bottom, wherein the support rod stacked at the top is an active rod, and the remaining support rods are driven rods; any two adjacent support rods are connected by a plurality of connecting members; the lengths of the plurality of connecting members between two adjacent support rods are increasing; the active rod is mounted on a first shaft, the first shaft is mounted on an axle seat, the axle seat is mounted on a second shaft, and when the skeleton component is in a closed state, the first shaft is located above the second shaft; the first driving device is mounted on the axle seat for driving the active rod to rotate around the first shaft, and the second driving device is used to drive the axle seat to rotate around the second shaft; The first driving device comprises a first hydraulic cylinder, one end of which is hinged to the active rod, and the other end of which is hinged to the shaft seat; the second driving device comprises a second hydraulic cylinder, one end of which is hinged to the shaft seat, and the other end of which is hinged to a mounting seat; The shaft seat has an arc-shaped surface, and one end of the driven rod is pressed against the arc-shaped surface when the driven rod is unfolded; The skeleton structure of the folding screen also includes a lifting seat, which is used to support multiple stacked support rods; the lifting seat includes an upper supporting rod, a lower supporting rod, multiple parallel rods hinged between the upper supporting rod and the lower supporting rod, and a base, the upper supporting rod and the lower supporting rod are arranged horizontally, and the multiple parallel rods are arranged parallel to each other; one end of the upper supporting rod is hinged to the lower end of the shaft seat, and the lower supporting rod is movably arranged on the base.

2. The driving assembly of the fan-shaped folding screen according to claim 1, characterized in that: The lower supporting rod is provided with a plurality of rollers, and the rollers can roll on the base.

3. The driving assembly of the fan-shaped folding screen according to any one of claims 1 to 2, characterized in that: Each of the connecting members includes a connecting rod hinged on a supporting rod, and a pull rope connected to the connecting rod, and the length of the pull rope is not shorter than the length of the connecting rod.

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