Air valve device

Abstract

The utility model discloses an air valve device which comprises a blade capable of rotating to open and close a ventilation opening. The frame is installed on the rail transit full-height shielding door, the two partition plates are symmetrically arranged and fixedly connected with the transverse inner wall of the frame, the driver is installed between the two partition plates and used for driving the blades to rotate, and the filter cotton is detachably installed on the side, close to a platform, of the frame. The blades are rotationally installed between the partition plate and the vertical inner wall of the frame, and the blades are arranged to be in an arc shape. Opening and closing of the air valve can be automatically adjusted, and the environment that the platform side and the rail side are communicated or isolated can be achieved by adjusting the flow direction of air flow on the platform door side; the integrated structure of the frame facilitates overall installation, the partition plates are arranged to partition the interior of the frame, and follow-up maintenance and driver wiring are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of rail transit technology, and in particular to a wind valve device. Background Technology

[0002] Rail transit refers to a type of transportation vehicle or transport system that requires operating vehicles to run on specific tracks. With the application of full-height platform screen doors in the rail transit field, the rail transit platform side and the track side are mostly in a closed and non-interconnected state. Air flow and temperature regulation inside the rail transit platform side still rely on electrical equipment such as air conditioners, which consume a lot of electrical energy, especially in winter and summer. Utility Model Content

[0003] Purpose of the utility model: The purpose of this utility model is to provide an air valve device that can achieve air circulation between the platform side and the track side and save energy.

[0004] Technical solution: The present invention discloses a wind valve device, including a blade that can rotate to open and close the ventilation opening, a frame installed on the full-height platform screen door of rail transit, two symmetrically arranged partitions fixedly connected to the transverse inner wall of the frame, a driver installed between the two partitions for driving the blade to rotate, and a filter cotton detachably installed on the side of the frame near the platform. The blade is rotatably installed between the partition and the vertical inner wall of the frame, and the blade is set to an arc shape.

[0005] Furthermore, the full-height shielding door is equipped with two symmetrically arranged mounting columns, the frame is snapped between the two mounting columns, and extension plates are provided on both sides of the frame. The extension plates are snapped onto one side of the mounting columns, and the extension plates are threadedly connected to the mounting columns by bolts.

[0006] Furthermore, two symmetrically arranged strips are installed on the frame near the platform side, and the filter cotton is connected to the frame through the strips.

[0007] Furthermore, there are two or more blades on the same side of the partition, and multiple blades on the same side of the partition are arranged vertically, with the upper and lower ends of two adjacent blades in contact when the air valve device is closed.

[0008] Furthermore, sealing strips are installed at both the upper and lower edges of the blade.

[0009] Furthermore, the blade is provided with extension shafts at both ends, and the extension shafts at both ends are rotatably connected to the frame and the partition, respectively. The extension shaft rotatably connected to the partition passes through the partition and is fixedly connected to the output shaft of the driver.

[0010] Furthermore, a sealing ring adapted to the extension shaft is installed on the side wall of the frame.

[0011] Beneficial Effects: Compared with existing technologies, this utility model has the following advantages: This utility model can independently adjust the opening and closing of the air valve, and by adjusting the airflow direction on the platform door side, it can achieve an environment where the platform side and the track side are interconnected or isolated. The airflow on both sides can refresh the air on the platform side, achieving the function of cooling the station in summer and insulating the station in winter, thereby saving a significant amount of energy. The integrated frame structure facilitates overall installation, and the partition design divides the interior of the frame, facilitating subsequent maintenance and drive wiring. The filter cotton can filter the air entering the platform side, and the filter cotton is detachably connected to the frame, making it convenient to remove the filter cotton for maintenance of the components inside the frame. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the frame of this utility model installed on a full-height shielding door;

[0013] Figure 2 This is a schematic diagram of the frame structure of this utility model;

[0014] Figure 3 This is another structural schematic diagram of the framework of this utility model. Detailed Implementation

[0015] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0016] This utility model discloses an air valve device, such as Figure 1 As shown, the device includes blade 1, frame 3, partition 4, actuator 5, and filter cotton 6. Two symmetrically arranged mounting posts 7 are installed on the full-height shielding door 2. The frame 3 is snapped between the two mounting posts 7, and extension plates 8 are provided on both sides of the frame 3. The extension plates 8 are snapped onto one side of the mounting posts 7, and the extension plates 8 are threadedly connected to the mounting posts 7 by bolts.

[0017] like Figure 1 and Figure 3As shown, two partitions 4 are symmetrically arranged and fixedly connected to the transverse inner wall of the frame 3. The driver 5 is installed between the two partitions 4. The driver 5 is a motor or electric actuator. The blade 1 is rotatably installed between the partition 4 and the vertical inner wall of the frame 3. The two ends of the blade 1 are integrally provided with an extension shaft, and the extension shafts at both ends are rotatably connected to the frame 3 and the partition 4 respectively. The extension shaft rotatably connected to the partition 4 passes through the partition 4 and is fixedly connected to the output shaft of the driver 5. A sealing ring 11 adapted to the extension shaft is installed on the side wall of the frame 3. There are two or more blades 1 on the same side of the partition 4. Multiple blades 1 on the same side of the partition 4 are arranged vertically. When the air valve device is closed, the upper and lower ends of two adjacent blades 1 are in contact. That is, when the air valve device is closed, the platform side can be isolated from the track side. When air circulation is required on both sides, the driver 5 drives the blade 1 to rotate, and a gap appears between two adjacent blades 1 to facilitate air circulation on both sides. Preferably, sealing strips 10 are installed at both the upper and lower edges of the blade 1. The sealing strips 10 enhance the sealing performance of the damper when closed. Two partitions 4 divide the frame 3 into three relatively independent spaces. The blades 1 are symmetrically installed in the two side spaces, and the actuator 5 is installed in the middle space. This independent space facilitates wiring for the actuator 5 and subsequent maintenance. The frame 3 forms a single, integrated structure, simplifying the installation and disassembly of the damper.

[0018] like Figure 2 As shown, the filter cotton 6 is detachably installed on the frame 3 near the platform side. Two symmetrically arranged adhesive strips 9 are installed on the frame 3 near the platform side, and the filter cotton 6 is connected to the frame 3 via these strips. The filter cotton 6 serves two purposes: firstly, it filters the air entering the platform side, helping to ensure air quality on the platform side; secondly, it reduces noise generated when air flows between the platform and track sides, contributing to a quieter environment on the platform side. The adhesive strips 9 allow for a detachable connection between the filter cotton 6 and the frame 3, facilitating subsequent removal of the filter cotton 6 and maintenance of internal components within the frame 3.

[0019] Preferably, the blade 1 is designed in an arc shape. The arc shape allows airflow to transition more smoothly along the curved surface, reducing turbulence and resistance. This helps increase the airflow volume while reducing noise generated by the airflow. Compared to a flat, straight blade, the arc shape better controls the directional changes of the gas at the inlet and outlet, ensuring more fresh air is introduced to the platform side or exhaust gas is effectively discharged into the track side. The angled arc structure creates an effect similar to an airfoil section; the pressure difference generated during operation helps move more air mass within a larger volume unit, a characteristic not found on flat surfaces, thus requiring greater driving force to achieve the same exhaust capacity. When the damper is closed, the arc-shaped blade 1 has a larger contact area with the airflow compared to a flat structure, reducing the average force exerted by the airflow on the blade 1. This reduces the resistance of the airflow to the actuator 5, extending its service life.

[0020] When the temperature on the platform side exceeds the preset value, the driver 5 drives the blade 1 to rotate in the forward direction, creating a gap between adjacent blades 1 and opening the air valve. The degree to which the air valve is opened can be controlled by the rotation angle of the blade 1. The opening of the air valve allows air to circulate between the platform side and the track side, which can reduce the temperature on the platform side. When the temperature on the platform side is lower than the preset value, the driver 5 drives the blade 1 to rotate in the reverse direction, so that the upper and lower ends of two adjacent blades 1 come into contact, closing the air valve and reducing air circulation.

Claims

1. A damper device comprising a blade (1) which can be rotated to open and close a ventilation opening, characterized in that: The frame (3) is installed on a full-height shielding door (2) of rail transit, two partition plates (4) are symmetrically arranged and fixedly connected with the lateral inner wall of the frame (3), a driver (5) is installed between the two partition plates (4) for driving the rotation of the blade (1), and filter cotton (6) is detachably installed on the frame (3) near the platform side, the blade (1) is rotatably installed between the partition plate (4) and the vertical inner wall of the frame (3), and the blade (1) is arranged in a circular arc shape.

2. The damper assembly of claim 1, wherein: Two mounting columns (7) are symmetrically arranged on the full-height shielding door (2), the frame (3) is clamped and installed between the two mounting columns (7), and an extension plate (8) is arranged on each side of the frame (3), the extension plate (8) is clamped on one side of the mounting column (7), and the extension plate (8) is threadedly connected with the mounting column (7) by bolts.

3. The damper assembly of claim 1, wherein: Two symmetrically arranged adhesive strips (9) are installed on the frame (3) near the platform side, and the filter cotton (6) is connected with the frame (3) through the adhesive strips.

4. The damper assembly of claim 1, wherein: Two or more blades (1) are arranged on the same side of the partition plate (4), the multiple blades (1) on the same side of the partition plate (4) are arranged in an up-down manner, and the upper end and the lower end of the adjacent two blades (1) are in contact when the air valve device is closed.

5. The damper assembly of claim 1, wherein: A sealing strip (10) is installed at the upper end edge and the lower end edge of the blade (1).

6. The damper assembly of claim 1, wherein: Extension shafts are arranged at both ends of the blade (1), the extension shafts at both ends are respectively rotatably connected with the frame (3) and the partition plate (4), and the extension shaft rotatably connected with the partition plate (4) penetrates the partition plate (4) and is fixedly connected with the output shaft of the driver (5).

7. The damper assembly of claim 1, wherein: A sealing ring (11) adapted to the extension shaft is installed on the side wall of the frame (3).

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