CN213131934U - Shadowless net equipment - Google Patents

Abstract

The utility model discloses a shadowless net equipment, include: the hoisting point beam structure is arranged on a roof structure beam of a building and used for hoisting the electric hoist through the hoisting point beam structure; the grid top conversion structure is arranged on the roof structure beam and positioned below the lifting point beam structure and is used for supporting the shadowless structure through the grid top conversion structure; the shadowless structure is arranged below the grid top conversion structure and provided with a steel wire rope net woven by steel wire ropes, and is used for bearing workers and/or performance equipment through the shadowless structure. The utility model discloses a shadowless net equipment can not produce the shadow because of stage lighting, experiences for the performance provides better use to increase more performance modes.

Description

Shadowless net equipment

Technical Field

The utility model relates to a stage machinery technical field especially relates to a shadowless net equipment.

Background

In recent ten years, stage machinery in China is rapidly updated and developed, and on the basis of meeting the technological level of modern stage machinery, the stage machinery also needs to meet the increasing use requirements of lighting, sound equipment and other equipment, and meanwhile, absolute safety and reliability need to be guaranteed.

However, the steel structure grid roof is commonly used in theaters and multi-functional halls at present and is formed by large-scale section bars and grid plates, the load of the steel structure grid roof is shared by a roof steel structure and the embedded plates around the grid roof, the main load is the embedded plates arranged around the grid roof, only a relatively small part of suspension posts on the grid roof are supported, and therefore the main steel structure of the grid roof which is tiled is very large, the installation space is limited, the grid roof can be easily seen by audiences, the grid roof is not attractive in vision, in addition, the steel structure grid roof causes great interference to lighting in the performance process, the arrangement of performance equipment is not facilitated, and the performance effect is reduced.

Disclosure of Invention

The utility model aims at solving the problem that exists among the above-mentioned prior art, provide a shadowless net equipment, this shadowless net equipment can not produce the shadow because of stage lighting, experiences for the performance provides better use to increase more performance modes.

In order to realize the above object of the present invention, the present invention provides a shadowless net apparatus, which comprises: the hoisting point beam structure is arranged on a roof structure beam of a building and used for hoisting the electric hoist through the hoisting point beam structure; the grid top conversion structure is arranged on the roof structure beam and positioned below the lifting point beam structure and is used for supporting the shadowless structure through the grid top conversion structure; the shadowless structure is arranged below the grid top conversion structure and provided with a steel wire rope net woven by steel wire ropes, and is used for bearing workers and/or performance equipment through the shadowless structure.

Wherein the lifting point beam structure comprises: a lifting point beam cross-beam mounted between adjacent structural beams of a building roof structural beam; a circular tube fixedly arranged below the beam of the hoisting point beam; wherein, hoist and mount electric block through the pipe.

Wherein the gate-top switching structure comprises: a grid top beam mounted below the building roof structure beam; and the suspension posts are fixedly arranged below the grid top cross beam and used for hoisting the shadowless structure.

Further, the gate-top switching structure further includes: and the fixture is used for connecting the grid top cross beam with the bottom of the corresponding roof structure beam.

Wherein, anchor clamps are ordinary anchor clamps, include: a second steel plate connected to a side of the roof structure beam; a pair of third steel plates which are parallel up and down and used for clamping and fixing the grid top beam, and the third steel plate positioned above the third steel plate is fixedly connected with the bottom of the second steel plate.

Wherein the third steel plate is vertically arranged with the second steel plate.

Further, the clamp further comprises at least one first steel plate perpendicular to both the second steel plate and the third steel plate located above.

Or, the clamp is a reinforcing clamp, including: a second steel plate connected to a side of the roof structure beam; the pair of third steel plates are parallel up and down and used for clamping and fixing the grid top beam, and the third steel plate positioned above the pair of third steel plates is fixedly connected with the bottom of the second steel plate; and the reinforcing rib plate is fixedly arranged on the upper surface of the third steel plate positioned above and is connected with the bottom of the second steel plate.

Wherein, the shadowless structure includes: the grid steel structure is arranged below the grid top conversion structure and is used as a main support frame of the shadowless structure; and the steel wire rope frame is arranged on the grid steel structure, and a steel wire rope net formed by weaving steel wire ropes is arranged on the steel wire rope frame.

Wherein the diameter of the steel wire rope is 5-8 mm.

Preferably, the steel cord has a diameter of 6 mm.

Compared with the prior art, the utility model discloses a shadowless net equipment has following outstanding advantage:

1. the utility model discloses a shadowless net equipment can satisfy celebration, singing dance, drama performance diversified day by day, and stage performance mode requirements such as large-scale activity have changed use limitations such as more and more theatre, concert hall, art center, exhibition room, and shadowless net equipment can not produce the shadow because of stage light for spectator sees the wire rope net hardly when watching the performance in whole building, improves the viewing effect.

2. The utility model discloses shadowless net equipment does not have dimensional requirement to the installation space of shadowless net equipment: the device can be installed in theaters, multifunctional halls, concert halls and meeting rooms; the device can be arranged above auditorium and above performance; the size of the installation space is not limited, and the multifunctional hall with a small area or the theater with a large area can be installed.

3. The utility model discloses a shadowless net equipment, the enough powerful of intensity of wire rope net, every square meter load can reach two hundred kilograms per square meter, can bear stereo set and lighting equipment without pressure, also can bear the normal installation of several staff and overhaul, need not set up fixed position's personnel position, can go to at will in the whole wire rope net.

4. The utility model discloses shadowless net equipment, all lamp poles can all be installed on the davit that bears the weight of the wire rope net, and this provides the installation possibility of very much light audio equipment, and the user can require to arrange various light audio equipment on whole wire rope net in a flexible way according to the difference of performance, this great improvement the effect of performance.

5. The utility model discloses a shadowless net equipment can install the electric block of great load at hoisting point roof beam structure, and these electric blocks can be more convenient use in the installation of light stereo equipment.

The present invention will be described in detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural diagram of the shadowless net device of the present invention;

FIG. 2 is a view taken along line A-A of FIG. 1;

FIG. 3 is a view from B-B in FIG. 1;

FIG. 4 is a schematic view of the structure of the present invention with the suspension point beam structure mounted on the roof of a building;

FIG. 5 is a view from A-A in FIG. 4;

FIG. 6 is a view from B-B in FIG. 4;

FIG. 7 is an enlarged view of portion C of FIG. 5;

FIG. 8 is an enlarged view of portion D of FIG. 5;

FIG. 9 is an enlarged view of portion E of FIG. 6;

fig. 10 is a schematic view of the grid roof transition structure of the present invention assembled on the roof of a building;

FIG. 11 is a view from A-A in FIG. 10;

FIG. 12 is a view from D-D in FIG. 10;

FIG. 13 is an enlarged view taken along line E-E of FIG. 10;

FIG. 14 is an enlarged view of the view in the direction F-F in FIG. 10;

FIG. 15 is an enlarged view of portion I of FIG. 11;

FIG. 16 is a schematic view of the connection between the beam and the steel plate in the grid-roof transition structure;

FIG. 17 is a right side view of FIG. 16;

FIG. 18 is a schematic view of a fixture in a grid-top switching configuration;

FIG. 19 is a schematic view of the grid steel structure of the present invention assembled on the roof of a building;

FIG. 20 is a view taken along line A-A of FIG. 19;

FIG. 21 is a view from the B-B direction in FIG. 19;

FIG. 22 is an enlarged view of portion I of FIG. 19;

FIG. 23 is an enlarged view of portion II of FIG. 19;

FIG. 24 is an enlarged view of a portion III of FIG. 19;

FIG. 25 is an enlarged view of the portion IV of FIG. 20;

fig. 26 is a schematic view of a wire rope net structure according to the present invention;

FIG. 27 is an enlarged view of portion I of FIG. 26;

FIG. 28 is an enlarged view of portion II of FIG. 26;

FIG. 29 is a front view of a first clamp in a grid-top transition structure (showing roof structure beams and cross beams);

FIG. 30 is a left side view of the first clamp;

FIG. 31 is a top view of the first clamp;

FIG. 32a is a schematic view of a first steel plate in a first clamp;

FIG. 32b is a schematic view of a third steel plate in the first clamp;

FIG. 32 is a front view of a second clamp in a grid-top transition structure (showing roof structure beams and cross beams);

FIG. 33 is a left side view of the second clamp;

FIG. 34 is a top view of the second clamp;

FIG. 35 is a schematic view of the structure of the first steel plate in the second clamp;

FIG. 36 is a front view of a third clamp in a grid-top transition structure (showing roof structure beams and cross-beams);

FIG. 37 is a left side view of the third clamp;

FIG. 38 is a top view of the third clamp;

FIG. 39 is a front view of a fourth clamp in a grid-top transition structure (showing roof structure beams and cross beams);

FIG. 40 is a left side view of the fourth clamp;

FIG. 41 is a top view of a fourth clamp;

FIG. 42 is a front view of a fifth clamp in a grid-top transition structure (showing roof structure beams and cross beams);

FIG. 43 is a left side view of the fifth clamp;

FIG. 44 is a top view of the fifth clamp;

FIG. 45 is a front view of a sixth clamp in a grid-top transition structure (showing roof structure beams and cross beams);

FIG. 46 is a left side view of the sixth clamp;

FIG. 47 is a top view of the sixth clamp;

FIG. 48 is a front view of a seventh clip in a grid-top transition structure (showing roof structure beams and cross-beams);

FIG. 49 is a left side view of the seventh clamp;

FIG. 50 is a top view of a seventh clamp;

FIG. 51 is a front view of an eighth clip in a grid-top transition structure (showing roof structure beams and cross-beams);

FIG. 52 is a left side view of the eighth clamp;

fig. 53 is a plan view of the eighth jig.

Detailed Description

As shown in fig. 1-3, the schematic structural diagram of the shadowless net device of the present invention is shown in fig. 1-3, and the shadowless net device of the present invention includes: a hoisting point beam structure 1 installed on a roof structure beam 5 of a building for hoisting an electric hoist (not shown in the figure) by the hoisting point beam structure 1; the grid top conversion structure 2 is arranged on the roof structure beam 5 and positioned below the lifting point beam structure 1 and is used for supporting the shadowless structure 3 through the grid top conversion structure 2; and the shadowless structure 3 is arranged below the grid top conversion structure 2 and is provided with a steel wire rope net woven by steel wire ropes, and is used for bearing workers and/or performance equipment through the shadowless structure 3.

The utility model discloses shadowless net equipment, can satisfy celebration diversified day by day, singing and dancing, drama performance, stage performance mode requirements such as large-scale activity, more and more theatre has been changed, the concert hall, artistic center, use limitations such as exhibition room, and because the structure that is used for of shadowless net equipment bears the weight of staff, the wire rope net that forms is woven for by many wire rope to the structure of performance equipment, can not produce the shadow because of stage light at performance in-process wire rope net, this makes spectator see the wire rope net hardly when watching the performance in whole building, consequently, greatly improve spectator and watch the effect of performance.

Fig. 4 shows a schematic view of the mounting of the suspension point beam structure 1 on the roof of a building, and fig. 5 and 6 show views a-a and B-B in fig. 4, respectively. As can be seen from fig. 4-6, the hoisting point beam structure 1 of the present invention comprises a plurality of hoisting point beam cross beams 101 installed on the roof structure beam 5 and a circular tube 102 fixedly installed below the hoisting point beam cross beams 101. Wherein, hoist and mount electric block through the pipe.

Specifically, a plurality of roof structure beams 5 which are parallel to each other are arranged on a roof of a building for performing, a plurality of lifting point beam cross beams 101 which are parallel to each other are arranged between the adjacent roof structure beams 5, the extending direction of the lifting point beam cross beam 101 is perpendicular to the extending direction of the roof structure beam 5, and the distance between the adjacent lifting point beam cross beams 101 can be 1.5-2.5 meters during assembly.

When the suspension point beam cross beam 101 is installed between adjacent structural beams of the roof structural beam of the building, a suspension point plate 103 (as shown in fig. 8-9) is further fixedly installed on the opposite surfaces of a pair of adjacent roof structural beams 5, and the suspension point plate 103 is fixed on the surface of the roof structural beam 5 facing the corresponding suspension point beam cross beam 101 through a plurality of screws 104, so as to ensure the stability when the suspension point plate 103 is connected with the roof structural beam 5, the suspension point plate 103 and the roof structural beam 5 can be further connected through an anchoring adhesive and an anchor bolt. Then, the two ends of the beam cross beam 101 are respectively fixedly connected with a pair of lifting point plates 103 on the opposite surfaces of a pair of structural beams, and during connection, a welding mode can be adopted.

And a round pipe 102 (as shown in fig. 7) is fixedly installed below each lifting point beam cross beam 101, the round pipe 102 can be fixed below the lifting point beam cross beam 101 by welding, and the extending direction of the round pipe 102 is perpendicular to the extending direction of the lifting point beam cross beam 101, that is, the extending direction of the round pipe 102 is consistent with the extending direction of the roof structure beam 5.

After the shadowless net device is formed, an electric hoist (not shown in the figure) can be hoisted through the circular pipe 102. The electric hoist is a main tool for installing the lamp, and the electric hoist can be hung on the round pipes near the lamp according to the requirement during use, so that the installation position of the round pipes can meet the requirement of installing all the lamps on the whole shadowless net equipment during design.

Besides the above-mentioned hanging point beam structure 1, a grid top conversion structure 2 is also installed on the roof structure beam 5, and the grid top conversion structure 2 is located below the hanging point beam structure 1 and is a support part of the shadowless structure in the whole shadowless net equipment.

Fig. 10 shows a schematic structural view of the grid roof transition structure 2 of the present invention installed on a roof of a building, and fig. 11 and 12 are a-a view and a D-D view of fig. 10, respectively. As shown in fig. 10 to 12, the gate-top conversion structure 2 includes: a grid top beam mounted below the building roof structure beam 5; and the hanging columns 220 are fixedly arranged below the grid top cross beam and used for hanging the shadowless structure. In addition, the hanging rod for installing the lighting sound equipment is also provided with a shackle for installing the hanging rod on the hanging post.

Specifically, a plurality of grid top cross beams which are parallel to each other are arranged below the roof structure beam 5 of the building, such as a pair of first grid top beams 203 positioned at both ends of the roof structure beam 5, a plurality of second grid top beams 204 positioned between the pair of first grid top beams 203, the length extension direction of each grid top beam is perpendicular to the length extension direction of the roof structure beam 5, and the upper portion of the second grid top beam 2034 is simultaneously fixedly connected to the lower portion of each roof structure beam 5, since stairs are provided at both sides of the roof of the building above the performance stage, i.e., at positions below both ends of the outermost roof structural beams 5, the upper portion of the first grid top beam 203 is not connected to the lower portion of the pair of roof structural beams 5 near the outermost, and is fixedly connected with the lower parts of other roof structure beams at the same time, namely, one end of the first grid top cross beam 203 is suspended outside the roof structure beams.

Because the span of the grid top beam is large (i.e. the grid top beam is long), the grid top beam is usually assembled on site by adopting a splicing mode, and during assembly, as shown in fig. 16-18, two sections of the grid top beam are butted together by two splicing steel plates 209, and the splicing steel plates are connected with the grid top beam through bolts 205, nuts 206 and washers 207.

When connecting each grid top beam with the bottom of the roof structure beam 5, the grid top beams and the roof structure beam are connected together through a clamp, and the structure of the clamp is slightly different due to different installation positions, but the clamp is a connecting piece connected with a civil structure (namely the roof structure beam 5) and the grid top beams.

Wherein, anchor clamps can be ordinary anchor clamps, include: a second steel plate connected to a side of the roof structure beam; a pair of third steel plates which are parallel up and down and used for clamping and fixing the grid top beam, the third steel plate positioned above the third steel plate is fixedly connected with the bottom of the second steel plate, and the third steel plate is vertically arranged with the second steel plate. Further, the clamp further comprises at least one first steel plate perpendicular to both the second steel plate and the third steel plate located above.

Alternatively, the clamp may also be a reinforcing clamp comprising: a second steel plate connected to a side of the roof structure beam; the pair of third steel plates are parallel up and down and used for clamping and fixing the grid top beam, and the third steel plate positioned above the pair of third steel plates is fixedly connected with the bottom of the second steel plate; and the reinforcing rib plate is fixedly arranged on the upper surface of the third steel plate positioned above and is connected with the bottom of the second steel plate.

Specifically, when one end of the second header beam 204 adjacent to the first header beam 203 is connected to the outside of the roof structure beam 5, a first jig 201 as shown in fig. 10, 29-32 b may be used, and the first jig 201 is a general jig including: a pair of first steel sheet I2011, a I2012 of second steel sheet, a pair of third steel sheet I2013 of parallel from top to bottom, wherein, first steel sheet I is right trapezoid's gusset (as shown in fig. 32 a), second steel sheet I is for being rectangular steel sheet, third steel sheet I also is for being rectangular steel sheet (as shown in fig. 32 b), during the installation, first steel sheet I is perpendicular to be settled with second steel sheet I, and a pair of I parallel and right angle avris fixed mounting of first steel sheet are on second steel sheet I, lie in the steel sheet and first steel sheet I of top in a pair of third steel sheet I, second steel sheet I is perpendicular respectively and with the bottom fixed connection of these steel sheets, the joint strength between a pair of I multiplicable third steel sheet of first steel sheet I and the second steel sheet I. During connection, the steel plates can be connected together in a welding mode, the first steel plate I is fixedly installed on the side face of the roof structure beam 5, the second grid top cross beam 204 is arranged between the pair of third steel plates I, the two sides of the pair of third steel plates I are connected through a plurality of bolts I2014 to fix the second grid top cross beam 204 in a clamping mode (correspondingly, the distance between the bolt holes formed in the pair of third steel plates I is larger than the corresponding size of the grid top cross beam, and the grid top cross beams are connected with the clamp in the mode), the second grid top cross beam 204 can be an I-shaped cross beam, and the grid top cross beams can be of the same structure. When the second steel plate i is fixedly installed on the roof structure beam 5, the second steel plate i can be anchored on the roof structure beam 5 by using a plurality of anchors 2000, for example, using HIT-RE 500 anchoring adhesive and matching with HAS-E screw as an anchor (size M24) to anchor the second steel plate i on the roof structure beam 5, so that the second steel plate i is firmly fixed on the roof structure beam (the connection of each clamp and the roof structure beam 5 can be in the same manner, see fig. 13-18).

When the first grid top cross beam 203 is connected to the roof structure beam 5 located at the middle of the roof, a second clamp 202 as shown in fig. 10 and 32-35 may be used, and the second clamp 202 is also a common clamp, and includes three steel plates, i.e., two pairs of first steel plates ii 2021, a pair of second steel plates ii 2022, and a pair of third steel plates ii 2023, which are connected to the three steel plates of the first clamp in the same manner, except that the second steel plate ii 2022 of the second clamp 202 is a trapezoidal steel plate, i.e., the width of the upper bottom side of the second steel plate ii is greater than the width of the corresponding roof structure beam, and both sides thereof are exposed to the roof structure beam, and the portion exposed to the roof structure beam is similar to the first clamp, and the length of the third steel plate 202ii 3 is longer, so that the lower bottom side of the second steel plate ii can be vertically welded to the third steel plate ii 2023, and the two pairs of first steel plates ii, 2021, b, a pair of second steel plates ii 2022 are respectively located on both sides of the roof structure beam 5. Similarly, a pair of third steel plates ii 2023 are connected and fixed by a plurality of bolts ii 2024 to the first grid cross member 203, and the second steel plates ii are anchored to the side surfaces of the roof structure beams 5 by a plurality of anchor bolts 2000. When the second clamp is manufactured, the first steel plate II 2021 and the second steel plate II 2022 are firstly assembled and welded together in a factory, and after the second clamp is installed on the installation site, the third steel plate II 2023 with the connection relation is welded, so that the problem that the second clamp cannot be installed due to too large civil structure error is solved (the connection of the third steel plates of the clamps can adopt the connection mode).

When the end of the first canopy beam 203 on the inner side of the roof is connected to the roof structure beam 5 on the inner side of the roof, a third jig 210 as shown in fig. 10, 36 to 38 may be used, which has the same structure as the first jig and also includes three kinds of steel plates, i.e., a pair of first steel plates iii 2101, a second steel plate iii 2102, and a pair of third steel plates iii 2103, and the third steel plate iii 2103 is connected to the first canopy beam 203 by a plurality of bolts iii 2104, and the specific structure of the third jig may be referred to the structure of the first jig, which will not be described in detail herein.

When the parts except two ends of the second grid top beam 204 adjacent to the first grid top beam 203 are connected with the corresponding parts of the roof structure beam 5, if the hanging columns 220 are not arranged at the lower part of the second grid top beam 204, the second grid top beam 204 can be connected with the roof structure beam 5 by adopting the structure of the second clamp; when the hanging columns 220 are disposed on the lower portion of the second grid top beam 204, a fourth clamp 211 as shown in fig. 11-15 and 39-41 may be used, and the structure of the fourth clamp 211 is substantially the same as that of the second clamp 202, except that a larger number of bolts are used between a pair of third steel plates of the fourth clamp, the second grid top beam 204 is disposed between a pair of bolts located in the middle of the pairs of bolts connecting the pair of third steel plates, and the lower portions of the bolts pass through the connecting plates of the hanging columns in addition to the third steel plate located below, so as to connect the pair of third steel hanging columns together through the bolts and clamp and fix the second grid top beam 204.

During construction, the connection between one or more second grid top cross beams 204 and the roof structure beam 5 can be reinforced by using a reinforcing clamp as required, for example, as shown in fig. 10, the following reinforcing clamps are respectively used for the connection between a second grid top cross beam 204 close to the first grid top cross beam 203 and the roof structure beam 5 (each clamp is shown in fig. 42-53): a fifth jig 214 for connecting the end portion of the second grid top cross member 204 located on the inner side to the roof structure beam 5 located on the innermost side of the roof, a sixth jig 215 for connecting the end portion of the second grid top cross member 204 located on the outer side to the roof structure beam 5 located on the outermost side of the roof, a seventh jig 216 for connecting the middle portion of the second grid top cross member 204 to the roof structure beam 5 in the middle portion, and an eighth jig 217 for connecting the portion of the second grid top cross member 204 located between the end portion and the middle portion to the corresponding roof structure beam 5.

Wherein, as shown in fig. 42-44, the utility model discloses a fifth anchor clamps 214's structure on the basis of first anchor clamps 201 structure, still increased one and settled deep floor 2148 on the third steel sheet side by side with the second steel sheet, during manufacturing, compare first anchor clamps 201, the width of third steel sheet in the fifth anchor clamps will be wider than the width of first anchor clamps third steel sheet, and the welding has deep floor 2148 of close proximity second steel sheet on the third steel sheet, this deep floor 2148's thickness is the same with the second steel sheet, and splice as an organic whole bottom the second steel sheet, make the both sides surface of deep floor and the both sides surface of second steel sheet be located the coplanar respectively. Further, the width of the steel plate 2145, which is the third steel plate located below, of the pair of third steel plates in the fifth jig is smaller than the width of the third steel plate located above (see fig. 43), and at least one of the bolts for connecting the upper and lower third steel plates is located on a portion of the third steel plate where the gusset plate 2148 is welded.

As shown in fig. 45 to 47, the structure of the sixth clamp 215 of the present invention is substantially the same as that of the fifth clamp 214, except that, since the sixth clamp 215 and the fifth clamp 214 are respectively connected to the outer roof structural beam 5 and the inner roof structural beam 5, the arrangement positions of the reinforcing rib plate of the sixth clamp 215 and the reinforcing rib plate of the fifth clamp 215 on the third steel plate are just opposite (see fig. 43 and 46), and except that, the structure of the sixth clamp is substantially the same, the detailed description of the structure of the sixth clamp is omitted,

if the lower portion of the second grid top beam 204 is provided with the hanging post 220, a reinforcing fixture as shown in fig. 48-50 can be adopted, the fixture is the seventh fixture 216 of the present invention, as can be seen from the figure, the structure of the seventh fixture is based on the fourth fixture, and a pair of reinforcing ribs 2168 (i.e. located on two sides of the roof structure beam) are added on the third steel plate located above the pair of second steel plates side by side respectively, and the arrangement of the reinforcing ribs is basically similar to that of the reinforcing ribs in the fifth fixture, and the detailed description thereof is omitted here. Similarly, the width of the third steel plate on the lower side, i.e., steel plate 2167, is smaller than the width of the third steel plate on the upper side, and one end of the third steel plate on the lower side is level with the end of the third steel plate on the upper side for welding the reinforcing rib plates.

If the lower portion of the second grid top beam 204 is not provided with the hanging post 220, a reinforcing fixture as shown in fig. 51-53 can be adopted, the fixture is an eighth fixture 217 of the present invention, and as can be seen from the figure, the structure of the eighth fixture 217 is substantially the same as that of the seventh fixture, except that the number of bolts used in the eighth fixture is smaller than that of bolts used in the seventh fixture.

The suspension posts 220 fixedly mounted below the corresponding grid top beam are posts which are suspended downwards from the grid top beam along the vertical direction and are used for hoisting the shadowless structure on the posts. When the grid top cross beams are installed, the grid top cross beams are installed below the roof structure beams of a building, then two to three grid steel structure overall dimensions are designed according to the structural appearance of a shadowless structure to be installed, the positions of the hanging columns are arranged, and then the hanging columns are fixed below the corresponding grid top cross beams. Because the grid top beam and the suspension columns are responsible for the load of the whole shadowless structure, the strength of the grid top beam and each suspension column needs to be calculated professionally so as to ensure the overall safety. Meanwhile, the hanging post is an installation post for installing a hanging rod of the light and sound equipment, the hanging rod and the hanging post are installed through a professional shackle, and the shackle can adopt the shackle in the prior art.

The utility model discloses install shadowless structure in bars top transform structure below, it includes: the grid steel structure is arranged below the grid top conversion structure and is used as a main support frame of the shadowless structure; and the steel wire rope frame is arranged on the grid steel structure, and a steel wire rope net formed by weaving steel wire ropes is arranged on the steel wire rope frame.

As shown in fig. 19 to 21, the lattice steel structure includes a plurality of suspension rods correspondingly connected to each suspension post in the lattice top conversion structure, and a plurality of frame beams installed around the bottom of the suspension rods and staggered horizontally and vertically to form a lattice-shaped frame.

The plurality of frame beams include a plurality of groups of frame cross beams extending transversely along the roof and a plurality of groups of frame longitudinal beams extending longitudinally along the roof, the plurality of groups of frame cross beams include a plurality of first cross beams 302 (10 shown in the figure and arranged in parallel longitudinally), a plurality of second cross beams 303 (10 shown in the figure and arranged in parallel longitudinally), a plurality of third cross beams 304 (30 shown in the figure and arranged in parallel longitudinally, each 10 cross beams are arranged in parallel longitudinally), and the first cross beams 302, the second cross beams 303 and the corresponding third cross beams 304 can be sequentially connected end to end along the transverse direction of the roof. The plurality of groups of frame longitudinal beams comprise a plurality of first longitudinal beams 301 (12 longitudinal beams are shown in the figure, every 6 longitudinal beams are arranged in parallel along the transverse direction, two groups of first longitudinal beams are arranged on the two longitudinal sides of the roof), a plurality of second longitudinal beams 305 (42 longitudinal beams are shown in the figure, every 6 longitudinal beams are arranged in parallel along the transverse direction), and the first longitudinal beams and the corresponding plurality of second longitudinal beams are sequentially connected end to end along the longitudinal direction. The cross beams and the longitudinal beams are arranged around each suspension rod, namely, each suspension rod can install the frame cross beams and the frame longitudinal beams in four directions, namely, the upper direction, the lower direction, the left direction and the right direction, so that a large frame with a steel wire rope net plane is formed and is a main supporting frame of the steel wire rope net.

When designing, the suspension posts and the suspension rods are arranged according to the need, as shown in fig. 19-21, suspension rods can be arranged at the intersection points of the longitudinal beams and the corresponding cross beams, such as the suspension rods 320 and 306 at the junctions of the first longitudinal beam 301 and the second longitudinal beam 305 and the corresponding first cross beam 302, the suspension rods 321 at the junctions of the first longitudinal beam 301 and/or the second longitudinal beam 305 and the corresponding first cross beam 302 and second cross beam 303, the suspension rods 321, 320 and 308 at the junctions of the first longitudinal beam 301 and/or the second longitudinal beam 305 and the corresponding second cross beam 303 and the corresponding third cross beam 304, and the suspension rods 320, 319, 307, 316 and 317 at the junctions of the first longitudinal beam 301 and/or the second longitudinal beam 305 and the corresponding third cross beam 304. In addition, still can settle the steel pipe as required between adjacent jib, for example steel pipe 311, steel pipe 310, steel pipe 309, the length extending direction of each steel pipe is unanimous with the extending direction of crossbeam, and is located the top of corresponding crossbeam, and during the connection, accessible aluminum alloy couple 312 hoists the steel pipe both ends on corresponding jib to installation and dismantlement convenient and fast.

During assembly, the connection mode of the longitudinal beams and the cross beams at different positions is slightly different, for example, the connection mode of the first longitudinal beam and the first cross beam at the corner of the steel structure of the grid can adopt the connection mode shown in fig. 22, that is, a suspension rod 306 is fixedly connected with the first longitudinal beam and the first cross beam, and when the first longitudinal beam and the first cross beam are connected, the first cross beam and the first longitudinal beam are fixed on the periphery of the suspension rod at an angle of 90 degrees through a bolt 313, a nut 314 and a gasket 315 (see fig. 24).

When the first longitudinal beam, the second cross beam and the third cross beam are connected in a t-shape, as shown in fig. 23, the first longitudinal beam, the second cross beam and the third cross beam are fixed to the outer periphery of the boom by a bolt 313, a nut 314 and a washer 315 (see fig. 24). When the first longitudinal beam and/or the second longitudinal beam and the second cross beam and/or the third cross beam form a cross-shaped connection, as shown in fig. 24, each beam is also fixed to the periphery of the corresponding boom by a bolt 313, a nut 314 and a washer 315.

Through set up crossbeam and longeron in the position department of being close to outside roof structure roof beam is encrypted, the length of first crossbeam is less than the size of second crossbeam, the length of second crossbeam is less than the length of third crossbeam promptly for the interval that is located between the adjacent longeron in the outside is less than the interval between other adjacent longerons, thereby ensures hoisting equipment's fastness and the security of operating personnel on wire rope net work.

When the hanger bar is connected with each beam, mounting plates with holes (four holes as shown in fig. 25) are respectively welded on the hanger bar and each corresponding beam, and the hanger bar and the corresponding beam are connected together by a method that bolts are inserted through screw holes of the two mounting plates.

After the grid steel structure is formed, a steel wire rope frame is arranged on each grid formed by the grid steel structure, so that a steel wire rope net formed by weaving steel wire ropes is arranged on the steel wire rope frame.

As shown in fig. 26, the wire rope frame is a frame manufactured according to the grid size of the above-mentioned grid steel structure, and mounting holes are drilled in the frame at a predetermined interval (for example, 60 mm) for mounting the wire ropes. When the steel wire mesh grid is installed, the frames are installed on the cross beams corresponding to the steel grid structure (the frames can be connected through the connecting plates), after the frames are installed, a steel wire rope with the outer diameter smaller than 10 millimeters (such as 6 millimeters) penetrates through the installation hole in each frame in the transverse direction, after the transverse steel wire rope is installed, the steel wire rope extending in the longitudinal direction is installed, the steel wire rope is inserted into the transverse steel wire rope during installation, and the steel wire rope is interwoven to form an integral steel wire rope mesh, as shown in fig. 26, the integral steel wire rope mesh (a shadowless structure) can be formed by the steel wire rope meshes 601, 602, 603, 604, 605, 606, 623, 624 and the like distributed on the edges, the corners and the middle positions of the whole steel grid structure and the corresponding.

In addition, all the steel wire ropes on the transverse and longitudinal outer sides of the whole steel wire rope net are provided with steel wire rope tensioning devices which are used for tensioning the corresponding steel wire ropes during installation and use. When the steel wire rope is installed, the steel wire rope is installed through a lantern ring, a lock screw, a connector and the like, and the components can adopt international standard parts adopted when the steel wire rope is installed. In order to prevent the steel wire rope from being damaged due to friction between the steel wire rope and the frame structure, a nylon sleeve 610 shown in fig. 27 can be sleeved outside the steel wire rope, and the nylon sleeve 610 is fixed on the corresponding frame through a bolt 607, a nut 608 and a gasket 609. In addition, a pedal, a cover plate and the like can be arranged on the steel wire rope frame. For example, in order to accommodate more workers or convenient installation of heavy objects, a first pedal 611 and a second pedal 612 as shown in fig. 26 may be placed on the cable frame, and then, the workers, heavy objects, etc. may be installed on the pedals, which is safer and does not damage the cable net. The pedal can adopt a frame structure, a steel wire mesh is arranged on the frame, and the position of the pedal on the steel wire rope frame can be moved according to actual use requirements. Because when installing wire rope at the wire rope frame, there is the tool to lock turnbuckle at wire rope's installation initiating terminal, and this will make this region can not supply the staff to walk, in order to solve this problem, the utility model discloses correspond regional department at the tool to lock turnbuckle and set up one or more apron through bolt and corresponding frame attach, for example, can be as shown in fig. 28, set up first apron 613, second apron 614, third apron 615 respectively in wire rope frame's corner, cover the region of installing the tool to lock turnbuckle through three apron. When placed, the cover plates are typically placed around the entire shadowless structure.

The utility model discloses a shadowless net equipment can satisfy celebration, singing and dancing, the dramatic performance of diversification day by day, and stage performance mode requirements such as large-scale activity have changed use limitations such as more and more theatre, concert hall, art center, exhibition room. The utility model discloses a shadowless net equipment is whole to adopt the davit to bear, is connected on roof structure roof beam by the davit, bears the grid steel construction of wire rope net just so and can adopt the steel construction of small dimension, avoids spectator to wear group and polish the problem. In addition, the steel structure grid top is laid with a grid plate between large steel structures, the grid plate is formed by orthogonally combining bearing flat steel and cross bars according to a certain distance, and the height of the flat steel is usually 30-40 mm. And the utility model discloses the wire rope net is woven by several millimeters (like 6 millimeters) wire rope and is formed, and the difference in height is very big, and light is beaten after passing several millimeters wire rope and can not have any shadow completely in the theater, and this kind of effect is that steel construction grid plate can not reach completely. Because of this, the lighting from the shadowless steel wire net can reach a greater possibility in the process of the performance. Compared with the prior art, the light of steel construction grid top installation will receive can only in fixed position with the interference of large-scale steel construction, greatly influences light effect, and the utility model discloses a perfect solution this problem of shadowless structure, it makes light sound equipment can be nearly random position installation, makes light not disturbed by any structure, reaches more perfect performance effect.

To sum up, the utility model discloses a shadowless net equipment has following outstanding advantage:

1. the utility model discloses shadowless net equipment can satisfy celebration, singing dance, drama performance diversified day by day, and stage performance mode requirements such as large-scale activity have changed use limitations such as more and more theatre, concert hall, art center, exhibition room, and shadowless net equipment can not produce the shadow because of stage lighting for spectator sees the wire rope net hardly when watching the performance in whole building, improves the viewing effect.

2. The utility model discloses shadowless net equipment does not have dimensional requirement to the installation space of shadowless net equipment: the device can be installed in theaters, multifunctional halls, concert halls and meeting rooms; the device can be arranged above auditorium and above performance; the size of the installation space is not limited, and the multifunctional hall with a small area or the theater with a large area can be installed.

3. The utility model discloses a shadowless net equipment, the enough powerful of intensity of wire rope net, every square meter load can reach two hundred kilograms per square meter, can bear stereo set and lighting equipment without pressure, also can bear the normal installation of several staff and overhaul, need not set up fixed position's personnel position, can go to at will in the whole wire rope net.

4. The utility model discloses shadowless net equipment, all lamp poles can all be installed on the davit that bears the weight of the wire rope net, and this provides the installation possibility of very much light audio equipment, and the user can require to arrange various light audio equipment on whole wire rope net in a flexible way according to the difference of performance, this great improvement the effect of performance.

5. The utility model discloses a shadowless net equipment can install the electric block of great load at hoisting point roof beam structure, and these electric blocks can be more convenient use in the installation of light stereo equipment.

Although the present invention has been described in detail, the present invention is not limited thereto, and those skilled in the art can modify the principle of the present invention, and therefore, various modifications performed according to the principle of the present invention should be understood as falling into the protection scope of the present invention.

Claims (10)

1. A shadowless net apparatus, comprising:

the hoisting point beam structure is arranged on a roof structure beam of a building and used for hoisting the electric hoist through the hoisting point beam structure;

the grid top conversion structure is arranged on the roof structure beam and positioned below the lifting point beam structure and is used for supporting the shadowless structure through the grid top conversion structure;

the shadowless structure is arranged below the grid top conversion structure and provided with a steel wire rope net woven by steel wire ropes, and is used for bearing workers and/or performance equipment through the shadowless structure.

2. The shadowless net apparatus of claim 1 wherein the suspension point beam structure comprises:

a lifting point beam cross-beam mounted between adjacent structural beams of a building roof structural beam;

a circular tube fixedly arranged below the beam of the hoisting point beam;

wherein, hoist and mount electric block through the pipe.

3. The shadowless screen apparatus of claim 1 wherein the grid-top switching structure comprises:

a grid top beam mounted below the building roof structure beam;

and the suspension posts are fixedly arranged below the grid top cross beam and used for hoisting the shadowless structure.

4. The shadowless screen apparatus of claim 3 wherein the grid-top switching structure further comprises:

and the fixture is used for connecting the grid top cross beam with the bottom of the corresponding roof structure beam.

5. The shadowless net apparatus of claim 4, wherein the clamp is a common clamp comprising:

a second steel plate connected to a side of the roof structure beam;

a pair of third steel plates which are parallel up and down and used for clamping and fixing the grid top beam, and the third steel plate positioned above the third steel plate is fixedly connected with the bottom of the second steel plate.

6. The shadowless screen apparatus of claim 5 wherein the third steel plate is positioned perpendicular to the second steel plate.

7. The shadowless screen apparatus of claim 6 wherein the clamp further comprises at least one first steel plate perpendicular to both the second steel plate and the third steel plate above.

8. The shadowless web apparatus of claim 7 wherein the clamp is a reinforcing clamp comprising:

a second steel plate connected to a side of the roof structure beam;

the pair of third steel plates are parallel up and down and used for clamping and fixing the grid top beam, and the third steel plate positioned above the pair of third steel plates is fixedly connected with the bottom of the second steel plate;

and the reinforcing rib plate is fixedly arranged on the upper surface of the third steel plate positioned above and is connected with the bottom of the second steel plate.

9. The shadowless web device of claim 1, wherein the shadowless structure comprises:

the grid steel structure is arranged below the grid top conversion structure and is used as a main support frame of the shadowless structure;

and the steel wire rope frame is arranged on the grid steel structure, and a steel wire rope net formed by weaving steel wire ropes is arranged on the steel wire rope frame.

10. The shadowless net apparatus of claim 9 wherein the wire rope has a diameter of 5 to 8 mm.

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