A lifting stage with a guide column for synchronous lifting to realize large stroke lifting

Abstract

A lifting stage with large stroke lifting is realized by using guide column synchronous lifting, which comprises a corresponding number of steel casings, fixed guide columns and lifting columns, the steel casings are embedded in the base, the fixed guide columns are located above the steel casings and are fixed to the base through the column mounting frame, a set of retaining wheel groups are arranged on the fixed guide column respectively, the lifting column passes through the inside of the fixed guide column and the outside surface is in abutment with the retaining wheel, the top of the lifting column is sequentially provided with a table frame and a stage surface, the left side of the base is provided with a left drive unit and a left winding drum, and the right side is provided with a right drive unit and a right winding drum. The lifting stage can realize large stroke lifting, the column lifting mode can reduce the construction amount of the whole stage warehouse, reduce the early manual investment, the retaining wheel group is composed of independent wheel groups, which is convenient for adjustment and ensures the accuracy.

Description

Technical Field

[0001] This invention relates to the field of stage equipment technology, and in particular to a lifting stage that utilizes guide columns for synchronous lifting to achieve a large-stroke lifting and lowering. Background Technology

[0002] As living standards continue to improve, audiences have higher and higher requirements for the effects of artistic performances, and the stage used for performances plays an important role in the performance effect.

[0003] Common lifting stages typically utilize a traction-type lifting mechanism. Guide wheels and lifting wheels are evenly distributed around the lower perimeter of the stage frame, while several fixed guide rails are installed around the perimeter. Essentially, the entire frame stage is nested within a longitudinal area enclosed by these guide columns to ensure smooth lifting. However, this traction-type lifting method is prone to stage swaying during the lifting process, requiring a significant amount of clearance between the lifting stage and the surrounding fixed stage. Therefore, this type of lifting stage is unsuitable for stages requiring large travel distances or wide surfaces. Summary of the Invention

[0004] To address the above needs, this invention provides a lifting stage that utilizes guide columns for synchronous lifting to achieve large-stroke lifting. This column-type lifting method reduces the overall construction workload of the stage, minimizes initial manual labor, and ensures that each wheel assembly consists of an independent wheel set, facilitating adjustment and guaranteeing accuracy.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A lifting stage that utilizes guide columns for synchronous lifting to achieve large-stroke lifting includes a corresponding number of steel protective barrels, fixed guide columns, and lifting columns. The steel protective barrels are deeply embedded in a base. The fixed guide columns are located above the steel protective barrels and are fixed to the base via column mounting brackets. The fixed guide columns are hollow frame trusses that penetrate the steel protective barrels. A set of retaining wheels, including a certain number of retaining wheels, is installed above and below the fixed guide columns. The lifting columns pass through the interior of the fixed guide columns, with their outer surfaces abutting against the retaining wheels. A platform frame and a stage surface are sequentially installed on the top of the lifting columns. A first lifting wheel and a second lifting wheel are arranged side-by-side on both sides below the lifting columns. Correspondingly, a first steering pulley and a second steering pulley are installed on both sides of the fixed guide columns. A left drive unit and a left drum are located on the left side of the base, and a right drive unit and a right drum are located on the right side. A number of traction ropes corresponding to the number of lifting columns are installed. One end of each traction rope is fixed to the left drum, passes through the first steering pulley, the first lifting wheel, the second lifting wheel, and the second steering pulley, and the other end is fixed to the right drum. The traction rope forms a traction lifting / lowering circuit. With one or both of the left and right drive units working, the lifting column and the stage surface above it can be raised and lowered.

[0007] Preferably, brakes are provided between the left drive unit and the left drum, and between the right drive unit and the right drum, to ensure the safety of the actors on the stage.

[0008] Preferably, the lifting column is connected to at least one pair of counterweights, and the upper part of the fixed guide column is provided with a number of counterweight steering rope pulleys corresponding to the number of counterweights. The ropes on the counterweights are connected to the lifting column through the counterweight steering rope pulleys. The counterweights can counteract the gravity of the lifting column and its upper mechanism during operation, making the operation more stable and safer.

[0009] Preferably, the lower part of the counterweight block is provided with at least two counterweight guide wheels that abut against the inner wall of the steel protective barrel. The wheel surface of the guide wheels can be configured as a convex arc-shaped surface.

[0010] Preferably, a guardrail is provided at least on the rear side of the stage surface.

[0011] Preferably, a projection screen is suspended from the front side of the stage frame. The projection screen is foldable, which can reduce the depth of the pit and enrich the image of the stage background.

[0012] Preferably, a partition is provided between the projection cloth and the fixed guide column to provide a safety isolation function.

[0013] Preferably, the column mounting frame is provided with multi-groove guide pulleys on both sides, so that the traction ropes of different lifting columns maintain a certain distance.

[0014] Preferably, the lifting columns are arranged in a single row or multiple rows in an array. When the stage width is less than 2.5m, a single row of lifting columns is used to achieve stage lifting. When the stage width is greater than 2.5m, multiple rows of lifting columns can be set to achieve stage lifting. For each additional row of lifting columns, a corresponding drive unit is installed.

[0015] Preferably, the lifting column is a square truss type, meaning its four corners are right angles. Correspondingly, the hollow area of ​​the fixed guide column is square. Each set of retaining wheels includes eight retaining wheels, arranged in four pairs at the four corners of the square area. The axles of each pair of retaining wheels are perpendicular to each other, forming right-angle limits. The four upper right-angle limits correspond one-to-one with the four lower right-angle limits, and the four corners of the lifting column are located within the right-angle limits.

[0016] The advantages of this invention are: 1. It can achieve large-stroke lifting, and the column lifting method can reduce the construction amount of the entire platform and reduce the initial labor input;

[0017] 2. Keep the wheelsets composed of independent wheelsets to facilitate adjustment and ensure accuracy;

[0018] 3. During the limiting process of the wheel set, the square tube of the lifting column is kept in rolling friction, which can reduce resistance, save energy and protect the environment, make maintenance simple, not easy to wear, have a long service life, and is not easy to jam during the lifting process, making the lifting smoother.

[0019] 4. The stage lifting method of simultaneous lifting of multiple lifting columns is different from the stage lifting method of the whole frame. The multi-column lifting method can prevent the stage surface from shaking while maintaining the action of the wheel group. It can also avoid the stage surface from tilting significantly when the load is unevenly distributed.

[0020] 5. Set up a left drive unit and a right drive unit. Fix the same section of steel wire rope between the left and right drums to lift the corresponding column. This can serve as a backup for each other. If one of the drive unit motors fails, the brake of the faulty motor can be manually released to slowly restore the stage to its initial state, ensuring the safety of the actors entering and leaving the stage.

[0021] 6. The foldable projection screen can reduce the depth of the pit, and the partition can serve as a safety barrier. On the other hand, it can also enrich the stage background and add color to the stage performance. Attached Figure Description

[0022] Figure 1 This is the front view of the invention (stage raised).

[0023] Figure 2 This is a side view of the invention (stage raised).

[0024] Figure 3This is a front view of the fixed guide post of the present invention;

[0025] Figure 4 This is a side view of the fixed guide post of the present invention;

[0026] Figure 5 for Figure 3 Sectional view along the middle AA direction;

[0027] Figure 6 for Figure 4 Sectional view along the BB direction;

[0028] Figure 7 for Figure 2 A cross-sectional view along the CC direction.

[0029] Explanation of key component symbols in the diagram:

[0030] Central Area: 1. Steel protective barrel; 2. Fixed guide column; 3. Lifting column; 4. Column mounting bracket; 5. Holding wheel assembly; 5.1 Holding wheel; 5.2 Right-angle limit switch; 6. Stage frame; 7. Stage surface; 8. First lifting wheel; 9. Second lifting wheel; 10. First steering rope wheel; 11. Second steering rope wheel; 12. Left drive unit; 13. Left drum; 14. Right drive unit; 15. Right drum; 16. Traction rope; 17. Brake; 18. Counterweight; 19. Counterweight steering rope wheel; 20. Counterweight guide wheel; 21. Guardrail; 22. Projection cloth; 23. Partition; 24. Multi-groove guide rope wheel;

[0031] 100. Base. Detailed Implementation

[0032] To more clearly illustrate the present invention, the invention will be further described below with reference to the accompanying drawings.

[0033] Example 1: As Figure 1-6 As shown, a lifting stage that uses guide columns to synchronously lift and achieve large-stroke lifting includes a corresponding number of steel protective barrels 1, fixed guide columns 2, and lifting columns 3. The steel protective barrels 1 are deeply embedded in the base 100. The fixed guide columns 2 are located above the steel protective barrels 1 and are fixed to the base 100 through column mounting brackets 4. The fixed guide columns 2 are hollow frame trusses and are connected to the steel protective barrels 1. A set of retaining wheel groups 5 are set above and below the fixed guide columns 2, and the retaining wheel groups 5 include a certain number of retaining wheels 5.1.

[0034] The lifting column 3 passes through the interior of the fixed guide column 2 and its outer side abuts against the retaining wheel 5.1. The top of the lifting column 3 is provided with a platform frame 6 and a stage surface 7 in sequence. The lower sides of the lifting column 3 are provided with a first lifting wheel 8 and a second lifting wheel 9 side by side. The corresponding fixed guide column 2 is provided with a first steering rope wheel 10 and a second steering rope wheel 11 on both sides.

[0035] Combination Figure 1 As shown, the base 100 has a left drive unit 12 and a left drum 13 on its left side, and a right drive unit 14 and a right drum 15 on its right side. A number of traction ropes 16 corresponding to the number of lifting columns 3 are provided. One end of each traction rope 16 is fixed to the left drum 13, passes through a first steering pulley 10, a first lifting pulley 8, a second lifting pulley 9, and a second steering pulley 11, and the other end is fixed to the right drum 15. The column mounting frame 4 has multi-groove guide pulleys 24 on both sides.

[0036] In this embodiment, brakes 17 are respectively provided between the left drive unit 12 and the left drum 13, and between the right drive unit 14 and the right drum 15.

[0037] Example 2: Figure 1-4 and Figure 7 As shown, based on Embodiment 1, the lifting column 3 is connected to at least one pair of counterweights 18, and the upper part of the fixed guide column 2 is provided with a number of counterweight turning rope pulleys 19 corresponding to the number of counterweights 18. The ropes on the counterweights 18 are connected to the lifting column 3 through the counterweight turning rope pulleys 19.

[0038] The counterweight block 18 is provided with at least two counterweight guide wheels 20 at its lower part that abut against the inner wall of the steel protective barrel 1.

[0039] Example 3: Figure 1-2 As shown, based on Embodiment 1 or Embodiment 2, at least a guardrail 21 is provided on the rear side of the stage surface 7, a foldable projection cloth 22 is suspended on the front side of the stage frame 6, and a partition 23 is provided between the projection cloth 22 and the fixed guide column 2.

[0040] Example 4: Figure 1 and Figure 3-5 As shown, based on Embodiment 1, Embodiment 2, or Embodiment 3, the lifting columns 3 are arranged in a single row or multiple rows in an array: when the stage width is less than 2.5m, the lifting columns 3 are arranged in a single row to achieve stage lifting; when the stage width is greater than 2.5m, the lifting columns 3 can be arranged in multiple rows to achieve stage lifting. For each additional row of lifting columns 3, a corresponding drive unit is set.

[0041] Example 5: Figure 3-6 As shown, based on the above embodiment, the lifting column 3 is a square truss type, and the hollow area of ​​the corresponding fixed guide column 2 is square. Each set of retaining wheel group 5 includes 8 retaining wheels 5.1, which are divided into 4 pairs and set at the four corners of the square area. The wheel axles of each pair of retaining wheels 5.1 are perpendicular to each other to form a right angle limit 5.2.

[0042] The above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. The present invention can be used in similar products. Any changes or modifications made by those skilled in the art within the scope of the present invention are covered by the patent scope of the present invention.

Claims

1. A lifting stage that utilizes guide columns for synchronous lifting to achieve a large-stroke lifting motion, characterized in that: The system includes a corresponding number of steel protective barrels (1), fixed guide columns (2), and lifting columns (3). The steel protective barrels (1) are deeply embedded in the base (100). The fixed guide columns (2) are located above the steel protective barrels (1) and are fixed to the base (100) through the column mounting bracket (4). The fixed guide columns (3) are hollow frame trusses and are connected to the steel protective barrels (1). A set of retaining wheel groups (5) are set on the upper and lower sides of the fixed guide columns (3). The retaining wheel groups (5) include a certain number of retaining wheels (5.1). The lifting column (3) passes through the interior of the fixed guide column (3) and its outer side abuts against the retaining wheel (5.1). The top of the lifting column (3) is provided with a table frame (6) and a stage surface (7) in sequence. The first lifting wheel (8) and the second lifting wheel (9) are arranged side by side on both sides below the lifting column (3). The corresponding fixed guide column (2) is provided with a first steering rope wheel (10) and a second steering rope wheel (11) on both sides. The base (100) is provided with a left drive unit (12) and a left drum (13) on the left side and a right drive unit (14) and a right drum (15) on the right side. There are traction ropes (16) in number corresponding to the lifting column (3). One end of each traction rope (16) is fixed to the left drum (13), and the other end is fixed to the right drum (15) after passing through the first steering rope wheel (10), the first lifting wheel (8), the second lifting wheel (9) and the second steering rope wheel (11). The lifting column (3) is connected to at least one pair of counterweights (18), and the upper part of the fixed guide column (3) is provided with a number of counterweight turning rope wheels (19) corresponding to the number of counterweights (18). The ropes on the counterweights (18) are connected to the lifting column (3) through the counterweight turning rope wheels (19). The lower part of the counterweight block (18) is provided with at least two counterweight guide wheels (20) that abut against the inner wall of the steel protective barrel (1). The lifting column (3) is a square truss type, and the hollow area of ​​the corresponding fixed guide column (3) is square. Each set of retaining wheel group (5) includes 8 retaining wheels (5.1), which are divided into 4 pairs and set at the four corners of the square area. The wheel axles of each pair of retaining wheels (5.1) are perpendicular to each other to form a right angle limit (5.2).

2. A lifting stage according to claim 1, characterized in that: Brakes (17) are respectively provided between the left drive unit (12) and the left drum (13), and between the right drive unit (14) and the right drum (15).

3. A lifting stage according to claim 1, characterized in that: At least a guardrail (21) is provided on the rear side of the stage surface (7).

4. A lifting stage according to claim 1, characterized in that: A projection screen (22) is suspended on the front side of the table frame (6).

5. A lifting stage according to claim 4, characterized in that: A partition (23) is provided between the projection cloth (22) and the fixed guide column (2).

6. A lifting stage according to claim 1, characterized in that: The column mounting bracket (4) is provided with multi-groove guide pulleys (24) on both sides.

7. A lifting stage according to claim 1, characterized in that: The lifting columns (3) are arranged in a single row or in multiple rows in an array.

Images