CN215916272U

CN215916272U - Height-adjustable movable smoke-blocking vertical wall device

Info

Publication number: CN215916272U
Application number: CN202122081023.8U
Authority: CN
Inventors: 孙璐; 张清甫; 王文才; 张珂; 石岩; 温智理; 马新发; 李晓静; 郭洪娜; 张容跃; 张士寅
Original assignee: Architectural Design And Research Institute Of Henan Province Co ltd
Current assignee: Architectural Design And Research Institute Of Henan Province Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-03-01
Anticipated expiration: 2031-08-31

Abstract

A height-adjustable movable smoke barrier hanging wall device is characterized in that one end of smoke barrier hanging cloth is fixed on a rotating shaft, the other end of the smoke barrier hanging cloth is a free end and can be lifted along with the rotation of the rotating shaft, the rotating shaft is fixed below a suspended ceiling through a bearing, one end of the rotating shaft is connected with a gear transmission mechanism and is driven by the gear transmission mechanism to rotate; the power source of the gear transmission mechanism comprises an electromagnet and a compression spring which are fixed on the wall, one end of the compression spring is fixed on the electromagnet, the other end of the compression spring is connected with the gear transmission mechanism, a metal box body is arranged outside the compression spring, one end of the metal box body, which is far away from the electromagnet, is fixed on the gear transmission mechanism, and the electromagnet is electrified to adsorb the metal box body, so that the compression spring is fixed in the metal box body. The smoke barrier vertical cloth lifting mechanism is independent of motor drive, adopts the elastic potential energy of the spring and the gear transmission mechanism to realize the lifting, the descending and the height adjustment of the smoke barrier vertical cloth, has simple structure and low manufacturing and maintenance cost, and improves the safety when a fire disaster happens.

Description

Height-adjustable movable smoke-blocking vertical wall device

Technical Field

The utility model belongs to the technical field of fire-fighting facilities, and particularly relates to a height-adjustable movable smoke-blocking vertical wall device.

Background

The smoke blocking vertical wall blocks the smoke from transversely diffusing under a building ceiling, a cross beam or a suspended ceiling during fire, maintains certain thickness of the smoke storage bin, and is favorable for the smoke to be discharged through smoke discharging facilities in the area in time. The technical standard of building smoke prevention and discharge systems (GB 51251-2017) No. 4.6.2 has the requirement on the minimum thickness of a smoke storage bin, meanwhile, the height from the bottom of the smoke storage bin to the ground is greater than the minimum clear height required by safe evacuation, and the calculation according to the 4.9.4 minimum clear height is influenced by the building clear height of a smoke discharge space, so that the thickness of the smoke storage bin is related to the building clear height of the smoke discharge space; 4.16.14, the calculation of the maximum smoke discharge amount of a single smoke discharge port is also influenced by the thickness of the smoke storage bin. Therefore, under different clear heights, specific design clear heights and according to the checking calculation of the maximum smoke discharge amount of a single smoke discharge port, the thicknesses of the smoke storage bins are different, and the descending smoke blocking vertical wall can be adjusted in height to meet the standard requirement.

The smoke-blocking vertical wall is divided into a fixed smoke-blocking vertical wall and a movable smoke-blocking vertical wall. The fixed smoke-blocking vertical wall is generally not less than 500mm high and is arranged below a ceiling, a cross beam or a suspended ceiling. Because fixed cigarette of keeping off hangs down the wall for fixed knot constructs and more height, influences the clear height of building and impression, especially to the higher lower building of partial layer height, if set up and use fixed cigarette of keeping off and hang down the wall, can influence even personnel and pass through from its below. Movable fender cigarette hangs down the wall and can solve fixed fender cigarette and hang down the wall and influence the clear height of building, pleasing to the eye scheduling problem, nevertheless in order to make among the prior art to hang down the wall and can move about from top to bottom, keep off the cigarette and hang down the wall often the structure complicacy, can be furnished with devices such as motor even, lead to making the installation cost high, the fault rate is high, the shortcoming of difficult maintenance, like the utility model patent that application number is 201620012737.X discloses a lift fender cigarette hangs down the wall, by controller signaling control drive arrangement to make the spool rotatory, it descends or rises to drive fender cigarette and hang down the wall. Still one kind of movable fender cigarette hangs down the wall, hang down the wall for the folded sheet formula, even if hang down the wall when for packing up the state, can occupy more furred ceiling horizontal space, not only influence pleasing to the eye but also can hinder the installation of other inside pipelines of furred ceiling, the maintenance, utility model patent as application number 201920865044.9 discloses a fold-over formula fender cigarette hangs down the wall device, should keep off the cigarette and hang down the wall must paste at ordinary times and apply in the furred ceiling, parallel with the furred ceiling, it is fixed by electromagnetic release, signal control electromagnetic release loses magnetism during the conflagration, keep off the cigarette and hang down the wall and lean on gravity whereabouts to the position with furred ceiling vertically. The utility model also discloses a movable smoke-blocking vertical wall, for example, the utility model patent with the application number of 201710131526.7 discloses a movable smoke-blocking vertical wall device, the smoke-blocking vertical wall device is usually folded between an upper plate and a lower plate and is fixed by magnetic attraction or a traction rope, the smoke-blocking vertical wall falls by electromagnet release or traction rope fusing in case of fire, although the mechanism of the smoke-blocking vertical wall is simple, the height of the falling vertical wall cannot be adjusted, the falling speed cannot be controlled, shaking is easy to occur, and escape personnel are endangered, therefore, based on the defects of the smoke-blocking vertical wall in the prior art, a more optimized improved design is needed.

SUMMERY OF THE UTILITY MODEL

In view of the above analysis, the present invention aims to provide a height-adjustable movable smoke-blocking vertical wall device, so as to solve the problems of large occupied space, unattractive appearance and influence on the use net height of the fixed smoke-blocking vertical wall in the prior art; the existing movable smoke blocking vertical wall motor has the problems of complex driving structure, easy damage or incapability of controlling and adjusting the height in a magnetic type mode and the like.

The utility model adopts the following technical scheme to realize the purpose: a height-adjustable movable smoke-blocking vertical wall device comprises smoke-blocking vertical cloth, wherein one end of the smoke-blocking vertical cloth is fixed on a rotating shaft, the other end of the smoke-blocking vertical cloth is a free end and can be lifted along with the rotation of the rotating shaft, the rotating shaft is fixed under a suspended ceiling through a bearing, and one end of the rotating shaft is connected with a gear transmission mechanism and is driven by the gear transmission mechanism to rotate; the power source of the gear transmission mechanism comprises an electromagnet and a compression spring which are fixed on the wall, one end of the compression spring is fixed on the electromagnet, the other end of the compression spring is connected with the gear transmission mechanism, a metal box body is arranged outside the compression spring, one end of the metal box body, which is far away from the electromagnet, is fixed on the gear transmission mechanism, and the electromagnet is electrified to adsorb the metal box body, so that the compression spring is fixed in the metal box body.

The gear transmission mechanism comprises a rack, a gear I, a gear II and a gear III, wherein the rack is located below the gear I and is meshed with the gear I, the gear I and the gear II are coaxial, the radius of the gear I is smaller than that of the gear II, the gear II is vertically meshed with the gear III, and the gear III is sleeved at one end of the rotating shaft.

The outer parts of the electromagnet, the compression spring and the gear transmission mechanism are provided with a shell, and the inner surface of the shell is provided with a limiting slide block for blocking the metal box body.

The electromagnet is connected with a controller, the controller is connected with an automatic fire alarm system and/or a manual button, and the manual button is arranged on the wall below the smoke barrier vertical wall.

The smoke blocking vertical cloth is made of flexible non-combustible materials and has no magnetism.

Compared with the prior art, the smoke barrier cloth is not driven by a motor, the smoke barrier cloth can ascend, descend and adjust the height by adopting the elastic potential energy of the spring and the gear transmission mechanism, the structure is simple, the manufacturing and maintenance cost is low, and the safety in fire disaster is improved. Adopt the pivot to accomodate and keep off the cigarette plumbing cloth, do not occupy the building function space under the furred ceiling, do not influence installation, the maintenance of other pipelines in the furred ceiling. The gear transmission mechanism is adopted to realize the setting and control of the descending height of the smoke-blocking cloth and meet the requirements on the height of the smoke storage bin under different net heights. The electromagnet which loses magnetism slowly is adopted to control the release rate of the elasticity potential of the spring, the descending speed of the smoke blocking vertical cloth is controllable, shaking is prevented, and the safety of escape personnel is ensured. The limit slide block is calibrated with scales, the relation between the descending height of the smoke-blocking cloth and the displacement of the spring is calculated according to the gear transmission ratio, and the position of the slide block is set according to the design requirement during installation, so that the descending height of the smoke-blocking cloth is controlled. The manual and electric control devices have the functions of linkage and on-site manual starting of a fire control room, meet the 5.2.5 provisions of the technical standards of building smoke and smoke prevention and discharge systems (GB 51251-2017), and enable the fire-fighting facility to be more systematic and complete. The modular splicing and extending device can be spliced and extended in a modular mode and is suitable for large-span space application.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Figure 2 is a schematic view of the drop of the smoke barrier of the present invention.

Fig. 3 is a cross-sectional view of the present invention.

FIG. 4 is a schematic view of the electromagnet according to the present invention in a compressed state when it is energized to compress the spring.

FIG. 5 is a schematic view of the extension of the compression spring after the electromagnet of the present invention is de-energized.

In the figure: 1-smoke blocking vertical cloth, 2-rotating shaft, 3-bearing, 4-suspended ceiling, 5-gear transmission mechanism, 51-rack, 52-gear I, 53-gear II, 54-gear III, 6-electromagnet, 7-compression spring, 8-metal box body, 9-controller, 10-manual button, 11-shell and 12-limiting slide block.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered 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; 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.

As shown in fig. 1-3, a height-adjustable movable smoke barrier suspended wall device comprises a smoke barrier suspended cloth 1, wherein one end of the smoke barrier suspended cloth 1 is fixed on a rotating shaft 2, the other end is a free end and can be lifted along with the rotation of the rotating shaft 2, the rotating shaft 2 is fixed under a ceiling 4 through a bearing 3, one end of the rotating shaft 2 is connected with a gear transmission mechanism 5 and is driven by the gear transmission mechanism 5 to rotate; the power source of the gear transmission mechanism 5 comprises an electromagnet 6 and a compression spring 7 which are fixed on the wall, one end of the compression spring 7 is fixed on the electromagnet 6, the other end of the compression spring is connected with the gear transmission mechanism 5, a metal box body 8 is arranged outside the compression spring 7, one end of the metal box body 8, which is far away from the electromagnet 6, is fixed on the gear transmission mechanism 5, the electromagnet 6 is electrified to adsorb the metal box body 8, and the compression spring 7 is fixed in the metal box body 8.

The gear transmission mechanism comprises a rack 51, a gear I52, a gear II 53 and a gear III 54, wherein the rack 51 is located below the gear I52 and is meshed with the gear I52, the gear I52 and the gear II 53 are coaxial, the radius of the gear I52 is smaller than that of the gear II 53, the gear II 53 obtains larger linear displacement through a transmission ratio with the gear I52, the gear II 53 is vertically meshed with the gear III 54, and the gear III 54 is sleeved at one end of the rotating shaft 2. The gear transmission mechanism 5 realizes the rotation of the rotating shaft 2 through the transmission ratio between the gear I52 and the gear II 53 and the space direction conversion between the gear II 53 and the gear III 54.

The electromagnet is connected with a controller 9, and the controller 9 is connected with an automatic fire alarm system and/or a manual button 10. The controller 9 is a monitoring module and is connected to the monitoring extension set through a communication bus. After receiving the fire alarm signal, the automatic fire alarm system transmits the signal to the controller 9, and after receiving the automatic fire alarm signal, the controller 9 controls the power failure to enable the electromagnet 6 to lose magnetism and release the elastic potential energy of the compression spring 7. Or the manual button 10 is arranged on the wall below the smoke barrier cloth, the setting height can be about 1.5m, an adult can conveniently press the button, a child can be prevented from pressing the button at will, the electromagnet 6 is powered off by pressing the manual button 10 through the controller 9, and the elastic potential energy of the compression spring 7 is released.

As shown in fig. 4 and 5, a housing 11 is provided outside the electromagnet 6, the compression spring 7, and the gear transmission mechanism 5, and a stopper slider 12 for stopping the metal case 8 is provided on the inner surface of the housing 11. According to the expansion amount of the compression spring 7 tested in advance, scales are marked on the shell 11, the position of the limiting slide block 12 is adjusted as required, the descending height of the smoke blocking cloth 1 can be adjusted, and the requirement of clear height of design is met, as shown in fig. 3. The electromagnet 6 is powered off after receiving the signal of the automatic alarm system and/or the manual button, slowly loses the magnetic attraction effect to release the compression spring 7, the compression spring 7 drives the rack 51 to move, the gear I52 rotates to drive the gear II 53 and the gear III 54 to rotate, the rotating shaft 2 is driven to rotate, and the smoke blocking vertical cloth 1 descends. The limiting slide block 12 controls the extension displacement of the compression spring 7, and finally the descending height of the smoke-blocking cloth 1 is controlled.

The smoke barrier cloth 1 is made of flexible non-combustible materials, preferably flame-retardant materials, has good fireproof effect and does not have magnetism. The flexible smoke blocking vertical cloth 1 is wound on the rotating shaft 2 at ordinary times, so that space is saved.

Claims

1. The utility model provides a height-adjustable's movable fender cigarette hangs down wall device, hangs down cloth including keeping off the cigarette, its characterized in that: one end of the smoke blocking vertical cloth is fixed on the rotating shaft, the other end of the smoke blocking vertical cloth is a free end and can rotate along with the rotating shaft to realize lifting, the rotating shaft is fixed below the suspended ceiling through a bearing, and one end of the rotating shaft is connected with the gear transmission mechanism and rotates under the driving of the gear transmission mechanism; the power source of the gear transmission mechanism comprises an electromagnet and a compression spring which are fixed on the wall, one end of the compression spring is fixed on the electromagnet, the other end of the compression spring is connected with the gear transmission mechanism, a metal box body is arranged outside the compression spring, one end of the metal box body, which is far away from the electromagnet, is fixed on the gear transmission mechanism, and the electromagnet is electrified to adsorb the metal box body, so that the compression spring is fixed in the metal box body.

2. The movable smoke barrier suspended wall apparatus as set forth in claim 1, wherein: the gear transmission mechanism comprises a rack, a gear I, a gear II and a gear III, wherein the rack is located below the gear I and is meshed with the gear I, the gear I and the gear II are coaxial, the radius of the gear I is smaller than that of the gear II, the gear II is vertically meshed with the gear III, and the gear III is sleeved at one end of the rotating shaft.

3. The movable smoke barrier suspended wall apparatus as set forth in claim 1, wherein: the outer parts of the electromagnet, the compression spring and the gear transmission mechanism are provided with a shell, and the inner surface of the shell is provided with a limiting slide block for blocking the metal box body.

4. The movable smoke barrier suspended wall apparatus as set forth in claim 1, wherein: the electromagnet is connected with a controller, the controller is connected with an automatic fire alarm system and/or a manual button, and the manual button is arranged on the wall below the smoke barrier vertical wall.

5. The movable smoke barrier suspended wall apparatus as set forth in claim 1, wherein: the smoke blocking vertical cloth is made of flexible non-combustible materials and has no magnetism.