CN216617035U

CN216617035U - Jacking compensation device of cantilever type lifting stage

Info

Publication number: CN216617035U
Application number: CN202122825550.5U
Authority: CN
Inventors: 魏琦; 吕圣龙; 卢金珠
Original assignee: Beijing Xiuyu Technology And Culture Co ltd
Current assignee: Beijing Xiuyu Technology And Culture Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-05-27
Anticipated expiration: 2031-11-18

Abstract

The utility model discloses a jacking compensation device of a cantilever type lifting stage, which comprises two sets of jacking compensation mechanisms, wherein each set of jacking compensation mechanism comprises: the movable plate is used for being connected with one side of the lower end of the cantilever type lifting stage body; the fixed plate is used for being connected with a rigid chain of the cantilever type lifting stage driving device, is arranged in parallel with the movable plate and is positioned below the movable plate; a pair of guiding components which are respectively connected with the fixed plate and the movable plate and can make the movable plate and the fixed plate generate relative displacement under the action of external force. The jacking compensation device has the advantages of small occupied space, convenience in installation and maintenance, easiness in manufacturing and low cost, avoids the platform body from descending to damage a rigid chain, and improves the service life and the operation safety of the stage.

Description

Jacking compensation device of cantilever type lifting stage

Technical Field

The utility model relates to the technical field of stage machinery, in particular to a jacking compensation device of a cantilever type lifting stage.

Background

In recent decades, along with the increasing abundance of people's cultural life, the demand and the products of the performance market are also more and more diversified, and in order to improve the stage effect, the theater usually adopts the liftable stage to present a vivid and lively three-dimensional performance effect.

The existing liftable stage is usually applied to large theaters, the early-stage design of the theaters is relatively perfect, the civil engineering conditions are relatively ideal, and for example, the depth of a foundation pit, the embedding of an embedded part and the like have enough space for arranging a driving device, a guide mechanism and the like of the liftable stage. However, the places where the shows can be watched are not limited to the traditional large theaters, but can be built in other theaters, such as theaters built along with the development of the tourism industry. Usually, these theaters are small-scale stages with shallow foundation pits reconstructed or redesigned from some traditional stages or stages with limited space occupation, which are not ideal in civil construction conditions and have small space and can only provide support for one side of the elevating stage. If the scheme that the table body and the rigid chain of the driving device in the prior art are directly connected is still adopted for the unilateral support, the rigid chain can descend along with the table body once the table body descends in the process of stopping the table body, and if the descending amplitude of the rigid chain is too large, the table body can be pulled to descend, so that the rigid chain is damaged due to too large stress. Due to the needs of performances, the stage body of the stage can often bear huge loads of a forklift in addition to static loads and dynamic loads required to be borne by the existing theatre, and therefore, how to avoid the situations is a problem which needs to be solved urgently by a person skilled in the art.

Disclosure of Invention

The utility model aims to solve the problems in the prior art, and provides the jacking compensation device for the cantilever type lifting stage, which has the advantages of small occupied space, convenience in installation and maintenance, easiness in manufacturing and low cost, avoids the damage to a rigid chain caused by the descending of a stage body, and improves the service life and the operation safety of the stage.

In order to achieve the above object, the present invention provides a jacking compensation device for a cantilever type elevating stage, which comprises two sets of jacking compensation mechanisms, wherein each set of jacking compensation mechanism comprises: the movable plate is used for being connected with one side of the lower end of the cantilever type lifting stage body; the fixed plate is used for being connected with a rigid chain of the cantilever type lifting stage driving device, is arranged in parallel with the movable plate and is positioned below the movable plate; a pair of guiding components which are respectively connected with the fixed plate and the movable plate and can make the movable plate and the fixed plate generate relative displacement under the action of external force.

Preferably, the guide assembly comprises: the upper part of the guide shaft penetrates through the movable plate, and the lower part of the guide shaft penetrates through the fixed plate; the limiting plate is fixedly connected with the top end of the guide shaft; and the shaft positioning plate is fixedly connected with the bottom end of the guide shaft.

Furthermore, each set of jacking compensation mechanism also comprises one or more contact plates arranged between the movable plate and the fixed plate.

Further, the guide assembly further comprises a shaft sleeve installed in a guide through hole of the movable plate for the guide shaft to pass through.

Preferably, one or more pairs of through holes are symmetrically formed in the movable plate, and bolts for connecting the movable plate and the lower end of the cantilever type lifting stage platform body are correspondingly arranged in the through holes in a penetrating mode.

Preferably, one or more pairs of through holes are symmetrically formed in the fixed plate, and bolts for connecting the fixed plate and a rigid chain of the cantilever type lifting stage driving device are correspondingly arranged in the through holes in a penetrating manner.

Preferably, the contact plate is connected with the movable plate or the fixed plate by a screw.

Preferably, the connecting portion of the table body for connecting with the movable plate is provided with a receiving groove.

Compared with the prior art, the jacking compensation device of the cantilever type lifting stage has the advantages of small volume, small occupied space, convenience in installation and maintenance, easiness in manufacturing, low cost, capability of avoiding damage to a rigid chain due to the descending of the stage body and great improvement on the service life and the operation safety of the stage.

The present invention will be described in detail with reference to the accompanying drawings.

Drawings

Fig. 1a is a partial perspective view of a cantilevered stage with a jacking compensation device of the utility model;

FIG. 1b is a perspective view of the upper steel column part structure of the cantilevered elevating stage;

fig. 2a is a front view of a cantilevered stage with jacking compensation devices;

fig. 2b is a left side view of the cantilevered stage of fig. 2 a;

FIG. 3 is a schematic view of a perspective of the jacking compensating device mounted on the table body;

FIG. 4 is a schematic view of another perspective of the jacking compensating device mounted on the table body;

FIG. 5 is a perspective view of a jack-up compensator;

FIG. 6 is a front view of the jacking compensating device;

FIG. 7 is a top view of the jacking compensating device;

fig. 8 is a bottom view of the jack-up compensating device.

Detailed Description

Fig. 1a is a partial perspective view of a cantilevered type elevating stage having a jacking compensation device of the present invention, fig. 1b is a perspective view of a partial structure of an upper steel column of the elevating stage, fig. 2a and 2b are a front view and a left view of the cantilevered type elevating stage having the jacking compensation device of the present invention, fig. 3 and 4 are schematic views of different viewing angles of the connection of the jacking compensation device of the present invention and a stage body, and fig. 5 to 8 are different views of the jacking compensation device.

The cantilever type lifting stage is a structure which adopts a pair of tracks at one side to support a lifting stage body, the stage comprises a stage body 1 with a triangular-like longitudinal section, a supporting structure with a pair of tracks, a driving device 9, a locking device, a control system and the like, two rigid chains of the driving device 9 are respectively connected with two sides of the lower end of the stage body through two sets of jacking compensation mechanisms, the two rigid chains are driven by a motor to drive the stage body to lift up and down through the jacking compensation mechanisms, and when the stage body is parked in place, the parking position of the stage body is locked through the mutual abutting of a movable supporting leg mechanism 2 and a supporting seat 3 of the locking device.

In order to avoid damage caused by overlarge descending amplitude of a rigid chain due to the fact that the movable supporting leg mechanism 2 extends to abut against the supporting seat 3 to cause the platform to descend in the parking process of the platform, a jacking compensation device is arranged between the platform 1 and the rigid chain of the driving device 9 and provided with two sets of jacking compensation mechanisms 26, each set of jacking compensation mechanism is connected with one side of the lower end of the platform through a movable plate and connected with one rigid chain on the corresponding side of the driving device through a fixed plate, and the movable plate and the fixed plate can generate relative displacement in the vertical direction under the action of external force.

Specifically, the jacking compensation device for the cantilever type elevating stage of the present invention includes two sets of jacking compensation mechanisms 26, each set of jacking compensation mechanism 26 may adopt a structure as shown in fig. 5 to 8, including: a movable plate 263 for connecting with one side of the lower end of the cantilever type elevating stage body; a fixed plate 265 for connection with a rigid chain of the cantilevered stage-lifting drive, arranged parallel to and below the movable plate; a pair of guiding components which are respectively connected with the fixed plate and the movable plate and can make the movable plate and the fixed plate generate relative displacement under the action of external force. In addition, the jacking compensation mechanism further comprises one or more contact plates 264 (two contact plates in the figure) installed between the movable plate and the fixed plate, and the contact plates can be connected with the movable plate or the fixed plate through screws.

Wherein, each direction subassembly includes: a guide shaft 262 having an upper portion passing through the movable plate 263 and a lower portion passing through the fixed plate 265; a limit plate 261 fixedly connected with the top end of the guide shaft; and a shaft positioning plate 266 fixedly connected with the bottom end of the guide shaft. In addition, each guide assembly further includes a bushing 268 mounted in the guide through hole of the movable plate for the guide shaft to pass through.

In manufacturing, the movable plate 263 can be a flat hexagonal plate as shown in fig. 7, and a plate having another shape can be used. When the movable plate is a flat hexagon, one or more pairs of guide through holes (preferably, as shown in fig. 7, a pair of guide through holes) are symmetrically formed in two sides of the movable plate along the central axis direction in which the size of the movable plate is long, a shaft sleeve 268 is arranged in each guide through hole, each guide shaft penetrates through a corresponding shaft sleeve and can move up and down, and the shaft sleeve is a self-lubricating shaft sleeve. In order to prevent the shaft sleeve from slipping out of the guide through hole, the shaft sleeve can be stuck in the guide through hole, and the shaft sleeve can be fixed in the guide through hole through anaerobic adhesive. Of course, other ways of fixing the bushing in the guide through hole are also possible.

In addition, a plurality of pairs of connecting through holes are further formed between the pair of guiding through holes of the movable plate, the plurality of pairs of connecting through holes are symmetrically formed on two sides of the central axis with the shorter size of the movable plate, as shown in fig. 7, four pairs of connecting through holes are formed, wherein the size of the two pairs of connecting through holes located on the outermost side is slightly larger than that of the two pairs of connecting through holes located in the middle, and the four pairs of connecting through holes can also be the same in size. The movable plate is connected with the lower end of one side, corresponding to the cantilever type lifting stage platform body, of the platform body through the mode that the bolts correspondingly penetrate through the two pairs of connection through holes in the outermost side, correspondingly, the two sides, used for being connected with the movable plate, of the lower end of the platform body are respectively provided with a containing groove 1a (shown in figure 4), two corresponding through holes (through holes in the containing grooves are not shown in figure 4) are arranged in each containing groove, and four through holes in the two containing grooves correspond to the positions of the two pairs of connection through holes in the outermost side, formed in the movable plate.

As with the movable plate, the fixed plate 265 may be a flat hexagonal plate as shown in fig. 8, or may be a plate with other shape, the external dimension of the fixed plate may be the same as that of the movable plate, and the fixed plate is also provided with guiding through holes and connecting through holes, which may correspond to the guiding through holes and the connecting through holes on the movable plate in position and number, or the connecting through holes may not correspond to the guiding through holes and the connecting through holes on the movable plate in position and number. The upper end of the guide shaft penetrates through the guide through hole of the movable plate, and the lower end of the guide shaft penetrates through the guide through hole of the fixed plate. Bolts are correspondingly arranged in the two pairs of connecting through holes on the outer side in a penetrating manner so as to connect the fixing plate and the rigid chain together.

Wherein, the top of the guide shaft is exposed out of the movable plate, and a limiting plate 261 is fixed at the top through a bolt 269, the limiting plate is circular, and the outer diameter is larger than the diameter of the guide through hole. The bottom end of the guide shaft is flush with the fixed plate, and a shaft positioning plate 267 is arranged at the bottom end of the guide shaft and fixedly connected with the guide shaft through a plurality of bolts. In addition, the shaft positioning plate is connected with the fixing plate by a plurality of bolts, and correspondingly, as shown in fig. 8, a plurality of connecting holes (four in the figure) are annularly arranged on the periphery of each guide through hole of the fixing plate.

As the movable plate can move up and down along the guide shaft relative to the fixed plate, in order to avoid large rigid impact force on the fixed plate caused by the movable plate impacting the fixed plate in the moving process, a contact plate 264 is arranged between the fixed plate and the movable plate, as shown in fig. 6, two contact plates are arranged between the fixed plate and the movable plate, the contact plate positioned above is connected with the movable plate, and the contact plate positioned below is connected with the fixed plate. When in connection, the upper contact plate and the movable plate can be connected together in a mode that two pairs of countersunk screws penetrate through the upper contact plate and two pairs of connecting through holes in the middle of the movable plate, and similarly, the lower contact plate and the fixed plate are connected together in a mode that two pairs of countersunk screws penetrate through the lower contact plate and two pairs of connecting through holes in the middle of the fixed plate.

In addition to the bolt connection method, the connection method between the plates and the corresponding component may be determined according to actual needs, and of course, the number and positions of the bolts used for the bolt connection may be adjusted according to needs.

In conclusion, each jacking compensation mechanism of the jacking compensation device for the cantilever type lifting stage is simple and compact in structure, small in size, small in occupied space, convenient to install and maintain, easy to manufacture and low in cost, and the stage body is connected with the rigid chain through the two sets of jacking compensation mechanisms, so that the rigid chain can be prevented from being damaged due to the fact that the stage body descends, and the service life and the operation safety of the stage are greatly improved.

Although the present invention has been described in detail, the present invention is not limited thereto, and those skilled in the art can modify the principle of the present invention, and thus, various modifications made in accordance with the principle of the present invention should be understood to fall within the scope of the present invention.

Claims

1. The utility model provides a jacking compensation arrangement of cantilever type lift stage which characterized in that, includes two sets of jacking compensation mechanism, and every set of jacking compensation mechanism includes:

the movable plate is used for being connected with one side of the lower end of the cantilever type lifting stage body;

the fixed plate is used for being connected with a rigid chain of the cantilever type lifting stage driving device, is arranged in parallel with the movable plate and is positioned below the movable plate;

a pair of guiding components which are respectively connected with the fixed plate and the movable plate and can make the movable plate and the fixed plate generate relative displacement under the action of external force.

2. The jacking compensation apparatus of claim 1, wherein the guide assembly comprises:

the upper part of the guide shaft penetrates through the movable plate, and the lower part of the guide shaft penetrates through the fixed plate;

the limiting plate is fixedly connected with the top end of the guide shaft;

and the shaft positioning plate is fixedly connected with the bottom end of the guide shaft.

3. The heave compensation apparatus of claim 1, wherein each set of heave compensation mechanisms further comprises one or more contact plates mounted between the moving plate and the fixed plate.

4. The jacking compensation device of claim 2, wherein the guide assembly further comprises a bushing mounted in a guide through hole of the movable plate for passing a guide shaft therethrough.

5. The jacking compensating device of any one of claims 1 to 4, wherein a connecting portion of the table body for connecting with the movable plate is provided with a receiving groove.