CN215291694U - Multifunctional stage - Google Patents

Abstract

The utility model relates to a multifunctional stage, which comprises a fixed table top, a movable table top and a lifting unit; the middle part of the fixed table top is hollow to form a yielding hole; the movable table top is matched with the abdicating hole and is arranged in the abdicating hole, and the side wall of the movable table top is attached to the hole wall of the abdicating hole; the two lifting units are respectively arranged on two opposite sides of the movable table board; the top of one of the movable table top is connected with one side of the movable table top, and the top of the other movable table top is connected with the other side of the movable table top. When the two lifting units drive the movable table-board to descend, the movable table-board is positioned in the abdicating hole. Therefore, the occupied space of the multifunctional stage is effectively reduced, and the damage of the multifunctional stage to the surrounding landscape environment is reduced. When the two lifting units drive the movable table top to ascend, the plane where the movable table top is located is higher than the plane where the fixed table top is located in the vertical direction, diversified performances can be met, and the forms of the performances are effectively enriched.

Description

Multifunctional stage

Technical Field

The utility model relates to a stage technical field especially relates to a multifunctional stage.

Background

To meet the needs of the audience and the market, the forms of performance are often diverse. In order to realize diversified performances, a multifunctional stage is often constructed by using more parts. The multifunctional stage is generally divided into an indoor stage and an outdoor stage. When the outdoor stage is constructed, construction needs to be performed on the site to complete the construction task of the stage.

However, the traditional multifunctional stage occupies a large space and greatly damages the surrounding landscape environment.

SUMMERY OF THE UTILITY MODEL

Great for solving the shared space of traditional multi-functional stage, destroy great problem to the surrounding landscape environment, the utility model provides a multi-functional stage.

The multifunctional stage provided for realizing the purpose of the utility model comprises a fixed table top, a movable table top and a lifting unit;

the middle part of the fixed table top is hollow to form a yielding hole;

the movable table top is matched with the abdicating hole and is arranged in the abdicating hole, and the side wall of the movable table top is attached to the hole wall of the abdicating hole;

the two lifting units are respectively arranged on two opposite sides of the movable table board; the top of one of the movable table top is connected with one side of the movable table top, and the top of the other movable table top is connected with the other side of the movable table top; the two lifting units can drive the movable table top to move up and down.

In one embodiment, the movable table is an LED display screen.

In one embodiment, each lifting unit comprises a derrick, a first-level lifting framework, a second-level lifting framework and a third-level lifting framework;

the middle part of the derrick is hollow to form a primary accommodating cavity;

the first-stage lifting framework is arranged in the first-stage accommodating cavity, and the middle part of the first-stage lifting framework is hollow to form a second-stage accommodating cavity which can move up and down;

the second-stage lifting framework is arranged in the second-stage accommodating cavity, and the middle part of the second-stage lifting framework is hollow to form a third-stage accommodating cavity which can move up and down;

the three-stage lifting framework is arranged in the three-stage accommodating cavity and can move up and down;

the tops of the three-level lifting frameworks of the two lifting units are respectively connected with the two sides of the movable table board.

In one embodiment, each lifting unit further comprises a first transmission mechanism;

the first transmission mechanism comprises a large grooved pulley, a large plate type chain, a small grooved pulley and a small plate type chain;

the large sheave is fixed on the top of the first-stage lifting framework;

one end of the large plate type chain is fixed on the derrick, and the other end of the large plate type chain is fixedly connected with the bottom of the secondary lifting framework after bypassing the large sheave;

the small grooved pulley is fixed at the top of the secondary lifting framework;

one end of the small plate type chain is fixed on the first-stage lifting framework, and the other end of the small plate type chain is fixedly connected with the bottom of the third-stage lifting framework after winding the small grooved wheel.

In one specific embodiment, the device further comprises a driving unit; the driving unit is integrally arranged below the movable table-board;

the driving unit comprises a winding driving motor, a first winch, a second winch and a second transmission mechanism;

the input shafts of the first winch and the second winch are in transmission connection with the output shaft of the winding driving motor respectively;

the two lifting units are respectively a first lifting unit and a second lifting unit;

the second transmission mechanisms comprise a first fixed pulley block, a second fixed pulley block, a first rope group and a second rope group;

the first fixed pulley block is fixed on the derrick of the first lifting unit, and the second fixed pulley block is fixed on the derrick of the second lifting unit;

one end of the first rope group is wound on the first winch, and the other end of the first rope group is fixedly connected with the bottom of the first-level lifting framework of the first lifting unit after passing through the fixed pulley group; one end of the second rope group is wound on the second winch, and the other end of the second rope group is fixedly connected with the bottom of the first-level lifting framework of the second lifting unit after bypassing the second fixed pulley group.

In one embodiment, the driving unit further comprises a primary speed reducer, a primary brake, a secondary speed reducer and a secondary brake;

an input shaft of the first-stage speed reducer is fixedly connected with an output shaft of the winding driving motor through a first-stage brake;

the two-stage speed reducer and the two-stage brake are arranged, an input shaft of one of the two-stage speed reducer is fixedly connected with one of output shafts of the one-stage speed reducer through one of the two-stage brake, and the output shaft is fixedly connected with an input shaft of the first winch; and the input shaft of the other second-stage speed reducer is fixedly connected with the other output shaft of the first-stage speed reducer through the other second-stage brake, and the output shaft is fixedly connected with the input shaft of the second winch.

In one specific embodiment, the device further comprises an angle adjusting unit;

the two angle adjusting units are respectively arranged on two opposite sides of the movable table board;

each angle adjusting unit comprises a turnover driving motor and a third transmission mechanism;

the overturning driving motor of one of the angle adjusting units is fixed at the top of one of the lifting units, and the output shaft is in transmission connection with one side of the movable table top through a third transmission mechanism; the turnover driving motor of the other angle adjusting unit is fixed at the top of the other lifting unit, and the output shaft is in transmission connection with the other side of the movable table top through a third transmission mechanism.

In one specific embodiment, each third transmission mechanism comprises a turnover brake, a turnover reducer and a turnover clamping plate;

an input shaft of the turnover speed reducer is fixedly connected with an output shaft of the turnover driving motor through a turnover brake, and the output shaft is fixedly connected with the turnover clamping plate;

one side of the turnover clamping plate of one of the third transmission mechanisms, which is away from the turnover driving motor, is fixedly connected with one side of the movable table top, and one side of the turnover clamping plate of the other third transmission mechanism, which is away from the turnover driving motor, is fixedly connected with the other side of the movable table top.

In one embodiment, the overturning clamping plate is provided with a mounting hole, and the wall of the mounting hole is provided with meshing teeth;

each third transmission mechanism also comprises a gear;

one end face of the gear is fixedly connected with the output end of the overturning speed reducer, and the outer wall of the gear is meshed and connected with the hole wall of the mounting hole through meshing teeth.

In one specific embodiment, the device further comprises a base;

the base is hollow, the top is fixed with a fixed table-board, and the inside is fixed with a lifting unit.

The utility model has the advantages that: the utility model discloses a multi-functional stage is through setting up fixed table face and movable table face, and fixed table face and movable table face homoenergetic can regard as the performance platform to use. The two lifting units can drive the movable table top to move up and down. The middle part of the fixed table surface is provided with a yielding hole. When the two lifting units drive the movable table top to descend so that the movable table top and the fixed table top are located on the same plane, the movable table top is located in the abdicating hole, and the side wall of the movable table top is attached to the hole wall of the abdicating hole. Therefore, the occupied space of the multifunctional stage is effectively reduced, and the damage of the multifunctional stage to the surrounding landscape environment is reduced. When the two lifting units drive the movable table top to ascend, the plane where the movable table top is located is higher than the plane where the fixed table top is located in the vertical direction, diversified performances can be met, and the forms of the performances are effectively enriched.

Drawings

Fig. 1 is a schematic view of an internal structure of an embodiment of the multifunctional stage of the present invention;

fig. 2 is a top view of the multi-function stage shown in fig. 1;

fig. 3 is a schematic structural view of the multifunctional stage shown in fig. 1 in a use state;

fig. 4 is a schematic view of a combined structure of the base, the lifting unit and the driving unit in the multifunctional stage shown in fig. 2;

fig. 5 is a schematic structural diagram of an embodiment of the driving unit in the multifunctional stage shown in fig. 2;

fig. 6 is a schematic structural view of an embodiment of the lifting unit in the multifunctional stage shown in fig. 2;

fig. 7 is a schematic structural diagram of an embodiment of the angle adjustment unit in the multifunctional stage shown in fig. 3.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "top", "bottom", "inner", "outer", "axis", "circumferential" and the like refer to the orientation or positional relationship shown in the drawings, which are only for convenience of description of the present invention or simplification of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," "engaged," "hinged," and the like are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1, 2, 3, 4, 5, 6 and 7, a multifunctional stage includes a fixed stage 110, a movable stage 120 and a lifting unit 130. Wherein, the middle part of the fixed table-board 110 is hollow to form a yielding hole. The movable table top 120 is matched with the abdicating hole and arranged in the abdicating hole, and the side wall of the movable table top 120 is attached to the hole wall of the abdicating hole. Two of the lifting units 130 are respectively disposed on two opposite sides of the movable table 120. The top of one of the lifting units 130 is connected to one side of the movable table 120, and the top of the other lifting unit 130 is connected to the other side of the movable table 120. The two lifting units 130 can drive the movable table 120 to move up and down.

In this embodiment, both the stationary table 110 and the movable table 120 are capable of being used for performing. The two lifting units 130 can drive the movable table 120 to move up and down. The middle part of the fixed table-board 110 is provided with a yielding hole. When the two lifting units 130 drive the movable table 120 to descend so that the movable table 120 and the fixed table 110 are located on the same plane, the movable table 120 is located in the abdicating hole, and the side wall of the movable table is attached to the hole wall of the abdicating hole. Therefore, the occupied space of the multifunctional stage is effectively reduced, and the damage of the multifunctional stage to the surrounding landscape environment is reduced. When the two lifting units 130 drive the movable table top 120 to ascend, the plane of the movable table top 120 is higher than the plane of the fixed table top 110 in the vertical direction, so that diversified performances can be met, and the forms of the performances are effectively enriched. The movable table 120 is an LED display screen, and can be used as a platform for performance and also used for playing video content, thereby effectively enriching the content and the form of performance. The LED screen is arranged outside the stage, so that the overall structure of the stage is compact, the stage does not interfere with each other, the space is greatly saved, the damage to the surrounding landscape environment is small, and the stage is more convenient to use. The stage can be used as a show stage and can also be matched with a water curtain.

Referring to fig. 3 and 6, in an embodiment of the present invention, each lifting unit 130 includes a derrick 131, a first-stage lifting frame 132, a second-stage lifting frame 133, and a third-stage lifting frame 134. Wherein, the middle part of the derrick 131 is hollow to form a primary accommodating cavity. The first-stage lifting framework 132 is arranged in the first-stage accommodating cavity, and the first-stage lifting framework 132 can move up and down along the axial direction of the derrick 131. The middle part of the first-level lifting framework 132 is hollow to form a second-level accommodating cavity. The second-stage lifting framework 133 is arranged in the second-stage accommodating cavity, and the second-stage lifting framework 133 can move up and down along the axial direction of the first-stage lifting framework 132. The middle part cavity of second grade lift skeleton 133 forms tertiary holding chamber, and tertiary lift skeleton 134 locates tertiary holding intracavity, and tertiary lift skeleton 134 can reciprocate along the axial of second grade lift skeleton 133. The tops of the three-level lifting frameworks 134 of the two lifting units 130 are respectively connected with the two sides of the movable table-board 120. Here, it should be noted that when the three-stage lifting frame 134 is located in the three-stage accommodating cavity, the two-stage lifting frame 133 is located in the two-stage accommodating cavity, and the one-stage lifting frame 132 is located in the one-stage accommodating cavity, the whole lifting unit 130 is located in the foundation pit. The lifting unit 130 is formed by matching the derrick 131, the first-stage lifting framework 132, the second-stage lifting framework 133 and the third-stage lifting framework 134, so that the occupied space of the multifunctional stage can be further reduced, the depth of a foundation pit is greatly reduced, and the damage of the multifunctional stage to the surrounding environment is reduced.

In an embodiment of the present invention, the orthogonal projections of the derrick 131, the first-stage lifting frame 132, the second-stage lifting frame 133 and the third-stage lifting frame 134 are all square structures. Each lifting unit 130 further includes a first transmission mechanism including eight large sheaves, eight large plate-type chains, eight small sheaves, and eight plate-type chains.

Wherein, eight big sheaves all are fixed in the top of one-level lift skeleton 132, and two liang locate one side of one-level lift skeleton 132. Each large plate chain corresponds to each large sheave. One end of each large plate type chain is fixed on the derrick 131, and the other end of each large plate type chain is fixedly connected with the bottom of the secondary lifting framework 133 after bypassing the large sheave. When the driving unit 140 drives the first-stage lifting frame 132 to move upward, the first-stage lifting frame 132 drives the large sheave to move upward. Since one end of the large plate chain is fixed on the derrick 131, the position of which is always kept unchanged, the other end of the large plate chain pulls the secondary lifting frame 133 to move upwards. At this time, the large sheave is equivalent to the movable sheave, so that the rising rate of the secondary lift frame 133 is 2 times as high as that of the primary lift frame 132.

Wherein, eight small sheave are all fixed in the top of second grade lift skeleton 133, and two liang locate one side of second grade lift skeleton 133. Each small slat chain corresponds to each small sheave. One end of each small plate type chain is fixed on the first-stage lifting framework 132, and the other end of each small plate type chain winds around the small grooved wheel and is fixedly connected with the bottom of the third-stage lifting framework 134. When the second-stage lifting framework 133 is pulled by the large plate-type chain to move upwards, the second-stage lifting framework 133 drives the small grooved wheels to move upwards. Because one end of the small plate chain is fixed to the first stage lifting frame 132, the other end of the small plate chain pulls the third stage lifting frame 134 to move upward. At this time, the small sheave is also equivalent to the movable sheave, so that the rising rate of the three-stage lifting frame 134 is 2 times the rising rate of the two-stage lifting frame 133 and 4 times the rising rate of the one-stage lifting frame 132. On the whole, realized the purpose that tertiary linkage differential goes up and down, greatly reduced the foundation ditch degree of depth.

Referring to fig. 4, 5 and 6, in an embodiment of the present invention, the multifunctional stage further includes a driving unit 140, and the driving unit 140 is integrally disposed below the movable stage 120. The driving unit 140 includes a winding driving motor 141, a first winding machine 142, a second winding machine 143, and a second transmission mechanism 144.

Wherein, the input shafts of the first winding machine 142 and the second winding machine 143 are respectively connected with the output shaft of the winding driving motor 141 in a transmission way. The two elevating units 130 are a first elevating unit 130 and a second elevating unit 130, respectively. The second transmission mechanisms 144 each include a first set of fixed pulleys, a second set of fixed pulleys, a first set of ropes, and a second set of ropes. The first fixed pulley groups are four and are respectively fixed at four corners of the derrick 131 of the first lifting unit 130, and the second fixed pulley groups are four and are respectively fixed at four corners of the derrick 131 of the second lifting unit 130. The first rope group comprises four first ropes, one ends of the four first ropes are wound on the first winch 142, and the other ends of the four first ropes are fixedly connected with the four corners of the bottom of the one-level lifting framework 132 of the first lifting unit 130 respectively after bypassing the fixed pulley block. The second rope group comprises four second ropes, one ends of the four second ropes are wound on the second winch 143, and the other ends of the four second ropes wind around the second fixed pulley block and are fixedly connected with four corners of the bottom of the first-stage lifting framework 132 of the second lifting unit 130. The first winch 142 and the second winch 143 are driven by the winding driving motor 141 to perform a winding operation, and the first rope set is wound on the first winch 142 and pulls the first-stage lifting frame 132 of the first lifting unit 130 to move upward. The second rope set is wound on the second winding machine 143 and pulls the first-stage lifting frame 132 of the second lifting unit 130 upward. On the whole, the two lifting units 130 can be driven to perform lifting tasks by adopting one power source, so that the driving equipment is effectively reduced, the cost is saved, and the structure is simplified. Also, the two elevating units 130 can be elevated synchronously.

In an embodiment of the present invention, the first rollers are fixed on the inner walls of the four sides of the derrick 131, and the side walls of the first rollers disposed on the four sides are respectively abutted against the outer walls of the four sides of the first-level lifting frame 132. The inner walls of the four sides of the first-stage lifting framework 132 are all fixed with second rollers, and the side walls of the second rollers arranged on the four sides are respectively abutted against the outer walls of the four sides of the second-stage lifting framework 133. The inner walls of the four sides of the second-stage lifting framework 133 are all fixed with third rollers, and the side walls of the third rollers arranged on the four sides are respectively abutted against the outer walls of the four sides of the third-stage lifting framework 134. So, when one-level lift skeleton 132, second grade lift skeleton 133 and tertiary lift skeleton 134 upwards or when moving down, first gyro wheel, second gyro wheel and third gyro wheel have improved the smoothness nature that one-level lift skeleton 132, second grade lift skeleton 133 and tertiary lift skeleton 134 removed respectively, have reduced the degree of difficulty of going up and down effectively.

In an embodiment of the present invention, the driving unit 140 further includes a first speed reducer 145, a first brake 146, a second speed reducer 147 and a second brake 148. Here, the primary speed reducer 145 has one input shaft and two output shafts. An input shaft of the first-stage speed reducer 145 is fixedly connected with an output shaft of the winding driving motor 141 through a first-stage brake 146. The two-stage speed reducer 147 and the two-stage brake 148 are provided, wherein an input shaft of one of the two-stage speed reducer 147 is fixedly connected with one of output shafts of the first-stage speed reducer 145 through one of the two-stage brake 148, and the output shaft is fixedly connected with an input shaft of the first winch 142. The input shaft of the other secondary speed reducer 147 is fixedly connected to the other output shaft of the primary speed reducer 145 through the other secondary brake 148, and the output shaft is fixedly connected to the input shaft of the second winch 143. The first-stage speed reducer 145 can preliminarily amplify the torque generated by the winding driving motor 141, and the second-stage speed reducer 147 can amplify the torque generated by the winding driving motor 141 again, so that the winding and releasing efficiency of the rope is effectively improved on the whole.

Referring to fig. 3 and 7, in an embodiment of the present invention, the multifunctional stage further includes an angle adjusting unit 150. Specifically, two angle adjusting units 150 are respectively disposed on two opposite sides of the movable table 120. Each angle adjusting unit 150 includes a tumble drive motor 151 and a third transmission mechanism. The turning driving motor 151 of one of the angle adjusting units 150 is fixed to the top of one of the lifting units 130 through a support 153, and the output shaft is in transmission connection with one side of the movable table 120 through a third transmission mechanism. The turning driving motor 151 of the other angle adjusting unit 150 is fixed to the top of the other lifting unit 130 through a support 153, and the output shaft is in transmission connection with the other side of the movable table 120 through a third transmission mechanism. The two angle adjusting units 150 cooperate to drive the movable table 120 to rotate. Here, it should be noted that the movable table 120 is an LED display screen, and can be used for playing video. The movable table 120 can be lifted and turned over, so that the performance forms are effectively enriched, and the functions of the stage are increased. On the whole, the multifunctional stage can realize performances in various forms in a narrow space.

In a specific embodiment of the present invention, each third transmission mechanism includes a turning brake 1521, a turning speed reducer 1522 and a turning holding plate 1523. An input shaft of the turning speed reducer 1522 is fixedly connected with an output shaft of the turning driving motor 151 through a turning brake 1521, and the output shaft is fixedly connected with the turning clamping plate 1523. The turning speed reducer 1522 can amplify the torque generated by the turning driving motor 151, and can provide more abundant power for the rotation of the movable table 120. One side face of the turning clamping plate 1523 of one of the third transmission mechanisms, which faces away from the turning driving motor 151, is fixedly connected with one side of the movable table top 120, and one side face of the turning clamping plate 1523 of the other third transmission mechanism, which faces away from the turning driving motor 151, is fixedly connected with the other side of the movable table top 120. The turning clamping plates 1523 of the two third transmission mechanisms effectively increase the contact area between the movable table 120 and the two angle adjusting units 150, effectively improve the stability of the connection position, and simultaneously enable the torque to be transmitted more stably. The overturning clamping plate 1523 is provided with a mounting hole, and the hole wall of the mounting hole is provided with meshing teeth. Each third transmission mechanism further comprises a gear, one end face of the gear is fixedly connected with the output end of the overturning speed reducer, and the outer wall of the gear is meshed and connected with the hole wall of the mounting hole through meshing teeth. The turnover clamping plate is driven to rotate in a gear mode, so that the torque can be transmitted more stably, and the transmission precision is higher.

In an embodiment of the present invention, the multifunctional stage further comprises a base 160. The base 160 has a hollow structure, a fixed table 110 is fixed on the top, and the lifting unit 130, the driving unit 140 and the angle adjusting unit 150 are fixed inside. The base 160 effectively isolates the interior of the stage from the exterior, increasing safety, and improving the overall aesthetic appeal of the stage. Here, the winding drive motor 141 and the reversing drive motor 151 are both electrically connected to an external power source, and are supplied with electric power from the external power source. In addition, the base 160 is a cylinder structure, and correspondingly, the fixed table 110 is a circular ring structure, and the movable table 120 is a circular structure. The whole relatively good ornamental effect, square structure relatively can reduce area effectively. The base 160 is made of concrete, and has strong anti-pulling capability and strong structural stability. The movable table-board 120 is a truss structure with steel structure, and the main structure of the movable table-board 120 is made of steel, so that the structure stability is strong, the supporting effect is good, and the movable table-board is not easy to deform. The secondary structure of the movable table-board 120 is made of aluminum alloy, so that the weight of the movable table-board 120 is effectively reduced, and the lightweight design is realized. The derrick 131, the first-level lifting framework 132, the second-level lifting framework 133 and the third-level lifting framework 134 are made of steel, so that the structural stability is high, the supporting effect is good, and the deformation is not easy. The first rope and the second rope are steel wire ropes, are not easy to break and have long service life.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," "one specific embodiment," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, a schematic representation of the term does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can equally replace or change the technical solution and the inventive concept of the present invention within the scope of the present invention.

Claims (10)

1. A multifunctional stage, comprising:

the lifting device comprises a fixed table top, a movable table top and a lifting unit;

the middle part of the fixed table top is hollow to form a yielding hole;

the movable table top is matched with the abdicating hole and is arranged in the abdicating hole, and the side wall of the movable table top is attached to the hole wall of the abdicating hole;

the two lifting units are respectively arranged on two opposite sides of the movable table board; the top of one of the movable table top is connected with one side of the movable table top, and the top of the other movable table top is connected with the other side of the movable table top; the two lifting units can drive the movable table top to move up and down.

2. The multi-function stage of claim 1, wherein the movable stage is an LED display screen.

3. The multi-functional stage according to claim 1, wherein each of the lifting units includes a derrick, a primary lifting frame, a secondary lifting frame, and a tertiary lifting frame;

the middle part of the derrick is hollow to form a primary accommodating cavity;

the primary lifting framework is arranged in the primary accommodating cavity, and the middle part of the primary lifting framework is hollow to form a secondary accommodating cavity which can move up and down;

the second-stage lifting framework is arranged in the second-stage accommodating cavity, and the middle part of the second-stage lifting framework is hollow to form a third-stage accommodating cavity which can move up and down;

the three-stage lifting framework is arranged in the three-stage accommodating cavity and can move up and down;

the tops of the three-level lifting frameworks of the two lifting units are respectively connected with two sides of the movable table board.

4. The multi-function stage of claim 3, wherein each of the lifting units further comprises a first transmission;

the first transmission mechanism comprises a large grooved pulley, a large plate type chain, a small grooved pulley and a small plate type chain;

the large grooved pulley is fixed at the top of the primary lifting framework;

one end of the large plate type chain is fixed on the derrick, and the other end of the large plate type chain bypasses the large sheave and is fixedly connected with the bottom of the secondary lifting framework;

the small grooved pulley is fixed at the top of the secondary lifting framework;

one end of the small plate type chain is fixed on the first-stage lifting framework, and the other end of the small plate type chain bypasses the small grooved wheel and is fixedly connected with the bottom of the third-stage lifting framework.

5. The multi-function stage of claim 3, further comprising a drive unit; the driving unit is integrally arranged below the movable table board;

the driving unit comprises a winding driving motor, a first winch, a second winch and a second transmission mechanism;

the input shafts of the first winch and the second winch are in transmission connection with the output shaft of the winding driving motor respectively;

the two lifting units are respectively a first lifting unit and a second lifting unit;

the second transmission mechanisms comprise a first fixed pulley block, a second fixed pulley block, a first rope group and a second rope group;

the first fixed pulley block is fixed on the derrick of the first lifting unit, and the second fixed pulley block is fixed on the derrick of the second lifting unit;

one end of the first rope group is wound on the first winch, and the other end of the first rope group is fixedly connected with the bottom of the first-stage lifting framework of the first lifting unit after bypassing the first fixed pulley group; one end of the second rope group is wound on the second winch, and the other end of the second rope group is fixedly connected with the bottom of the first-level lifting framework of the second lifting unit after bypassing the second fixed pulley group.

6. The multi-functional stage according to claim 5, wherein the drive unit further includes a primary reducer, a primary brake, a secondary reducer, and a secondary brake;

an input shaft of the primary speed reducer is fixedly connected with an output shaft of the winding driving motor through the primary brake;

the two secondary speed reducers and the two secondary brakes are arranged, an input shaft of one of the secondary speed reducers is fixedly connected with one output shaft of the primary speed reducer through one of the two secondary brakes, and the output shaft is fixedly connected with an input shaft of the first winch; and the input shaft of the other secondary speed reducer is fixedly connected with the other output shaft of the primary speed reducer through the other secondary brake, and the output shaft of the secondary speed reducer is fixedly connected with the input shaft of the second winch.

7. The multifunctional stage according to any one of claims 1 to 6, further comprising an angle adjustment unit;

the two angle adjusting units are respectively arranged on two opposite sides of the movable table board;

each angle adjusting unit comprises a turnover driving motor and a third transmission mechanism;

the overturning driving motor of one of the angle adjusting units is fixed at the top of one of the lifting units, and an output shaft is in transmission connection with one side of the movable table top through the third transmission mechanism; the turnover driving motor of the other angle adjusting unit is fixed at the top of the other lifting unit, and an output shaft is in transmission connection with the other side of the movable table top through the third transmission mechanism.

8. The multi-function stage of claim 7, wherein each of the third transmissions includes a roll-over brake, a roll-over reducer, and a roll-over clamp plate;

an input shaft of the overturning speed reducer is fixedly connected with an output shaft of the overturning driving motor through the overturning brake, and the output shaft is fixedly connected with the overturning clamping plate;

one of the third transmission mechanism is characterized in that the turnover clamping plate deviates from one side surface of the turnover driving motor and is fixedly connected with one side of the movable table board, and the other of the third transmission mechanism is characterized in that the turnover clamping plate deviates from one side surface of the turnover driving motor and is fixedly connected with the other side of the movable table board.

9. The multifunctional stage according to claim 8, wherein the turnover clamping plate is provided with mounting holes, and the wall of each mounting hole is provided with engaging teeth;

each third transmission mechanism further comprises a gear;

one end face of the gear is fixedly connected with the output end of the turnover speed reducer, and the outer wall of the gear is meshed and connected with the hole wall of the mounting hole through the meshing teeth.

10. The multifunctional stage according to any one of claims 1 to 6, further comprising a base;

the base is hollow, the top of the base is fixed with the fixed table top, and the lifting unit is fixed inside the base.

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