Air volume adjustable gooseneck ventilator

Abstract

The utility model relates to the technical field of ventilators, and discloses an air volume adjustable gooseneck ventilator which comprises a ventilator body, the air inlet end of the ventilator body is connected with a sealing cover in a rotating mode, a clamping lock is installed on the ventilator body and can be connected with the sealing cover in a clamping mode, a cover plate set is connected into the ventilator body in a rotating mode, the cover plate set comprises a plurality of identical cover plates, and the cover plates are connected with the clamping lock in a clamping mode. The cover plates are fan-shaped, the cover plates can be spliced into a complete disc, the cover plate set can seal the air inlet end of the barrel, a plurality of electric push rods are rotationally installed in the barrel, and the output ends of the electric push rods are correspondingly and rotationally connected with the cover plates. And when the cover plate is opened, no shielding part exists, so that the ventilation efficiency is ensured while the ventilation quantity is adjusted.

Description

Technical Field

[0001] This utility model relates to the field of ventilation duct technology, and more specifically, to a gooseneck ventilation duct with adjustable airflow. Background Technology

[0002] Gooseneck ventilation ducts are common accessories in ship ventilation systems. They are usually installed on the deck and are widely used because their downward curvature, resembling a gooseneck, prevents external moisture from entering the cabin through the ventilation duct.

[0003] During use, it is often necessary to adjust the air intake at the ventilation duct according to the environment to improve the comfort of use. Chinese utility model patent application number 202323654236.0 discloses a marine mushroom-shaped ventilation duct with adjustable air volume. The ventilation duct has two ventilation openings inside. By rotating the valve plate, the overlapping area of ​​the two openings is changed, thereby changing the ventilation volume. However, the setting of two openings results in at least half of the valve plate being covered, which reduces the maximum ventilation volume and reduces the overall efficiency of the ventilation duct. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an adjustable air volume gooseneck ventilation duct.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An adjustable gooseneck ventilation duct includes a duct body, an air inlet end of which is rotatably connected to a cover, a locking device installed on the duct body that can engage with the cover, a cover plate assembly rotatably connected inside the duct body, the cover plate assembly including several identical cover plates, the cover plates being fan-shaped, and the several cover plates can be spliced ​​together to form a complete disc, the cover plate assembly sealing the air inlet end of the duct body, and several electric actuators rotatably installed inside the duct body, the output ends of the several electric actuators being rotatably connected to the several cover plates respectively.

[0007] The present invention is further configured such that: the cover plate group includes a cover plate one, a cover plate three, and a plurality of cover plates two, the cover plate one, the plurality of cover plates two, and the cover plate three are arranged sequentially along the circumference, the two fan-shaped edges of the cover plate one facing away from the electric push rod are provided with sealing strips, the edge of the cover plate two facing away from the cover plate one is provided with sealing strips, the cover plate two adjacent to the cover plate one can abut against the sealing strip on the cover plate one, the cover plate two closest to the cover plate one in sequence is the front end, the other cover plates two can abut against the sealing strip on the cover plate two adjacent to their front end, and the cover plate three can abut against the sealing strips on both sides of the cover plate one and the cover plate two.

[0008] The present invention is further configured such that the sequence of actions when the cover plate group is opened is sequentially from cover plate one to cover plate two, and finally to cover plate three.

[0009] The present invention is further configured such that: the edge of the cover is provided with a locking block, the locking block is U-shaped, the locking includes a rotating rod, one end of the rotating rod is rotatably connected to the outer wall of the cylinder, the other end of the rotating rod is provided with a threaded head, a pressing sleeve is threadedly connected to the threaded head, the rotating rod can be locked into the locking block, and the pressing sleeve can abut against the end face of the locking block.

[0010] The present invention is further configured such that: a sealing gasket is provided on the side of the cap facing the cylinder, and the sealing gasket can seal with the opening of the cylinder.

[0011] The advantages of this utility model are:

[0012] The cylinder is equipped with a cover plate assembly, which consists of several identical cover plates in a fan shape. All the cover plates can be spliced ​​together to form a complete disc. When the cover plate assembly is spliced, it can seal the cylinder. An electric actuator is rotatably installed between the inner side of the cover plate and the inner wall of the cylinder. The electric actuator can drive the cover plate assembly to rotate inside the cylinder, thereby changing the ventilation area of ​​the cylinder. When all the cover plates are open, the ventilation area is the same as the inner cylinder area. There is no obstruction area, which facilitates the adjustment of ventilation volume while ensuring ventilation efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of one embodiment of the present invention;

[0014] Figure 2 For along Figure 1 The cross-sectional view along line AA is shown below;

[0015] Figure 3 For along Figure 1 The BB line cross-section shown;

[0016] Figure 4 for Figure 1 Enlarged view of section C shown;

[0017] In the diagram: 1. Cylinder; 2. Cover; 21. Clamping block; 22. Sealing gasket; 3. Lock; 31. Rotating rod; 32. Threaded head; 33. Pressing sleeve; 4. Cover plate assembly; 41. Cover plate one; 42. Cover plate two; 43. Cover plate three; 5. Electric actuator; 6. Sealing strip. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art described in this application.

[0020] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0021] Please see Figures 1-4 The present invention provides the following technical solution:

[0022] An adjustable gooseneck ventilation duct includes a duct body 1, with a cover 2 rotatably connected to the air inlet end of the duct body 1. A locking device 3 is installed on the duct body 1, which can engage with the cover 2 to fix the cover 2 to the opening of the duct body 1. The locking device 3 is manually operated and can manually close the ventilation opening to ensure the function is realized.

[0023] A sealing gasket 22 is provided on the side of the cover 2 facing the cylinder 1. The sealing gasket 22 can seal with the opening of the cylinder 1, ensuring the sealing performance of the cover 2.

[0024] The edge of the cover 2 is provided with a locking block 21, which is U-shaped. The locking lock 3 includes a rotating rod 31. One end of the rotating rod 31 is rotatably connected to the outer wall of the cylinder 1, and the other end of the rotating rod 31 is provided with a threaded head 32. A pressing sleeve 33 is threadedly connected to the threaded head 32. The rotating rod 31 can be locked into the locking block 21. The pressing sleeve 33 is tightened until it abuts against the end face of the locking block 21, thereby pressing the cover 2 onto the opening of the cylinder 1.

[0025] Inside the cylinder 1, a cover plate assembly 4 is rotatably connected. The cover plate assembly 4 includes several identical cover plates, which are fan-shaped. The cover plates can be spliced ​​together to form a complete disc. The cover plate assembly 4 can seal the air inlet end of the cylinder 1. Inside the cylinder 1, several electric actuators 5 are rotatably installed. The output ends of the electric actuators 5 are rotatably connected to the cover plates. The electric actuators 5 can control the rotation of the cover plates, thereby changing the size of the ventilation area, that is, changing the ventilation volume.

[0026] The cover plate assembly 4 includes a cover plate 41, a cover plate 43, and several cover plates 42. The cover plate 41, the cover plates 42, and the cover plate 43 are arranged in sequence along the circumference. The two fan-shaped edges of the cover plate 41 facing away from the electric push rod 5 are provided with sealing strips 6. The edges of the cover plates 42 facing away from the cover plate 41 are provided with sealing strips 6. The cover plates 42 adjacent to the cover plate 41 can abut against the sealing strips 6 on the cover plate 41. The cover plates 42 that are closest to the cover plate 41 in sequence are the front ends. The other cover plates 42 can abut against the sealing strips 6 on the cover plates 42 adjacent to their front ends. The cover plates 43 can abut against the sealing strips 6 on both sides of the cover plates 41 and the cover plates 42.

[0027] When the cover plate assembly 4 is opened, the sequence of action is from cover plate 1 41 to cover plate 2 42 and finally to cover plate 3 43. When it is closed, the sequence is reversed. That is, when the cover plate assembly 4 is closed, all the covers are pressed on the sealing strip 6, which means that the sealing strip 6 seals the gap between the covers and can prevent moisture from entering.

[0028] Specifically, a cover plate assembly 4 is provided inside the cylinder 1. The cover plate assembly 4 is composed of several identical cover plates, which are fan-shaped. All the cover plates can be spliced ​​together to form a complete disc. When the cover plate assembly is spliced, it can seal the cylinder 1. An electric push rod 5 is rotatably installed between the inner side of the cover plate and the inner wall of the cylinder 1. The electric push rod 5 can drive the cover plate assembly 4 to rotate inside the cylinder 1, thereby changing the ventilation area of ​​the cylinder 1. When all the cover plates are open, the ventilation area is the inner cylinder area of ​​the cylinder 1. There is no covering area, which facilitates the adjustment of ventilation volume while ensuring ventilation efficiency.

[0029] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0030] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0031] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar counterparts and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An adjustable-volume gooseneck ventilation duct, comprising a duct body (1), characterized in that: The air inlet end of the cylinder (1) is rotatably connected to a cover (2). A locking device (3) is installed on the cylinder (1). The locking device (3) can engage with the cover (2). A cover plate assembly (4) is rotatably connected inside the cylinder (1). The cover plate assembly (4) includes several identical cover plates. The cover plates are fan-shaped. Several cover plates can be spliced ​​together to form a complete disc. The cover plate assembly (4) can seal the air inlet end of the cylinder (1). Several electric push rods (5) are rotatably installed inside the cylinder (1). The output ends of several electric push rods (5) are rotatably connected to several cover plates.

2. The adjustable airflow gooseneck ventilation duct according to claim 1, characterized in that: The cover plate assembly (4) includes a cover plate one (41), a cover plate three (43), and several cover plates two (42). The cover plate one (41), several cover plates two (42), and cover plate three (43) are arranged sequentially along the circumference. The two fan-shaped edges of the cover plate one (41) facing away from the electric push rod (5) are provided with sealing strips (6), and the edges of the cover plates two (42) facing away from the cover plate one (41) are provided with sealing strips (6). The cover plate 2 (42) adjacent to the cover plate 1 (41) can abut against the sealing strip (6) on the cover plate 1 (41). The cover plate 2 (42) closest to the cover plate 1 (41) is the front end. The other cover plates 2 (42) can abut against the sealing strip (6) on the cover plate 2 (42) adjacent to their front ends. The cover plate 3 (43) can abut against the sealing strip (6) on both sides of the cover plate 1 (41) and the cover plate 2 (42).

3. The adjustable airflow gooseneck ventilation duct according to claim 2, characterized in that: The sequence of actions when the cover plate group (4) is opened is as follows: from cover plate one (41) to cover plate two (42) and finally to cover plate three (43).

4. The adjustable airflow gooseneck ventilation duct according to claim 1, characterized in that: The edge of the cover (2) is provided with a locking block (21), the locking block (21) is "U" shaped, the locking lock (3) includes a rotating rod (31), one end of the rotating rod (31) is rotatably connected to the outer wall of the cylinder (1), the other end of the rotating rod (31) is provided with a threaded head (32), a pressing sleeve (33) is threadedly connected to the threaded head (32), the rotating rod (31) can be locked into the locking block (21), and the pressing sleeve (33) can abut against the end face of the locking block (21).

5. The adjustable airflow gooseneck ventilation duct according to claim 4, characterized in that: The cap (2) is provided with a sealing gasket (22) on the side facing the cylinder (1), and the sealing gasket (22) can seal with the opening of the cylinder (1).

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