CN215521338U

CN215521338U - I-type electric opening and closing sealing and heat-insulating device for livestock negative pressure fan

Info

Publication number: CN215521338U
Application number: CN202121804967.7U
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 I type electronic switching sealed heat preservation device, the one end of several location direction joint is fixed on whole soft cotton quilt curtain both sides face at interval symmetry respectively, the several location direction joint other end of both sides sets up respectively in two cotton quilt curtain guide frame chambeies, the fixed bottom counter weight pole in whole soft cotton quilt curtain bottom surface, whole soft cotton is twined on electronic book curtain device by the top of curtain, electronic book curtain device drives whole soft cotton quilt and realizes sliding from top to bottom on two cotton quilt curtain guide frames. The device adopts an independent driving mechanism to carry out opening and closing operations, and does not consume wind energy generated by a fan; the fan can be completely opened and closed, the cross section area of the air inlet is not invaded, disturbance is not generated to air inlet and air outlet airflow, noise is not generated, and the efficiency of the fan can be improved. 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.

Description

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

Technical Field

The utility model relates to the technical field of fans, in particular to an I-type electric opening and closing sealing heat preservation device 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 preserve heat 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 prevention sealing heat preservation devices in the prior art are not tight in sealing and occupy the area of an air circulation section, and provides an I-type electric opening-closing sealing heat preservation device for a livestock negative pressure fan. The curtain of the device is fundamentally improved on the basis of the existing roller shutter door.

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 I-type electric opening and closing sealing heat preservation device for a livestock negative pressure fan comprises a quilt curtain guide frame, an integral soft quilt curtain and an electric roller shutter device, wherein the electric roller shutter device is arranged above the two spaced quilt curtain guide frames, and the I-type electric opening and closing sealing heat preservation device further comprises a positioning guide joint and a bottom counterweight rod;

one ends of the positioning guide joints are respectively fixed on two side surfaces of the whole soft cotton quilt curtain at intervals and symmetrically, the other ends of the positioning guide joints on two sides are respectively arranged in the cavities of the two cotton quilt curtain guide frames, the bottom counterweight 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 device above the curtain, and the electric rolling device drives the whole soft cotton quilt curtain to slide up and down on the two cotton quilt curtain guide frames.

Compared with the prior art, 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.

The clearance fit structure of the trapezoidal surfaces II of the positioning guide joints and the trapezoidal surfaces I in the cotton quilt curtain guide frame cavity and the clearance fit structure of the protruding guide rails on two sides of the opening of the cotton quilt curtain guide frame and the positioning guide chutes on two sides of the positioning guide joints ensures that the whole soft cotton quilt curtain is stable and fast in full-open or full-close action and ensures that the positioning guide joints cannot be separated from the cotton quilt curtain guide frame.

The device can meet the requirement of gapless sealing, and the sealing and heat-preserving effect is very excellent.

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 diagram of structure C of fig. 3.

Detailed Description

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

as shown in fig. 1 to 4, a type i 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 and an electric rolling curtain device 3, and further comprises a bottom counterweight rod 5 and a positioning guide joint 4;

the section of the cotton quilt curtain guide frame 1 is a rectangular C-shaped section, the two sides of the opening of the cotton quilt curtain guide frame 1 are provided with protruding guide rails 1-1, and the inner surface of a section cavity corresponding to the opening is provided with a trapezoidal surface I1-2.

The section of the positioning guide joint 4 is a rectangular section, one end of the positioning guide joint is an open section, two sides of the opening are provided with symmetrical raised fixing clips 4-1, the other end of the opening is a trapezoidal surface II 4-2, and two side walls of the section between the trapezoidal surface II 4-2 and the raised fixing clips 4-1 are symmetrically provided with positioning guide chutes 4-3.

Two side surfaces of an integral soft cotton quilt curtain 2 are respectively inserted into a plurality of opening-shaped sectional materials of the positioning guide joints 4, the protrusion fixing clamps 4-1 of the positioning guide joints 4 are respectively clamped on the front surface and the rear surface of the integral soft cotton quilt curtain 2, each positioning guide joint 4 is fixed on the integral soft cotton quilt curtain 2, and the positioning guide joints 4 on the two sides are symmetrically arranged at intervals.

The trapezoidal surfaces II 4-2 ends of a plurality of positioning guide joints 4 fixed at the two sides of the whole soft cotton quilt curtain 2 are respectively arranged in the cavities of two cotton quilt curtain guide frames 1 and are in clearance fit with the trapezoidal surfaces I1-2 of the cotton quilt curtain guide frames 1, the raised guide rails 1-1 at the two sides of the opening of the cotton quilt curtain guide frame 1 are respectively inserted into the positioning guide chutes 4-3 at the two sides of the plurality of positioning guide joints 4 and are in clearance fit,

the integral soft cotton quilt is wound on the electric roller shutter device 3 above the curtain 2, and the bottom counterweight rod 5 is fixed on the bottom surface of the integral soft cotton quilt 2.

The whole soft cotton quilt curtain 2 is a waterproof flame-retardant surface bag shape, and waterproof flame-retardant filaments or heat-insulating fibers are filled in the surface bag for sewing or hot-press molding.

When the device is used, the electric roller shutter device 3 drives the ends of the trapezoidal surfaces II 4-2 of the plurality of positioning guide joints 4 and the positioning guide chutes 4-3 at the two sides of the whole soft cotton quilt curtain 2 to be matched with the trapezoidal surfaces I1-2 in the cavity of the cotton quilt curtain guide frame 1 and the protruding guide rails 1-1 to realize up-and-down sliding, so that 100% of full opening or full closing actions of the whole soft cotton quilt curtain 2 are realized, and the requirements of gapless sealing and the sealing and heat preservation effects are achieved.

The electric opening and closing sealing heat preservation device is used for the livestock negative pressure fan, and when the device is opened, the air inlet and the air outlet of the fan are not completely shielded, so that 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 bottom 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 the pipe plugs, the weight increasing materials are filled in the pipe, and the weight increasing materials are increased or decreased in the pipe to optimize the weight balancing effect.

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

The weight material is a solid material.

The device is arranged at the opening of the environment-controlled negative pressure fan arranged in the livestock and poultry breeding shed, and can be arranged at the air inlet and the air outlet.

Claims

1. The utility model provides a poultry negative pressure fan seals heat preservation device with I type electronic switching, 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: the device also comprises a positioning guide joint (4) and a bottom counterweight rod (5);

one ends of the positioning guide joints (4) are symmetrically fixed on two side faces of the whole soft quilt curtain (2) at intervals, the other ends of the positioning guide joints (4) on two sides are arranged in cavities of the two quilt curtain guide frames (1), a bottom counterweight rod (5) is fixed on the bottom face of the whole soft quilt curtain (2), the upper portion of the whole soft quilt curtain (2) is wound on the electric rolling curtain device (3), and the electric rolling curtain device (3) drives the whole soft quilt curtain (2) to slide up and down on the two quilt curtain guide frames (1).

2. The I-type electric opening-closing sealing and heat-insulating device for the livestock negative pressure fan as claimed in claim 1, characterized in that: the section of the cotton quilt curtain guide frame (1) is a rectangular C-shaped section, the two sides of the opening of the cotton quilt curtain guide frame (1) are provided with protruding guide rails (1-1), and the inner surface of a section cavity corresponding to the opening is a trapezoidal surface I (1-2).

3. The I-type electric opening-closing sealing and heat-insulating device for the livestock negative pressure fan as claimed in claim 1, characterized in that: the cross section of the positioning guide joint (4) is a rectangular section, one end of the positioning guide joint is an opening-shaped section, two sides of the opening are provided with symmetrical protrusion fixing clamps (4-1), the other end of the opening is a trapezoidal surface II (4-2), and positioning guide sliding grooves (4-3) are symmetrically arranged on two side walls of the section between the trapezoidal surface II (4-2) and the protrusion fixing clamps (4-1).

4. The I-type electric opening-closing sealing and heat-insulating device for the livestock negative pressure fan as claimed in claim 1, characterized in that: the fixing structure of the integral soft cotton quilt curtain (2) and the plurality of positioning guide joints (4) is that two side surfaces of the integral soft cotton quilt curtain (2) are respectively inserted into the opening-shaped section bars of the plurality of positioning guide joints (4), and the protruding fixing clamps (4-1) at two sides of the opening are respectively clamped on the front surface and the rear surface of the integral soft cotton quilt curtain (2).

5. The I-type electric opening-closing sealing and heat-insulating device for the livestock negative pressure fan as claimed in claim 1, characterized in that: the matching structure of the plurality of positioning guide joints (4) and the two quilt curtain guide frames (1) is that trapezoidal surfaces II (4-2) of the plurality of positioning guide joints (4) are respectively arranged in the cavity of the quilt curtain guide frame (1) and are in clearance fit with the trapezoidal surfaces I (1-2) of the quilt curtain guide frame (1), and the protruding guide rails (1-1) on two sides of the opening of the two quilt curtain guide frames (1) are respectively inserted into the positioning guide chutes (4-3) on two sides of the plurality of positioning guide joints (4) and are in clearance fit.

6. The I-type electric opening-closing sealing and heat-insulating device for the livestock negative pressure fan as claimed in claim 1, characterized in that: the bottom 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.

7. The I-type electric opening-closing sealing and heat-insulating device for the livestock negative pressure fan as claimed in claim 6, characterized in that: the weight material is a solid material.

8. The I-type electric opening-closing sealing and heat-insulating device for the livestock negative pressure fan as claimed in claim 6, 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.

9. The I-type electric opening-closing sealing and heat-insulating device for the livestock negative pressure fan as claimed in claim 1, characterized in that: the integral soft cotton quilt curtain (2) is in a waterproof flame-retardant surface bag shape, and waterproof flame-retardant filaments or heat-insulating fibers are filled in the surface bag and sewn or hot-pressed and molded.