CN215520702U

CN215520702U - Sealed electric rolling shutter door for livestock negative pressure fan

Info

Publication number: CN215520702U
Application number: CN202121805242.XU
Authority: CN
Inventors: 刘轶; 鲁武军
Original assignee: Beijing Shengsi Technology Co ltd
Current assignee: Beijing Shengsi Technology Co ltd
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2022-01-14
Anticipated expiration: 2031-08-04

Abstract

The sealed electric rolling shutter door for the livestock negative pressure fan comprises a rolling shutter door electric device, a rolling shutter door frame and a rolling shutter door curtain, wherein the rolling shutter door electric device drives the rolling shutter door curtain to move up and down in a U-shaped frame of the rolling shutter door frame, and the rolling shutter door curtain is formed by bonding a layer of door curtain covering layer outside a plurality of hinged curtain pieces through an adhesive. The utility model has the beneficial effects that: the problem of sealing the gap between the hinged curtain sheets of the rolling door is solved very well, so that the air return prevention and heat preservation effects in the livestock and poultry house are ensured. Especially in cold winter, the heat loss in the house can be reduced, and the heat preservation and energy saving effects are achieved. Meanwhile, the noise generated when the original curtain sheet hinged type electric rolling curtain door is opened and closed can be reduced or eliminated, the stress of animals caused by the noise is avoided, and a good breeding environment is provided.

Description

Sealed electric rolling shutter door for livestock negative pressure fan

Technical Field

The utility model relates to the technical field of fans, in particular to a sealed electric rolling shutter door for a livestock negative pressure fan, which can be widely applied to an installation hole of an environment-controlled negative pressure fan of a livestock breeding shed to prevent air, rain and snow outside the shed from flowing backwards and prevent the inside of the shed from being insulated in winter.

Background

At present, a large amount of negative pressure fans with large air volume are adopted in livestock and poultry farms to adjust and control breeding environment indexes such as temperature and harmful gas concentration in livestock and poultry houses. When the negative pressure fan works, a large amount of unqualified air in the house is discharged outside the house, so that the air pressure in the house is reduced, negative pressure is generated outside the house relatively, and fresh air outside the house is forced to enter the house. And when the qualified air quality in the house is achieved, the fan stops working. At the moment, the air inlet of the fan needs to be closed, the air is prevented from being filled into the house from the outside, and particularly in winter, the temperature in the house can be prevented from losing.

The current common air return prevention device comprises: a heavy hammer shutter type, a spring reset butterfly valve type and the like. The devices are passively opened by means of wind pressure formed when the fan works, and the heavy hammer or the spring is used for closing and resetting after the fan stops.

The shutter can be arranged at the air inlet or the air outlet of the fan, and the air pressure generated by the fan is sucked or blown. The louver blades are supported by a plurality of supports, and the existence of the blades and the supports reduces about 15% of the cross section area of inlet air, forms wind resistance, interferes air flow and reduces the efficiency of the fan. In addition, a large amount of blade assemblies have a large amount of fit gaps, and the air return prevention effect and the heat preservation effect are reduced. Meanwhile, the opening of the blades consumes wind energy generated by the fan and generates vibration in pulsating airflow, so that a large amount of noise is generated, and the efficiency of the fan is further reduced.

The spring reset butterfly valve is generally installed at an air outlet of the fan, the two butterfly pieces rotate around respective rotating shafts respectively, and are blown open by wind energy generated by the fan and always counterbalance the restoring force of the spring. The rotating shaft, the thickness of the butterfly sheet, the return spring and the fixing device thereof are added together, so that the air outlet area is reduced by about 8 percent, and disturbance is generated to the air outlet. These factors all reduce the efficiency of the fan.

In view of the problems with the above-described devices, roller door solutions have subsequently emerged. The fan adopts an independent driving mode, can realize 100 percent of full opening and full closing actions, does not occupy the sectional area of an air duct, does not generate wind resistance, does not lose the efficiency of the fan, and is gradually and widely accepted and adopted at home and abroad at present. However, the curtain of the roller shutter door is formed by hinging a large number of curtain sheets, gaps exist between the adjacent curtain sheets, and the adjacent curtain sheets cannot be well sealed, so that a small amount of air leakage still exists, and the heat insulation effect is not ideal.

Disclosure of Invention

The utility model aims to overcome the defects of untight sealing and air circulation cross section area invasion of various anti-return air sealing and heat-insulating devices and provide a sealing electric rolling door for a livestock negative pressure fan. The roller shutter door improves the sealing performance on the basis of the existing roller shutter door, has all the advantages of the roller shutter door, simultaneously meets the requirement of no-gap sealing, and can well achieve the sealing and heat-preserving effects.

The technical scheme adopted by the utility model for realizing the purpose is as follows: the sealed electric rolling shutter door for the livestock negative pressure fan comprises a rolling shutter door electric device, a rolling shutter door frame and a rolling shutter door curtain, wherein the rolling shutter door electric device drives the rolling shutter door curtain to move up and down in a U-shaped frame of the rolling shutter door frame, and the rolling shutter door curtain is formed by bonding a layer of door curtain covering layer outside a plurality of hinged curtain pieces through an adhesive.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model solves the problem of sealing the gap between the hinged curtain sheets of the rolling door very well, thereby ensuring the effect of air return prevention and heat preservation in the livestock and poultry house. Especially in cold winter, the heat loss in the house can be reduced, and the heat preservation and energy saving effects are achieved. Meanwhile, the noise generated when the original curtain sheet hinged type electric rolling curtain door is opened and closed can be reduced or eliminated, the stress of animals caused by the noise is avoided, and a good breeding environment is provided.

The utility model has simple structure and is practical.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view A-A of the structure of FIG. 1;

fig. 3 is a schematic view of the structure C of fig. 2.

Detailed Description

The utility model will be described in further detail with reference to the following detailed description and accompanying drawings:

embodiment 1, as shown in fig. 1 to 3, a sealed electric rolling shutter door for a livestock negative pressure fan comprises an electric rolling shutter door device 1, a rolling shutter door frame 2, and a rolling shutter door curtain 3, wherein the rolling shutter door curtain 3 is formed by bonding a door curtain covering layer 3-3 on the outer surface of a plurality of hinged curtain pieces 3-1 through an adhesive 3-2.

One end of the rolling door curtain 3 is arranged in the U-shaped frame 2-1 of the rolling door frame 2, the rolling door electric device 1 drives one end of the rolling door curtain 3 to move up and down in the U-shaped frame 2-1 of the rolling door frame 2, the rolling door curtain 3 is opened or closed, and the purpose that the hinged gaps of the plurality of curtain sheets 1 are completely sealed is achieved.

In the case of the example 2, the following examples are given,

a sealed electric rolling shutter door for a livestock negative pressure fan comprises a rolling shutter door electric device 1, a rolling shutter door frame 2 and a rolling shutter door curtain 3, wherein the rolling shutter door curtain 3 is formed by bonding a door curtain covering layer 3-3 on the inner surface of a plurality of hinged curtain sheets 3-1 through an adhesive 3-2.

One end of the rolling door curtain 3 is arranged in the U-shaped frame 2-1 of the rolling door frame 2, the rolling door electric device 1 drives the rolling door curtain 3 to move up and down in the U-shaped frame 2-1 of the rolling door frame 2, the rolling door curtain 3 is opened or closed, and the purpose that the hinged gaps of the plurality of curtain sheets 1 are completely sealed is achieved.

In the case of the example 3, the following examples are given,

a sealed electric rolling shutter door for a livestock negative pressure fan comprises a rolling shutter door electric device 1, a rolling shutter door frame 2 and a rolling shutter door curtain 3, wherein the rolling shutter door curtain 3 is formed by bonding a door curtain covering layer 3-3 on the inner surface and the outer surface of a plurality of hinged curtain sheets 3-1 through adhesives 3-2 respectively.

The surface of the door curtain covering layer 3-3 is provided with a waterproof and flame-retardant layer or is subjected to waterproof and flame-retardant treatment.

The door curtain covering layer 3-3 is stuck on the hinged curtain sheets 3-1 through the adhesive 2, and the corresponding elasticity is kept after the adhesive 2 is completely cured.

The thickness of the curtain cover 3-3 is between 0.5mm and 35 mm.

The curtain cover 3-3 is a cotton felt or a cotton felt or is not limited to the above materials.

The sealed electric rolling shutter door for the livestock negative pressure fan is arranged at a hole of the livestock breeding shed, which is provided with the ring-control negative pressure fan, and can be arranged at an air inlet and an air outlet.

Claims

1. The utility model provides a poultry negative pressure fan is with sealed electric roller shutter door, includes rolling slats door electric actuator (1), rolling slats door frame (2), rolling slats door curtain (3), and rolling slats door electric actuator (1) drive rolling slats door curtain (3) reciprocate in U type frame (2-1) of rolling slats door frame (2), its characterized in that: the rolling door curtain (3) is formed by bonding a door curtain covering layer (3-3) outside a plurality of hinged curtain sheets (3-1) through an adhesive (3-2).

2. The sealed electric rolling shutter door for the livestock negative pressure fan of claim 1, characterized in that: the rolling door curtain (3) is formed by bonding a door curtain covering layer (3-3) on the inner surface of a plurality of hinged curtain sheets (3-1) through an adhesive (3-2).

3. The sealed electric rolling shutter door for the livestock negative pressure fan of claim 1, characterized in that: the rolling door curtain (3) is formed by bonding a curtain covering layer (3-3) on the inner surface and the outer surface of a plurality of hinged curtain sheets (3-1) through an adhesive (3-2).

4. The sealed electric rolling shutter door for the livestock negative pressure fan of claim 1, characterized in that: the surface of the door curtain covering layer (3-3) is provided with a waterproof and flame-retardant layer.

5. The sealed electric rolling shutter door for the livestock negative pressure fan of claim 1, characterized in that: the thickness of the door curtain covering layer (3-3) is between 0.5mm and 35 mm.

6. The sealed electric rolling shutter door for the livestock negative pressure fan of claim 1, characterized in that: the door curtain covering layer (3-3) is made of cotton felt or cotton felt.