CN215521339U

CN215521339U - II-type electric opening-closing sealing and heat-insulating device for livestock negative pressure fan

Info

Publication number: CN215521339U
Application number: CN202121805245.3U
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 utility model provides a poultry negative pressure fan is with sealed heat preservation device of II type electronic switching, whole soft cotton quilt curtain is gone up the spaced several location guide bars that are equipped with, the slat between the guide pillar of several location guide bar both sides is the clamp respectively in whole soft cotton quilt curtain, make a line ball respectively on the whole soft cotton quilt curtain from top to bottom along every location guide bar slat, fix the location guide bar on whole soft cotton quilt curtain, several location guide bar both sides guide pillar set up respectively in two cotton quilt curtain guide frame U inslot, whole soft cotton quilt curtain bottom surface fixed weight pole, whole soft cotton quilt curtain's top winding is on electronic book curtain device, electronic book curtain device drives whole soft cotton quilt curtain and realizes sliding from top to bottom on two cotton quilt curtain guide frames. The device has all the advantages of the rolling door in the prior art, simultaneously meets the requirement of gapless sealing, and has excellent sealing and heat-insulating effects.

Description

II-type electric opening-closing sealing and heat-insulating device for livestock negative pressure fan

Technical Field

The utility model relates to a II-type electric opening and closing sealing heat preservation device for a livestock negative pressure fan, which can be widely applied to an installation tunnel opening 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 heat preservation in the shed after the fan stops working.

Background

The livestock shed environment-controlled negative pressure fan is important equipment for adjusting and controlling breeding environment indexes such as temperature, harmful gas concentration and the like in the livestock shed. When the fan works, a large amount of unqualified air in the house is discharged outside the house, 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. The air inlet or the air outlet of the fan is generally provided with a device which is correspondingly opened and closed along with the starting and stopping of the fan, and when the fan is stopped, air outside the house or rain and snow can be prevented from flowing backwards from the hole of the fan to enter the house.

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; after the blower is stopped, the heavy hammer or the spring is used for closing and resetting.

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 the cross-sectional area of air inlet by about 15%, so that wind resistance is formed, air flow is disturbed, and the efficiency of the fan is reduced. 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% approximately, 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 that various air return preventing sealing heat preservation devices in the prior art are not tight in sealing and occupy the area of an air circulation section, and provides a II-type electric opening-closing sealing heat preservation device for a livestock negative pressure fan.

The device is used for the livestock negative pressure fan, when the device is started, the air inlet and the air outlet of the fan are not completely shielded, and the use efficiency of the fan can be improved to the maximum extent; when the fan is closed, the hole of the fan is completely sealed, so that the functions of preventing backflow and preserving heat are achieved. The device has all the advantages of the roller shutter door, simultaneously meets the requirement of gapless sealing, and has excellent sealing and heat-insulating effects.

In order to achieve the purpose, the utility model adopts the following technical scheme: a poultry negative pressure fan uses II type electronic opening and closing sealed heat insulation device, including the cotton quilt curtain guide frame, whole soft cotton quilt curtain, electronic rolling screen device, there are electronic rolling screen devices above two cotton quilt curtain guide frames set up at intervals, also wrap up and position the guide lever, counterweight rod;

the whole soft cotton quilt curtain is provided with a plurality of positioning guide rods at intervals, slats between guide columns on two sides of the positioning guide rods are respectively clamped in the whole soft cotton quilt curtain, a pressing line is sewn on the whole soft cotton quilt curtain along the upper portion and the lower portion of each positioning guide rod slat, the positioning guide rods are fixed on the whole soft cotton quilt curtain, the guide columns on two sides of the positioning guide rods are respectively arranged in U grooves of guide frames of the two cotton quilt curtains, a balance weight rod is fixed on the bottom surface of the whole soft cotton quilt curtain, the whole soft cotton quilt is wound on the electric rolling curtain device above the curtain, and the electric rolling curtain device drives the whole soft cotton quilt curtain to slide up and down on the guide frames of the two cotton quilt curtains.

The utility model has the beneficial effects that:

the device adopts an independent electric roller shutter device to open and close, does not consume wind energy generated by the fan, can be completely opened and closed, does not occupy the sectional area of the air inlet, does not generate disturbance to air inlet and air outlet airflow, does not generate noise, and can improve the efficiency of the fan. And the integral cotton quilt curtain has excellent sealing and heat-insulating properties, so that the heat loss in the house can be reduced particularly in cold winter, and the effects of heat insulation and energy conservation can be achieved. In addition, the cotton quilt has the effects of sound absorption and noise reduction, can avoid animal stress caused by noise, and provides a good breeding environment. Especially, the device plays a role in preventing backflow, preserving heat and saving energy in winter.

The laths between the guide posts on the two sides of the positioning guide rods are respectively clamped in the integral soft cotton quilt curtain, and the positioning guide rods are fixed on the integral soft cotton quilt curtain by the two pressing lines, so that the integral soft cotton quilt curtain can be kept flat and stable in the process of full opening or full closing of the integral soft cotton quilt curtain.

The cylindrical guide columns of the hemispherical heads at the two sides of the positioning guide rod are structurally designed and matched with the U groove of the cotton quilt curtain guide frame, so that the whole soft cotton quilt curtain can slide quickly in the fully opening or fully closing action, and labor is saved.

The whole structure is simple, and the cost is low.

Drawings

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

FIG. 2 is a side view of the structure of the present invention;

FIG. 3 is a cross-sectional view A-A of the structure of FIG. 1;

fig. 4 is a schematic structural view of the positioning guide bar of the present invention.

Detailed Description

As shown in fig. 1 to 4, a type ii electric opening and closing sealing and heat insulating device for a livestock negative pressure fan comprises a quilt curtain guide frame 1, an integral soft quilt curtain 2, an electric rolling curtain device 3, a positioning guide rod 4 and a counterweight rod 5;

two sides of the positioning guide rod 4 are provided with hemispherical cylindrical guide posts 4-1, a strip plate 4-2 is arranged between the two guide posts 4-1, and the strip plate 4-2 is positioned at the center of the cross section of the two guide posts 4-1.

A plurality of positioning guide rods 4 are arranged on the whole soft cotton quilt curtain 2 at intervals, laths 4-2 between guide posts 4-1 at two sides of the positioning guide rods 4 are respectively wrapped and clamped in the whole soft cotton quilt curtain 2, a pressing line 6 is sewn on the whole soft cotton quilt curtain 2 along the upper part and the lower part of each positioning guide rod 4 lath 4-2, and the positioning guide rods 4 are fixed on the whole soft cotton quilt curtain 2 by the two pressing lines 6;

an electric roller shutter device 3 is arranged above two quilt curtain guide frames 1 which are arranged at intervals, guide posts 4-1 at two sides of a plurality of positioning guide rods 4 are respectively arranged in U grooves of the two quilt curtain guide frames 1, a balance weight rod 5 is fixed on the bottom surface of the whole soft cotton quilt curtain 2, and the whole soft cotton quilt is wound on the electric roller shutter device 3 above the curtain 2.

When the device is used, the electric roller shutter device 3 drives the guide posts 4-1 on the two sides of the plurality of positioning guide rods 4 on the integral soft cotton quilt curtain 2 to slide up and down along the U-shaped grooves 1-1 of the two cotton quilt curtain guide frames 1, so that 100% of the air inlet of the fan is fully opened or closed by the integral soft cotton quilt curtain 2, and the requirements of gapless sealing and the sealing and heat preservation effects are achieved.

The surface and the inner layer of the whole soft cotton quilt curtain 2 are both made of waterproof flame-retardant materials, and the whole is continuous and seamless.

The counterweight rod 5 is a hollow pipe or a solid pipe, and sealing wool tops are adhered to the bottom of the hollow pipe or the solid pipe; when the cotton quilt is a hollow tube, the two ends of the hollow tube are provided with tube plugs, weight increasing materials are filled in the tube, the weight increasing materials are solid materials or are not limited to the solid materials, and the dosage of the weight increasing materials is determined according to the force required by dragging the cotton quilt curtain.

The hollow pipe is a PVC flame-retardant hollow pipe or a galvanized steel pipe; the solid tube is round steel.

Claims

1. The utility model provides a poultry negative pressure fan seals heat preservation device with electronic switching of II type, includes cotton quilt curtain pedestal (1), whole soft cotton quilt curtain (2), electronic book curtain device (3), is equipped with electronic book curtain device (3), its characterized in that above two cotton quilt curtain pedestals (1) that set up at the interval: a positioning guide rod (4) and a counterweight rod (5) are also covered;

a plurality of positioning guide rods (4) are arranged on the integral soft cotton quilt curtain (2) at intervals, the battens (4-2) between the guide posts (4-1) at two sides of the positioning guide rods (4) are respectively clamped in the integral soft cotton quilt curtain (2), a pressing line (6) is sewn on the whole soft quilt curtain (2) above and below each positioning guide rod (4) slat (4-2), the positioning guide rods (4) are fixed on the whole soft quilt curtain (2), guide columns (4-1) on two sides of a plurality of positioning guide rods (4) are respectively arranged in U grooves of two quilt curtain guide frames (1), a balance weight rod (5) is fixed on the bottom surface of the whole soft quilt curtain (2), the upper part of the whole soft quilt curtain (2) is wound on an electric rolling device (3), and the electric rolling device (3) drives the whole soft quilt curtain (2) to slide up and down on the two quilt curtain guide frames (1).

2. The electric type-II opening-closing sealing and heat-insulating device for the livestock negative pressure fan as claimed in claim 1, which is characterized in that: two sides of the positioning guide rod (4) are provided with hemispherical cylindrical guide columns (4-1), a batten (4-2) is arranged between the two guide columns (4-1), and the batten (4-2) is positioned at the center of the cross section of the two guide columns (4-1).

3. The electric type-II opening-closing sealing and heat-insulating device for the livestock negative pressure fan as claimed in claim 1, which is characterized in that: the surface and the inner layer of the integral soft cotton quilt curtain (2) are both made of waterproof flame-retardant materials, and are a continuous seamless whole.

4. The electric type-II opening-closing sealing and heat-insulating device for the livestock negative pressure fan as claimed in claim 1, which is characterized in that: the counterweight rod (5) is a hollow tube or a solid tube, and sealing wool tops are adhered to the bottom of the hollow tube or the solid tube; when the hollow pipe is used, the two ends of the hollow pipe are provided with pipe plugs, and weight increasing materials are filled in the pipe.

5. The electric type-II opening-closing sealing and heat-insulating device for the livestock negative pressure fan as claimed in claim 4, characterized in that: the weight material is a solid material.

6. The electric type-II opening-closing sealing and heat-insulating device for the livestock negative pressure fan as claimed in claim 4, characterized in that: the hollow pipe is a PVC flame-retardant hollow pipe or a galvanized steel pipe; the solid tube is made of round steel.