Lifting device, stage unit and underwater lifting stage

Abstract

The utility model relates to the technical field of stage machinery, in particular to a lifting device, a stage unit and an underwater lifting stage. The lifting device comprises a fixed stand column, a first-stage lifting column and a second-stage lifting column, the first-stage lifting column is embedded in the fixed stand column, the second-stage lifting column is embedded in the first-stage lifting column, and the top of the second-stage lifting column is connected with the stage unit; a first lifting mechanism is arranged between the first-stage lifting column and the fixed stand column, a second lifting mechanism is arranged among the first-stage lifting column, the second-stage lifting column and the fixed stand column, the first-stage lifting column ascends and descends relative to the fixed stand column through the first lifting mechanism, and the second-stage lifting column ascends and descends relative to the first-stage lifting column through the second lifting mechanism. According to the lifting device, the overall height of the lifting device is reduced, the occupied space in the vertical direction is reduced, and therefore the lifting device can be conveniently arranged in a limited underwater space. In addition, by means of the synchronous lifting mode, the operation stability is improved, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of stage machinery, in particular to a lifting device, a stage unit and an underwater lifting stage. Background Art

[0002] The underwater lifting stage is a mechanical device commonly used in stage performances. It presents different performance effects by rising the stage from underwater to above the water surface, giving the audience a visual shock. The lifting transmission mechanism of the existing underwater lifting stage has a complex structure, poor operating stability, and occupies a large space in the vertical direction. However, the underwater space is limited, and it is impossible to arrange the lifting transmission mechanism well. Utility Model Content

[0003] The utility model aims to provide a lifting device, a stage unit and an underwater lifting stage, so as to alleviate the problems of the existing lifting transmission mechanism of the underwater lifting stage being complex in structure and occupying a large space in the vertical direction.

[0004] In order to solve the above technical problems, the technical solution provided by the utility model is:

[0005] In a first aspect, the utility model provides a lifting device, comprising: a fixed column, a first-level lifting column and a second-level lifting column, wherein the first-level lifting column is embedded in the fixed column, the second-level lifting column is embedded in the first-level lifting column, and the top of the second-level lifting column is connected to the stage unit;

[0006] A first lifting mechanism is provided between the first-level lifting column and the fixed column, and a second lifting mechanism is provided between the first-level lifting column, the second-level lifting column and the fixed column. The first-level lifting column is lifted and lowered relative to the fixed column by the first lifting mechanism, and the second-level lifting column is lifted and lowered relative to the first-level lifting column by the second lifting mechanism.

[0007] Furthermore, the first lifting mechanism includes a first steering pulley, a fixed column steering pulley group, a lifting steering pulley group, a tightening seat and a steel wire rope, the first steering pulley is fixedly arranged at the bottom of the fixed column, the fixed column steering pulley group is fixedly arranged at the top of the fixed column, the lifting steering pulley group is installed at the bottom of the first-level lifting column, the tightening seat is fixedly arranged on the fixed column, the steel wire rope is passed through the first steering pulley, the fixed column steering pulley group and the lifting steering pulley group, and is tightened by the tightening seat.

[0008] Furthermore, the fixed column steering rope pulley group includes a first fixed column steering rope pulley and a second fixed column steering rope pulley arranged on both sides of the top of the fixed column, and the lifting steering rope pulley group includes a first lifting steering rope pulley and a second lifting steering rope pulley installed on both sides of the bottom of the first-level lifting column, and the steel wire rope is sequentially passed through the first steering rope pulley, the first fixed column steering rope pulley, the first lifting steering rope pulley, the second lifting steering rope pulley and the second fixed column steering rope pulley.

[0009] Furthermore, the fixed column is provided with a first fixed column guide wheel group and a second fixed column guide wheel group at intervals near the top, the first fixed column guide wheel group and the second fixed column guide wheel group each include a plurality of guide wheels, and the first-stage lifting column is attached to the outer periphery of the guide wheel.

[0010] Furthermore, the second lifting mechanism includes a top sprocket group, a lifting sprocket group and a chain, the top sprocket group is fixedly installed on the top of the first-level lifting column, the lifting sprocket group is installed on the bottom of the second-level lifting column, and the two ends of the chain are respectively fixed on both sides of the fixed column and pass through the top sprocket group and the lifting sprocket group.

[0011] Furthermore, the top sprocket group includes a first top sprocket and a second top sprocket fixedly installed on both sides of the top of the first-level lifting column, and the lifting sprocket group includes a first lifting sprocket and a second lifting sprocket installed on both sides of the bottom of the second-level lifting column, and the chain is sequentially passed through the first top sprocket, the first lifting sprocket, the second lifting sprocket and the second top sprocket.

[0012] Furthermore, a first lifting column guide wheel group and a second lifting column guide wheel group are arranged at intervals near the top of the first-level lifting column, the first lifting column guide wheel group and the second lifting column guide wheel group each include a plurality of guide wheels, and the second-level lifting column is attached to the outer periphery of the guide wheels.

[0013] In a second aspect, the utility model provides a stage unit, comprising the lifting device described in the first aspect, wherein the stage unit is supported by two lifting devices arranged at intervals.

[0014] Furthermore, the stage unit also includes a winch, and the winch is connected to the first lifting mechanism in the two lifting devices.

[0015] In a third aspect, the utility model provides an underwater lifting stage, comprising a plurality of the stage units described in the second aspect, wherein the plurality of the stage units are arranged in an array.

[0016] The utility model brings at least the following beneficial effects:

[0017] The utility model provides a lifting device, comprising: a fixed column, a first-level lifting column and a second-level lifting column, wherein the first-level lifting column is embedded in the fixed column, the second-level lifting column is embedded in the first-level lifting column, and the top of the second-level lifting column is connected to the stage unit; a first lifting mechanism is arranged between the first-level lifting column and the fixed column, a second lifting mechanism is arranged between the first-level lifting column, the second-level lifting column and the fixed column, the first-level lifting column is lifted relative to the fixed column by the first lifting mechanism, and the second-level lifting column is lifted relative to the first-level lifting column by the second lifting mechanism.

[0018] The first-level lifting column is embedded in the fixed column, and the second-level lifting column is embedded in the first-level lifting column. The embedded connection method reduces the overall height of the lifting device and reduces the space occupied in the vertical direction, so that it is easy to arrange in a limited underwater space. The first-level lifting column can be lifted and lowered relative to the fixed column through the first lifting mechanism, and at the same time, the second-level lifting column can be lifted and lowered relative to the first-level lifting column through the second lifting mechanism. The first lifting mechanism and the second lifting mechanism have simple structures, and such a synchronous lifting method improves the operation stability and reduces the cost.

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the related technologies, the drawings required for use in the specific implementation methods or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 A front view of the lifting device provided in the first embodiment of the utility model;

[0022] Figure 2 A side view of the lifting device provided in the first embodiment of the utility model;

[0023] Figure 3 A front view of a fixed column provided in Embodiment 1 of the present utility model;

[0024] Figure 4 A front view of a first-stage lifting column provided in Embodiment 1 of the utility model;

[0025] Figure 5A side view of the second-stage lifting column provided in the first embodiment of the utility model;

[0026] Figure 6 This is a schematic diagram of an underwater lifting stage provided in Embodiment 3 of the present utility model.

[0027] icon:

[0028] 100-fixed column; 200-first-stage lifting column; 300-second-stage lifting column; 400-stage unit; 510-first steering pulley; 520-first fixed column steering pulley; 530-second fixed column steering pulley; 540-first lifting steering pulley; 550-second lifting steering pulley; 560-tightening seat; 570-wire rope; 610-first fixed column guide wheel group; 620-second fixed column guide wheel group; 710-first top sprocket; 720-second top sprocket; 730-first lifting sprocket; 740-second lifting sprocket; 750-chain; 810-first lifting column guide wheel group; 820-second lifting column guide wheel group. DETAILED DESCRIPTION

[0029] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0031] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Physical quantities in formulas, if not separately marked, should be understood as basic quantities of the basic units of the International System of Units, or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation or integration.

[0032] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0035] Embodiment 1

[0036] The lifting transmission mechanism of the existing underwater lifting stage has a complex structure, poor operating stability, and occupies a large space in the vertical direction. However, the underwater space is limited and the lifting transmission mechanism cannot be well arranged.

[0037] In view of this, an embodiment of the utility model provides a lifting device, including: a fixed column 100, a first-level lifting column 200 and a second-level lifting column 300, the first-level lifting column 200 is embedded in the fixed column 100, the second-level lifting column 300 is embedded in the first-level lifting column 200, and the top of the second-level lifting column 300 is connected to the stage unit 400; a first lifting mechanism is provided between the first-level lifting column 200 and the fixed column 100, and a second lifting mechanism is provided between the first-level lifting column 200, the second-level lifting column 300 and the fixed column 100, the first-level lifting column 200 is lifted and lowered relative to the fixed column 100 by the first lifting mechanism, and the second-level lifting column 300 is lifted and lowered relative to the first-level lifting column 200 by the second lifting mechanism.

[0038] The first-stage lifting column 200 is embedded in the fixed column 100, and the second-stage lifting column 300 is embedded in the first-stage lifting column 200. The embedded connection method reduces the overall height of the lifting device and reduces the occupied space in the vertical direction, so that it is convenient to arrange in a limited underwater space. The first-stage lifting column 200 can be lifted and lowered relative to the fixed column 100 through the first lifting mechanism, and at the same time, the second-stage lifting column 300 can be lifted and lowered relative to the first-stage lifting column 200 through the second lifting mechanism. The first lifting mechanism and the second lifting mechanism have simple structures, and such a synchronous lifting method improves the operation stability and reduces the cost.

[0039] In an optional manner of this embodiment, the first lifting mechanism includes a first steering rope pulley 510, a fixed column steering rope pulley group, a lifting steering rope pulley group, a tightening seat 560 and a steel wire rope 570. The first steering rope pulley 510 is fixedly arranged at the bottom of the fixed column 100, the fixed column steering rope pulley group is fixedly arranged at the top of the fixed column 100, the lifting steering rope pulley group is installed at the bottom of the first-level lifting column 200, the tightening seat 560 is fixedly arranged on the fixed column 100, and the steel wire rope 570 is passed through the first steering rope pulley 510, the fixed column steering rope pulley group and the lifting steering rope pulley group, and is tightened by the tightening seat 560.

[0040] Furthermore, the fixed column steering pulley group includes a first fixed column steering pulley 520 and a second fixed column steering pulley 530 arranged on both sides of the top of the fixed column 100, and the lifting steering pulley group includes a first lifting steering pulley 540 and a second lifting steering pulley 550 installed on both sides of the bottom of the first-level lifting column 200, and the wire rope 570 is sequentially passed through the first steering pulley 510, the first fixed column steering pulley 520, the first lifting steering pulley 540, the second lifting steering pulley 550 and the second fixed column steering pulley 530.

[0041] See also Figure 2 One end of the steel wire rope 570 passes through the first steering pulley 510, the first fixed column steering pulley 520, the first lifting steering pulley 540, the second lifting steering pulley 550 and the second fixed column steering pulley 530 in sequence, and the end is tightened by the tightening seat 560. By applying power to the end of the steel wire rope 570 close to the first steering pulley 510, the first lifting steering pulley 540 and the second lifting steering pulley 550 can be lifted and lowered. Since the first lifting steering pulley 540 and the second lifting steering pulley 550 are both fixedly installed at the bottom of the first-stage lifting column 200, the synchronous lifting and lowering of the first-stage lifting column 200 is achieved.

[0042] Furthermore, a first fixed column guide wheel group 610 and a second fixed column guide wheel group 620 are spaced apart near the top of the fixed column 100. The first fixed column guide wheel group 610 and the second fixed column guide wheel group 620 both include a plurality of guide wheels, and the first-stage lifting column 200 is attached to the outer periphery of the guide wheel.

[0043] See also Figure 3 The guide wheel can guide the first-stage lifting column 200 during the lifting process of the first-stage lifting column 200, making the lifting process more stable.

[0044] In an optional manner of this embodiment, the second lifting mechanism includes a top sprocket group, a lifting sprocket group and a chain 750. The top sprocket group is fixedly installed on the top of the first-level lifting column 200, and the lifting sprocket group is installed on the bottom of the second-level lifting column 300. The two ends of the chain 750 are respectively fixed on both sides of the fixed column 100 and are passed through the top sprocket group and the lifting sprocket group.

[0045] Furthermore, the top sprocket group includes a first top sprocket 710 and a second top sprocket 720 fixedly installed on both sides of the top of the first-stage lifting column 200, and the lifting sprocket group includes a first lifting sprocket 730 and a second lifting sprocket 740 installed on both sides of the bottom of the second-stage lifting column 300, and the chain 750 is sequentially passed through the first top sprocket 710, the first lifting sprocket 730, the second lifting sprocket 740 and the second top sprocket 720.

[0046] See also Figure 1 One end of the chain 750 is fixed on the fixed column 100, and after passing through the first top sprocket 710, the first lifting sprocket 730, the second lifting sprocket 740 and the second top sprocket 720 in sequence, the other end is also fixed on the fixed column 100. During the lifting and lowering process of the first-stage lifting column 200, due to the change in height of the first top sprocket 710 and the second top sprocket 720, the first lifting sprocket 730 and the second lifting sprocket 740 will complete the synchronous follow-up lifting and lowering with the change in the length of the chain 750. Since the first lifting sprocket 730 and the second lifting sprocket 740 are fixedly installed at the bottom of the second-stage lifting column 300, the synchronous lifting and lowering of the second-stage lifting column 300 is also achieved.

[0047] Furthermore, a first lifting column guide wheel group 810 and a second lifting column guide wheel group 820 are spaced apart near the top of the first-level lifting column 200. The first lifting column guide wheel group 810 and the second lifting column guide wheel group 820 both include a plurality of guide wheels, and the second-level lifting column 300 is attached to the outer periphery of the guide wheels.

[0048] See also Figure 4 and Figure 5The guide wheel can guide the second-stage lifting column 300 during the lifting process of the second-stage lifting column 300 relative to the first-stage lifting column 200, so that the lifting process is smoother.

[0049] Embodiment 2

[0050] The embodiment of the utility model provides a stage unit 400, comprising the lifting device of the first embodiment. The stage unit 400 is supported by two lifting devices arranged at intervals.

[0051] See also Figure 1 The two lifting devices are respectively arranged on both sides of the stage unit 400, and the second-level lifting columns 300 in the two lifting devices are connected to the stage unit 400 at the top.

[0052] In an optional manner of this embodiment, the stage unit 400 further includes a winch, and the winch is connected to the first lifting mechanism of the two lifting devices.

[0053] See also Figure 1 The lifting power is provided by the winch, and the winch applies power to the end of the wire rope 570 close to the first steering sheave 510. In this embodiment, two lifting devices are lifted and lowered by one winch at the same time, that is, one stage unit 400 is driven to be lifted and lowered by one winch.

[0054] Embodiment 3

[0055] The embodiment of the utility model provides an underwater lifting stage, comprising a plurality of stage units 400 of the second embodiment, wherein the plurality of stage units 400 are arranged in an array.

[0056] See also Figure 6 In this embodiment, the plurality of stage units 400 are arranged in a rectangular array, but they may also be arranged in a circular array or other shapes, which is not limited here.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A lifting device, characterized in that: include: A fixed column, a first-level lifting column and a second-level lifting column, wherein the first-level lifting column is embedded in the fixed column, the second-level lifting column is embedded in the first-level lifting column, and the top of the second-level lifting column is connected to the stage unit; A first lifting mechanism is provided between the first-level lifting column and the fixed column, and a second lifting mechanism is provided between the first-level lifting column, the second-level lifting column and the fixed column. The first-level lifting column is lifted and lowered relative to the fixed column by the first lifting mechanism, and the second-level lifting column is lifted and lowered relative to the first-level lifting column by the second lifting mechanism.

2. The lifting device according to claim 1, characterized in that: The first lifting mechanism includes a first steering rope pulley, a fixed column steering rope pulley group, a lifting steering rope pulley group, a tightening seat and a steel wire rope. The first steering rope pulley is fixedly arranged at the bottom of the fixed column, the fixed column steering rope pulley group is fixedly arranged at the top of the fixed column, the lifting steering rope pulley group is installed at the bottom of the first-level lifting column, the tightening seat is fixedly arranged on the fixed column, the steel wire rope is passed through the first steering rope pulley, the fixed column steering rope pulley group and the lifting steering rope pulley group, and is tightened by the tightening seat.

3. The lifting device according to claim 2, characterized in that: The fixed column steering rope pulley group includes a first fixed column steering rope pulley and a second fixed column steering rope pulley arranged on both sides of the top of the fixed column, and the lifting steering rope pulley group includes a first lifting steering rope pulley and a second lifting steering rope pulley installed on both sides of the bottom of the first-level lifting column, and the steel wire rope is sequentially passed through the first steering rope pulley, the first fixed column steering rope pulley, the first lifting steering rope pulley, the second lifting steering rope pulley and the second fixed column steering rope pulley.

4. The lifting device according to claim 3, characterized in that: The fixed column is provided with a first fixed column guide wheel group and a second fixed column guide wheel group at intervals near the top. The first fixed column guide wheel group and the second fixed column guide wheel group each include a plurality of guide wheels, and the first-stage lifting column is attached to the outer periphery of the guide wheels.

5. The lifting device according to claim 1, characterized in that: The second lifting mechanism includes a top sprocket group, a lifting sprocket group and a chain. The top sprocket group is fixedly installed on the top of the first-level lifting column, and the lifting sprocket group is installed on the bottom of the second-level lifting column. The two ends of the chain are respectively fixed on both sides of the fixed column and pass through the top sprocket group and the lifting sprocket group.

6. The lifting device according to claim 5, characterized in that: The top sprocket group includes a first top sprocket and a second top sprocket fixedly installed on both sides of the top of the first-level lifting column, and the lifting sprocket group includes a first lifting sprocket and a second lifting sprocket installed on both sides of the bottom of the second-level lifting column, and the chain is sequentially passed through the first top sprocket, the first lifting sprocket, the second lifting sprocket and the second top sprocket.

7. The lifting device according to claim 6, characterized in that: A first lifting column guide wheel group and a second lifting column guide wheel group are arranged at intervals near the top of the first-level lifting column. The first lifting column guide wheel group and the second lifting column guide wheel group each include a plurality of guide wheels, and the second-level lifting column is attached to the outer periphery of the guide wheels.

8. A stage unit, characterized in that: Comprising the lifting device according to any one of claims 1 to 7, the stage unit is supported by two lifting devices arranged at intervals.

9. The stage unit according to claim 8, characterized in that: It also includes a winch, which is connected to the first lifting mechanism in the two lifting devices.

10. An underwater lifting stage, characterized in that: It comprises a plurality of stage units as described in any one of claims 8 to 9, wherein the plurality of stage units are arranged in an array.

Images