CN220337673U

CN220337673U - Selectively opened ventilating duct

Info

Publication number: CN220337673U
Application number: CN202322052884.2U
Authority: CN
Inventors: 高凯; 曹亚鹏; 李国玉; 李昌清; 张旭亮; 应赛
Original assignee: Northwest Institute of Eco Environment and Resources of CAS
Current assignee: Northwest Institute of Eco Environment and Resources of CAS
Priority date: 2023-08-01
Filing date: 2023-08-01
Publication date: 2024-01-12
Anticipated expiration: 2033-08-01

Abstract

The utility model discloses a selectively opened ventilating duct, which comprises a ventilating duct body and a control mechanism arranged in the ventilating duct body, wherein: the two ends of the ventilating duct body are respectively provided with an air inlet and an air outlet, and the control mechanism is positioned between the air inlet and the air outlet; the control mechanism comprises a rotating shaft and a baffle plate fixed on the rotating shaft and rotating along with the rotating shaft, the rotating shaft is rotationally connected to the inner wall of the ventilating duct body, the edge of the baffle plate is close to the inner wall of the ventilating duct body, a gap is reserved between the baffle plate and the baffle plate, an elastomer is arranged on the baffle plate and is located on one side close to the gap, and a medium with thermal expansion and cold contraction is filled in the elastomer. The utility model can selectively introduce cold air and has wide application range.

Description

Selectively opened ventilating duct

Technical Field

The utility model relates to the technical field of ventilation equipment, in particular to a selectively opened ventilation pipeline.

Background

The ventilating duct can introduce the air that flows in the external environment into a certain fixed operation environment, ventilate the operation, ventilating duct among the prior art is simple mechanical structure mostly, do not have the restriction to the air of letting in, can't carry out selective work, just open when only external air temperature is lower for example, perhaps ventilating duct among the prior art accomplishes the selective opening through electrical system, utilize temperature sensor to detect external environment's temperature, real-time with temperature transfer for control system, control system control is located the switch of valve in the pipeline, when the temperature is less than the threshold value, the valve is opened, when the temperature is higher than the threshold value, the valve is closed, however electrical system's introduction has increased ventilating duct's cost.

Disclosure of Invention

The utility model aims to provide a selectively opened ventilating duct aiming at the technical defects that the starting and stopping of the ventilating duct in the prior art are not selective or the starting and stopping costs are high through the control of an electric control system.

The technical scheme adopted for realizing the purpose of the utility model is as follows:

the utility model provides a selectively opened ventilation pipeline, includes the ventilation pipeline body and sets up the inside control mechanism of ventilation pipeline body, wherein:

the two ends of the ventilating duct body are respectively provided with an air inlet and an air outlet, and the control mechanism is positioned between the air inlet and the air outlet;

the control mechanism comprises a rotating shaft and a baffle plate fixed on the rotating shaft and rotating along with the rotating shaft, the rotating shaft is rotationally connected to the inner wall of the ventilating duct body, the edge of the baffle plate is close to the inner wall of the ventilating duct body, a gap is reserved between the baffle plate and the baffle plate, an elastomer is arranged on the baffle plate and is located on one side close to the gap, and a medium with thermal expansion and cold contraction is filled in the elastomer.

In the above technical scheme, the elastomer is made of PVC, polyvinylidene chloride, vinyl acetate copolymer, POM, polytrifluoroethylene, PC, PA or PMMA.

In the above technical solution, the medium filled in the elastomer is air, oxygen, hydrogen or carbon dioxide.

In the above technical scheme, the top of ventilation pipeline body is equipped with the horn-shaped port that is linked together with it that the level set up, the big mouth end of horn-shaped port is the air intake, be fixed with the orifice plate on the air intake.

In the above technical scheme, the bottom surface of the horn-shaped port is obliquely arranged, and a gap is reserved between the bottom surface and the pore plate.

In the above technical scheme, the ventilating duct comprises two juxtaposed ventilating duct bodies, the top of each ventilating duct body is provided with one horn-shaped port, and the opening directions of the two horn-shaped ports are opposite.

In the above technical solution, the cross section of the ventilation duct body is square.

In the above technical scheme, the baffle is square, two face immediately adjacent air pipe body's inner wall around the baffle, keep away from on the baffle one edge of pivot and air pipe body's inner wall leave the clearance, the elastomer is fixed to be set up the baffle top is close to one side of this edge.

In the above technical scheme, the rotating shaft is rotatably arranged on the inner wall between the two parallel ventilating duct bodies, two baffle plates are respectively fixed on two sides of the rotating shaft, and each baffle plate is provided with an elastic body.

In the above technical scheme, a connecting shaft is fixed on two sides of the rotating shaft respectively, the connecting shaft is rotatably connected to the inner wall of the ventilating duct body, and a torsion spring is sleeved on the connecting shaft.

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

1. the utility model discloses a fill the elastomer control air pipe who has expend with heat and contract with cold medium has reduced air pipe's cost to the selectivity of temperature, and can stabilize effectual operation.

2. The utility model has simple structure and wide application range, can be applied to any working environment needing cold air, can selectively guide the cold air into the working environment, and reduces the temperature of the working environment.

Drawings

Fig. 1 is a schematic diagram of the structure of the present utility model.

Fig. 2 is a schematic view of a partial cross-sectional structure of the present utility model.

In the figure: the air-conditioning system comprises a 1-ventilation pipeline body, a 2-horn-shaped port, a 3-orifice plate, a 4-gap, a 5-rotating shaft, a 6-connecting shaft, a 7-torsion spring, an 8-baffle, a 9-elastomer, a 10-air inlet and an 11-air outlet.

Detailed Description

The utility model is described in further detail below with reference to the drawings and the specific examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Example 1

A selectively openable ventilation duct, comprising a ventilation duct body 1 and a control mechanism disposed inside the ventilation duct body 1, wherein:

the two ends of the ventilating duct body 1 are respectively provided with an air inlet 10 and an air outlet 11, and the control mechanism is positioned between the air inlet 10 and the air outlet 11;

the control mechanism comprises a rotating shaft 5 and a baffle plate 8 fixed on the rotating shaft 5 and rotating along with the rotating shaft 5, the rotating shaft 5 is rotationally connected to the inner wall of the ventilating duct body 1, the edge of the baffle plate 8 is close to the inner wall of the ventilating duct body 1, a gap is reserved between the baffle plate and the baffle plate, an elastic body 9 is arranged on the baffle plate 8, the elastic body 9 is located at one side close to the gap, and a medium with thermal expansion and cold contraction is filled in the elastic body 9.

The air that flows enters into the air pipe body 1 inside through the air intake 10, promotes baffle 8, and baffle 8 revolutes the rotation of shaft 5, and when the air that gets into is cold air, medium shrinkage in the elastomer 9, elastomer 9 shrink, baffle 8 are rotatory, and the wind channel of air pipe body 1 inside is opened, and air pipe body 1 is in ventilation state, and when the air that gets into through air intake 10 is hot air, medium thermal expansion in the elastomer 9, elastomer 9 shutoff baffle 8 with clearance between the inner wall of air pipe body 1, and there is great frictional force between elastomer 9 and the inner wall of air pipe body 1, and the air that flows can't promote baffle 8 rotation, and the wind channel of air pipe body 1 inside is closed.

Example 2

This example further optimizes the elastomer 9 based on example 1.

The elastomer 9 is made of PVC, polyvinylidene chloride, vinyl acetate copolymer, POM, poly (chlorotrifluoroethylene) and PC, PA, PMMA, and has obvious thermal expansion and cold contraction.

The medium filled in the elastomer 9 is air, oxygen, hydrogen and carbon dioxide, and the elastomer has the functions of thermal expansion and cold contraction.

Example 3

In this embodiment, the structure of the air intake 10 is further optimized based on embodiment 1.

Preferably, a horizontally arranged trumpet-shaped port 2 communicated with the ventilation pipeline body 1 is arranged at the top of the ventilation pipeline body 1, the large opening end of the trumpet-shaped port 2 is the air inlet 10, and the orifice plate 3 is fixed on the air inlet 10.

The flowing air enters the ventilation pipeline body 1 through the horn-shaped port 2 after passing through the orifice plate 3, so that fallen leaves or other sundries can be prevented from entering the ventilation pipeline body 1, and the ventilation pipeline body 1 is prevented from being blocked by the sundries.

Preferably, the bottom surface of the trumpet-shaped port 2 is obliquely arranged, a gap 4 is reserved between the bottom surface and the pore plate 3, when rainwater enters the trumpet-shaped port 2 through the pore plate 3, the inclined bottom surface has a diversion effect, and the rainwater flows out through the gap 4 to prevent the rainwater from entering the ventilation pipeline body 1, so that the ventilation environment is kept clean.

Example 4

The overall arrangement of the ventilation duct is further optimized in this embodiment.

Preferably, the ventilation duct comprises two parallel ventilation duct bodies 1, one of the trumpet-shaped ports 2 is arranged at the top of each ventilation duct body 1, and the opening directions of the two trumpet-shaped ports 2 are opposite. This allows wind in multiple directions to enter the ventilation duct.

Preferably, the cross section of the ventilation pipeline body 1 is square, the baffle 8 is square, the front surface and the rear surface of the baffle 8 are closely adjacent to the inner wall of the ventilation pipeline body 1, a gap is reserved between one edge of the baffle 8 far away from the rotating shaft and the inner wall of the ventilation pipeline body 1, and the elastic body 9 is fixedly arranged on one side of the top of the baffle 8 close to the edge.

Still further, the rotation of the shaft 5 is set on the inner wall between two parallel ventilation duct bodies 1, two baffles 8 are respectively fixed on two sides of the shaft 5, two baffles 8 are respectively located in two ventilation duct bodies 1, an elastic body 9 is respectively arranged on each baffle 8, and when the flowing air pushes the baffles 8 to rotate, the two ventilation duct bodies 1 are in an open state.

Furthermore, a connecting shaft 6 is respectively fixed at two sides of the rotating shaft 5, the connecting shaft 6 is rotatably connected to the inner wall of the ventilating duct body 1, and a torsion spring 7 is sleeved on the connecting shaft 6. When the flowing air pushes the baffle plate 8 to rotate, the torsion spring 7 stores force, and when the flowing air is insufficient to push the baffle plate 8 to rotate, the baffle plate 8 is reset under the action of resilience force of the torsion spring 7.

Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature's illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "under" other elements or features would then be oriented "over" the other elements or features. Thus, the exemplary term "lower" may encompass both an upper and lower orientation. The device may be otherwise positioned (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Moreover, relational terms such as "first" and "second", and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.

The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Claims

1. The utility model provides a selectively opened ventilation pipeline which characterized in that, is in including ventilation pipeline body and setting up the inside control mechanism of ventilation pipeline body, wherein:

2. The selectively openable vent pipe of claim 1 wherein said elastomer is PVC, polyvinylidene chloride, vinyl acetate copolymer, POM, polytrifluoroethylene, PC, PA or PMMA.

3. The selectively openable vent pipe of claim 1 wherein said elastomer filled medium is air, oxygen, hydrogen or carbon dioxide.

4. The selectively openable vent pipe of claim 1 wherein the top of said vent pipe body has a horizontally disposed flared port in communication therewith, the flared port having a large mouth end for said air inlet, said air inlet having an orifice plate secured thereto.

5. The selectively openable vent conduit of claim 4 wherein a bottom surface of said flared port is inclined, said bottom surface being spaced from said orifice plate.

6. The selectively openable vent pipe of claim 4 wherein said vent pipe comprises two juxtaposed vent pipe bodies, each vent pipe body having a top portion provided with one of said flared ports, the openings of the two flared ports being in opposite directions.

7. The selectively openable vent conduit of claim 6 wherein said vent conduit body is square in cross-section.

8. The selectively openable vent pipe of claim 7 wherein said baffle is square, front and rear faces of said baffle are immediately adjacent to the inner wall of the vent pipe body, a gap is left between an edge of said baffle remote from said axis of rotation and the inner wall of the vent pipe body, and said elastomer is fixedly disposed on the side of the top of said baffle adjacent to said edge.

9. The selectively openable vent pipe of claim 6 wherein said shaft is rotatably disposed on the inner wall between two juxtaposed vent pipe bodies, and wherein a baffle is secured to each of the two sides of said shaft, each baffle having an elastomer disposed thereon.

10. The selectively openable ventilation pipeline according to claim 1, wherein a connecting shaft is respectively fixed to both sides of the rotating shaft, the connecting shaft is rotatably connected to an inner wall of the ventilation pipeline body, and a torsion spring is sleeved on the connecting shaft.