Self-adaptive opening and closing tuyere structure

Abstract

The utility model provides a self-adaptive opening and closing tuyere structure, and belongs to the technical field of building ventilation systems. Comprising an air pipe and an air door, the air door comprises an outer cover, an inner barrel and a guide rod, the outer cover covers an opening of the air pipe, the inner barrel is slidably connected to the inner wall of the air pipe, the upper end of the guide rod is fixed to the middle of the air door, a diaphragm spring of a porous structure is further arranged in the air pipe, and the outer edge of the diaphragm spring is fixed to the inner wall of the air pipe. The middle of the diaphragm spring is fixed to an installation head, the installation head is fixedly connected with the lower end of the guide rod, transition is achieved between the upper end of the inner cylinder and the inner wall of the outer cover through an arc-shaped connecting part, and a plurality of air openings are formed in the connecting part. The device has the advantages of high reliability and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of building ventilation systems and relates to an adaptive opening and closing air outlet structure. Background Art

[0002] The air outlets of the ventilation system are generally equipped with valves to control opening and closing. The valves are generally controlled by driving parts, which have defects such as unreliability, need for wiring, and high energy consumption. Due to environmental restrictions, the adaptive opening and closing air outlet structure can drive the valve to open according to the wind force of the air outlet, which solves the above problems. However, this will inevitably increase the ventilation resistance and there is a problem of poor sensitivity. Utility Model Content

[0003] The purpose of the utility model is to provide an adaptive opening and closing tuyere structure in view of the above-mentioned problems existing in the prior art. The technical problem to be solved by the utility model is how to improve the exhaust efficiency.

[0004] The purpose of the utility model can be achieved through the following technical solutions: an adaptive opening and closing air outlet structure, characterized in that it includes an air duct and an air door, the air door includes an outer cover, an inner cylinder and a guide rod, the outer cover is arranged outside the opening of the air duct, the inner cylinder is slidably connected to the inner wall of the air duct, the upper end of the guide rod is fixed to the middle part of the air door, and a diaphragm spring with a porous structure is also arranged in the air duct, the outer edge of the diaphragm spring is fixed to the inner wall of the air duct, the middle part of the diaphragm spring is fixed to a mounting head, the mounting head is fixedly connected to the lower end of the guide rod, the upper end of the inner cylinder and the inner wall of the outer cover are transitioned by an arc-shaped connecting portion, and a plurality of air outlets are opened on the connecting portion.

[0005] Furthermore, a plurality of ventilation holes are provided on the air duct, and the ventilation holes are blocked by the inner tube when the damper closes the air duct opening.

[0006] Furthermore, a positioning sleeve is slidably connected to the guide rod, and the positioning sleeve is fixedly connected to the inner wall of the air duct through a plurality of spokes, and a magnetic repulsive structure is arranged between the positioning sleeve and the mounting head.

[0007] In order to increase the ventilation efficiency, after the airflow in the air duct drives the outer cover to move upward, the airflow can be discharged outward through the air outlet, the opening between the outer cover and the end of the air duct formed by the upward movement of the outer cover. In addition, when the outer cover moves upward, the inner tube also moves upward, so that the ventilation hole is the same as the inner cavity of the air duct, serving as the second exhaust channel. Therefore, this solution can form a larger external ventilation area when the airflow pushes the damper to move up a small height.

[0008] In addition, in order to reduce the resistance to the upward movement of the damper, a magnetic repulsion structure is set between the mounting head and the positioning sleeve to offset part of the gravity of the damper. That is to say, under normal circumstances, the damper is in a closed state under its own weight, and when the airflow drives the damper to move upward, it is not necessary to overcome the entire weight of the damper. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the adaptive opening and closing tuyere structure in a closed state.

[0010] Figure 2 It is a structural schematic diagram of the adaptive opening and closing tuyere structure in the open state.

[0011] In the figure, 1, air duct; 2, outer cover; 3, inner tube; 4, guide rod; 5, diaphragm spring; 6, mounting head; 7, connecting part; 8, air outlet; 9, ventilation hole; 10, positioning sleeve. DETAILED DESCRIPTION

[0012] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0013] like Figure 1 and Figure 2 The adaptive opening and closing air outlet structure shown includes an air duct 1 and an air damper, and the air damper includes an outer cover 2, an inner cylinder 3 and a guide rod 4. The outer cover 2 is arranged outside the opening of the air duct 1, and the inner cylinder 3 is slidably connected to the inner wall of the air duct 1. The upper end of the guide rod 4 is fixed to the middle part of the air damper. A diaphragm spring 5 with a porous structure is also arranged in the air duct 1. The diaphragm spring 5 can improve the reliability of closing the air damper. The outer edge of the diaphragm spring 5 is fixed to the inner wall of the air duct 1, and the middle part of the diaphragm spring 5 is fixed to a mounting head 6. The mounting head 6 is fixedly connected to the lower end of the guide rod 4. The upper end of the inner cylinder 3 and the inner wall of the outer cover 2 are transitioned by an arc-shaped connecting portion 7, and a plurality of air outlets 8 are opened on the connecting portion 7.

[0014] A plurality of ventilation holes 9 are provided on the air duct 1 , and the ventilation holes 9 are blocked by the inner tube 3 when the damper closes the opening of the air duct 1 .

[0015] A positioning sleeve 10 is slidably connected to the guide rod 4 . The positioning sleeve 10 is fixedly connected to the inner wall of the air duct 1 through a plurality of spokes. A magnetic repulsive structure is provided between the positioning sleeve 10 and the mounting head 6 .

[0016] In order to increase the ventilation efficiency, after the airflow in the air duct 1 drives the outer cover 2 to move upward, the airflow can be discharged outward through the air outlet 8, the opening between the outer cover 2 and the end of the air duct 1 formed by the upward movement of the outer cover 2. In addition, when the outer cover 2 moves upward, the inner tube 3 also moves upward, so that the ventilation hole 9 is the same as the inner cavity of the air duct 1, serving as the second exhaust channel. Therefore, this solution can form a larger external ventilation area when the airflow pushes the damper to move up a small height.

[0017] In addition, in order to reduce the resistance to the upward movement of the damper, a magnetic repulsion structure is set between the mounting head 6 and the positioning sleeve 10 to offset part of the gravity of the damper. That is to say, under normal circumstances, the damper is in a closed state under its own weight, and when the airflow drives the damper to move upward, it is not necessary to overcome the entire weight of the damper.

[0018] The specific embodiments described herein are merely examples of the spirit of the present invention. A person skilled in the art of the present invention may make various modifications or additions to the specific embodiments described or replace them in a similar manner, but this will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An adaptive opening and closing tuyere structure, characterized in that: The air door comprises an outer cover (2), an inner cylinder (3) and a guide rod (4); the outer cover (2) is arranged outside the opening of the air door (1); the inner cylinder (3) is slidably connected to the inner wall of the air door (1); the upper end of the guide rod (4) is fixed to the middle part of the air door; a diaphragm spring (5) with a porous structure is also arranged in the air door (1); the outer edge of the diaphragm spring (5) is fixed to the inner wall of the air door (1); the middle part of the diaphragm spring (5) is fixed to a mounting head (6); the mounting head (6) is connected to the lower end of the guide rod (4); The ends of the inner tube (3) and the outer cover (2) are fixedly connected, the upper end of the inner tube (3) and the inner wall of the outer cover (2) are transitioned through an arc-shaped connecting portion (7), and a plurality of air ports (8) are provided on the connecting portion (7); a plurality of ventilation holes (9) are provided on the air duct (1), and the ventilation holes (9) are blocked by the inner tube (3) when the damper closes the opening of the air duct (1); a positioning sleeve (10) is slidably connected to the guide rod (4), and the positioning sleeve (10) is fixedly connected to the inner wall of the air duct (1) through a plurality of spokes, and a magnetic repulsion structure is provided between the positioning sleeve (10) and the mounting head (6).

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