CN216921058U - Windproof and snow-proof large-size roof ventilator - Google Patents

Abstract

A wind-proof snow-proof large-scale roof ventilator comprises a plurality of ventilator frameworks, rain baffles and outer protective plates which are symmetrically arranged; the lower ends of two stand columns of each ventilator framework are respectively provided with a cross beam, the cross beam is provided with an M-shaped bracket, the middle parts of the M-shaped brackets of the ventilator frameworks are symmetrically provided with two guide plates, two sides of the M-shaped bracket are respectively symmetrically provided with two valve plates, one side of each valve plate is hinged to the upper end of the outer side of each guide plate, an opening and closing device is symmetrically arranged between each valve plate and the ventilator framework, and the opening and closing device is rigidly connected with the valve plates; flashing plates are symmetrically arranged among the ventilator frames, and the valve plates are pressed on the flashing plates when closed; the valve plate extends upwards along the inclination of the guide plate after being opened. The ventilator can reduce the overall dimension of the valve plate and increase a maintenance safety channel, is convenient to manufacture, transport, install and maintain, prevents from being damaged by wind power and reduces accumulated snow leakage of the valve plate; can be used as a new ventilator and can also be used as the existing ventilator for modification.

Description

Windproof and snow-proof large-specification roof ventilator

Technical Field

The utility model relates to the field of building ventilation, in particular to a wind-proof and snow-proof large-size roof ventilator.

Background

Roof ventilators of large specifications are arranged on roofs of a plurality of large-scale production workshops, span specifications of a plurality of ventilators can reach 6 meters or 9 meters, and product specifications are large, so that the overall dimension and the specification of manufacturing materials of a single valve plate of the ventilator manufactured according to a conventional traditional mode are also large, and therefore the technical problems of multiple aspects of products are caused:

1. the overlarge external dimension is limited by the transportation width and the height. The roof ventilator is manufactured in a factory, components are transported to a project site for assembly and installation, the width of a conventional road transport vehicle is generally 2.3-2.4 m, the valve plate of the ventilator with the standard of 6 m is generally 3 m wide, and a large plate vehicle for ultra-wide transportation needs to be found; and the valve plate width of the 9-meter ventilator can reach nearly 4.5 meters, and the ventilator cannot be transported integrally at all.

2. The valve plate is made of large-specification materials and has the problems of installation and maintenance caused by heavy self weight. The large specification and size of the valve plate lead to the large specification of the manufacturing structure material of the valve plate and the self-weight of the valve plate, so that the valve plate which is positioned above a roof hole and lacks a safety maintenance platform under the high-altitude operation condition is very difficult to install, maintain and repair, and the valve plate and the opening and closing transmission mechanism are often damaged due to the fact that the valve plate is difficult to maintain and repair after the valve plate is put into production.

3. The valve plate has large specification and self weight and is difficult to construct by adopting a rigid transmission machine. The valve plate of the ventilator adopts a lateral rotation opening and closing mode, the valve plate is large in appearance, large in self weight, large in opening and closing rotation radius, and a conventional rigid opening and closing transmission mechanism is difficult to adopt. At present, an opening and closing transmission mechanism adopting an electric hoisting mode drives a long pipe shaft to rotate and roll a steel cable to overcome the gravity traction of a valve plate to open, and the steel cable is released by the reverse rotation of the pipe shaft to enable the valve plate to fall and close by means of gravity.

The hoist traction mode has the advantages of heavy load, no limitation of opening and closing angle, but the hoist traction mode is used for opening and closing control of a valve plate of a ventilator and has various disadvantages: (1) the valve plate is lack of rigidity control and can freely fall and break under the action of internal and external wind pressure. The ventilator valve plate is easy to lose control due to lack of a rigid locking function in the closing working condition of the ventilator valve plate in a steel rope traction mode, particularly, the ventilator is high in installation height of a large-scale factory building, a multi-direction large-area air inlet hole is usually formed in the periphery of the factory building, instantaneous large air pressure easily overcomes the gravity of the valve plate to push the valve plate open and then the valve plate is caused to fall freely in a reverse direction, and frequent falling inevitably causes damage to a valve plate structure, a hinge mechanism and a transmission mechanism; (2) the valve plate and the opening and closing transmission mechanism are damaged due to out-of-control of the opening and closing mechanism. The valve plate opening and closing transmission mechanism adopting the winch traction mode needs to be controlled to be powered off by a limiting device, and once the limiting device fails, the winch mechanism rotates the scroll to work in an unlimited manner until the valve plate and the transmission mechanism are thoroughly destroyed, and the damaged structural part falls down to form a safety threat to production in a factory building.

4. The problem of snow accumulation, snow melting and leakage of the valve plate in winter. The disorganization of the light snowflakes under the action of wind power enables the light snowflakes to flow backwards from the upper part and two sides of the ventilator to form snow on the valve plate when snowing in winter, and then the snow is melted and leaked into a room.

5. To the valve plate that adopts the plane skylight to increase the daylighting function, traditional horizontal installation valve plate still easily deposition causes the inefficacy problem of daylighting function.

In conclusion, the large-specification roof ventilator with the conventional structure needs to solve the problems that the valve plate is too large in overall dimension and too heavy to manufacture, transport and install, the high-altitude operation lacks safe maintenance and overhaul conditions, the flexible opening and closing transmission mechanism is out of control and damaged, the valve plate is accumulated with snow and is leaked in winter, and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a wind-proof and snow-proof large-size roof ventilator which can reduce the overall dimension of a valve plate, is convenient to manufacture, transport, install and maintain, prevents the valve plate from being damaged by wind force and reduces the accumulated snow leakage of the valve plate.

The technical scheme of the utility model is as follows:

a windproof and snow-proof large-size roof ventilator comprises a plurality of ventilator frameworks which are parallel to each other and connected through a plurality of longitudinal rods, wherein a plurality of ventilator frameworks are provided with rain baffles and symmetrically arranged outer protecting plates for forming symmetrical S-shaped ventilation channels; the lower ends of the two upright posts of each ventilator frame are respectively provided with a crossbeam, and the crossbeam is provided with an M-shaped bracket, which is characterized in that: two guide plates are symmetrically fixed in the middle of the M-shaped supports of the ventilator frameworks to form a V shape, two valve plates are symmetrically arranged on two sides of the M-shaped supports of two adjacent ventilator frameworks respectively, one side of each valve plate is hinged to the upper end of the outer side of each guide plate, opening and closing devices are symmetrically arranged between the valve plates and the ventilator frameworks, and the opening and closing devices are rigidly connected with the valve plates on the same side and used for controlling the synchronous opening and closing of the valve plates; flashing plates are symmetrically arranged between the ventilator frameworks and positioned at the lower ends of the upright posts, the upper ends of the flashing plates are pressed on the two ends of the M-shaped bracket, and the valve plates are obliquely arranged when being closed and the outer sides of the valve plates are pressed on the flashing plates for closing the ventilation channels; the valve plate is opened the back and upwards extends along guide plate inclination for open the ventiduct.

Preferably, the M-shaped support is formed by fixedly connecting two outer oblique rods and two inner oblique rods which are symmetrically arranged, and the M-shaped support, the upright post and the cross beam are fixed through bolts respectively so as to be convenient to disassemble, assemble and transport.

As further preferred, the headstock gear includes power supply, transmission mobile jib and branch, the power supply articulates on the ventilator framework that is located roofing vent one end, transmission mobile jib one end and power supply output coaxial coupling, and the transmission mobile jib other end passes through a uide bushing slidable mounting on the ventilator framework that is located the roofing vent other end, branch is a plurality of and articulates respectively between every valve plate middle part and transmission mobile jib to realize the opening and closing control in the time to a plurality of valve plates of M type support one side.

Preferably, when the valve plate is opened, an included angle between the corresponding support rod and the transmission main rod is an acute angle; after the valve plate is closed, the corresponding supporting rod is perpendicular to the transmission main rod by 90 degrees, so that the valve plate is self-locked after being closed.

Preferably, the guide plate, the valve plate and the flashing plate are all of composite heat-insulating structures so as to prevent condensation in winter.

Preferably, drainage ditches are symmetrically arranged on the ventilator frames at two sides of the rain shielding plate so as to facilitate drainage.

The utility model has the beneficial effects that:

1. because two guide plates are symmetrically fixed in the middle of the M-shaped support of the ventilator frameworks, two valve plates are symmetrically arranged on two sides of the M-shaped support of two adjacent ventilator frameworks respectively, one side of each valve plate is hinged to the upper end of the outer side of each guide plate, the overall size of each valve plate can be reduced by improving the structure of each valve plate, and the valve plates are convenient to manufacture, transport, install and overhaul; the guide plate can be used as a maintenance safety channel, thereby being convenient for maintenance after installation.

2. Because the valve plate is obliquely arranged when closed and the outer side of the valve plate is pressed on the flashing plate, the ventilation channel can be closed, the function of preventing snowflakes from floating to the inside of the ventilator is formed, the problems of accumulated snow and snow melting leakage of the valve plate of the ventilator can be solved, and the problem of influence of accumulated dust on the valve plate on the lighting function can be reduced; the valve plate is opened the back and is upwards extended along guide plate inclination, can open the ventiduct and realize the ventilation direction of air current to improve ventilation effect.

3. Because the opening and closing devices are symmetrically arranged between the valve plate and the ventilator frame and are rigidly connected with the valve plates positioned on the same side, the opening and closing devices are used for controlling the synchronous opening and closing of the valve plates; the synchronous rigid opening and closing control of a large-size ventilator in a long distance and a plurality of valve plates can be realized, and the rigid locking function of the valve plates under the closing working condition is formed, so that the problem of the damage caused by the out-of-control power of a limiting failure of a flexible winding opening and closing mechanism is avoided, the problem of the damage caused by the free rise and fall of the valve plates under the action of wind pressure is avoided, and the damage caused by the wind pressure can be prevented; can be used as a new ventilator and can also be used as the existing ventilator for modification.

Drawings

Fig. 1 is a schematic view of the valve plate of the present invention after it is closed.

Fig. 2 is a schematic view of the valve plate of the present invention after opening.

Fig. 3 is a schematic structural diagram of the opening and closing device of the present invention.

In the figure: the ventilator comprises a ventilator frame 1, a vertical column 101, an outer guard plate 2, a rain baffle 3, a drainage ditch 4, an opening and closing device 5, an M-shaped bracket 6, an inner oblique rod 601, an outer oblique rod 602, a guide plate 7, a valve plate 8, a flashing plate 9, a cross beam 10, a V-shaped ditch 11, a power source 501, a transmission main rod 502, a branch 503 and a guide sleeve 504.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.

Example 1

As shown in fig. 1 to 3, the wind-proof snow-proof large-sized roof ventilator according to the present invention comprises a plurality of ventilator frames 1 which are fixed on the basis of a roof ventilation opening in parallel and connected with each other through a plurality of longitudinal bars, wherein a rain baffle 3 and two outer shields 2 which are symmetrically arranged are fixedly connected to the plurality of ventilator frames 1 to form a symmetrical S-shaped ventilation channel; the rain baffle 3 is ridge-shaped and is fixed on a plurality of ventilator frames 1 through a plurality of purlins, and drainage ditches 4 are symmetrically fixed on two sides of the rain baffle 3 on the ventilator frames 1 so as to facilitate drainage.

The lower ends of two vertical columns 101 of each ventilator frame 1 are respectively welded with a cross beam 10, the cross beam 10 is provided with an M-shaped bracket 6, the M-shaped bracket 6 is formed by fixedly welding two outer oblique rods 602 and two inner oblique rods 601 which are symmetrically arranged, and the two ends of the M-shaped bracket 6 and the vertical columns 101, the middle part of the M-shaped bracket 6 and the cross beam 10 are respectively fixed through bolts so as to be convenient for disassembly, assembly and transportation.

Two guide plates 7 which form a V shape are symmetrically and fixedly supported in the middle of the M-shaped supports 6 on the ventilator frames 1 through purlins and screws, and a V-shaped ditch 11 is connected between the inner ends of the two guide plates 7 so as to drain water and prevent accumulated snow from melting and leaking into a room. Two valve plates 8 are symmetrically arranged between two sides of an M-shaped bracket 6 of two adjacent ventilator frameworks 1 respectively, each valve plate 8 is composed of a framework formed by welding square pipes and a color plate fixed on the framework, one side of each valve plate 8 is hinged to the upper end of the outer side of a guide plate 7 through a hinge, an opening and closing device 5 is symmetrically arranged between each valve plate 8 and the ventilator framework 1, and the opening and closing devices 5 are rigidly connected with a plurality of valve plates 8 positioned on the same side and used for controlling the synchronous opening and closing of the valve plates 8. Flashing plates 9 are symmetrically fixed at the lower ends of the upright columns 101 among the ventilator frames 1, the flashing plates 9 are contour plates, the upper ends of the flashing plates are pressed on the two ends of the M-shaped bracket 6, the valve plates 8 are obliquely arranged when being closed, and the outer sides of the valve plates are pressed on the flashing plates 9 and are used for closing ventilation channels; the valve plate 8 extends upwards along the inclination of the guide plate 7 after being opened and is used for opening a ventilation channel.

The opening and closing device 5 comprises a power source 501, a transmission main rod 502 and a branch 503, wherein the power source 501 is an electric push rod or an electric cylinder and is hinged on a ventilator framework 1 positioned at one end of a roof ventilation opening, the transmission main rod 502 is arranged in parallel with a longitudinal rod, one end of the transmission main rod 502 is coaxially connected with the output end of the power source 501, the other end of the transmission main rod 502 is slidably mounted on the ventilator framework 1 positioned at the other end of the roof ventilation opening through a guide sleeve 504, and the branch 503 is a plurality of branches and is hinged between the middle part of each valve plate 8 and the transmission main rod 502 through universal joints respectively so as to realize opening and closing control of a plurality of valve plates 8 on one side of the M-type support 6.

When the valve plate 8 is opened, the included angle between the corresponding strut 503 and the transmission main rod 502 is an acute angle; after valve plate 8 closed, it is 90 degrees space verticals between branch 503 and the transmission mobile jib 502 that it corresponds to realize the auto-lock after valve plate 8 closed, thereby realize blockking in winter to the inside snow function that wafts in workshop, the valve plate 8 that the slope set up can also avoid snow to melt the seepage.

During operation, through the switch of headstock gear 5 control valve plate 8, specific process stretches out for power supply 501, promotes transmission mobile jib 502 and slides forward, drives every valve plate 8 through branch 503 and turns over down simultaneously, and on dropping on M type support 6 and pressing flashing board 9 to close the ventiduct, realize blockking in winter and to the inside snow function that wafts in workshop, the valve plate 8 of slope setting can also avoid snow to melt the seepage. When indoor ventilation needs to be carried out, the power source 501 is controlled to retract, the transmission main rod 502 is driven to slide backwards, each valve plate 8 is driven to turn upwards through the supporting rod 503 until the valve plates extend upwards in parallel to the guide plate 7 and the ventilation channel is opened, and therefore the ventilation function can be achieved.

Example 2

The utility model relates to a windproof and snow-proof large-size roof ventilator, wherein a guide plate 7, a valve plate 8 and a flashing plate 9 are all of composite heat-insulating structures so as to prevent dewing in winter. Other structures of this embodiment are the same as those of embodiment 1, and are not described again in this embodiment.

While embodiments of the utility model have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the utility model pertains, and further modifications may readily be made by those skilled in the art, it being understood that the utility model is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims (6)

1. A windproof and snow-proof large-size roof ventilator comprises a plurality of ventilator frameworks which are parallel to each other and connected through a plurality of longitudinal rods, wherein a plurality of ventilator frameworks are provided with rain baffles and symmetrically arranged outer protecting plates for forming symmetrical S-shaped ventilation channels; the lower ends of the two stand columns of each ventilator frame are respectively provided with a crossbeam, and the crossbeam is provided with an M-shaped bracket, which is characterized in that: two guide plates are symmetrically fixed in the middle of the M-shaped supports of the ventilator frameworks to form a V shape, two valve plates are symmetrically arranged on two sides of the M-shaped supports of two adjacent ventilator frameworks respectively, one side of each valve plate is hinged to the upper end of the outer side of each guide plate, opening and closing devices are symmetrically arranged between the valve plates and the ventilator frameworks, and the opening and closing devices are rigidly connected with the valve plates on the same side and used for controlling the synchronous opening and closing of the valve plates; flashing plates are symmetrically arranged between the ventilator frameworks and positioned at the lower ends of the upright posts, the upper ends of the flashing plates are pressed on the two ends of the M-shaped bracket, and the valve plates are obliquely arranged when being closed and the outer sides of the valve plates are pressed on the flashing plates for closing the ventilation channels; the valve plate is opened the back and upwards extends along guide plate inclination for open the ventiduct.

2. The wind and snow resistant large format roof ventilator of claim 1 wherein: the M-shaped support is formed by fixedly connecting two outer oblique rods and two inner oblique rods which are symmetrically arranged, and the M-shaped support, the upright post and the cross beam are fixed through bolts respectively so as to be convenient to disassemble, assemble and transport.

3. The wind and snow resistant large format roof ventilator of claim 1 wherein: the opening and closing device comprises a power source, a transmission main rod and branch rods, wherein the power source is hinged to a ventilator framework located at one end of a roof ventilation opening, one end of the transmission main rod is coaxially connected with the output end of the power source, the other end of the transmission main rod is slidably mounted on the ventilator framework located at the other end of the roof ventilation opening through a guide sleeve, and the branch rods are a plurality of and hinged between the middle part of each valve plate and the transmission main rod respectively so as to realize opening and closing control of a plurality of valve plates on one side of the M-type support.

4. A wind and snow resistant large format roof ventilator as claimed in claim 3 in which: when the valve plate is opened, the included angle between the corresponding support rod and the transmission main rod is an acute angle; after the valve plate is closed, the corresponding supporting rod is perpendicular to the transmission main rod by 90 degrees, so that the valve plate is self-locked after being closed.

5. A wind and snow resistant large format roof ventilator as claimed in claim 1 or claim 3 or claim 4 in which: the guide plate, the valve plate and the flashing plate are all of composite heat-insulating structures so as to prevent dewing in winter.

6. The wind and snow resistant large format roof ventilator of claim 1 wherein: drainage ditches are symmetrically arranged on the two sides of the rain blocking plate on the plurality of ventilator frames so as to facilitate drainage.

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