Locally ventilated air volume adjustment assembly

Abstract

This utility model discloses an easy-to-install local ventilation airflow adjustment component, including an air valve pipe, a central support component, an airflow adjustment component, and a servo motor. The central support component is located inside the air valve pipe; the airflow adjustment component is located between the air valve pipe and the central support component; the servo motor is located above the air valve pipe; the central support component includes a central disc and a support rod; the airflow adjustment component includes fan-shaped blades, a connecting rod, a bearing, a transmission frame, a linkage rod, and a sealing strip. The fan-shaped blades of this utility model are airtightly connected to the inner wall of the air valve pipe, and sealing strips are alternately fixed between adjacent fan-shaped blades, effectively enhancing airtightness during airflow adjustment, reducing air leakage, ensuring the accuracy of airflow adjustment, and enabling quick installation in conjunction with the flange holes on the outer wall of the air valve pipe.

Description

Technical Field

[0001] This utility model relates to the field of ventilation air volume regulation technology, specifically to a local ventilation air volume regulation component that is easy to install. Background Technology

[0002] In coal and rock roadway mining operations, the ventilation system is a key component in ensuring operational safety and personnel health. Its core function is to dilute harmful gases in the roadway, reduce dust concentration, and maintain suitable operating temperature and air quality. With the increase in mining depth and the increasing complexity of roadway structure, higher requirements are placed on the stability and flexibility of the ventilation system. Coal and rock roadway ventilation regulation devices have emerged as an important tool for achieving precise air volume distribution and adapting to the ventilation needs of different mining stages. These devices need to work in conjunction with ventilation pipelines to ensure that each working area receives a standard air volume supply by adjusting the airflow resistance in the pipelines. They are an indispensable technical support in the coal and rock mining process.

[0003] Due to the narrow tunnel space and complex terrain, the installation of pipelines often requires dealing with irregular tunnel cross-sections and obstacles, making pipeline splicing and fixing operations difficult. This not only consumes a lot of manpower and time, but also easily affects the overall ventilation efficiency due to insufficient installation accuracy. On the other hand, the air volume adjustment of traditional ventilation pipelines mostly relies on simple valve or baffle structures, which makes it difficult to achieve precise control during the adjustment process. This can easily lead to excessive air volume fluctuations or adjustment lags. The combination of these two problems means that the connection between the ventilation equipment outlet and the pipeline needs to be repeatedly adjusted, which increases operating costs and makes it impossible to quickly respond to changes in ventilation demand in the tunnel, potentially affecting the continuity and safety of mining operations. Utility Model Content

[0004] The purpose of this utility model is to provide a local ventilation air volume adjustment component that is easy to install. It has the advantages of quick connection between the equipment and the ventilation pipeline flange and high air volume adjustment accuracy of the ventilation pipeline. It solves the problem of the existing ventilation pipeline in coal and rock roadways, which is difficult to install and has low air volume adjustment accuracy, resulting in time-consuming and laborious connection between the ventilation equipment outlet and the pipeline and inconvenient adjustment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An easy-to-install local ventilation airflow regulating component includes an air valve duct, a central support component, an airflow regulating component, and a servo motor. The central support component is located inside the air valve duct; the airflow regulating component is located between the air valve duct and the central support component; the servo motor is located above the air valve duct; the central support component includes a central disc and a support rod; the airflow regulating component includes fan-shaped blades, a connecting rod, a bearing, a transmission frame, a linkage rod, and a sealing strip; the central disc is located at the center of the air valve duct; the support rod is located between the air valve duct and the central disc; fan-shaped blades are located between the central disc and the air valve duct; a connecting rod is located at one outer end of the fan-shaped blades; a bearing is located around the outer perimeter of the air valve duct; a transmission frame is located at the upper end of the connecting rod; and linkage rods are located between adjacent transmission frames.

[0006] Preferably, one outer end of the fan-shaped blade is airtightly connected to the inner wall of the air valve pipe; the output end of the servo motor is fixedly connected to the connecting rod; flange holes are provided around the outer wall of the air valve pipe, and the flange holes on the outer wall of the air valve pipe are flanged to the ventilation duct.

[0007] It is worth noting that the fan-shaped blades are airtightly connected to the inner wall of the air valve pipe, which can effectively enhance the airtightness during air volume adjustment, reduce the air leakage rate, and ensure the accuracy of air volume adjustment; the servo motor output end is directly fixed to the connecting rod, which can accurately transmit power, making the rotation control of all fan-shaped blades more precise and improving the response speed and control accuracy of air volume adjustment.

[0008] Preferably, three support rods are provided, and the two ends of the support rods are fixedly connected to the inner wall of the air valve pipe and the central plate, respectively.

[0009] It is worth noting that the three support rods are arranged in a triangle, which can provide stable support for the central plate, making the structure of the central support component more robust. During airflow adjustment, the central plate is less likely to wobble, providing a stable central support foundation for the rotation of the fan blades and ensuring the overall structural stability.

[0010] Preferably, the fan-shaped blades are rotatably connected to the central disk.

[0011] It is worth noting that the fan-shaped blades and the central disk are connected by a rotating mechanism, which makes the fan-shaped blades rotate more flexibly and smoothly when adjusting the air volume, reduces rotational resistance, and facilitates precise adjustment at different angles, thereby enabling more precise control of the air volume.

[0012] Preferably, the bearing is bolted to the air valve pipe, and the bearing is rotatably connected to the connecting rod.

[0013] It is worth noting that the bearing and the air valve pipe are fixed with bolts, which not only makes installation and disassembly convenient, but also ensures the firmness of the connection. At the same time, the bearing and the connecting rod are rotatably connected, which can greatly reduce the frictional resistance when the connecting rod rotates, making the connecting rod rotate more smoothly, improving the mechanical transmission efficiency of the air volume regulating component, and also helping to extend the service life of the component.

[0014] Preferably, the transmission frame is fixedly connected to the connecting rod.

[0015] It is worth noting that the transmission frame is fixedly connected to the connecting rod, which ensures the effective transmission of power from the connecting rod to the transmission frame. This allows the transmission frame to rotate synchronously with the connecting rod, and then drives the adjacent transmission frames through the linkage rod to achieve synchronous adjustment of multiple fan-shaped blades, ensuring the consistency of air volume adjustment.

[0016] Preferably, both ends of the linkage are rotatably connected to the adjacent transmission frame.

[0017] It is worth noting that the linkage rod is rotatably connected to the adjacent transmission frame, so that when one transmission frame rotates, the adjacent transmission frame can be driven to rotate synchronously through the linkage rod, thereby realizing the synchronous linkage adjustment of all fan blades and ensuring the uniformity of air volume adjustment; at the same time, the rotatable connection also makes the transmission more flexible and reduces the possibility of mechanical jamming.

[0018] Preferably, sealing strips are fixedly installed alternately between adjacent fan-shaped blades.

[0019] It is worth noting that sealing strips are alternately installed between adjacent fan-shaped blades. During the rotation and adjustment of the fan-shaped blades, the sealing strips can fill the gaps between the blades, enhance the airtightness between adjacent blades, further reduce air leakage, improve the accuracy and sealing of airflow adjustment, and ensure that the airflow can be accurately controlled at different opening degrees.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: The fan-shaped blades of this invention are airtightly connected to the inner wall of the air valve pipe, and sealing strips are alternately fixed between adjacent fan-shaped blades, which effectively enhances the airtightness during air volume adjustment, reduces the air leakage rate, and ensures the accuracy of air volume adjustment.

[0021] Three support rods are arranged in a triangular pattern to provide stable support for the central disc, making the central support assembly structure more robust. The bearings are bolted to the air valve pipe and rotatably connected to the connecting rod. The transmission frame is fixedly connected to the connecting rod, and the linkage rod is rotatably connected to the adjacent transmission frame, making the transmission flexible and smooth. It can realize the synchronous linkage adjustment of all fan blades, improving the response speed, control accuracy and mechanical transmission efficiency of air volume adjustment. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall rear view structure of this utility model; Figure 3 This is a schematic diagram of the combined structure of the air valve pipe, central plate, and support rod of this utility model; Figure 4 This is a schematic diagram of the combined structure of the central disc and support rod of this utility model; Figure 5 This is a schematic diagram of the airflow regulating component of this utility model.

[0023] Figure label: 1. Air valve pipe; 2. Central support assembly; 3. Air volume adjustment assembly; 4. Servo motor; 201. Central plate; 202. Support rod; 301. Fan-shaped blade; 302. Connecting rod; 303. Bearing; 304. Transmission frame; 305. Linkage rod; 306. Sealing strip. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] To address the problems of difficult installation and low airflow adjustment accuracy in existing ventilation ducts for coal and rock roadways, which result in time-consuming, labor-intensive connections between ventilation equipment outlets and ductwork, and inconvenient adjustments, the following technical solution is proposed. Please refer to [link / reference]. Figure 1-5 ; An easy-to-install local ventilation airflow regulating component includes a valve pipe 1, a central support component 2, an airflow regulating component 3, and a servo motor 4. The central support component 2 is installed inside the valve pipe 1; the airflow regulating component 3 is installed between the valve pipe 1 and the central support component 2; the servo motor 4 is installed above the valve pipe 1; the central support component 2 includes a central disc 201 and a support rod 202; the airflow regulating component 3 includes fan-shaped blades 301, a connecting rod 302, a bearing 303, and a transmission... The device includes a moving frame 304, a linkage rod 305, and a sealing strip 306. A central disc 201 is provided at the center of the air valve pipe 1. A support rod 202 is provided between the air valve pipe 1 and the central disc 201. A fan-shaped blade 301 is provided between the central disc 201 and the air valve pipe 1. A connecting rod 302 is provided at one outer end of the fan-shaped blade 301. A bearing 303 is provided around the outer perimeter of the air valve pipe 1. A transmission frame 304 is provided at the upper end of the connecting rod 302. A linkage rod 305 is provided between adjacent transmission frames 304.

[0026] One outer end of the fan-shaped blade 301 is airtightly connected to the inner wall of the air valve pipe 1; the output end of the servo motor 4 is fixedly connected to the connecting rod 302; flange holes are provided around the outer wall of the air valve pipe 1, and the flange holes on the outer wall of the air valve pipe 1 are flanged to the ventilation duct.

[0027] There are three support rods 202, and the two ends of the support rods 202 are fixedly connected to the inner wall of the air valve pipe 1 and the central plate 201, respectively.

[0028] The fan-shaped blade 301 is rotatably connected to the central disk 201.

[0029] The bearing 303 is bolted to the air valve pipe 1, and the bearing 303 is rotatably connected to the connecting rod 302.

[0030] The transmission frame 304 is fixedly connected to the connecting rod 302.

[0031] Both ends of the linkage 305 are rotatably connected to the adjacent transmission frame 304.

[0032] Sealing strips 306 are fixedly installed alternately between adjacent fan-shaped blades 301.

[0033] Working principle: The servo motor 4 outputs power to drive the connecting rod 302, which is fixedly connected to it, to rotate. When the connecting rod 302 rotates, the transmission frame 304, which is fixedly connected to it, rotates synchronously. Through the linkage rod 305, which is rotatably connected to the adjacent transmission frame 304 at both ends, the rotation of one transmission frame 304 drives the adjacent transmission frame 304 to rotate synchronously, thereby driving all the fan-shaped blades 301 to rotate around the central disk 201, thereby adjusting the air volume. During the adjustment process, the airtight connection between the fan-shaped blades 301 and the inner wall of the air valve pipe 1, as well as the filling effect of the sealing strip 306 between adjacent fan-shaped blades 301, enhances the airtightness, reduces air leakage, and ensures accurate air volume adjustment. The three support rods 202 ensure the structural stability of the central support component 2, the bearing 303 reduces the rotational friction of the connecting rod 302, and the cooperation between the transmission frame 304 and the linkage rod 305 realizes the synchronous linkage of the fan-shaped blades 301, making the fan-shaped blades 301 rotate more flexibly, improving the response speed, control accuracy and mechanical transmission efficiency of air volume adjustment, and extending the service life of the components.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. An easy-to-install local ventilation airflow regulating component, including an air valve pipe (1), characterized in that, It also includes a central support assembly (2), an airflow regulating assembly (3), and a servo motor (4). The central support assembly (2) is installed inside the air valve pipe (1); the airflow regulating assembly (3) is installed between the air valve pipe (1) and the central support assembly (2); the servo motor (4) is installed above the air valve pipe (1); the central support assembly (2) includes a central disc (201) and a support rod (202); the airflow regulating assembly (3) includes a fan-shaped blade (301), a connecting rod (302), a bearing (303), a transmission frame (304), and a linkage rod (305). 5) Sealing strip (306); A central plate (201) is provided at the center of the air valve pipe (1); A support rod (202) is provided between the air valve pipe (1) and the central plate (201); A fan-shaped blade (301) is provided between the central plate (201) and the air valve pipe (1); A connecting rod (302) is provided at one end of the outer side of the fan-shaped blade (301); A bearing (303) is provided around the outer side of the air valve pipe (1); A transmission frame (304) is provided at the upper end of the connecting rod (302); A linkage rod (305) is provided between adjacent transmission frames (304).

2. The easy-to-install local ventilation airflow regulating component according to claim 1, characterized in that, One end of the fan-shaped blade (301) is airtightly connected to the inner wall of the air valve pipe (1); the output end of the servo motor (4) is fixedly connected to the connecting rod (302); the outer wall of the air valve pipe (1) is provided with flange holes all around, and the flange holes on the outer wall of the air valve pipe (1) are flange connected to the ventilation pipeline.

3. The easy-to-install local ventilation airflow regulating component according to claim 1, characterized in that, There are three support rods (202), and the two ends of the support rods (202) are fixedly connected to the inner wall of the air valve pipe (1) and the central plate (201) respectively.

4. The easy-to-install local ventilation airflow regulating component according to claim 1, characterized in that, The fan-shaped blade (301) is rotatably connected to the central disk (201).

5. The easy-to-install local ventilation airflow regulating component according to claim 1, characterized in that, The bearing (303) is bolted to the air valve pipe (1), and the bearing (303) is rotatably connected to the connecting rod (302).

6. The easy-to-install local ventilation airflow regulating component according to claim 1, characterized in that, The transmission frame (304) is fixedly connected to the connecting rod (302).

7. The easy-to-install local ventilation airflow regulating component according to claim 1, characterized in that, The two ends of the linkage (305) are rotatably connected to the adjacent transmission frame (304).

8. The easy-to-install local ventilation airflow regulating component according to claim 1, characterized in that, Sealing strips (306) are fixedly installed alternately between adjacent fan-shaped blades (301).

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