CN216190186U

CN216190186U - Stage hoisting accessory

Info

Publication number: CN216190186U
Application number: CN202122334517.2U
Authority: CN
Inventors: 关开伟; 刘海南; 辛亮智
Original assignee: Guangzhou Lianchuang Stage Equipment Co ltd
Current assignee: Guangzhou Lianchuang Stage Equipment Co ltd
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2022-04-05
Anticipated expiration: 2031-09-26

Abstract

The utility model discloses a stage hoisting device, which comprises a hoisting point pulley mechanism, a rope erected on the hoisting point pulley mechanism, and a winch connected with one end of the rope, wherein the hoisting point pulley mechanism is arranged on the hoisting point pulley mechanism; the hoisting point pulley mechanism comprises: a support frame; the pulley body is rotatably arranged on the support frame through a rotating shaft, a groove for clamping a rope is concavely arranged on the outer circumferential surface of the pulley body, and a plurality of bulges are arranged in the groove along the circumferential direction; the outer circumferential surface of the wheel body is also provided with a plurality of clamping grooves which are arranged at equal intervals along the circumferential direction; the fixing component is driven by the driving mechanism and arranged on the supporting frame in a lifting manner, the fixing component comprises an arc-shaped pressing plate, and the bottom of the arc-shaped pressing plate is provided with a propping block which is inserted into the groove to press the rope tightly; the bottom of the arc-shaped pressing plate is also provided with a clamping strip which is clamped into the clamping groove. The wheel body and the rope are fixed through one driving mechanism, the structure is simplified, the maintenance is convenient, and the production cost is reduced.

Description

Stage hoisting accessory

Technical Field

The utility model relates to the technical field of stage hoisting equipment, in particular to a stage hoisting device.

Background

In the prior art, a stage is a space provided in a theater for an actor to perform, which can concentrate the audience's attention on the actor's performance and obtain a desired viewing effect. The stage is usually composed of one or more platforms, some of which can be elevated. The stage types include a picture frame type stage, an extension type stage, a ring type stage and a rotary type stage. In order to improve the performance effect, hoisting equipment is arranged in the existing stage, usually a rope is driven by a winch and bypasses a hoisting point pulley so as to hoist a heavy object; as a heavy stage hoisting point pulley of publication No. CN212425245U, it is including setting up the wheel body on the support frame, wear to be equipped with a pivot simultaneously on two curb plates of support frame edge vertical direction, pivot fixed connection is on the curb plate, the wheel body rotates to be connected in the pivot between two curb plates, the support frame rotates between roof and wheel body and is connected with the lead screw, be equipped with the motor that output and lead screw are connected on the roof, the one end threaded connection that the motor was kept away from to the lead screw has the sleeve, the one end that the motor was kept away from to the sleeve is equipped with and supports tight piece with wheel body matched with. The hoisting point pulley can realize self-locking of the rope and the pulley body.

However, the hoisting point pulley in the hoisting device has some disadvantages, the self-locking of the rope is realized through the motor, and in addition, the self-locking is realized through the action of the electromagnet on the side surface of the pulley body, so that a plurality of control mechanisms are provided, and the structure is complex; in addition, the motor drives the screw rod to rotate, so that the sleeve is driven to descend, the lifting speed of the sleeve is low, and the rope is not convenient to fix or loosen in real time.

SUMMERY OF THE UTILITY MODEL

The present invention provides a stage lifting device, which can solve at least one of the above problems to some extent.

The technical scheme of the utility model is realized as follows:

a stage hoisting device comprises a hoisting point pulley mechanism, a rope erected on the hoisting point pulley mechanism, and a winch connected with one end of the rope; the hoisting point pulley mechanism comprises:

a support frame;

the pulley body is rotatably arranged on the support frame through a rotating shaft, a groove for clamping a rope is concavely arranged on the outer circumferential surface of the pulley body, and a plurality of bulges are arranged in the groove along the circumferential direction; the outer circumferential surface of the wheel body is also provided with a plurality of clamping grooves which are arranged at equal intervals along the circumferential direction;

the fixing component is driven by the driving mechanism and arranged on the supporting frame in a lifting manner, the fixing component comprises an arc-shaped pressing plate, and the bottom of the arc-shaped pressing plate is provided with a propping block which is inserted into the groove to press the rope tightly; the bottom of the arc-shaped pressing plate is also provided with a clamping strip which is clamped into the clamping groove.

As a further alternative of the stage lifting device, a sleeve is fixedly arranged on the fixing member; the driving mechanism is an air cylinder/electric cylinder arranged on the supporting frame, a piston rod is arranged on the air cylinder/electric cylinder, and the piston rod is sleeved in the sleeve; driving the fixing member to move downward by the piston rod; the supporting frame is provided with a first spring used for driving the fixing component to move upwards.

As a further alternative of the stage hoisting device, the support frame comprises a top plate and two side plates arranged below the top plate; the side plate is provided with a guide groove, and a guide rod is vertically arranged in the guide groove; the fixed component also comprises a cross rod fixedly connected with the sleeve, and two ends of the cross rod are respectively sleeved on the guide rod; the first spring is sleeved on the guide rod, one end of the first spring abuts against the bottom of the guide groove, and the other end of the first spring abuts against the cross rod.

As a further alternative of the stage hoisting device, the support frame is arranged below the hanging beam, the support frame is fixedly provided with a limiting rod, the limiting rod is slidably sleeved on the hanging beam, the limiting rod is provided with a limiting ring, the limiting rod is sleeved with a second spring, one end of the second spring is abutted against the hanging beam, and the other end of the second spring is abutted against the bottom of the limiting ring.

As a further alternative of the stage lifting device, the support frame is further provided with a guide pillar, the guide pillar is slidably sleeved on the hanging beam, and the guide pillar is provided with a limit block.

As a further alternative of the stage lifting device, the limiting rod is provided with external threads, and the limiting ring is in threaded connection with the limiting rod.

The utility model has the following beneficial effects: the driving mechanism drives the fixing component to descend, and after the fixing component descends, the arc-shaped pressing plate is clamped into the clamping groove through the clamping strip to fix the wheel body; in addition, the abutting block below the arc-shaped pressing plate is inserted into the groove to press the rope tightly, so that the rope is fixed; therefore, the wheel body and the rope are fixed through one driving mechanism, the structure is simplified, the maintenance is convenient, and the production cost is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a stage lifting device according to the present invention;

fig. 2 is a schematic cross-sectional view of a stage lifting device according to the present invention;

fig. 3 is a schematic view of the arc-shaped pressing plate being matched with the outer circumferential surface of the wheel body.

In the figure: 100. a rope; 1. a support frame; 11. a top plate; 12. a side plate; 121. a guide groove; 122. a guide bar; 13. a limiting rod; 131. a limiting ring; 132. a second spring; 14. a guide post; 141. a limiting block; 2. a wheel body; 21. a rotating shaft; 22. a groove; 23. a protrusion; 24. a card slot; 3. a fixing member; 31. an arc-shaped pressing plate; 311. clamping the strip; 32. a propping block; 33. a sleeve; 34. a cross bar; 4. a drive mechanism; 41. a cylinder/electric cylinder; 42. a piston rod; 43. a first spring; 5. and (4) hanging the beam.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may mean that the first feature is directly above or obliquely above the second feature, or that only the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 to 3, there is shown a stage lifting device including a lifting point pulley mechanism, a rope 100 erected on the lifting point pulley mechanism, and a hoist connected to one end of the rope 100; the hoisting point pulley mechanism comprises: a support frame 1; the pulley body 2 is rotatably arranged on the support frame 1 through a rotating shaft 21, a groove 22 for clamping the rope 100 is concavely arranged on the outer circumferential surface of the pulley body 2, and a plurality of protrusions 23 are arranged in the groove 22 along the circumferential direction; the outer circumferential surface of the wheel body 2 is also provided with a plurality of clamping grooves 24 which are arranged at equal intervals along the circumferential direction; the fixing component 3 is driven by the driving mechanism 4 to be arranged on the supporting frame 1 in a lifting manner, the fixing component 3 comprises an arc-shaped pressing plate 31, and the bottom of the arc-shaped pressing plate 31 is provided with a tight abutting block 32 which is inserted into the groove 22 to press the rope 100; the bottom of the arc-shaped pressing plate 31 is further provided with a clamping strip 311 which is clamped into the clamping groove 24.

In other words, the driving mechanism 4 drives the fixing member 3 to descend, and after the fixing member 3 descends, the arc-shaped pressing plate 31 is clamped into the clamping groove 24 through the clamping strip 311, so that the wheel body 2 is fixed; in addition, the abutting block 32 below the arc-shaped pressing plate 31 is inserted into the groove 22 to press the rope 100, so that the rope 100 is fixed; thus, the wheel body 2 and the rope 100 are fixed by one driving mechanism 4, the structure is simplified, the maintenance is convenient, and the production cost is reduced. Wherein, the driving mechanism 4 can refer to a heavy stage hoisting point pulley with the publication number of CN 212425245U.

In some specific embodiments, in order to improve the instantaneity of the fixed member 3 in lifting, referring to fig. 1 and 2, a sleeve 33 is fixed on the fixed member 3; the driving mechanism 4 is an air cylinder/electric cylinder 41 arranged on the support frame 1, a piston rod 42 is arranged on the air cylinder/electric cylinder 41, and the piston rod 42 is sleeved in the sleeve 33; the fixed member 3 is driven to move downwards by the piston rod 42; the supporting frame 1 is provided with a first spring 43 for driving the fixing member 3 to move upwards. Specifically, the support frame 1 comprises a top plate 11 and two side plates 12 arranged below the top plate 11; a guide groove 121 is formed in the side plate 12, and a guide rod 122 is vertically arranged in the guide groove 121; the fixing member 3 further comprises a cross bar 34 fixedly connected with the sleeve 33, and two ends of the cross bar 34 are respectively sleeved on the guide rods 122; the first spring 43 is sleeved on the guide rod 122, one end of the first spring 43 abuts against the bottom of the guide groove 121, and the other end of the first spring 43 abuts against the cross rod 34.

Specifically, when the cylinder/electric cylinder 41 drives the piston rod 42 to descend, the end of the piston rod 42 abuts against the arc-shaped pressing plate 31 to descend the arc-shaped pressing plate 31, so that the descending speed is high and the instantaneity is high; when the cylinder/electric cylinder 41 drives the piston rod 42 to ascend, the end of the piston rod 42 is separated from the arc-shaped pressing plate 31, and the cross rod 34 is jacked up under the action of the first spring 43, so that the arc-shaped pressing plate 31 ascends.

In some specific embodiments, in order to enable the support frame 1 to have a certain vibration damping performance, referring to fig. 1, the support frame 1 is disposed below the hanging beam 5, a limiting rod 13 is fixedly disposed on the support frame 1, the limiting rod 13 is slidably sleeved on the hanging beam 5, a limiting ring 131 is disposed on the limiting rod 13, a second spring 132 is sleeved on the limiting rod 13, one end of the second spring 132 abuts against the hanging beam 5, and the other end abuts against the bottom of the limiting ring 131. In order to adjust the elastic force of the second spring 132, an external thread is provided on the limiting rod 13, and the limiting ring 131 is in threaded connection with the limiting rod 13; in this way, it is possible to facilitate adjustment of the position of the retainer ring 131 on the retainer rod 13, thereby adjusting the elastic force of the second spring 132; in addition, in order to improve the stability of the support frame 1 and the hanging beam 5 during buffering, a guide pillar 14 is further arranged on the support frame 1, the guide pillar 14 is slidably sleeved on the hanging beam 5, and a limiting block 141 is arranged on the guide pillar 14; therefore, the support frame 1 can only lift and cannot rotate around the limiting rod 13, and the heavy object hung by the rope 100 is prevented from shaking left and right.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A stage hoisting device comprises a hoisting point pulley mechanism, a rope erected on the hoisting point pulley mechanism, and a winch connected with one end of the rope; it is characterized in that the hoisting point pulley mechanism comprises: a support frame;

2. A stage lifting device according to claim 1, wherein the fixed member is provided with a sleeve; the driving mechanism is an air cylinder/electric cylinder arranged on the supporting frame, a piston rod is arranged on the air cylinder/electric cylinder, and the piston rod is sleeved in the sleeve; driving the fixing member to move downward by the piston rod; the supporting frame is provided with a first spring used for driving the fixing component to move upwards.

3. A stage lifting device according to claim 2, wherein the supporting frame comprises a top plate and two side plates arranged below the top plate; the side plate is provided with a guide groove, and a guide rod is vertically arranged in the guide groove; the fixed component also comprises a cross rod fixedly connected with the sleeve, and two ends of the cross rod are respectively sleeved on the guide rod; the first spring is sleeved on the guide rod, one end of the first spring abuts against the bottom of the guide groove, and the other end of the first spring abuts against the cross rod.

4. A stage lifting device according to claim 1, wherein the support frame is disposed below the hanging beam, a limiting rod is fixedly disposed on the support frame, the limiting rod is slidably sleeved on the hanging beam, a limiting ring is disposed on the limiting rod, a second spring is sleeved on the limiting rod, one end of the second spring abuts against the hanging beam, and the other end of the second spring abuts against the bottom of the limiting ring.

5. A stage lifting device according to claim 4, wherein the support frame is further provided with a guide post, the guide post is slidably sleeved on the hanging beam, and the guide post is provided with a limiting block.

6. A stage lifting device according to claim 4, wherein the stop rod is provided with an external thread, and the stop ring is in threaded connection with the stop rod.