CN107620497A - A kind of spiral stage jacking system - Google Patents

Abstract

The invention relates to a spiral stage lifting system, which includes several spiral lifts arranged side by side along the ground, a stage table mounted on the top of the spiral lifts, and a device for driving any one or multiple spiral lifts among the several spiral lifts to rotate. The drive motor, several auxiliary support frames installed between the ground and the stage table for auxiliary support, also include a controller for controlling the drive motor. The invention has a reasonable structural design, realizes the lifting movement of the stage table by adopting the spiral lifting method, has a compact space structure, and solves the technical problem that the traditional lifting mechanism occupies a large space size, and the lifting force will not be affected by the lifting height. Increase and suddenly become smaller, with high stability and high safety performance.

Description

A spiral stage lifting system

technical field

The invention relates to the technical field of lifting stages, in particular to a spiral stage lifting system.

Background technique

As we all know, in large-scale amusement places, parties, etc., often due to the needs of the performance plot, it is necessary to perform various effects by means of stage lifting. Most of the existing stage lifting methods are traditional hydraulic cylinders, pneumatic cylinders, or screw methods, etc. During the lifting process, the traditional lifting methods will gradually reduce the lifting weight according to the increase in height, and the height of the body will increase with the lifting height. Ascent and higher, more limited. It is impossible to find a lift that can meet such requirements in an environment where it is installed in a specific narrow space and the height of the body cannot be too high. Usually, the height can be raised, so the body of the lift must be correspondingly higher to realize its function, and it must drive the load. type objects, the lift body must be quite large and the lifting frame must be reinforced to meet the requirements. Some lifting systems have to dig deeper pits to put in large-volume lifts, which increases construction difficulty and prolongs construction delivery. The method is that oil leakage from the sealing part will start after a long time, which will bring more maintenance times and maintenance troubles; the current situation of lack of precision in the automatic control of lifting, the lifting weight and lifting speed of the screw lift are obviously reduced , and the same disadvantage that the height of the body should rise and be fixed as high as it rises. Therefore there is an urgent need for a new lifting stage system.

Contents of the invention

The technical problem to be solved by the present invention is to provide a spiral stage lifting system.

The technical problem to be solved by the present invention adopts the following technical solutions to realize:

A spiral stage lifting system, including several spiral lifts arranged side by side along the ground, a stage table mounted on the top of the spiral lifts, a drive motor for driving any one or multiple spiral lifts among the several spiral lifts, Several auxiliary support frames installed between the ground and the stage table for auxiliary support also include a controller for controlling the driving motor.

The top of the screw jack is provided with a connection fixing plate, and a position sensor and a gravity sensor connected to the controller are installed on the connection fixing plate, and an anti-lower device for lower limit of the connection fixing plate is installed on the ground;

The anti-lower device is a column;

The screw jack includes a fixed base, a platform that rotates around the fixed base, a storage box installed on the platform, a spring flat belt stored in the storage box, which is installed in the fixed base and cooperates with the spring flat belt to form a spiral The toothed spring bar of the column, the belt track lifting mechanism installed on the platform for restraining the lifting or shrinking movement of the toothed spring bar, and the track guide frame used to make the spring flat belt engage with the toothed spring bar.

Further, the auxiliary support frame is a V-shaped support bracket, and the V-shaped support bracket includes a first plate hinged to the ground, a second plate with one end hinged to the end of the first plate away from the ground and the other end hinged to the stage table. second board;

As another improvement of the present invention, the auxiliary support frame is a bamboo-type lifting support bracket, and the bamboo-type lifting support bracket includes a bottom frame fixed on the ground, a Several lifting frames, the lifting frame at the bottom of the several lifting frames is axially slidably matched with the bottom frame, the topmost lifting frame among the several lifting frames is connected with the stage table, and the adjacent two of the several lifting frames Axial sliding fit between lifting frames;

As another improvement of the present invention, the auxiliary support frame is a scissor-type telescopic support, the bottom of the scissor-type telescopic support is fixed on the ground, and the top of the scissor-type telescopic support is connected to the stage table;

The number of said stage tops is N, and said N is less than or equal to the number of screw jacks;

A worm is installed on the drive motor, and the worm cooperates with the screw jack to realize power transmission;

A bevel gear direction-changing mechanism is installed on the drive motor, and the output end of the bevel gear direction-changing mechanism is connected with a drive coupling, and the end of the drive coupling close to the screw lifter is equipped with a gear that cooperates with the screw lifter to realize power. transfer worm;

Further, the bevel gear changing mechanism includes a No. 1 driving bevel gear installed on the shaft of the driving motor, and a No. 1 driven bevel gear installed on the drive coupling and meshing with the No. 1 driving bevel gear;

Further, the bevel gear change mechanism includes the No. 2 driving bevel gear installed on the shaft of the drive motor, the transmission shaft installed horizontally on the ground, and the No. 2 driving bevel gear installed on the transmission shaft and meshing with the No. 2 driving bevel gear. The driven bevel gear, the No. 3 driving bevel gear installed on the transmission shaft, the No. 3 driven bevel gear meshing with the No. 3 driving bevel gear and installed on the driving coupling;

The drive couplings are all connected with a coupling bracket fixed on the ground.

A screw jack consisting of a fixed base, a platform that rotates around the fixed base, a storage box mounted on the platform, a spring flat belt stored in the storage box, a screw column mounted in the fixed base and cooperating with the spring flat belt The toothed spring bar of the body, the belt track lifting mechanism installed on the platform for restraining the lifting or shrinking movement of the toothed spring bar, and the track guide frame used to make the spring flat belt engage with the toothed spring bar.

The fixed base includes a lifting mechanism base, a force-supporting barrel vertically installed on the upper end of the lifting mechanism base through a rotating pair, and several fixed brackets for limiting the degree of freedom of rotation of the toothed spring bars.

The platform includes a storage box bracket installed on the upper end of the fixed base, and a driving force input mechanism installed on the lower end surface of the storage box bracket.

The driving force input mechanism is any one of a chain wheel and a worm wheel.

The flat spring belt is provided with several rows of uniformly distributed belt holes along the length direction of the spring flat belt; the toothed spring bar is evenly provided with teeth that can engage with the belt holes.

The lifting mechanism with track includes a lifting cylinder, on which there are two helically arranged limit rollers for guiding the lifting of the toothed spring bars along the axis of the lifting cylinder.

The storage box bracket is provided with a relief slot for the tooth-shaped spring bar to pass through when it is raised and lowered.

The upper end of the storage box bracket is uniformly provided with several storage box bottom bearing seats for matching with the bottom of the storage box along the circumferential direction.

Several storage box external bearing frames installed on the upper end of the storage box bracket are evenly arranged in the circumferential direction of the storage box.

The track guide frame includes four guide brackets, and the first guide bracket is provided with three blocks for squeezing the spring flat belt to make the spring flat belt engage with the toothed spring bar, and the remaining three guide brackets are arranged in a clockwise direction. Two blocks, two blocks, and one block are respectively arranged in sequence in each direction, and the blocks are staggered from the occlusal part of the spring flat belt and the toothed spring bar and abut against the outer surface of the spring flat belt 1 .

The beneficial effects of the present invention are: the structural design of the present invention is reasonable, and the lifting motion of the stage table is realized by adopting the spiral lifting method, the space structure is compact, and the technical problem that the traditional lifting mechanism occupies a relatively large space size is solved, and the lifting force is low. It will suddenly become smaller due to the increase of the lifting height, with high stability and high safety performance.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a kind of three-dimensional structure schematic diagram of the present invention;

Fig. 2 is the screw jack of the present invention, fixed plate, the structural representation of described connecting fixed plate, position sensor, gravity sensor, anti-lower device distribution;

Fig. 3 is a three-dimensional schematic diagram of an embodiment of the screw jack of the present invention;

Fig. 4 is a schematic diagram of the internal structure of an embodiment of the screw jack of the present invention;

Fig. 5 is a top view of an embodiment of the screw jack of the present invention;

Figure 6 is a top perspective view of an embodiment of the screw jack of the present invention;

Fig. 7 is a front perspective view after removing the fixed base of an embodiment of the screw jack of the present invention;

Fig. 8 is a schematic structural view of a storage box bracket of an embodiment of the screw jack of the present invention;

Fig. 9 is a three-dimensional structural schematic diagram of another embodiment of the screw jack of the present invention;

Fig. 10 is the front view of another embodiment of the screw jack of the present invention;

Fig. 11 is a half-sectional view of another embodiment of the screw jack of the present invention;

Fig. 12 is a full sectional view of another embodiment of the screw jack of the present invention.

Figure 13 is a schematic diagram of the first structure of the auxiliary support frame;

Fig. 14 is a second structural schematic diagram of the auxiliary support frame;

Fig. 15 is a third structural schematic diagram of the auxiliary support frame;

Fig. 16 is a state diagram when the bamboo-type elevating support bracket is used in conjunction with the screw elevator;

Figure 17 is a schematic diagram of the first driving mode;

Fig. 18 is a structural schematic diagram 1 of the second driving mode;

Fig. 19 is a structural schematic diagram II of the second driving mode;

Fig. 20 is a schematic diagram of the third driving mode;

Fig. 21 is a schematic diagram of an implementation state of the present invention after removing the auxiliary support frame and the driving motor;

Fig. 22 is a schematic diagram of another implementation state of the present invention after removing the auxiliary support frame and the driving motor.

detailed description

In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further elaborated below.

As shown in Figures 1 to 22, a spiral stage lifting system includes several spiral elevators 19 arranged side by side along the ground 17, a stage table 23 installed on the top of the spiral elevator 19, used to drive several spiral elevators 19 Any one screw jack 19 or a plurality of screw jacks 19 rotating drive motor 18, several auxiliary support frames 20 installed between the ground 17 and the stage table 23 for auxiliary support, also includes a controller for controlling the drive motor 18 . The driving motor 18 drives the corresponding screw elevator 19 to rotate, and then drives the stage table 23 up and down to meet the use requirements of the stage; the auxiliary support frame 20 can play the role of auxiliary support during the lifting process, which greatly improves the safety. . In the present invention, after the screw elevator 19 is fully retracted, the height of the space can be reduced to a very low level, which greatly saves space, and there is no need to dig a pit under the stage that is suitable for the length of the hydraulic cylinder body like the traditional hydraulic cylinder lifting stage. , reducing the construction cost.

The top of the screw jack 19 is provided with a connecting fixed plate 25 on which a position sensor 26 and a gravity sensor 27 connected to the controller are installed. Anti-lower device 28. The present invention adopts gravity sensor 27 to detect the weight of carrying, to prevent overweight; Adopt position sensor 26 in order to measure the height when lifting; Adopt anti-lower device 28 to prevent connecting fixed plate 25 from crossing the lower limit position downwards to screw elevator 19 It causes damage by itself and plays the role of safety protection. The upper end of the connection fixing plate 25 is connected with the stage table top 23 .

The controller is PLC.

The anti-lower device 28 is a column.

Furthermore, the number of stage surfaces 23 in the present invention is N, and said N is less than or equal to the number of screw lifters 19, so that multiple stage planes can be lifted up and down to meet different performance requirements.

The auxiliary support frame 20 of the present invention has three kinds of implementation modes, respectively as follows:

Embodiment one:

As shown in FIG. 13 , the auxiliary support frame 20 is a V-type support bracket, and the V-type support bracket includes a first plate 37 hinged to the ground 17, one end of which is hinged to an end of the first plate 37 away from the ground 17 and The second plate 38 whose other end is hinged with the stage table top 23.

Embodiment two:

As shown in Figures 15 and 16, the auxiliary support frame 20 is a bamboo-type lifting support bracket, and the bamboo-type lifting support bracket includes a chassis 39 fixed on the ground 17, which can be moved along the chassis 39. A plurality of lifting frames 40 that slide axially, the bottommost lifting frame 40 among the several lifting frames 40 is axially slidably matched with the bottom frame 39, and the topmost lifting frame 40 among the several lifting frames 40 is connected with the stage table 23 , Axial sliding fit between two adjacent lifting frames 40 among the several lifting frames 40 .

Embodiment three:

As shown in Figure 14, the auxiliary support frame 20 is a scissor-type telescopic support, the bottom of the scissor-type telescopic support is fixed on the ground 17, and the top of the scissor-type telescopic support is connected to the stage table top 23;

In addition, there are two driving modes of the present invention, which are respectively as follows:

Embodiment four:

As shown in FIG. 17 , a worm 41 is installed on the drive motor 18 , and the worm 41 cooperates with the screw jack 19 to realize power transmission.

Embodiment five:

As shown in Figures 18 and 19, a bevel gear reversing mechanism is installed on the drive motor 18, and the output end of the bevel gear reversing mechanism is connected with a drive coupling 24, and the drive coupling 24 is close to One end of the screw jack 19 is equipped with a worm screw 41 that cooperates with the screw jack 19 to realize power transmission.

For the further extension of the fifth embodiment, the present invention can also have two ways of transmission and direction change, which are as follows:

Embodiment six:

The bevel gear direction change mechanism includes a No. 1 driving bevel gear 30 installed on the shaft of the driving motor 18 , and a No. 1 driven bevel gear 31 installed on the driving coupling 24 and meshing with the No. 1 driving bevel gear 30 .

Embodiment seven:

As shown in Figure 20, described bevel gear direction changing mechanism comprises No. 2 driving bevel gear 32 installed on the shaft of drive motor 18, transmission shaft 34 that is horizontally installed on the ground 17, is installed on transmission shaft 34 and with two No. 2 driven bevel gear 33 meshed with No. 3 driving bevel gear 32, No. 3 driving bevel gear 35 installed on transmission shaft 34, No. 3 driven bevel gear 35 meshing with No. 3 driving bevel gear and installed on drive coupling 24 Bevel gear 36.

The drive couplings 24 are connected with coupling brackets 29 fixed on the ground 17 .

The screw jack of the present invention also includes two kinds of implementation modes, respectively as follows:

Embodiment eight:

As shown in Figures 3 to 8, the screw jack 19 includes a fixed base, a platform that rotates around the fixed base, a storage box 6 installed on the platform, a spring flat belt 1 stored in the storage box 6, and a The toothed spring bar 2 that is in the fixed base and cooperates with the spring flat belt 1 to form a spiral cylinder. It is installed on the platform and is used to restrain the toothed spring bar 2 from lifting or shrinking. The belt track lifting mechanism 3 is used to make the spring The flat belt 1 is engaged with the track guide frame 4 of the toothed spring bar 2 . The drive motor 18 drives the platform to rotate, and then drives the belt track lifting mechanism 3 to rotate, and the belt track lifting mechanism 3 makes the toothed spring bar 2 rise and fall under the guidance of the belt track lifting mechanism 3, and synchronously pulls the spring flat belt 1 spiral Climbing, under the pushing effect of the rail guide frame 4, the spring flat belt 1 and the toothed spring bar 2 engage and form a spiral rising cylinder.

The fixed base includes a lifting mechanism base 10, a force-supporting barrel 5 vertically installed on the upper end of the lifting mechanism base 10 through a rotating pair, and several fixed brackets 11 for limiting the degree of freedom of the toothed spring bar 2 in rotation. The fixed bracket 11 of the present invention can prevent the toothed spring bar 2 from rotating during the lifting process. If the toothed spring bar 2 rotates, the flat spring belt 1 and the toothed spring bar 2 will only idle without rising Movement, i.e. idling, would result in the inability to perform the lift function.

The platform includes a storage box bracket 7 installed on the upper end of the fixed base and relatively freely rotatable with the storage box 6 , and a driving force input mechanism 8 installed on the lower end surface of the storage box bracket 7 . The driving motor 18 drives the driving force input mechanism 8, thereby driving the storage box bracket 7, which can drive the belt track lifting mechanism 3 to rotate.

The driving force input mechanism 8 is any one of a sprocket wheel and a worm wheel.

The spring flat belt 1 is provided with several rows of evenly distributed belt holes 1a along the length direction of the spring flat belt 1; the toothed spring bar 2 is evenly provided with teeth 2a which can engage with the belt holes 1a. The toothed spring bar 2 constantly makes the new tooth 2a bite into the new belt hole 1a on the spring flat belt 1 in the process of rising, so that the continuous climbing of the helical cylinder can be realized.

The lifting mechanism 3 with a track includes a lifting cylinder 3a, and the lifting cylinder 3a is provided along its own axis direction for guiding the lifting of the toothed spring bar 2 and constituting a double-row spiral arrangement. Roller 3b. The distance between the two paired limit rollers 3b on the double-row helical arrangement is greater than the thickness of the toothed spring bar 2 . Driven by the rotation force of the lifting cylinder 3a, the toothed spring bar 2 is lifted upward along the double-row helically arranged limit rollers 3b. The present invention adopts double-row helically arranged limit rollers 3b to guide the lifting of the toothed spring bar 2, which effectively prevents the shaking and dislocation of the toothed spring bar 2 during the lifting process, and ensures the accuracy and stability of the movement. Stability, so that the tooth 2a and the belt hole 1a can be engaged correspondingly.

The lifting cylinder 3a is installed on the upper end of the supporting barrel 5, and the limiting roller 3b can rotate around the joint with the lifting cylinder 3a.

Further, the limiting roller 3b is a roller bearing.

The storage box bracket 7 is provided with a space 15 for the toothed spring bar 2 to pass through when lifting, so as to ensure that the lifting motion of the toothed spring bar 2 does not interfere with the rotary motion of the storage box bracket 7, and the structure The design is reasonable.

The upper end of the storage box bracket 7 is uniformly provided with several storage box bottom bearing seats 14 for matching with the bottom of the storage box 6 along the circumferential direction. In the circumferential direction of the storage box 6, several storage box external bearing frames 13 installed on the upper end of the storage box bracket 7 are evenly arranged. The advantage of such a structural design is to ensure that the storage box 6 can rotate arbitrarily with the elastic force of the spring flat belt 1 .

Described track guide frame 4 comprises several guide brackets 4a distributed along the circumferential direction, is installed on the corresponding guide brackets 4a to form the same pitch as the helical cylinder and is used to extrude the spring flat band 1 so that the spring flat band 1 is aligned with the teeth Several clamping blocks 4b engaged with type spring bar 2. The clamping block 4b staggers the occlusal position on the spring flat belt 1 and the toothed spring bar 2 and is offset against the outer surface of the spring flat belt 1, and the spring flat belt 1 can gradually approach the toothed spring bar 2 by using the clamping block 4b and finally The spring flat belt 1 and the toothed spring bar 2 are snapped together.

Further, the number of blocks 4b installed on each guide bracket 4a is two or three.

The axis of the cylinder formed by stacking the toothed spring bars 2 coincides with the axis of the barrel body 5 under force. After the toothed spring bars 2 of the present invention are stacked together, the teeth 2a on each pitch overlap with the teeth at the same position on the adjacent pitches in the vertical direction, so that the toothed spring bars 2 are stacked together The rear teeth 2a form a series of strips vertically arranged, and then the fixed bracket 11 is stuck between the strips to prevent the toothed spring strip 2 from rotating during the lifting process.

The upper end of the spiral cylinder is connected with a fixed chuck 9 on the top of the lifting body, and the upper end of the fixed chuck 9 on the top of the lifting body can be used to carry objects.

A fixing base 16 is installed on the upper end of the lifting mechanism base 10 .

Embodiment nine:

As shown in Figures 9 to 12, the screw jack 19 includes a fixed base, a platform that rotates around the fixed base, a storage box 6 installed on the platform, a spring flat belt 1 stored in the storage box 6, and a The toothed spring bar 2 that is in the fixed base and cooperates with the spring flat belt 1 to form a spiral cylinder. It is installed on the platform and is used to restrain the toothed spring bar 2 from lifting or shrinking. The belt track lifting mechanism 3 is used to make the spring The flat belt 1 is engaged with the track guide frame 4 of the toothed spring bar 2 . The drive motor 18 drives the platform to rotate, and then drives the belt track lifting mechanism 3 to rotate, and the belt track lifting mechanism 3 makes the toothed spring bar 2 rise and fall under the guidance of the belt track lifting mechanism 3, and synchronously pulls the spring flat belt 1 spiral Climbing, under the pushing effect of the rail guide frame 4, the spring flat belt 1 and the toothed spring bar 2 engage and form a spiral rising cylinder.

The fixed base includes a lifting mechanism base 10, and a force-bearing support barrel 5 vertically installed on the upper end of the lifting mechanism base 10 through a rotating pair.

The lower end of the platform is provided with an outer cover frame 101 connected with the force-supporting barrel body 5 of the fixed base and used to cover the toothed spring bars 2 in the stacked state.

The platform includes a storage box bracket 7 installed on the upper end of the fixed base through an outer cover frame 101 and relatively freely rotatable with the storage box 6 , and a driving force input mechanism 8 installed on the lower end surface of the storage box bracket 7 . The driving motor 18 drives the driving force input mechanism 8, thereby driving the storage box bracket 7, which can drive the belt track lifting mechanism 3 to rotate.

The driving force input mechanism 8 is any one of a sprocket wheel and a worm wheel.

The spring flat belt 1 is provided with several rows of evenly distributed belt holes 1a along the length direction of the spring flat belt 1; the toothed spring bar 2 is evenly provided with teeth 2a which can engage with the belt holes 1a. The toothed spring bar 2 constantly makes the new tooth 2a bite into the new belt hole 1a on the spring flat belt 1 in the process of rising, so that the continuous climbing of the helical cylinder can be realized.

The lifting mechanism 3 with a track includes a lifting cylinder 3a, and the lifting cylinder 3a is provided along its own axis direction for guiding the lifting of the toothed spring bar 2 and constituting a double-row spiral arrangement. Roller 3b. The distance between the two paired limit rollers 3b on the double-row helical arrangement is greater than the thickness of the toothed spring bar 2 . Driven by the rotation force of the lifting cylinder 3a, the toothed spring bar 2 is lifted upward along the double-row helically arranged limit rollers 3b. The present invention adopts double-row helically arranged limit rollers 3b to guide the lifting of the toothed spring bar 2, which effectively prevents the shaking and dislocation of the toothed spring bar 2 during the lifting process, and ensures the accuracy and stability of the movement. Stability, so that the tooth 2a and the belt hole 1a can be engaged correspondingly.

The lifting cylinder 3a is installed on the upper end of the supporting barrel 5, and the limiting roller 3b can rotate around the joint with the lifting cylinder 3a.

Further, the limiting roller 3b is a roller bearing.

The upper end of the storage box bracket 7 is uniformly provided with several storage box bottom bearing seats 14 for matching with the bottom of the storage box 6 along the circumferential direction. In the circumferential direction of the storage box 6, several storage box external bearing frames 13 installed on the upper end of the storage box bracket 7 are evenly arranged. The advantage of such a structural design is to ensure that the storage box 6 can rotate arbitrarily with the elastic force of the spring flat belt 1 .

The track guide frame 4 includes an outer frame 4c that is coaxially distributed with the belt track lifting mechanism 3 and is in a non-closed ring shape, and is evenly helically distributed along the inner side wall of the outer frame 4c and has the same pitch as the helical cylinder. a block 4d.

Further, the stopper 4d staggers the occlusal position on the spring flat belt 1 and the toothed spring bar 2 and is against the outer surface of the spring flat belt 1, and the spring flat belt 1 can gradually approach the toothed spring bar by using the stopper 4d 2 and finally make the spring flat belt 1 and the toothed spring bar 2 bite together.

The outer frame 4c is provided with a gap 102. During the rotation of the track guide frame 4, the spring flat belt 1 in the storage box 6 can pass through the gap 102 and enter the track guide frame 4, so as to be connected with the toothed spring bar. 2. For occlusion, the structure design is reasonable and will not cause interference during movement.

The axis of the cylinder formed by stacking the toothed spring bars 2 coincides with the axis of the barrel body 5 under force. After the toothed spring bars 2 of the present invention are stacked together, the teeth 2a on each pitch overlap with the teeth at the same position on the adjacent pitches in the vertical direction, so that the toothed spring bars 2 are stacked together The rear teeth 2a form a row of vertically arranged strips.

The upper end of the spiral cylinder is connected with a fixed chuck 9 on the top of the lifting body, and the upper end of the fixed chuck 9 on the top of the lifting body can be used to carry objects.

As shown in Figure 21, it is a schematic diagram of an implementation state of the present invention, including a plurality of stage surfaces 23, such as eight stages of A, B, C, D, E, F, G, H listed in Figure 21 When the table 23 is working, the B and C surfaces can be raised first, then the F and G surfaces can be raised, and finally the A, D, E, and H surfaces can be raised. lift.

As shown in Figure 22, it is another kind of implementation status schematic diagram of the present invention, has included a plurality of stage tops 23, such as J, K, L three stage tops 23 listed in Figure 22, during use, J, K, The three sides of L can all be lowered to form a large flat field, and can also be raised and lowered in stages to form a stepped auditorium.

The structure design of the present invention is reasonable, replaces the traditional hydraulic lift and screw lift stage, greatly saves space, and improves safety performance.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and what are described in the above-mentioned embodiments and description are only the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention also has various Variations and improvements all fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A spiral stage lifting system is characterized in that: comprise several spiral lifts (19) arranged side by side along the ground (17), the stage table (23) installed on the top of the spiral lift (19), in order to drive several Any one screw jack (19) or a plurality of screw jacks (19) in the screw jacks (19) rotate the driving motor (18), and are installed between the ground (17) and the stage table (23) for auxiliary support. An auxiliary support frame (20) also includes a controller for controlling the drive motor (18). 2. A spiral stage lifting system according to claim 1, characterized in that: the top of the spiral lift (19) is provided with a connecting and fixing plate (25), and the connecting and fixing plate (25) is installed with a control A position sensor (26) and a gravity sensor (27) that are connected to the device, and the ground (17) is equipped with an anti-lower device (28) for the lower limit of the connecting fixed plate (25). 3. A spiral stage lifting system according to claim 1, characterized in that: the spiral lift (19) comprises a fixed base, a platform rotating around the fixed base, and a storage box (6 ), the spring flat belt (1) stored in the storage box (6), the toothed spring bar (2) which is installed in the fixed base and cooperates with the spring flat belt (1) to form a spiral cylinder, and is installed on the platform A belt track lifting mechanism (3) for restraining the lifting or contraction movement of the toothed spring bar (2), and a track guide frame (4) for engaging the spring flat belt (1) with the toothed spring bar (2). 4. A spiral stage lifting system according to claim 1, characterized in that: the auxiliary support frame (20) is a V-shaped support bracket, and the V-shaped support bracket includes a hinged joint with the ground (17). A first board (37), a second board (38) whose one end is hinged to the end of the first board (37) away from the ground (17) and whose other end is hinged to the stage table (23). 5. A spiral stage lifting system according to claim 1, characterized in that: the auxiliary support frame (20) is a bamboo-type lifting support bracket, and the bamboo-type lifting support bracket includes The bottom frame (39) on (17), several lifting frames (40) that can slide axially along the bottom frame (39), the adjacent two lifting frames (40) in the several lifting frames (40) axial sliding fit. 6. A spiral stage lifting system according to claim 1, characterized in that: the auxiliary support frame (20) is a scissor-type telescopic support, and the bottom of the scissor-type telescopic support is fixed on the ground (17) On, the top of the scissors type telescopic support is connected with the stage table (23). 7. A spiral stage lifting system according to claim 1, characterized in that: a worm (41) is installed on the driving motor (18), and the worm (41) cooperates with the screw elevator (19) to realize power transfer. 8. A spiral stage lifting system according to claim 1, characterized in that: a bevel gear direction changing mechanism is installed on the driving motor (18), and a drive coupling is connected to the output end of the bevel gear direction changing mechanism. A shaft device (24), a worm (41) that cooperates with the screw jack (19) to realize power transmission is installed on the drive shaft coupling (24) near one end of the screw jack (19). 9. A kind of spiral stage lifting system according to claim 1, characterized in that: the spring flat belt (1) is provided with several rows of uniformly distributed belt holes ( 1a); teeth (2a) that can engage with the belt holes (1a) are evenly arranged on the toothed spring bar (2). 10. A spiral stage lifting system according to claim 1, characterized in that: said belt track lifting mechanism (3) comprises a lifting cylinder (3a), on the lifting cylinder (3a) along The axial direction of itself is provided with limit rollers (3b) for guiding the lifting of the toothed spring bar (2) and forming a double-row helical arrangement.