CN211097542U

CN211097542U - Wind-resistant protection device suitable for whole process of lifting flexible net curtain

Info

Publication number: CN211097542U
Application number: CN201921922002.0U
Authority: CN
Inventors: 杨元永
Original assignee: Beijing Bette Shengdi Technology Development Co ltd
Current assignee: Beijing Bette Shengdi Technology Development Co ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-07-28
Anticipated expiration: 2029-11-08

Abstract

A wind-resistant protection device suitable for the whole process of lifting of a flexible net curtain is characterized in that the upper end of the flexible net curtain is fixedly arranged on a lifting cross beam, one end of a protection cable is connected with the lifting cross beam, the other end of the protection cable is wound on a winding drum through a steering pulley, and a motor drives a coupler to rotate so as to drive a speed reducer and the winding drum to rotate; the flexible screen is arranged on the upper layer of the screen box body, and the steering pulley, the winding drum, the speed reducer, the coupler and the motor are arranged on the lower layer of the screen box body; the sliding ring is fixed on the flexible net curtain and sleeved on the protective cable; the lifting beam is provided with lifting power by external equipment. The utility model ensures the wind resistance effect of the flexible net curtain when in use, and can ensure the drift amount of the flexible net curtain in the horizontal direction within a controllable range through presetting and accurately controlling the tension of the protective cable; and device simple structure, and be convenient for transport, the working procedure is simple reliable, has saved the waste of manpower resources promptly, has effectively guaranteed flexible net curtain stability in elevation and security again.

Description

Wind-resistant protection device suitable for whole process of lifting flexible net curtain

Technical Field

The utility model relates to an application equipment field especially relates to a be fit for flexible net curtain lift overall process anti-wind protection device.

Background

In outdoor performance, flexible screen performance is widely used. The flexible screen is arranged on the vacant space of the performance site, and the screen in the screen box body arranged on the ground is lifted to the required height from the ground through external equipment such as a crane and the like to form a specific medium picture for performing performances such as video programs or fireworks and the like.

There are 2 kinds of modes in the drift that current flexible net curtain lift process resisted wind load and produced: firstly, a tensioned wind-resistant cable is preset before the flexible net curtain is lifted, and then the flexible net curtain is lifted along the wind-resistant cable through external equipment; and in the second mode, when the flexible net curtain is lifted, the stay cables are arranged, and the flexible net curtain is tensioned manually by a plurality of people in a cooperative manner.

However, in the process of implementing the present invention, the inventor finds that the prior art has at least the following problems: the preparation of the performance time requires less time, is safe and reliable, and has the disadvantages of complicated process, long preparation period and relatively high cost due to the adoption of the pre-tensioned wind-resistant cable; the work of adopting the flexible net curtain of artifical tensioning needs more staff cooperation, and has certain operational difficulty and risk.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a be fit for flexible net curtain lift overall process anti-wind protection device. Thereby solving the aforementioned problems in the prior art.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

a wind-resistant protection device suitable for the whole process of lifting a flexible net curtain comprises a lifting cross beam, the flexible net curtain, a protection rope, a sliding ring, a steering pulley, a net curtain box body, a winding drum, a speed reducer, a coupling and a motor; the upper end of the flexible net curtain is fixedly arranged on the lifting cross beam, one end of the protection cable is connected with the lifting cross beam, one end of the protection cable is wound on the winding drum through the steering pulley, the winding drum is synchronously connected with the speed reducer, the speed reducer is connected to the motor through the coupler, and the motor drives the coupler to rotate so as to drive the speed reducer and the winding drum to rotate; the net curtain box body comprises an upper layer and a lower layer, the flexible net curtain is arranged on the upper layer, and the steering pulley, the winding drum, the speed reducer, the coupler and the motor are arranged on the lower layer; the sliding ring is fixed on the flexible net curtain and sleeved on the protective cable; the lifting beam is provided with lifting power by external equipment.

Preferably, when the flexible net curtain is stored, the net curtain is orderly stacked on the upper layer of the net curtain box body.

Preferably, the slip rings are fixed on the flexible screen one at a time at fixed intervals and are arranged in one or more vertical rows.

Preferably, the coupling is a hysteresis coupling.

Preferably, the protective cable, the steering pulley, the winding drum, the speed reducer, the coupler and the motor form a set of tension equipment together.

Preferably, each set of said pulling device comprises two of said diverting pulleys.

The utility model has the advantages that: suitable flexible net curtain lift overall process anti-wind protection device, can be through the cooperation of slip ring and protection cable to and many sets of cooperation are used, guaranteed the anti-wind effect of flexible net curtain when using, the accessible is preset and the drift volume of accurate control protection cable tension assurance flexible net curtain at the horizontal direction is at steerable within range. And device simple structure, and be convenient for transport, the working procedure is simple reliable, has saved the waste of manpower resources promptly, has effectively guaranteed flexible net curtain stability in elevation and security again.

Drawings

FIG. 1 is a front view of the wind-resistant protection device in the whole process of lifting and lowering the flexible net curtain;

FIG. 2 is a view in the direction of P of FIG. 1;

FIG. 3 is a view from A-A of FIG. 1;

in the figure: the device comprises a lifting cross beam 1, a flexible net curtain 2, a protection rope 3, a sliding ring 4, a second diverting pulley 5, a first diverting pulley 6, a net curtain box 7, a winding drum 8, a speed reducer 9, a coupler 10 and a motor 11.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only.

A wind-resistant protection device suitable for the whole process of lifting a flexible net curtain is shown in figure 1 and comprises a lifting beam 1, a flexible net curtain 2, a protection rope 3, a sliding ring 4, a steering pulley, a net curtain box body 7, a winding drum 8, a speed reducer 9, a coupling 10 and a motor 11; the upper end of the flexible net curtain 2 is fixedly installed on the lifting beam 1, one end of the protective cable 3 is connected with the lifting beam 1, and the other end of the protective cable is wound on the winding drum 8 through the steering pulley, the winding drum 8 is synchronously connected with the speed reducer 9, the coupler 10 is connected with the speed reducer 9 and the motor 11, and the motor 11 drives the coupler 10 to rotate so as to drive the speed reducer 9 and the winding drum 8 to rotate; the screen box body 7 comprises an upper layer and a lower layer, the flexible screen 2 is arranged on the upper layer, and the steering pulley, the winding drum 8, the speed reducer 9, the coupler 10 and the motor 11 are arranged on the lower layer; the sliding ring 4 is fixed on the flexible net curtain 2 and sleeved on the protective cable 3; the lifting beam 1 is provided with lifting power by external equipment.

The working state of the flexible net curtain 2 is shown in figure 2, the flexible net curtain 2 is stacked inside the upper layer of the net curtain box body 7, and is driven by the lifting cross beam 1 to stretch during working, and slides along the protection cable 3 under the action of the sliding ring 4.

Flexible net curtain lift overall process anti-wind protection device, all place before the use in inside 7 of net curtain box, its theory of use is: the screen box body 7 is placed at a position required for performance, when the screen box body is operated, the motor 11 is connected with a power supply, the motor 11 drives a rotating shaft to rotate at a uniform speed in a unidirectional mode, constant torque is provided for the speed reducer 9 through the coupler 10, the speed reducer 9 drives the winding drum 8 to provide constant pre-tensioning force for the protection cable 3, the external equipment provides tension for the lifting beam 1 and transmits the tension to the protection cable 3, when the tension transmitted to the protection cable 3 by the external equipment is larger than the constant pre-tensioning force, the lifting beam 1 drives the protection cable 3 and the flexible screen 2 to stretch, and the flexible screen 2 slides and stretches along the protection cable 3 under the action of the sliding ring 4; when the pulling force transmitted to the protective cable 3 by the external equipment is equal to the constant pre-pulling force, the flexible screen is stable at a stretching position; when the pulling force transmitted to the protection cable 3 by the external device is smaller than the constant pretensioning force, the protection cable 3 is driven by the pretensioning force to be furled back and wound on the winding drum 8, and the lifting beam 1 and the flexible screen 2 are driven to be furled back to the screen box 7.

The protection cable 3 the diverting pulley the reel 8 the reduction gear 9 the shaft coupling 10 with motor 11 is a whole set of pulling force equipment, flexible net curtain lift overall process anti-wind protection device can dispose many sets of above-mentioned equipment according to the demand, many motor 11 connects in parallel, can open simultaneously also can open in proper order, and after many motors were all started, external equipment began to provide the pulling force, flexible net curtain 2 began to move. The coupling 10 is a hysteresis coupling.

Flexible net curtain lift overall process anti-wind protection device is equipped with two diverting pulley is shown by figure 2 and figure 3, first diverting pulley 6 transversely install in 7 lower floor's of net curtain box, will protection cable 3 converts the horizontal direction into by tensile direction, second diverting pulley 5 vertical install in 7 lower floor's of net curtain box can with protection cable 3 guides to different positions on, when using many sets during the pulling force equipment, convenient the reel 8 the reduction gear 9 the shaft coupling 10 with the installation is arranged to motor 11.

Through adopting the utility model discloses an above-mentioned technical scheme has obtained following profitable effect:

suitable flexible net curtain lift overall process anti-wind protection device, can be through the cooperation of slip ring and protection cable to and many sets of cooperation are used, guaranteed the anti-wind effect of flexible net curtain when using, the accessible is preset and the drift volume of accurate control protection cable tension assurance flexible net curtain at the horizontal direction is at steerable within range. And device simple structure, and be convenient for transport, the working procedure is simple reliable, has saved the waste of manpower resources promptly, has effectively guaranteed flexible net curtain stability in elevation and security again.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be viewed as the protection scope of the present invention.

Claims

1. A wind-resistant protection device suitable for the whole process of lifting a flexible net curtain is characterized by comprising a lifting cross beam, the flexible net curtain, a protection rope, a sliding ring, a steering pulley, a net curtain box body, a winding drum, a speed reducer, a coupler and a motor; the upper end of the flexible net curtain is fixedly arranged on the lifting cross beam, one end of the protection cable is connected with the lifting cross beam, one end of the protection cable is wound on the winding drum through the steering pulley, the winding drum is synchronously connected with the speed reducer, the speed reducer is connected to the motor through the coupler, and the motor drives the coupler to rotate so as to drive the speed reducer and the winding drum to rotate; the net curtain box body comprises an upper layer and a lower layer, the flexible net curtain is arranged on the upper layer, and the steering pulley, the winding drum, the speed reducer, the coupler and the motor are arranged on the lower layer; the sliding ring is fixed on the flexible net curtain and sleeved on the protective cable; the lifting beam is provided with lifting power by external equipment.

2. The wind-resistant protection device suitable for the whole process of lifting and lowering the flexible screen as claimed in claim 1, wherein the flexible screen is stored and stacked on the upper layer of the screen box body in order.

3. The wind-resistant protection device for the whole process of lifting and falling of the flexible screen as claimed in claim 1, wherein the sliding ring is fixed on the flexible screen one at a fixed distance and is one or more than one vertical row.

4. The wind-resistant protection device suitable for the whole process of lifting and lowering the flexible screen as claimed in claim 1, wherein the coupling is a hysteresis coupling.

5. The wind-resistant protection device suitable for the whole process of flexible screen lifting according to claim 1, wherein the protection cable, the diverting pulley, the winding drum, the speed reducer, the coupling and the motor together form a set of tension equipment.

6. The full process wind-resistant protection device for the lifting of a flexible screen as claimed in claim 5, wherein each set of said tension equipment comprises two of said diverting pulleys.