Portable hoisting equipment for constructing drama stage

Abstract

The invention discloses portable hoisting equipment for constructing a drama stage, and relates to the technical field of hoisting equipment. A suspension structure is installed on the top plate, symmetrical front supporting rods are installed on one side of the top plate, and symmetrical rear supporting rods are installed on the other side of the top plate. Lifting structures are installed in the rear supporting rods, and a supporting structure is installed between the rear supporting rods. The supporting structure comprises a first-stage supporting plate and a second-stage supporting plate; the two sides of the first-stage supporting plate are rotationally connected with the two rear supporting rods correspondingly, a supporting ring is arranged between the first-stage supporting plate and the second-stage supporting plate, and a rotating disc is installed on the supporting ring. The supporting ring is rotationally connected with the first-stage supporting plate and the second-stage supporting plate on the two sides, a transverse rod is connected between the front supporting rod and the rear supporting rod, and the end, away from the first-stage supporting plate, of the second-stage supporting plate is slidably connected with the transverse rod. According to the device, hoisting and transferring work can be completed at a time, the transferring process is safe and stable, and operation convenience is improved.

Description

Technical Field

[0001] The invention relates to the technical field of hoisting equipment, in particular to a portable hoisting equipment for building a theatrical stage. Background Art

[0002] Drama is a general term for stage performing arts that use language, action, dance, music, puppets, etc. to achieve narrative purposes. The concept of drama in literature refers to the script created for theatrical performances, that is, the play. There are many different forms of drama performances, the most common of which include drama, opera, ballet, musical, puppet show, shadow play, etc. Drama is a comprehensive art form in which actors play roles and perform stories in public on stage. Drama is an art form in which actors perform a story or situation in the form of dialogue, singing or action. Drama has four elements, including actors, stories, stage and audience.

[0003] The stage is a space provided for actors to perform in a theater. It can focus the audience's attention on the actors' performances and achieve an ideal viewing effect. The stage is usually composed of one or more platforms, some of which can be raised and lowered. With the development of modern technology, the stage itself not only serves as a platform, but also has more auxiliary performance effects, such as adjusting the shape of the stage, providing light and shadow assistance for the stage, or setting up special environments such as smoke and rain. In order to achieve a good stage performance effect, the stage construction not only requires a large amount of building materials for basic construction, but also requires a large number of various equipment. This type of equipment is large in size, and according to the needs of different performances, the position must be adjusted. Therefore, hoisting equipment is often needed for stage construction and equipment transportation.

[0004] Commonly used lifting equipment can lift construction materials or equipment to a certain height by suspension, transfer them to transfer equipment, and unload them again after transferring to a designated location. Some lifting equipment itself also has the effect of transferring within a certain range. However, the use of lifting equipment in conjunction with transfer equipment requires multiple loading and unloading and the coordination of multiple equipment. If it is used unchanged, if it is directly transferred in the form of lifting, problems such as shaking may occur during transportation, which may cause damage to the equipment. Summary of the invention

[0005] The purpose of the present invention is to provide a convenient hoisting device for theatrical stage construction to solve the problems raised in the above background technology. A device is proposed that can take into account both hoisting and transportation, and can stably support the transported items during transportation, thereby improving the safety of use.

[0006] To achieve the above object, the present invention provides the following technical solutions: A portable hoisting device for building a theatrical stage comprises a top plate and a suspension structure; the top plate is provided with a suspension structure, a symmetrical front support rod is provided on one side of the top plate, and a symmetrical rear support rod is provided on the other side; a lifting structure is provided inside the rear support rod, and a supporting structure is provided between the rear support rods; the supporting structure comprises a primary support plate and a secondary support plate; the two sides of the primary support plate are rotatably connected with two rear support rods respectively, a supporting ring is provided between the primary support plate and the secondary support plate, and a turntable is provided on the supporting ring; the supporting ring is rotatably connected with the primary support plate and the secondary support plate on both sides respectively, a cross bar is connected between the front support rod and the rear support rod, and the end of the secondary support plate away from the primary support plate is slidably connected with the cross bar; The lifting structure includes a control rod, one end of which is slidably connected to the rear support rod. The lifting structure is used to adjust the height of the end of the control rod connected to the rear support rod, and the other end of the control rod is rotationally connected to the edge of the primary support plate.

[0007] As a further solution of the present invention: a primary connecting rod and a primary supporting rod are respectively arranged at both ends of the primary supporting plate, the primary connecting rod is connected to the rear supporting rod, a secondary connecting rod and a secondary supporting rod are respectively arranged on both sides of the secondary supporting plate, the secondary connecting rod is far away from the primary supporting plate, a sliding groove is opened on the cross bar, and the secondary connecting rod is inserted into the sliding groove.

[0008] As a further solution of the present invention: one end of the slide groove close to the rear support rod is inclined toward the top plate, a support bar is connected to the inner side of the cross bar, the first-level support rod and the second-level support rod are placed on the support bar, an auxiliary rod is connected between the first-level support rod and the second-level support rod, and the second-level support rod is connected to the control rod.

[0009] As a further solution of the present invention: a plurality of telescopic rods are connected to a side of the support ring away from the top plate, a connecting plate is connected between the telescopic rods, a primary motor is installed in the middle of the connecting plate, the primary motor is connected to a turntable, and a gasket made of flexible material is provided on the surface of the turntable.

[0010] As a further solution of the present invention: the lifting structure includes a lifting screw rod vertically installed inside the rear support rod, a lifting screw sleeve is threadedly connected to the lifting screw rod, a vertical limiting groove is opened on the inner side of the rear support rod, the control rod passes through the limiting groove and is connected to the lifting screw sleeve, a secondary motor is installed on the top plate, and the secondary motor is connected to the lifting screw rod.

[0011] As a further solution of the present invention: a reinforcement rod is connected between the rear support rods, and universal wheels are installed on the front support rods and the rear support rods.

[0012] As a further solution of the present invention: the suspension structure includes a horizontal screw rod, which is rotatably installed on the surface of the top plate, and a three-stage motor connected to the horizontal screw rod is installed at one end of the top plate, and a through groove corresponding to the position of the horizontal screw rod is opened on the top plate, and a horizontal screw sleeve is threadedly connected to the horizontal screw rod, and the horizontal screw sleeve passes through the through groove to be connected to the mounting frame.

[0013] As a further solution of the present invention: a four-pole motor is installed on the mounting frame, the four-pole motor is connected to a winding wheel, a sling is wound around the winding wheel, the sling is connected to a hook, a positioning ring is installed on the mounting frame, and the sling passes through the positioning ring.

[0014] Compared with the prior art, the present invention has the following beneficial effects: By using the above-mentioned convenient hoisting equipment for theatrical stage construction, the device can be moved to the corresponding object when in use. After the object is suspended in mid-air, the primary support plate and the secondary support plate originally located at the rear of the device and in a folded state are spread forward, and the primary support plate, the secondary support plate and the turntable together form a plane, and the object can be placed on this plane for transportation, and the suspended part does not need to be disassembled during transportation. After transporting to the designated location, the object is hoisted again, and the supporting structure is folded up, and the object can be placed in the corresponding position. The device can use a single device to complete the two tasks of suspension and transportation, reducing the demand for equipment, while reducing the process of repeated loading and unloading in the middle, improving work efficiency, and the device also effectively avoids the problem of shaking or collision with surrounding structures that may occur when the object is transported in a suspended state, effectively providing full protection for the equipment; The above-mentioned convenient lifting equipment for building a theatrical stage is adopted. A supporting ring is arranged in the middle of the supporting structure of the device. The turntable in the supporting ring can be raised and rotated. After placing the object on the surface of the supporting structure, the angle of the object can be adjusted by rotating the turntable. When the activity range of the device is limited, the direction of the object placement can be directly changed, thereby reducing the workload of adjusting the object in the suspended state and reducing the difficulty of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the structure of the convenient lifting equipment used to build a theatrical stage.

[0016] Figure 2 This is a schematic diagram of the structure of the portable lifting equipment for theatrical stage construction in the folded state.

[0017] Figure 3 This is a schematic diagram of the structure of the supporting structure and the lifting structure of the portable lifting equipment used for theatrical stage construction.

[0018] Figure 4This is a schematic diagram of the supporting structure of the portable lifting equipment used to build a theatrical stage.

[0019] Figure 5 This is a schematic diagram of the suspension structure of a portable hoisting device used to build a theatrical stage.

[0020] Figure 6 This is a schematic diagram of the structure of the crossbar in the convenient lifting equipment used to build a drama stage.

[0021] In the figure: 1, top plate; 11, through slot; 12, rear support rod; 121, limit slot; 13, front support rod; 14, universal wheel; 15, cross bar; 151, slide slot; 152, support bar; 16, reinforcement rod; 2, suspension structure; 21, three-stage motor; 22, horizontal screw sleeve; 23, horizontal screw rod; 24, mounting frame; 25, four-stage motor; 26, winding wheel; 27, positioning ring; 28, sling; 29, hook; 3 , lifting structure; 31, secondary motor; 32, control rod; 33, lifting screw; 34, lifting screw sleeve; 4, supporting structure; 41, primary support plate; 411, primary connecting rod; 412, primary support rod; 42, secondary support plate; 421, secondary connecting rod; 422, secondary support rod; 43, supporting ring; 44, turntable; 441, washer; 45, auxiliary rod; 46, telescopic rod; 47, connecting plate; 48, primary motor. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figures 1 to 6 In an embodiment of the present invention, a portable hoisting device for building a theatrical stage comprises a top plate 1 and a suspension structure 2; the top plate 1 is provided with a suspension structure 2, a symmetrical front support rod 13 is provided on one side of the top plate 1, and a symmetrical rear support rod 12 is provided on the other side; a lifting structure 3 is provided inside the rear support rod 12, and a supporting structure 4 is provided between the rear support rods 12; the supporting structure 4 comprises a primary support plate 41 and a secondary support plate 42; the primary support plate 41 is rotatably connected to the two rear support rods 12 on both sides, a supporting ring 43 is provided between the primary support plate 41 and the secondary support plate 42, and a turntable 44 is provided on the supporting ring 43; the supporting ring 43 is rotatably connected to the primary support plates 41 and the secondary support plates 42 on both sides, a cross bar 15 is connected between the front support rod 13 and the rear support rod 12, and the end of the secondary support plate 42 away from the primary support plate 41 is slidably connected to the cross bar 15; The lifting structure 3 includes a control rod 32, one end of which is slidably connected to the rear support rod 12. The lifting structure 3 is used to adjust the height of the end of the control rod 32 connected to the rear support rod 12, and the other end of the control rod 32 is rotatably connected to the edge of the primary support plate 41.

[0024] This device uses the front support rod 13 and the rear support rod 12 to set up the top plate 1 at a high place, and the suspension structure 2 is installed on the top plate 1 to suspend the objects from a high place. A support structure 4 is installed between the rear support rods 12, and the support structure 4 is composed of a primary support plate 41 and a secondary support plate 42. A platform composed of a support ring 43 and a turntable 44 is connected between the primary support plate 41 and the secondary support plate 42. Before use, the secondary support plate 42 is pulled by the lifting structure 3, and the secondary support plate 42 can be folded and put away. When in use, move this device to the place where the objects are needed to build the stage, suspend the objects in mid-air, and then lower the position of the control rod 32 through the lifting structure 3 to unfold the secondary support plate 42. The primary support plate 41, the secondary support plate 42 and the turntable 44 together form a flat platform, and the suspended objects can be moved downward and placed on this platform.

[0025] This device can control the suspension and lowering of items, and can also directly transfer items. The transfer process is safe and stable without shaking or collision. Using one device to complete the lifting and transfer tasks at the same time is more efficient, has lower equipment costs, and is safer.

[0026] As another embodiment of the present invention, please refer to Figure 2 , Figure 3 , Figure 4 and Figure 6The first-level support plate 41 is provided with a first-level connecting rod 411 and a first-level supporting rod 412 at both ends, the first-level connecting rod 411 is connected to the rear supporting rod 12, and the second-level connecting rod 421 and the second-level supporting rod 422 are provided at both sides of the second-level supporting plate 42, the second-level connecting rod 421 is far away from the first-level supporting plate 41, and the cross bar 15 is provided with a slide groove 151, and the second-level connecting rod 421 is inserted into the slide groove 151. The first-level connecting rod 411 is used to connect the rear supporting rod 12, and the second-level connecting rod 421 is inserted into the slide groove 151, so that the outer end of the second-level supporting plate 42 always moves on the same horizontal line. When the control rod 32 pulls the inner end of the second-level supporting plate 42, the first-level supporting plate 41 and the second-level supporting plate 42 will produce a folding effect, and the supporting structure 4 will be retracted, so that the hoisted objects can be directly hoisted and lowered under the suspension structure 2. In the present device, the spacing between the primary support rod 412 and the primary connecting rod 411 is smaller than the spacing between the secondary support rod 422 and the secondary connecting rod 421, and the rotation connection axis of the support ring 43 and the primary support plate 41 coincides with the axis of the primary support rod 412, and the rotation connection axis of the support ring 43 and the secondary support plate 42 coincides with the axis of the secondary support rod 422. After the control rod 32 raises and folds the secondary support plate 42, the height of the secondary support rod 422 is significantly higher than the height of the primary support rod 412, and the support ring 43 and the turntable 44 are in a tilted state in the folded state to avoid occupying too much horizontal space.

[0027] See also Figure 2 , Figure 3 , Figure 4 and Figure 6 The end of the slide 151 close to the rear support rod 12 is inclined toward the top plate 1, and the inner side of the cross bar 15 is connected with a support bar 152, and the primary support rod 412 and the secondary support rod 422 are placed on the support bar 152. An auxiliary rod 45 is connected between the primary support rod 412 and the secondary support rod 422, and the secondary support rod 422 is connected to the control rod 32. The slide 151 is used to limit the moving track of the secondary connecting rod 421, so that the rear end of the slide 151 is inclined. After the secondary support rod 422 is raised, the secondary connecting rod 421 is in a position that is approximately suspended, which can better create the height difference between the two ends of the support ring 43. At the same time, when the control rod 32 pushes the secondary support plate 42 to unfold again, it can also make the sliding of the secondary connecting rod 421 smoother, avoiding the jamming caused by the excessive angle between the force direction and the slide 151. The auxiliary rod 45 is used to strengthen the connection between the primary support plate 41 and the secondary support plate 42, and enhance the supporting effect. The protruding parts of the primary support rod 412 and the secondary support rod 422 are placed on the support bar 152 to prevent the middle area of ​​the support structure 4 from sinking after bearing the load.

[0028] See also Figure 4The support ring 43 is connected to a side away from the top plate 1 with a plurality of telescopic rods 46, and a connecting plate 47 is connected between the telescopic rods 46. A primary motor 48 is installed in the middle of the connecting plate 47, and the primary motor 48 is connected to the turntable 44. A gasket 441 made of a flexible material is provided on the surface of the turntable 44. The primary motor 48 is connected to the turntable 44. When the direction of the object placed on the turntable 44 needs to be changed, the turntable 44 is lifted by the telescopic rod 46, and the turntable 44 is driven to rotate by the primary motor 48 to change the direction of the object. The gasket 441 is used to increase friction resistance to prevent the object from sliding. The telescopic rod 46 can be a hydraulic rod, a cylinder or an electric push rod, as well as other mechanical structures with a telescopic effect.

[0029] See also Figure 1 and Figure 4 The lifting structure 3 includes a lifting screw 33 vertically installed inside the rear support rod 12, a lifting screw sleeve 34 is threadedly connected to the lifting screw 33, a vertical limit groove 121 is opened inside the rear support rod 12, the control rod 32 passes through the limit groove 121 and is connected to the lifting screw sleeve 34, and a secondary motor 31 is installed on the top plate 1, and the secondary motor 31 is connected to the lifting screw 33. The secondary motor 31 drives the lifting screw 33 to rotate, and the lifting screw sleeve 34 moves up and down under the action of the lifting screw 33, generating traction on the control rod 32 to control the movement of the support structure 4. The lifting structure 3 of this device is not a restrictive structure. In addition to using the lifting screw 33 to control the lifting, since the lifting stroke length is much smaller than the length of the rear support rod 12, a hydraulic rod or other similar telescopic rod mechanism can also be used internally to directly control it.

[0030] See also Figure 1 and Figure 2 A reinforcing rod 16 is connected between the rear support rods 12, and universal wheels 14 are installed on the front support rods 13 and the rear support rods 12. The reinforcing rod 16 increases the stability of the overall mechanism, and the universal wheels 14 enable the device to move.

[0031] See also Figure 1 , Figure 2 and Figure 5 The suspension structure 2 includes a horizontal screw rod 23, which is rotatably mounted on the surface of the top plate 1. A three-stage motor 21 connected to the horizontal screw rod 23 is mounted at one end of the top plate 1. A through slot 11 corresponding to the position of the horizontal screw rod 23 is opened on the top plate 1. A horizontal screw sleeve 22 is threadedly connected to the horizontal screw rod 23, and the horizontal screw sleeve 22 passes through the through slot 11 to connect to the mounting frame 24. The horizontal screw rod 23 is driven by the three-stage motor 21, so that the horizontal screw sleeve 22 can move in parallel and drive the mounting frame 24 below, so that the device can drive the suspended objects to move within a small range and adjust the placement position.

[0032] See also Figure 1 , Figure 2 and Figure 5 A four-pole motor 25 is mounted on the mounting frame 24, and the four-pole motor 25 is connected to a winding wheel 26. A sling 28 is wound around the winding wheel 26, and the sling 28 is connected to a hook 29. A positioning ring 27 is mounted on the mounting frame 24, and the sling 28 passes through the positioning ring 27. The four-pole motor 25 controls the winding wheel 26 to release and reel in the sling 28, and the sling 28 controls the height of the hook 29. The hook 29 can directly hook the object to be hoisted, or be controlled together with other hoisting belts, and the hook 29 can also be replaced with other clamping tools.

[0033] The working principle of the present invention is: The device has a suspension structure 2 installed on the top plate 1, and the front support rod 13 and the rear support rod 12 are used as support below the top plate 1. A support structure 4 is arranged between the rear support rods 12, and the support structure 4 is composed of a primary support plate 41 and a secondary support plate 42. A support ring 43 is also arranged between the primary support plate 41 and the secondary support plate 42, and a turntable 44 is installed in the support ring 43. The outer end of the primary support plate 41 is connected to the rear support rod 12, and the outer end of the secondary support plate 42 is slidably connected to the cross bar 15 between the front support rod 13 and the rear support rod 12. The lifting structure 3 inside the rear support rod 12 controls the position of the secondary support plate 42. The secondary support plate 42 is lifted up by the lifting structure 3 and folded in the rear area, so that the device can lift the items. After lifting, the support structure 4 is unfolded, which can be used to place the items for transportation. After arriving at the corresponding location, the items are lifted up again and lifted up, and the support structure 4 is folded up, so that the items can be placed in the appropriate position.

[0034] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. Portable hoisting equipment for drama stage construction, characterized in that: It comprises a top plate and a suspension structure; the top plate is installed with a suspension structure, a symmetrical front support rod is installed on one side of the top plate, and a symmetrical rear support rod is installed on the other side; a lifting structure is installed inside the rear support rod, and a supporting structure is installed between the rear support rods; the supporting structure comprises a primary support plate and a secondary support plate; the two sides of the primary support plate are rotatably connected with the two rear support rods respectively, a supporting ring is provided between the primary support plate and the secondary support plate, and a turntable is installed on the supporting ring; the supporting ring is rotatably connected with the primary support plate and the secondary support plate on both sides respectively, a cross bar is connected between the front support rod and the rear support rod, and the end of the secondary support plate away from the primary support plate is slidably connected with the cross bar; The lifting structure includes a control rod, one end of which is slidably connected to the rear support rod. The lifting structure is used to adjust the height of the end of the control rod connected to the rear support rod, and the other end of the control rod is rotationally connected to the edge of the primary support plate.

2. The portable hoisting equipment for drama stage construction according to claim 1 is characterized in that: A primary connecting rod and a primary supporting rod are respectively arranged at both ends of the primary supporting plate, the primary connecting rod is connected to the rear supporting rod, a secondary connecting rod and a secondary supporting rod are respectively arranged on both sides of the secondary supporting plate, the secondary connecting rod is far away from the primary supporting plate, a sliding groove is opened on the cross bar, and the secondary connecting rod is inserted into the sliding groove.

3. The portable hoisting equipment for drama stage construction according to claim 2 is characterized in that: One end of the slide groove close to the rear support rod is inclined toward the top plate, a support bar is connected to the inner side of the cross bar, the primary support rod and the secondary support rod are placed on the support bar, an auxiliary rod is connected between the primary support rod and the secondary support rod, and the secondary support rod is connected to the control rod.

4. The portable hoisting equipment for drama stage construction according to claim 3 is characterized in that: A plurality of telescopic rods are connected to a side of the support ring away from the top plate, a connecting plate is connected between the telescopic rods, a primary motor is installed in the middle of the connecting plate, the primary motor is connected to a turntable, and a gasket made of a flexible material is arranged on the surface of the turntable.

5. The portable hoisting equipment for drama stage construction according to claim 1 is characterized in that: The lifting structure includes a lifting screw rod vertically installed inside the rear support rod, a lifting screw sleeve is threadedly connected to the lifting screw rod, a vertical limiting groove is opened on the inner side of the rear support rod, the control rod passes through the limiting groove and is connected to the lifting screw sleeve, a secondary motor is installed on the top plate, and the secondary motor is connected to the lifting screw rod.

6. The portable hoisting equipment for drama stage construction according to claim 1 is characterized in that: A reinforcement rod is connected between the rear support rods, and universal wheels are installed on the front support rods and the rear support rods.

7. The portable hoisting equipment for drama stage construction according to claim 1 is characterized in that: The suspension structure includes a horizontal screw rod, which is rotatably mounted on the surface of the top plate. A three-stage motor connected to the horizontal screw rod is installed at one end of the top plate. A through groove corresponding to the position of the horizontal screw rod is opened on the top plate. A horizontal screw sleeve is threadedly connected to the horizontal screw rod, and the horizontal screw sleeve passes through the through groove to connect to the mounting frame.

8. The portable hoisting equipment for drama stage construction according to claim 7 is characterized in that: A four-pole motor is installed on the mounting frame, the four-pole motor is connected to a winding wheel, a sling is wound around the winding wheel, the sling is connected to a hook, a positioning ring is installed on the mounting frame, and the sling passes through the positioning ring.

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