Antistatic air duct with double-layer filtering structure

Abstract

The utility model discloses an anti-static air duct with a double-layer filtering structure, which relates to the technical field of anti-static air ducts and comprises an anti-static air duct body and two filtering screens, a hollow shell is arranged on one side of the anti-static air duct body, an air pipe is arranged on one side of the hollow shell, and the two filtering screens are arranged on the air pipe. Two groups of auxiliary mechanisms which are used for facilitating mounting and dismounting of the filter screen and can be positioned and mounted in the hollow shell are arranged on the hollow shell, the filter screen is arranged on the auxiliary mechanisms, and a fixing rod is arranged at the bottom of the hollow shell; a fixing mechanism used for pressing and fixing the auxiliary mechanism on the hollow shell is arranged on the fixing rod, the auxiliary mechanism comprises an installation frame, an installation groove is formed in the top of the hollow shell, and the installation frame is installed on the inner wall of the installation groove in a sliding mode. The filter screen can be independently mounted and dismounted, the cost is saved, the operation is simple, and the practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of antistatic duct technology, specifically to an antistatic duct with a double-layer filter structure. Background Technology

[0002] Antistatic ventilation ducts are specially designed ventilation equipment to eliminate or reduce static electricity accumulation. They are mainly used in local ventilation systems of underground projects such as coal mines, tunnels, and subways. In coal mines, they are used to reduce methane concentration and improve operational safety. In tunnel construction, they are used to ensure the stable operation of the ventilation system. Antistatic ventilation ducts are usually made of high-strength polyester fiberglass woven into a coated base fabric and modified with PVC to give it both flame-retardant and antistatic properties. This structure not only enhances the durability of the ventilation duct but also maintains stability in extreme environments. Antistatic ventilation ducts effectively neutralize static electricity and prevent accidents caused by static electricity accumulation by adding antistatic agents to the surface or using negative ion technology to form a conductive film layer or release negative ions.

[0003] In the existing technology, in order to ensure ventilation in the tunnel, antistatic ducts are used to guide the airflow into the tunnel. Most antistatic ducts use two layers of filters to filter dust in the guided airflow. The filters usually have frames. If the filters are damaged and need to be replaced after long-term use, the frames also need to be replaced, which increases the cost of use. In addition, the installation of filters and frames on antistatic ducts is relatively cumbersome.

[0004] To address this, an antistatic air duct with a double-layer filtration structure is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide an antistatic air duct with a double-layer filtration structure in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] An antistatic duct with a double-layer filtration structure includes an antistatic duct body and two filter screens. A hollow shell is provided on one side of the antistatic duct body, and a duct is provided on one side of the hollow shell. An auxiliary mechanism is provided on the hollow shell to facilitate the installation and removal of the filter screens and to position them inside the hollow shell. The filter screens are placed on the auxiliary mechanism. The number of auxiliary mechanisms is set to two sets. A fixing rod is provided at the bottom of the hollow shell, and a fixing mechanism is provided on the fixing rod to press and fix the auxiliary mechanism to the hollow shell.

[0008] Furthermore, the auxiliary mechanism includes a mounting frame, and the top of the hollow shell is provided with a mounting groove, and the mounting frame is slidably mounted on the inner wall of the mounting groove.

[0009] Furthermore, a baffle is fixedly installed on the inner wall of the mounting frame, and the filter screen is in contact with the baffle. A threaded ring is fixedly installed on the surface of the baffle. A pressure plate is slidably installed on the inner wall of the mounting frame, and the filter screen is located between the baffle and the pressure plate and in contact with it. A screw is threadedly installed between the baffle, the threaded ring and the pressure plate, and the screw is slidably installed on the filter screen.

[0010] Furthermore, the number of the threaded rings and screws is set to four, and they are arranged in a rectangular pattern.

[0011] Furthermore, the fixing mechanism includes a bidirectional screw, which is rotatably installed inside the fixing rod. Two movable rods are threadedly installed on the outer wall of the bidirectional screw. One end of the bidirectional screw extends outside the fixing rod, and a knob is fixedly installed on the surface of the extended end of the bidirectional screw.

[0012] Furthermore, the top surfaces of the two movable rods are horizontal with the top surface of the hollow shell, and a connecting plate is fixedly installed on the top of each of the two movable rods.

[0013] The beneficial effects of this utility model are as follows:

[0014] This utility model, through the arrangement of filter screens, auxiliary mechanisms, and fixing mechanisms, allows for easy installation of the filter screens on the auxiliary mechanisms during use. The auxiliary mechanisms are then inserted into the hollow shell, and finally pressed and fixed onto the hollow shell by the fixing mechanism. When outside air enters the anti-static duct body, the two filter screens filter dust from the outside air, improving the quality of the air introduced into the tunnel. After a period of use, the fixing mechanism can be used to release the two sets of auxiliary mechanisms, allowing the two sets of auxiliary mechanisms and the two filter screens to be removed from the hollow shell for cleaning and surface washing. When the filter screens are damaged, the internal fixing structure of the auxiliary mechanisms can be released to disassemble the filter screens, facilitating easy removal for cleaning and maintenance. The filter screens can also be installed and disassembled individually, saving costs, and offering simple operation and high practicality. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the hollow shell structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the mounting frame of this utility model.

[0018] Reference numerals in the attached drawings: 1. Main body of antistatic duct; 2. Hollow shell; 3. Duct; 4. Auxiliary mechanism; 401. Mounting groove; 402. Mounting frame; 403. Baffle; 404. Threaded ring; 405. Pressure plate; 406. Screw; 5. Filter screen; 6. Fixing rod; 7. Fixing mechanism; 701. Two-way screw; 702. Moving rod; 703. Connecting plate; 704. Knob. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] like Figure 1-3As shown, an antistatic duct with a double-layer filtration structure includes an antistatic duct body 1 and two filter screens 5. A hollow shell 2 is provided on one side of the antistatic duct body 1, and a duct 3 is provided on one side of the hollow shell 2. An auxiliary mechanism 4 is provided on the hollow shell 2 to facilitate the installation and removal of the filter screens 5 and to position them inside the hollow shell 2. The filter screens 5 are mounted on the auxiliary mechanism 4. The number of auxiliary mechanisms 4 is set to two. A fixing rod 6 is provided at the bottom of the hollow shell 2. A fixing mechanism 7 is provided on the fixing rod 6 to press and fix the auxiliary mechanism 4 onto the hollow shell 2. In this embodiment, during use, the filter screens 5 are fixedly installed on the auxiliary mechanism 4, and then the auxiliary mechanism 4 is inserted into the hollow shell 2, and then fixed by the fixing rod 6. The fixing mechanism 7 presses and fixes the auxiliary mechanism 4 onto the hollow shell 2. When outside wind enters the antistatic duct body 1, the two filter screens 5 can filter the dust in the outside wind, improving the quality of the outside air introduced into the tunnel. After a period of use, the two filter screens 5 can be released by the fixing mechanism 7, and the two auxiliary mechanisms 4 and the two filter screens 5 can be taken out from the hollow shell 2 for brushing and cleaning to ensure surface cleanliness. When the filter screens 5 are damaged, the filter screens 5 can be disassembled by releasing the fixing structure inside the auxiliary mechanism 4, thus facilitating the removal, cleaning and maintenance of the filter screens 5, as well as the installation and disassembly of the filter screens 5. This saves costs, is simple to operate, and is highly practical.

[0024] like Figure 1-3 As shown, the auxiliary mechanism 4 includes a mounting frame 402. The top of the hollow shell 2 is provided with a mounting groove 401, and the mounting frame 402 is slidably mounted on the inner wall of the mounting groove 401. In this embodiment, the mounting groove 401 facilitates the positioning of the mounting frame 402 and improves the installation speed.

[0025] like Figure 2-3 As shown, a baffle 403 is fixedly installed on the inner wall of the mounting frame 402, and the filter screen 5 is in contact with the baffle 403. A threaded ring 404 is fixedly installed on the surface of the baffle 403. A pressure plate 405 is slidably installed on the inner wall of the mounting frame 402, and the filter screen 5 is located between the baffle 403 and the pressure plate 405 and is in contact with it. A screw 406 is threaded between the baffle 403, the threaded ring 404 and the pressure plate 405, and the screw 406 is slidably installed on the filter screen 5. In this embodiment, the filter screen 5 is installed by laying the filter screen 5 on the baffle 403, pressing it down with the pressure plate 405, and locking it with the screw 406. When the mounting frame 402 is inserted into the mounting groove 401, the filter screen 5 is positioned and installed inside the hollow shell 2, thereby realizing the individual installation and removal of the filter screen 5.

[0026] like Figure 3As shown, the number of threaded rings 404 and screws 406 is set to four, and they are arranged in a rectangular shape. In this embodiment, the stability of the filter screen 5 is improved by setting the number of threaded rings 404 and screws 406.

[0027] like Figure 1-2 As shown, the fixing mechanism 7 includes a bidirectional screw 701, which is rotatably installed inside the fixing rod 6. Two moving rods 702 are threadedly installed on the outer wall of the bidirectional screw 701. One end of the bidirectional screw 701 extends outside the fixing rod 6, and a knob 704 is fixedly installed on the surface of the extended end of the bidirectional screw 701. In this embodiment, by rotating the knob 704, the bidirectional screw 701 is driven to rotate, causing the two moving rods 702 to move closer to each other or further away from each other, thereby adjusting the distance between the two moving rods 702.

[0028] like Figure 2 As shown, the top surfaces of the two moving rods 702 are horizontal with the top surface of the hollow shell 2. A connecting plate 703 is fixedly installed on the top of each of the two moving rods 702. In this embodiment, when the two moving rods 702 move closer to each other, the two connecting plates 703 move accordingly, slide on the top surface of the hollow shell 2, and press against the top surface of the mounting frame 402 to limit and fix the mounting frame 402.

[0029] In summary, during use, the filter screen 5 is fixedly installed on the auxiliary mechanism 4, then the auxiliary mechanism 4 is inserted into the hollow shell 2, and then the fixing mechanism 7 presses and fixes the auxiliary mechanism 4 onto the hollow shell 2. When outside wind enters the anti-static duct body 1, the two filter screens 5 can filter the dust in the outside wind, improving the quality of the outside air introduced into the tunnel. After a period of use, the two sets of auxiliary mechanisms 4 can be released through the fixing mechanism 7, and the two sets of auxiliary mechanisms 4 and the two filter screens 5 can be taken out from the hollow shell 2 for brushing to ensure surface cleanliness. When the filter screen 5 is damaged, the filter screen 5 can be disassembled by releasing the fixing structure inside the auxiliary mechanism 4, thus facilitating the removal, cleaning, and maintenance of the filter screen 5, as well as the installation and disassembly of the filter screen 5. This saves costs, is simple to operate, and is highly practical. The setting of 01 facilitates the positioning of the mounting frame 402 and improves the installation speed. By laying the filter screen 5 on the baffle 403, pressing it down with the pressure plate 405, and locking it with the screw 406, the installation of the filter screen 5 is completed. When the mounting frame 402 is inserted into the mounting groove 401, the filter screen 5 is positioned and installed inside the hollow shell 2, thus enabling the filter screen 5 to be installed and removed individually. The stability of the filter screen 5 is improved by setting the number of threaded rings 404 and screws 406. By rotating the knob 704, the bidirectional screw 701 is driven to rotate, causing the two moving rods 702 to move closer or further apart, thereby adjusting the distance between the two moving rods 702. When the two moving rods 702 move closer together, the two connecting plates 703 move accordingly, slide on the top surface of the hollow shell 2, and press against the top surface of the mounting frame 402 to limit and fix the mounting frame 402.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An antistatic duct with a double-layer filtration structure, comprising an antistatic duct body (1) and two filter screens (5), characterized in that, A hollow shell (2) is provided on one side of the antistatic duct body (1), and a duct (3) is provided on one side of the hollow shell (2). An auxiliary mechanism (4) is provided on the hollow shell (2) for facilitating the installation and removal of the filter screen (5) and for positioning and installation inside the hollow shell (2). The filter screen (5) is provided on the auxiliary mechanism (4). The number of auxiliary mechanisms (4) is set to two sets. A fixing rod (6) is provided at the bottom of the hollow shell (2). A fixing mechanism (7) is provided on the fixing rod (6) for pressing and fixing the auxiliary mechanism (4) onto the hollow shell (2).

2. The antistatic duct with a double-layer filter structure according to claim 1, characterized in that, The auxiliary mechanism (4) includes a mounting frame (402), and the top of the hollow shell (2) is provided with a mounting groove (401), and the mounting frame (402) is slidably mounted on the inner wall of the mounting groove (401).

3. The antistatic duct with a double-layer filter structure according to claim 2, characterized in that, A baffle (403) is fixedly installed on the inner wall of the mounting frame (402), and the filter screen (5) is in contact with the baffle (403). A threaded ring (404) is fixedly installed on the surface of the baffle (403). A pressure plate (405) is slidably installed on the inner wall of the mounting frame (402), and the filter screen (5) is located between the baffle (403) and the pressure plate (405) and in contact with them. A screw (406) is threaded between the baffle (403), the threaded ring (404) and the pressure plate (405), and the screw (406) is slidably installed on the filter screen (5).

4. The antistatic duct with a double-layer filter structure according to claim 3, characterized in that, The number of threaded rings (404) and screws (406) is set to four, and they are arranged in a rectangular shape.

5. The antistatic duct with a double-layer filter structure according to claim 1, characterized in that, The fixing mechanism (7) includes a bidirectional screw (701), which is rotatably installed inside the fixing rod (6). Two moving rods (702) are threaded on the outer wall of the bidirectional screw (701). One end of the bidirectional screw (701) extends to the outside of the fixing rod (6), and a knob (704) is fixedly installed on the surface of the extended end of the bidirectional screw (701).

6. The antistatic duct with a double-layer filter structure according to claim 5, characterized in that, The top surfaces of the two movable rods (702) are horizontal with the top surface of the hollow shell (2), and a connecting plate (703) is fixedly installed on the top of each of the two movable rods (702).

Images