CN213330206U - Four-column synchronous lifting system - Google Patents

Abstract

The utility model discloses a four-column synchronous lifting system, which comprises two lifting mechanisms arranged in parallel, wherein each lifting mechanism comprises a left upright and a right upright which are internally hollow, and a crossbeam arranged between the left upright and the right upright; the utility model discloses a lifting function is realized in step to two elevating system of parallel arrangement, and the ceiling hydro-cylinder makes the steel wire rope of the inner tube bottom of fixed setting in left stand drive the inner tube synchronous lift in the right stand to the production jacking effect of the inner tube in the left stand, and the oil pipe of the ceiling hydro-cylinder that sets up in two left stands of elevating system communicates mutually, finally realizes the function that four stands go up and down in step.

Description

Four-column synchronous lifting system

Technical Field

The utility model belongs to the technical field of stage lift hydraulic system, a synchronous operating system of four posts is related to.

Background

The stage is a space provided for actors to perform in theaters, live television, shooting and the like, can enable audiences to concentrate on the performance of the actors and obtain ideal ornamental effects, is generally composed of one or more platforms, some of the platforms can be lifted, and along with the improvement of living standard of people, higher and higher requirements are provided for performance effects, so that the displayed pictures have three-dimensional effect, the immersive feeling of the audiences is stronger, and the requirements of the multi-element development of the society are met.

And the stage vehicle that flows can conveniently flow the performance, the stage vehicle that flows at present adopts many hydro-cylinders to support the ceiling and goes up and down, but at the hydro-cylinder lift in-process, because there is the deviation in the distance and the pressure of each hydro-cylinder, so the speed that causes the hydro-cylinder of different positions to lift is different, can not guarantee that the ceiling can realize steady lift, cause the stage ceiling to incline at the lift in-process easily, lead to dangerous accident easily, harm personnel safety, consequently need design a lift system who has synchronous raising and lowering functions, especially need design a lift system that can realize four support column synchronous lifts.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a four-column synchronous lifting system, fine solution the ceiling can not steadily go up and down when going up and down the problem.

In order to realize the purpose, the utility model discloses a technical scheme as follows: a four-column synchronous lifting system comprises two lifting mechanisms which are arranged in parallel, wherein each lifting mechanism comprises a left upright and a right upright which are hollow inside and a cross beam arranged between the left upright and the right upright;

both ends all are provided with a plurality of fifth wheels in the crossbeam, the middle part of crossbeam is provided with a plurality of take-up pulleys, two the bottom of inner tube all is provided with wire rope, wire rope's one end fixed connection is in the bottom of one of them inner tube, and roller, fifth wheel, take-up pulley fixed connection are walked around to wire rope's the other end in the bottom of another inner tube, the ceiling hydro-cylinder that sets up in two left stands of elevating system communicates the synchronous fuel feeding each other.

Further, the top of left side stand and right stand all is provided with guide flange, be provided with a plurality of steel balls in the guide flange, the bottom week side of inner tube is provided with first snap ring, flange department is provided with the second snap ring on the ceiling hydro-cylinder butt.

Furthermore, a maintenance window for maintaining the connecting wheel or the tensioning wheel is arranged on the cross beam, and a maintenance window cover plate is arranged on the maintenance window.

Furthermore, a supporting shaft for supporting the inner pipe is arranged in the bottom end of the right upright post in a penetrating mode.

Furthermore, a safety pin is arranged on the outer side wall of the upper end of the right upright post, a second through hole is formed in the position, corresponding to the safety pin, of the right upright post, and a second through hole corresponding to the second through hole is formed in the lower end of the inner tube arranged in the right upright post.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses a lifting function is realized in step to two elevating system of parallel arrangement, and the ceiling hydro-cylinder makes the steel wire rope of the inner tube bottom of fixed setting in left stand drive the inner tube synchronous lift in the right stand to the production jacking effect of the inner tube in the left stand, and the oil pipe of the ceiling hydro-cylinder that sets up in two left stands of elevating system communicates mutually, finally realizes the function that four stands go up and down in step, can guarantee the steady lift of ceiling.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view taken along A-A in FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;

FIG. 4 is a cross-sectional view taken along C-C of FIG. 1;

FIG. 5 is a cross-sectional view taken along line D-D of FIG. 1;

FIG. 6 is a cross-sectional view taken along line E-E of FIG. 1;

FIG. 7 is an enlarged view of a portion F of FIG. 1;

FIG. 8 is an enlarged view of a portion G of FIG. 1;

FIG. 9 is a sectional view taken along H-H in FIG. 1;

fig. 10 is a partial view of the right upright of the present invention;

fig. 11 is a schematic diagram of the wire winding of the present invention.

In the figure: 1. a left upright post; 2. a right upright post; 3. a cross beam; 4. a lower support; 5. a roller; 6. an inner tube; 7. an upper flange; 8. an upper support; 9. a ceiling oil cylinder; 10. a connecting wheel; 11. a tension wheel; 12. a wire rope; 13. a guide flange; 14. a steel ball; 15. maintaining the window cover plate; 16. a shear pin.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-11, the technical solution adopted by the present invention is as follows: a four-column synchronous lifting system comprises two lifting mechanisms which are arranged in parallel, wherein each lifting mechanism comprises a left upright 1 and a right upright 2 which are hollow inside, and a cross beam 3 welded between the left upright 1 and the right upright 2, the cross beam 3 is cuboid and hollow inside, the fixed connection parts of the left upright 1 and the right upright 2 and the cross beam 3 are provided with openings, the bottom ends of the left upright 1 and the right upright 2 are fixedly connected with a lower support 4 with an inner hollow structure through bolts or pins, the bottom ends of the left upright 1 and the right upright 2 are provided with idler wheels 5 through roller shafts, the two idler wheels 5 are not in the same vertical plane, the axial lead of each roller shaft is vertical to the height direction of the left upright 1 or the right upright 2, the left upright 1 and the right upright 2 are both provided with an inner tube 6, and the outer diameter of the inner tube 6 is smaller than the inner diameter of the left upright 1 or the right upright 2, the sliding of the inner pipe 6 is facilitated, the top end of the inner pipe 6 is welded or integrally formed with a connecting seat, the top end of the inner pipe 6 is connected with an upper support 8 through an upper flange 7 by bolts, the inner pipe 6 arranged in the left upright post 1 is connected with a ceiling oil cylinder 9 through a rolling shaft on a roller 5, the bottom end of the ceiling oil cylinder 9 is sleeved on the rolling shaft, two sides of the bottom end of the ceiling oil cylinder 9 are limited through shaft sleeves sleeved on the rolling shaft, in operation, the ceiling oil cylinder 9 and the rolling shaft are prevented from sliding relatively, and the top end of the ceiling oil cylinder 9 is abutted to the inner side surface of the upper;

two connecting wheels 10 are arranged at two ends in the cross beam 3 through connecting shafts, two tensioning wheels 11 are sleeved at the middle part in the cross beam 3 through tensioning wheel shafts, the connecting wheels 10 and the tensioning wheels 11 are arranged side by side, a first through hole for inserting the connecting shafts and the tensioning wheel shafts is arranged on the cross beam 3, a fixing bolt and a fixing sheet for fixing the connecting shafts and the tensioning wheel shafts are arranged on the outer side wall of the cross beam 3 corresponding to the first through hole, the axial lead of the connecting shafts or the tensioning wheel shafts and the axial lead of the rolling shafts are mutually parallel, steel wire ropes 12 are arranged at the bottoms of the two inner pipes 6, one end of one steel wire rope 12 is fixedly connected to the bottom of the inner pipe 6 in the left upright post 1, and the other end of the steel wire rope 12 sequentially bypasses the lower side of the roller 5, the upper side of the left connecting wheel 10, the lower side of the tensioning wheel 11, similarly, one end of another steel wire rope 12 is fixedly connected to the bottom of the inner tube 6 of the right column 2, the other end of another steel wire rope 12 sequentially bypasses the lower side of the roller 5, the upper side of the right connecting wheel 10, the lower side of the tensioning wheel 11 and the bottom of the inner tube 6 fixedly connected to the left column 1, the roller 5 arranged inside the bottom end of the left column 1 and the inner tube 6 arranged inside the right column 2 are in a group, the roller 5 arranged inside the bottom end of the right column 2 and the inner tube 6 arranged inside the left column 1 are in a group, two groups of devices are arranged to ensure that the left column 1 and the right column 2 can be synchronously lifted, and ceiling cylinders 9 arranged in the two left columns 1 of the lifting mechanism are mutually communicated for synchronous lifting of the four columns.

The top of left side stand 1 and right stand 2 all has guide flange 13 through screw or welding, be provided with a plurality of steel balls 14 in the guide flange 13, during operation, the outer wall of inner tube 6 rises or descends along guide flange 13, and the steel ball 14 that sets up reduces the frictional force between inner tube 6 and the guide flange 13, improves the precision that inner tube 6 goes up and down, makes inner tube 6 swift, the bottom week side of inner tube 6 is provided with first snap ring, and during operation, through the cooperation of first snap ring and connecting seat, prevents that inner tube 6 from breaking away from left stand 1 or right stand 2 when rising to the highest position, flange 7 department is provided with the second snap ring on the ceiling hydro-cylinder 9 butt, prevents that ceiling hydro-cylinder 9 from breaking away from inner tube 6.

The beam 3 is provided with a maintenance window for maintaining the connecting wheel 10 or the tension wheel 11, the maintenance window is fixedly provided with a maintenance window cover plate 15 through screws for facilitating maintenance, a supporting shaft for supporting the inner tube 6 is arranged in the bottom end of the right upright post 2 in a penetrating way, the inner tube 6 in the right upright post 2 is convenient to support when being lowered to the bottom end, the outer side wall of the upper end of the right upright post 2 is provided with a safety pin 16, a safety pin groove for placing the safety pin 16 and a pin rope clamped between the right upright post 2 and the safety pin 16 through a rope, a second through hole is arranged on the right upright post 2 at a position corresponding to the safety pin 16, the lower end of the inner tube 6 arranged in the right upright post 2 is provided with a second through hole corresponding to the second through hole, when the inner tube 6 is lifted to a proper position, the safety pin 16 is inserted into the second through hole through the second through hole, and the steel wire rope 12 is, the inner tube 6 provided in the right column 2 suddenly drops, resulting in damage to the lifted object.

When the lifting device works, two lifting mechanisms arranged in parallel form a set of four-column synchronous lifting system, ceiling oil cylinders 9 in two left upright posts 1 arranged in the lifting mechanisms are communicated with each other to realize four-column synchronous lifting, when the lifting device works, an inner tube 6 arranged in the left upright post 1 is gradually lifted along with the starting of the ceiling oil cylinders 9, a steel wire rope 12 wound on a roller 5 in the bottom end of the left upright post 1 bypasses a connecting wheel 10 at the left end of a cross beam 3, a tension wheel 11 and a connecting wheel 10 at the right end of the cross beam 3 and is fixedly connected with the bottom end of the inner tube 6 in a right upright post 2, a steel wire rope 12 wound on the roller 5 in the bottom end of the right upright post 2 bypasses the connecting wheel 10 at the right end of the cross beam 3, the tension wheel 11 and the connecting wheel 10 at the left end of the cross beam 3 and is fixedly connected with the bottom end of the inner tube 6 in the left upright, the safety pin 16 is inserted to prevent the inner tube 6 of the right upright 2 from sliding downwards.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (5)

1. The utility model provides a four post synchronous operating system which characterized in that: the lifting mechanism comprises a left upright and a right upright which are hollow inside and a cross beam arranged between the left upright and the right upright, the bottom ends of the left upright and the right upright are fixedly connected with lower supports, the bottom ends of the inside of the left upright and the right upright are respectively provided with a roller through a rolling shaft, inner pipes are respectively arranged in the left upright and the right upright, the top ends of the inner pipes are fixedly connected with upper supports through upper flanges, the inner pipes arranged in the left upright are provided with ceiling oil cylinders through the rolling shafts, and the top ends of the ceiling oil cylinders are abutted to the upper flanges;

both ends all are provided with a plurality of fifth wheels in the crossbeam, the middle part of crossbeam is provided with a plurality of take-up pulleys, two the bottom of inner tube all is provided with wire rope, wire rope's one end fixed connection is in the bottom of one of them inner tube, and roller, fifth wheel, take-up pulley fixed connection are walked around to wire rope's the other end in the bottom of another inner tube, the ceiling hydro-cylinder that sets up in two left stands of elevating system communicates the synchronous fuel feeding each other.

2. The four-column synchronous lifting system according to claim 1, wherein: the top of left side stand and right stand all is provided with guide flange, be provided with a plurality of steel balls in the guide flange, the bottom week side of inner tube is provided with first snap ring, flange department is provided with the second snap ring on the ceiling hydro-cylinder butt.

3. The four-column synchronous lifting system according to claim 1, wherein: the beam is provided with a maintenance window for maintaining the connecting wheel or the tensioning wheel, and the maintenance window is provided with a maintenance window cover plate.

4. The four-column synchronous lifting system according to claim 1, wherein: and a support shaft for supporting the inner pipe is arranged in the bottom end of the right upright post in a penetrating manner.

5. The four-column synchronous lifting system according to claim 1, wherein: the safety pin is arranged on the outer side wall of the upper end of the right upright post, a second through hole is formed in the position, corresponding to the safety pin, of the right upright post, and a second through hole corresponding to the second through hole is formed in the lower end of the inner tube in the right upright post.

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