CN219222745U

CN219222745U - Bidirectional ventilation device for underground building

Info

Publication number: CN219222745U
Application number: CN202320072349.0U
Authority: CN
Inventors: 潘宁; 张爵霖
Original assignee: Guangdong Runda Construction Engineering Co ltd
Current assignee: Guangdong Runda Construction Engineering Co ltd
Priority date: 2023-01-10
Filing date: 2023-01-10
Publication date: 2023-06-20
Anticipated expiration: 2033-01-10

Abstract

The utility model relates to the technical field of building ventilation pipelines, in particular to a bidirectional ventilation device for an underground building; the square tube comprises a square tube and a movable plate, wherein a plurality of guide rods are arranged on the inner side walls of two sides of the square tube, the movable plate comprises a rectangular steel plate and a plurality of through holes matched with the guide rods, a center column is arranged in the middle of two ends of the square tube, limiting blocks are welded on the left side and the right side of the center column, the limiting blocks extend into the square tube, a first joint and a second joint are respectively welded on the front end and the rear end of the right side of the square tube, and a third joint and a fourth joint are respectively welded on the front end and the rear end of the left side of the square tube; the square pipe is divided into two basically independent channels through the movable plate, the two channels can ventilate in the same direction and also can ventilate in opposite directions, and the movable plate can be pushed to the other side by the air pressure of the channel on one side with larger air pressure in the opposite direction ventilation process, so that one side with larger air pressure occupies larger passing space, the effect of reducing wind resistance and reducing wind energy is achieved, and the two-way ventilation device is very suitable for two-way ventilation operation of underground buildings.

Description

Bidirectional ventilation device for underground building

Technical Field

The utility model relates to the technical field of building ventilation pipelines, in particular to a bidirectional ventilation device for an underground building.

Background

Air pipes are often used as ventilation ducts in underground buildings such as underground garages. In the case of so-called ductwork, a square tube made of tinplate is provided with a fan at one end thereof, and ventilation is achieved by blowing in or exhausting air. When the current air pipe only has one-way air flow in the pipe at a certain moment and two operations of penetrating fresh air and discharging waste gas are needed to be carried out in an underground building (namely, the two-way ventilation), the current air pipe cannot meet the use requirement.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a bidirectional ventilation device for an underground building.

The technical scheme of the utility model is as follows:

the utility model provides a two-way ventilation device of underground construction, it includes square pipe and fly leaf, be provided with a plurality of guide bars on the intraductal both sides inside wall of square, the fly leaf includes the steel sheet of rectangle and a plurality of supporting through-hole with the guide bar, the guide bar transversely passes the through-hole, the fly leaf can be along the guide bar about in square pipe, square pipe both ends middle part is provided with the center pillar, center pillar left and right sides welding has the stopper, the stopper extends to square intraductal, distance between the stopper of both ends is less than the length of fly leaf, distance between the homonymy limit piece is greater than the thickness of fly leaf, the square pipe right side front and back end has welded first joint respectively, the second joint, the welding has third to connect and fourth to connect respectively around the square pipe left side.

Further, the sealing ring is sleeved on the periphery of the steel plate of the movable plate, friction between the steel plate and the square tube and friction between the steel plate and the middle column are reduced, and air tightness is improved.

Further, the square tube adopts a plate structure of an outer metal layer, a fireproof material layer and an inner metal layer which are sequentially overlapped, wherein the outer metal layer and the inner metal layer are made of tinplate, so that the square tube is convenient to process and mold, and the fireproof material layer is made of a rock wool layer coated by phenolic resin, so that the fireproof performance of the square tube is improved, and the noise is reduced.

In some preferred embodiments, the first joint, the second joint, the third joint and the fourth joint are all provided with clamps and are provided with fire valves through the clamps, so that the fire prevention effect in the air pipe is achieved.

Further, the periphery cover of clamp is equipped with tuber pipe clamp hoisting structure, the installation of whole structure of being convenient for.

The beneficial effects of the utility model are as follows: the square pipe is divided into two basically independent channels through the movable plate, the two channels can ventilate in the same direction and also can ventilate in opposite directions, and the movable plate can be pushed to the other side by the air pressure of the channel on one side with larger air pressure in the opposite direction ventilation process, so that one side with larger air pressure occupies larger passing space, the effect of reducing wind resistance and reducing wind energy is achieved, and the two-way ventilation device is very suitable for two-way ventilation operation of underground buildings.

Drawings

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

fig. 2 is a schematic structural view (side view) of the movable plate.

In the figure, 1, square tube; 2. a guide rod; 3. a movable plate; 4. a center column; 5. a limiting block; 6. a first joint; 7. a second joint; 8. a third joint; 9. a fourth joint; 10. a steel plate; 11. a through hole; 12. and (3) sealing rings.

Detailed Description

The following is a further description of embodiments of the utility model, taken in conjunction with the accompanying drawings:

example 1

As shown in figures 1 and 2, a bidirectional ventilation device for underground construction comprises a square tube 1 and a movable plate 3, wherein a plurality of guide rods 2 are arranged on the inner side walls of two sides in the square tube 1, the movable plate 3 comprises a rectangular steel plate 10 and a plurality of through holes 11 matched with the guide rods 2, the guide rods 2 transversely penetrate through the through holes 11, the movable plate 3 can move left and right in the square tube 1 along the guide rods 2, center posts 4 are arranged in the middle of two ends of the square tube 1, limiting blocks 5 are welded on the left side and the right side of the center posts 4, the limiting blocks 5 extend into the square tube 1, the distance between the limiting blocks 5 at two ends is smaller than the length of the movable plate 3, the distance between the limiting blocks 5 at the same side is larger than the thickness of the movable plate 3, a first joint 6 and a second joint 7 are welded at the front end and the rear end of the right side of the square tube 1, and a third joint 8 and a fourth joint 9 are welded at the front end and the rear end of the left side of the square tube 1 respectively. The periphery of the steel plate 10 of the movable plate 3 is sleeved with a sealing ring 12. The square tube 1 adopts a plate structure of an outer metal layer, a fireproof material layer and an inner metal layer which are sequentially overlapped, wherein the outer metal layer and the inner metal layer are both made of tinplate, and the fireproof material layer is made of a rock wool layer coated by phenolic resin.

The working principle of the utility model is as follows:

1) When the air is blown in two directions (i.e. in the same direction), the first connector and the third connector are connected with the fan, the utility model extends into the underground building, the second connector and the fourth connector are connected with the air outlet, the fan is blown in the forward direction when the air is blown in the inward direction, and the fan is blown in the reverse direction when the air is exhausted out.

2) When two-way ventilation is carried out, the first connector and the fourth connector are respectively connected into the fans, the fans of the first connector realize inward ventilation by forward air supply, the fans of the fourth connector realize outward exhaust by forward air supply, and the air supply efficiency of the two fans is adjusted according to the proportion requirements of ventilation and exhaust. For example, when the parking lot is used for exhausting moisture, the air supply efficiency of the fan of the fourth joint is increased due to the fact that the air pressure on the side is obviously increased, the other side of the movable plate net is pushed, so that a larger ventilation space is obtained, and the ventilation space is increased under the condition of the same fan power, so that the larger ventilation efficiency can be necessarily obtained.

Example 2

The first joint, the second joint, the third joint and the fourth joint are all provided with the clamp and are provided with the fire damper through the clamp. And the periphery of the clamp is sleeved with an air pipe clamp hoisting structure. The clamp, the fire damper and the air pipe clamp hoisting structures are all of the prior art and are not repeated. Other structures of this embodiment are the same as those of embodiment 1.

The foregoing embodiments and description have been provided merely to illustrate the principles and best modes of carrying out the utility model, and various changes and modifications can be made therein without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. The utility model provides a two-way ventilation device of underground construction, a serial communication port, it includes square pipe and fly leaf, be provided with a plurality of guide bars on the intraductal both sides inside wall of square, the fly leaf includes the steel sheet of rectangle and a plurality of supporting through-hole with the guide bar, the guide bar transversely passes the through-hole, square pipe both ends middle part is provided with the center pillar, the welding of center pillar left and right sides has the stopper, the stopper extends to the intraductal distance of extending in both ends stopper is less than the length of fly leaf, distance between the homonymy stopper is greater than the thickness of fly leaf, the welding has first joint respectively around the side of square pipe, the second connects, the welding has third to connect and fourth to connect respectively around the side of square pipe left side.

2. A bi-directional ventilation device for an underground building as claimed in claim 1, wherein: and a sealing ring is sleeved on the periphery of the steel plate of the movable plate.

3. A bi-directional ventilation device for an underground building as claimed in claim 2, wherein: the square tube adopts a plate structure of an outer metal layer, a fireproof material layer and an inner metal layer which are sequentially overlapped, wherein the outer metal layer and the inner metal layer are made of tinplate, and the fireproof material layer is made of a rock wool layer coated by phenolic resin.

4. A bi-directional ventilation device for an underground building according to claim 3, wherein: the first joint, the second joint, the third joint and the fourth joint are all provided with the clamp and are provided with the fire damper through the clamp.

5. A bi-directional ventilation device for an underground building as claimed in claim 4, wherein: and the periphery of the clamp is sleeved with an air pipe clamp hoisting structure.