CN212836948U - Lifting stage - Google Patents

Abstract

The utility model relates to a lifting stage, which comprises a bottom base station, wherein the upper end surface of the bottom base station supports a lower supporting beam through an upper sliding rail set, at least two rows of scissor mechanisms are transversely arranged on the bottom base station, each group of scissor mechanism is at least provided with an outer scissor arm and an inner scissor arm which are crossed, the lower foot end of the scissor arm in the bottom layer is fixed with the upper end of the bottom base station, the lower end of the lower sliding rail set jointly supports an upper supporting beam which is parallel to the lower supporting beam, the upper foot end of the scissor arm on the other side of the top end of the scissor mechanism is hinged with the bottom of an upper platform, a bottom telescoping mechanism is arranged on the bottom base, one of the top blocks is fixedly connected with the lower supporting beam, the other top block is fixedly connected with the bottom base station, the telescopic direction of the telescopic mechanism is parallel to the extending direction of the slide rail, the part of the first rotating arm connected with the third rotating arm and the part of the second rotating arm connected with the fourth rotating arm are respectively matched with a threaded section with opposite rotating directions on a screw rod in a spiral way.

Description

Lifting stage

Technical Field

The utility model relates to a stage machinery, concretely relates to lifting stage.

Background

With the increasing enrichment of cultural life, the requirements of people on the stage effect in performance activities are higher and higher, when actors perform the stage performance, the actors perform the ascending performance of the elevating stage commonly, and the elevating stages are two types, one type is arranged below the stage, and performers enter from the lower part of the stage and ascend to the stage; the second type is a form of moving props, which is placed on a stage, and after a performer climbs the props, the props are controlled to ascend to achieve the purpose. Compared with a fixed lifting stage, the movable lifting stage has the characteristic of flexible movement, and is the development direction of the current stage equipment, most conventional performance equipment is used by leasing, the mobility of the leasing equipment is stronger, most conventional lifting stages use a hydraulic lifting technology or adopt a relatively complex lifting mechanism to lift and descend the stage, and by adopting the mode, a hydraulic system needs to carry out more system part configuration, such as a hydraulic pump, a control valve and the like need to be additionally arranged, the weight and the cost of the whole device are greatly increased by adopting the hydraulic lifting technology or the relatively complex lifting mechanism, the carrying problem of the stage in the circulation process is not facilitated, and meanwhile, the hydraulic system generally has the risk of oil pollution, if not properly handled, the leak not only contaminates the field, but can also cause fire and explosion hazards.

Disclosure of Invention

The utility model aims at prior art not enough, provide a lifting stage, its light in weight, simple structure, stability are strong, go up and down effectually, also can improve the security of the stage use of stage simultaneously and can reduce use cost.

The purpose of the utility model is realized like this: a lifting stage comprises a bottom base station, wherein the upper end surface of the bottom base station supports a lower supporting beam through an upper sliding rail set, at least two rows of scissor mechanisms are transversely arranged on the bottom base station, each scissor mechanism is at least provided with an outer scissor arm and an inner scissor arm which are crossed, the outer scissor arm and the inner scissor arm are hinged through a pivot at a spatial crossing position, the lower foot end of the outer scissor arm at the bottom layer is hinged with the upper end of the lower supporting beam, the lower foot end of the inner scissor arm at the bottom layer is fixed with the upper end of the bottom base station, an upper platform is arranged above the scissor mechanisms, a lower sliding rail set is arranged at the bottom of the upper platform, the lower ends of the lower sliding rail sets jointly support an upper supporting beam which is parallel to the lower supporting beam, the upper foot end of the scissor arm at one side of the top end of the scissor mechanism, which is close to the upper supporting beam, is hinged with the lower end of the upper supporting beam, the upper foot end of, the bottom base station is provided with a bottom telescopic mechanism which comprises a left top block and a right top block which are opposite, one of the top blocks is fixedly connected with the lower supporting beam, the other top block is fixedly connected with the bottom base station, the telescopic direction of the telescopic mechanism is parallel to the extending direction of the slide rail, the telescopic mechanism comprises a first rotating arm, a second rotating arm, a third rotating arm and a fourth rotating arm which are arranged between the left top block and the right top block, the four rotating arms are distributed in a parallelogram shape, wherein the top ends of the first rotating arm and the second rotating arm are hinged with the left top block, the top ends of the third rotating arm and the fourth rotating arm are hinged with the right top block, the first rotating arm is hinged with the third rotating arm, the second rotating arm is hinged with the fourth rotating arm, the part of the first rotating arm connected with the third rotating arm and the part of the second rotating arm connected with the fourth rotating arm are respectively matched with a threaded section with opposite rotating directions on a screw rod in a spiral way.

The fixed roof beam down of fixing on the bottom base station, the lower foot end of interior shear arm is articulated with lower fixed beam, fixed roof beam is gone up to the upper mounting plate lower fixing, the shear fork mechanism top deviates from the articulated of shearing arm upper foot end and lower fixed beam of upper supporting beam one side, it is fixed with the bottom base station through bolt and pin respectively to go up fixed beam, lower fixed beam, it is fixed with the upper mounting plate through bolt and pin respectively to go up fixed beam, lower fixed beam.

Each group of scissors fork mechanism is provided with three layers of inner scissors arms and outer scissors arms in the vertical direction, the upper end of the inner scissors arm at the bottom layer is hinged with the lower end of the outer scissors arm at the second layer, the upper end of the outer scissors arm at the second layer is hinged with the lower end of the inner scissors arm at the top layer, the upper end of the outer scissors arm at the bottom layer is hinged with the lower end of the inner scissors arm at the second layer, and the upper end of the outer scissors arm at the second layer is hinged with the lower end of the outer scissors arm at.

The end of the screw rod is provided with an insertion section with a non-circular cross section, the insertion section is provided with an insertion sleeve, the external end of the sleeve is provided with a radial through hole, and a transverse handle is matched in the radial through hole.

And the bottom base station is provided with a mobile power supply and a driving motor, and the power end output end of the driving motor is in power connection with the extending end of the screw rod.

The upper surface of the upper platform is provided with a rubber antiskid table top.

The lower end of the bottom base station is respectively provided with a universal wheel, and the universal wheels are provided with braking devices.

And a drooping skirt edge is fixed around the upper platform.

Adopt above-mentioned scheme, beneficial effect is as follows, the bottom base station is used for bottom supporting to cut fork mechanism and upper mounting plate, when cutting the distance between the lower foot end of the outer arm of cutting of fork mechanism bottom and interior arm of cutting, the distance between the lower foot end of the outer arm of cutting of fork mechanism top and interior arm of cutting also can reduce simultaneously, cut fork mechanism upwards jack-up upper mounting plate, whole telescopic machanism's left kicking block, right kicking block produces opposite motion or back-to-back motion, and then can make the lower supporting beam produce lateral sliding, the upper supporting beam also produces lateral sliding simultaneously, and then go up or remove the upper mounting plate down. When the screw rod rotates, the included angle between the top ends of the first rotating arm and the second rotating arm and the hinging of the left top block is reduced or enlarged, and the included angle between the top ends of the third rotating arm and the fourth rotating arm and the hinging of the right top block is reduced or enlarged, so that the left top block and the right top block move in opposite directions or move in the opposite directions, the lower supporting beam can slide transversely, and the bottom layer of the shearing fork mechanism can be pushed to move outwards to shear the arm. Adopt the utility model discloses well telescopic machanism can effectively carry out the reinforcement effect of big multiple, and is reliable and stable, bearing capacity is big, adopts simultaneously the utility model discloses, need not the supporting system of complicated hydraulic pressure and the supporting system of complicated cable, effectively avoid using hydraulic pump and control valve etc. has increased the weight and the cost of whole device greatly, is unfavorable for the difficult circulation of stage in the lease service, carries scheduling problem, has also avoided greasy dirt pollution's risk simultaneously, has improved the cleanliness factor in place, also improves the security of the stage use of stage and can reduce use cost.

Adopt above-mentioned utility model, its light in weight, simple structure, stability are strong, go up and down effectually, also can improve the security that the stage of stage was used simultaneously and can reduce use cost.

The invention will be further explained with reference to the drawings and the specific embodiments.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the skirt edge arrangement of the present invention.

In the drawing, 10 is a bottom base, 11 is an upper sliding rail set, 12 is a lower supporting beam, 13 is a scissor fork mechanism, 131 is an outer scissor arm, 132 is an inner scissor arm, 133 is a pivot, 18 is an upper supporting beam, 19 is an upper platform, 20 is a lower sliding rail set, 21 is a telescopic mechanism, 211 is a left top block, 216 is a right top block, 212 is a first rotating arm, 213 is a second rotating arm, 214 is a third rotating arm, 215 is a fourth rotating arm, 30 is a skirt, 33 is a screw, 34 is a lower fixing beam, 35 is an upper fixing beam, 351 is an insertion section, 37 is a sleeve, and 38 is a transverse handle.

Detailed Description

Specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 1 to 2, a lifting stage comprises a bottom base platform 10, universal wheels are respectively arranged at the lower end of the bottom base platform 10, braking devices are arranged on the universal wheels, the universal wheels are arranged to facilitate temporary transportation, and the carrying efficiency is improved. The upper end surface of the bottom base 10 supports a lower support beam 12 through an upper slide rail set 11. Two rows of scissors mechanisms 13 are transversely arranged on the bottom base station 10 at least, each group of scissors mechanisms 13 is provided with at least one layer of crossed outer scissors arm 131 and inner scissors arm 132, the outer scissors arm 131 and the inner scissors arm 132 are hinged through a pivot 133 at a spatial crossing position, the lower foot end of the outer scissors arm 131 of the bottom layer is hinged with the upper end of the lower supporting beam 12, the lower foot end of the inner scissors arm 132 of the bottom layer is fixed with the upper end of the bottom base station 10, an upper platform 19 is arranged above the scissors mechanisms 13, a rubber anti-skid table top can be arranged on the upper surface of the upper platform 19, and the rubber anti-skid table top is arranged to prevent skidding, so that the use safety of a user is improved. Further, the drooping skirt edge 30 is fixed around the upper platform 19, the stage effect can be guaranteed by the skirt edge 30, and mechanical equipment influencing the stage effect is covered. The bottom of the upper platform 19 is provided with a lower slide rail set 20, the slide rails can adopt roller linear guide rails, the lower ends of the lower slide rail set 20 jointly support an upper support beam 18 parallel to the lower support beam 12, the upper foot end of the shear arm at one side of the top end of the shear fork mechanism 13 close to the upper support beam 18 is hinged with the lower end of the upper support beam 18, the upper foot end of the shear arm at the other side of the top end of the shear fork mechanism 13 is hinged with the bottom of the upper platform 19, when each set of shear fork mechanism 13 is provided with a layer of crossed outer shear arm 131 and inner shear arm 132, the upper foot end of the inner shear arm 132 at the top end of the shear fork mechanism 13 is hinged with the lower end of the upper support beam 18, and the upper foot end of the outer shear arm 131 at the top end of the shear fork mechanism 13. Certainly, when a larger amplitude of lifting is performed, the scissor mechanism 13 may be provided with multiple layers, taking the three-layer scissor mechanism 13 as an example, the scissor mechanism 13 is provided with more than three layers of inner scissor arms and outer scissor arms in the up-down direction, the upper end of the inner scissor arm at the bottom layer is hinged with the lower end of the outer scissor arm at the second layer, and the upper end of the outer scissor arm at the second layer is hinged with the lower end of the inner scissor arm at the top layer; the upper end of the bottom layer outer shearing arm is hinged with the lower end of the second layer inner shearing arm, and the upper end of the second layer inner shearing arm is hinged with the lower end of the top layer outer shearing arm. The bottom base 10 is provided with a bottom telescoping mechanism 21, the telescoping mechanism 21 comprises a left top block 211 and a right top block 216 which are opposite, one of the top blocks is fixedly connected with the lower support beam 12, the other top block is fixedly connected with the bottom base 10, the telescoping direction of the telescoping mechanism is parallel to the extending direction of the slide rail, the telescoping mechanism 21 comprises a first rotating arm 212, a second rotating arm 213, a third rotating arm 214 and a fourth rotating arm 215 which are arranged between the left top block 211 and the right top block 216 and are distributed in a parallelogram shape, wherein the top ends of the first rotating arm 212 and the second rotating arm 213 are hinged with the left top block 211, the top ends of the third rotating arm 214 and the fourth rotating arm 215 are hinged with the right top block 216, the first rotating arm 212 is hinged with the third rotating arm 214, the second rotating arm 213 is hinged with the fourth rotating arm 215, and the connecting part of the first rotating arm 212 and the third rotating arm 214 and the connecting part of the second rotating arm 213 and the fourth rotating arm 215 are respectively hinged with threads with opposite directions of a screw 33 The sections are matched in a spiral way; the end of screw rod 33 sets up the cross section and is non-circular's grafting section 351, grafting sleeve 37 on the grafting section 351, sleeve 37's external end sets up radial through-hole, radial through-hole fit is violently 38, adopts this kind of structure can give screw rod 33 transmission moment of torsion, conveniently rotates the operation in the narrower position in space simultaneously, and when violently 38 and lower part space interfere, can radially slide violently 38, avoid interfering. Certainly, install portable power source and driving motor on the bottom base station 10, driving motor's power end output and the overhanging end power of screw rod 33 are connected, have avoided work such as cable laying, circuit repacking through portable power source's arrangement, can use driving motor to carry out quick drive.

Preferably, the bottom base 10 is fixed with a lower fixed beam 34, the lower leg end of the inner shear arm 132 is hinged to the lower fixed beam 34, the upper platform 19 is fixed with an upper fixed beam 35, the upper leg end of the outer shear arm 131 is hinged to the lower fixed beam 34, the upper fixed beam 35 and the lower fixed beam 34 are respectively connected and fixed to the bottom base 10 through bolts and pins, and the upper fixed beam 35 and the lower fixed beam 34 are respectively connected and fixed to the upper platform 19 through bolts and pins.

With the above scheme, when the screw 33 rotates, the included angle between the top ends of the first rotating arm 212 and the second rotating arm 213 and the left top block 211 is reduced or enlarged, the included angles between the top ends of the third rotating arm 214 and the fourth rotating arm 215 and the right top block 216 become smaller or larger, the left top block 211 and the right top block 216 of the whole telescopic mechanism 21 move towards or away from each other, thereby enabling the lower support beam 12 to slide laterally, and the upper support beam 18 to slide laterally, thereby pushing the bottom layer outer shearing arm 131 of the shearing fork mechanism 13 to move, when the distance between the bottom layer outer shearing arm 131 and the lower leg end of the inner shearing arm 132 of the shearing fork mechanism 13 is reduced, the distance between the lower leg ends of the outer shearing arm 131 and the inner shearing arm 132 on the top layer of the scissors mechanism 13 is also reduced synchronously, and the scissors mechanism 13 jacks up the upper platform 19, so as to move the upper platform 19 up or down. Adopt the utility model discloses well telescopic machanism 21 can realize carrying out the reinforcement effect of big multiple, and is reliable and stable, bearing capacity is big, adopts the utility model discloses, can provide the stage of certain height range as required, adopt simultaneously the utility model discloses, need not complicated hydraulic pressure supporting system and complicated cable supporting system, effectively avoid using supporting equipment such as hydraulic pump and control valve, alleviateed the weight and the cost of whole device greatly, improved stage circulation among the lease service greatly, transport scheduling problem, also avoided greasy dirt pollution's risk simultaneously, improved the cleanliness factor in place, also improved the security of the stage use of stage and can reduce use cost.

Adopt above-mentioned utility model, its light in weight, simple structure, stability are strong, go up and down effectually, also can improve the security that the stage of stage was used simultaneously and can reduce use cost.

Claims (8)

1. The utility model provides a lifting stage, includes bottom base station, its characterized in that: the upper end surface of the bottom base station supports a lower supporting beam (12) through an upper sliding rail set (11), at least two rows of shear fork mechanisms (13) are transversely arranged on the bottom base station, each shear fork mechanism (13) is at least provided with an outer shear arm (131) and an inner shear arm (132) which are crossed, the outer shear arm (131) and the inner shear arm (132) are hinged through a pivot (133) at a spatial crossing position, wherein the lower foot end of the outer shear arm (131) at the bottom layer is hinged with the upper end of the lower supporting beam (12), the lower foot end of the inner shear arm (132) at the bottom layer is fixed with the upper end of the bottom base station, an upper platform (19) is arranged above the shear fork mechanisms (13), the bottom of the upper platform (19) is provided with a lower sliding rail set (20), the lower end of the lower sliding rail set (20) jointly supports an upper supporting beam (18) which is parallel to the lower supporting beam (12), and the upper foot end of the upper arm, which is close to one side of the upper supporting beam (18), at the top end of the shear, the upper foot end of the shearing arm on the other side of the top end of the shearing fork mechanism (13) is hinged with the bottom of the upper platform (19), a bottom telescopic mechanism (21) is arranged on a bottom base station, the telescopic mechanism (21) comprises a left top block (211) and a right top block which are opposite, one top block is fixedly connected with the lower supporting beam (12), the other top block is fixedly connected with the bottom base station, the telescopic direction of the telescopic mechanism is parallel to the extending direction of the sliding rail, the telescopic mechanism (21) comprises a first rotating arm (212), a second rotating arm (213), a third rotating arm (214) and a fourth rotating arm (215) which are arranged between the left top block (211) and the right top block, the four rotating arms are distributed in a parallelogram shape, wherein the top ends of the first rotating arm (212) and the second rotating arm (213) are hinged with the left top block (211), and the top ends of the third rotating arm (214) and the fourth rotating arm (215) are hinged with the right top, the first rotating arm (212) is hinged with the third rotating arm (214), the second rotating arm (213) is hinged with the fourth rotating arm (215), and the part where the first rotating arm (212) is connected with the third rotating arm (214) and the part where the second rotating arm (213) is connected with the fourth rotating arm (215) are respectively in threaded fit with threaded sections in opposite directions on a screw (33).

2. A stage according to claim 1, wherein: fixed lower fixed beam (34) on the bottom base station, the lower foot end of interior scissor arm (132) is articulated with lower fixed beam (34), fixed beam (35) in upper mounting plate (19) lower fixing, scissor fork mechanism (13) top deviates from the articulated of shearing arm upper foot end and lower fixed beam (34) of upper supporting beam (18) one side, it is fixed with the bottom base station through bolt and pin respectively to go up fixed beam (35), lower fixed beam (34), it is fixed with upper mounting plate (19) through bolt and pin respectively to go up fixed beam (35), lower fixed beam (34).

3. A stage according to claim 2, wherein: each group of scissors fork mechanism (13) is provided with three layers of inner scissors arms and outer scissors arms in the up-down direction, the upper end of the inner scissors arm at the bottom layer is hinged with the lower end of the outer scissors arm at the second layer, the upper end of the outer scissors arm at the second layer is hinged with the lower end of the inner scissors arm at the top layer, the upper end of the outer scissors arm at the bottom layer is hinged with the lower end of the inner scissors arm at the second layer, and the upper end of the inner scissors arm at the second layer is hinged with the lower end of the outer scissors.

4. A stage according to claim 1, wherein: the end of screw rod (33) sets up cross section and is non-circular grafting section (351), grafting sleeve (37) on grafting section (351), the external end of sleeve (37) sets up radial through-hole, horizontal handle (38) of cooperation in the radial through-hole.

5. A stage according to claim 1, wherein: and a mobile power supply and a driving motor are arranged on the bottom base station, and the power end output end of the driving motor is in power connection with the extending end of the screw rod (33).

6. A stage according to claim 1, wherein: the upper surface of the upper platform (19) is provided with a rubber antiskid table surface.

7. A stage according to claim 1, wherein: the lower end of the bottom base station is respectively provided with a universal wheel, and the universal wheels are provided with braking devices.

8. A stage according to claim 1, wherein: and a drooping skirt edge (30) is fixed around the upper platform (19).

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