Composite material negative pressure air duct with high dust removal effect

Abstract

The utility model discloses a composite material negative pressure air guiding tube with high dust removal effect relates to composite material air guiding tube technical field, the utility model discloses a composite material negative pressure air guiding tube with high dust removal effect, including connecting rod, the connecting rod fixed hole is provided with supporting device, the inside of supporting device is provided with the fixed device of carrying out air guiding, the inside of connecting rod is provided with the limiting device of the stability of promotion fixed device when using, the upper end surface of connecting rod is provided with the protective device of preventing the fixed device of stone knock, through supporting device to fixed device fixed, then through limiting device to fixed device further limit, avoid the risk of falling in the coal mine underground, through the upper wind of protective device to the fixed device is shielded to avoid the coal mine in the stone knock to the surface of fixed device, thereby influence the normal use of fixed device, thereby realize the stability of promotion fixed device when using.

Description

Technical Field

[0001] This utility model relates to the field of composite material air duct technology, specifically to a composite material negative pressure air duct with high dust removal efficiency. Background Technology

[0002] A ventilation duct, also known as a ductwork, is a flexible pipe that guides airflow in a specific direction. Currently, in China, ducts are categorized into first-generation rubber-coated slotted ducts, third-generation plastic-coated slotted ducts, and third-generation seamless ducts. Ventilation ducts are further divided into positive pressure ducts and negative pressure ducts. The difference lies in their construction: positive pressure ducts are installed in 10-meter sections without a central frame, while negative pressure ducts are composed of numerous steel rings, also known as framed ducts. Positive pressure duct vents blow air outwards, while negative pressure duct vents draw air inwards.

[0003] Existing patent number CN211666759U proposes a composite material high dust removal effect negative pressure air guide duct, which relates to the field of composite material air guide duct technology. It includes an air guide duct, an air guide duct end ring, a skeleton steel strip, a connecting buckle, and a horizontal connecting rod. The connecting buckle is located above the skeleton steel strip and is fixed on the horizontal connecting rod. The straightness of the horizontal connecting rod is 0.1mm.

[0004] The aforementioned composite material high dust removal efficiency negative pressure air duct is connected only by a steel frame and connecting buckles during use. This results in poor surface fixation of the air duct, which can lead to displacement of the air duct. Furthermore, it provides poor protection for the air duct, as gravel in the coal mine may bump into it, leading to poor stability of the air duct.

[0005] To address this, a composite material negative pressure air duct with high dust removal efficiency is proposed. Utility Model Content

[0006] The purpose of this invention is to address the problem that, in the above-mentioned composite material negative pressure air duct with high dust removal efficiency, the air duct is only connected by a steel frame and connecting buckles, which results in poor surface fixation of the air duct, causing displacement of the air duct, and poor protection of the air duct, allowing gravel in the coal mine to hit the air duct, thus leading to poor stability of the air duct. This invention provides a composite material negative pressure air duct with high dust removal efficiency.

[0007] To achieve the above objectives, this utility model specifically adopts the following technical solution: A composite negative pressure air duct with high dust removal efficiency includes a connecting rod. The left and right side walls of the connecting rod are provided with fixing grooves. A support device is provided in the fixing hole of the connecting rod to provide support. A fixing device for guiding air is provided inside the support device. A limiting device to improve the stability of the fixing device during use is provided inside the connecting rod. A protective device to prevent gravel from hitting the fixing device is provided on the upper end face of the connecting rod.

[0008] Furthermore, the support device includes a fixing block and a fixing frame. The fixing block is fixedly installed in the fixing groove of the connecting rod, and the fixing frame is fixedly installed on the lower end face of the fixing block.

[0009] Furthermore, the support device includes a support side plate, which is fixedly installed on the lower end face of the connecting rod, and the support side plate is fixedly connected to the fixing frame.

[0010] Furthermore, the fixing device includes a fixing ring, a rubber ring, and an air guide tube. The fixing ring is fixedly installed on the opposite side wall of the fixing frame, the rubber ring is fixedly installed inside the fixing ring, and the air guide tube is fixedly installed inside the rubber ring.

[0011] Furthermore, the limiting device includes a limiting plate and a connecting block. The limiting plate is fixedly installed inside the connecting rod, and the connecting block is fixedly installed on the lower end face of the limiting plate. The connecting block is fixedly connected to the fixing ring.

[0012] Furthermore, the protective device includes a support rod and a protective plate, wherein the support rod is fixedly installed on the upper end face of the connecting rod, and the protective plate is fixedly installed on the upper end face of the support rod.

[0013] The beneficial effects of this utility model are as follows: The fixing device is secured by a support device, and then further limited by a limiting device to avoid the risk of falling off in the coal mine. A protective device is used to shield the fixing device from the wind, thereby preventing the surface of the fixing device from being hit by gravel in the coal mine, which would affect the normal use of the fixing device, thus improving the stability of the fixing device during use. Attached Figure Description

[0014] Figure 1 This is a front view of the three-dimensional structure of this utility model; Figure 2 This is a front view of the three-dimensional structure of this utility model; Figure 3 This is a left view of the three-dimensional structure of this utility model; Reference numerals in the attached drawings: 1. Connecting rod; 2. Support device; 201. Fixing block; 202. Fixing frame; 203. Supporting side plate; 3. Fixing device; 301. Fixing ring; 302. Rubber ring; 303. Air guide tube; 4. Limiting device; 401. Limiting plate; 402. Connecting block; 5. Protective device; 501. Support rod; 502. Protective plate. Detailed Implementation

[0015] 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.

[0016] 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.

[0017] 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.

[0018] 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.

[0019] Please see Figure 1-3 A composite negative pressure air duct with high dust removal efficiency includes a connecting rod 1. The left and right side walls of the connecting rod 1 are provided with fixing grooves. A support device 2 is provided in the fixing hole of the connecting rod 1 to provide support. A fixing device 3 for guiding air is provided inside the support device 2. A limiting device 4 for improving the stability of the fixing device 3 during use is provided inside the connecting rod 1. A protective device 5 is provided on the upper end face of the connecting rod 1 to prevent gravel from hitting the fixing device 3.

[0020] Specifically, the fixing device 3 is fixed by the supporting device 2, and then the fixing device 3 is further limited by the limiting device 4 to avoid the risk of falling off in the coal mine. The protective device 5 blocks the windward side of the fixing device 3 to prevent the gravel in the coal mine from hitting the surface of the fixing device 3 and affecting the normal use of the fixing device 3, thereby improving the stability of the fixing device 3 during use.

[0021] The support device 2 includes a fixing block 201 and a fixing frame 202. The fixing block 201 is fixedly installed in the fixing groove of the connecting rod 1, and the fixing frame 202 is fixedly installed on the lower end face of the fixing block 201.

[0022] Specifically, the fixing block 201 and the fixing frame 202 provide support for the fixing device 3.

[0023] The support device 2 includes a support side plate 203, which is fixedly installed on the lower end face of the connecting rod 1, and the support side plate 203 is fixedly connected to the fixing frame 202.

[0024] Specifically, the stability of the fixing frame 202 during use is improved by supporting the side plate 203.

[0025] The fixing device 3 includes a fixing ring 301, a rubber ring 302, and an air guide 303. The fixing ring 301 is fixedly installed on the opposite side wall of the fixing frame 202, the rubber ring 302 is fixedly installed inside the fixing ring 301, and the air guide 303 is fixedly installed inside the rubber ring 302.

[0026] Specifically, the air guide 303 is supported by the fixing ring 301, and the friction on the surface of the air guide 303 is increased by the rubber ring 302, thereby preventing the air guide 303 from falling off during use.

[0027] The limiting device 4 includes a limiting plate 401 and a connecting block 402. The limiting plate 401 is fixedly installed inside the connecting rod 1, and the connecting block 402 is fixedly installed on the lower end face of the limiting plate 401. The connecting block 402 is fixedly connected to the fixing ring 301.

[0028] Specifically, the air guide 303 is further limited by the limiting plate 401 and the connecting block 402, thereby improving the stability of the air guide 303 during use.

[0029] The protective device 5 includes a support rod 501 and a protective plate 502. The support rod 501 is fixedly installed on the upper end face of the connecting rod 1, and the protective plate 502 is fixedly installed on the upper end face of the support rod 501.

[0030] Specifically, the upper part of the air guide duct 303 is protected by the support rod 501 and the protective plate 502 to prevent gravel from hitting the surface of the air guide duct 303, thereby improving the stability of the air guide duct 303 during use.

[0031] In summary: The fixing device 3 is secured by the support device 2, and then further limited by the limiting device 4 to avoid the risk of falling off in the coal mine. The protective device 5 shields the fixing device 3 from the wind, preventing the surface of the fixing device 3 from being hit by gravel in the coal mine, thus affecting the normal use of the fixing device 3 and improving the stability of the fixing device 3 during use. The fixing block 201 and the fixing frame 202 provide support for the fixing device 3, and the supporting side plate 203 enhances the stability of the fixing frame 202 during use. The air guide 303 is supported by a fixing ring 301, and the friction on the surface of the air guide 303 is increased by a rubber ring 302, thereby preventing the air guide 303 from falling off during use. The air guide 303 is further limited by a limiting plate 401 and a connecting block 402, thereby improving the stability of the air guide 303 during use. The top of the air guide 303 is protected by a support rod 501 and a protective plate 502 to prevent gravel from hitting the surface of the air guide 303, thereby improving the stability of the air guide 303 during use.

[0032] 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A composite material negative pressure air duct with high dust removal efficiency, comprising a connecting rod (1), characterized in that, The left and right side walls of the connecting rod (1) are provided with fixing grooves. A support device (2) is provided in the fixing hole of the connecting rod (1) to provide support. A fixing device (3) for guiding air is provided inside the support device (2). A limiting device (4) for improving the stability of the fixing device (3) during use is provided inside the connecting rod (1). A protective device (5) is provided on the upper end face of the connecting rod (1) to prevent gravel from hitting the fixing device (3).

2. The composite negative pressure air duct with high dust removal effect according to claim 1, characterized in that, The support device (2) includes a fixing block (201) and a fixing frame (202). The fixing block (201) is fixedly installed in the fixing groove of the connecting rod (1), and the fixing frame (202) is fixedly installed on the lower end face of the fixing block (201).

3. The composite negative pressure air duct with high dust removal effect according to claim 1, characterized in that, The support device (2) includes a support side plate (203), which is fixedly installed on the lower end face of the connecting rod (1) and is fixedly connected to the fixing frame (202).

4. The composite negative pressure air duct with high dust removal effect according to claim 2, characterized in that, The fixing device (3) includes a fixing ring (301), a rubber ring (302) and an air guide (303). The fixing ring (301) is fixedly installed on the opposite side wall of the fixing frame (202), the rubber ring (302) is fixedly installed inside the fixing ring (301), and the air guide (303) is fixedly installed inside the rubber ring (302).

5. The composite negative pressure air duct with high dust removal effect according to claim 1, characterized in that, The limiting device (4) includes a limiting plate (401) and a connecting block (402). The limiting plate (401) is fixedly installed inside the connecting rod (1), and the connecting block (402) is fixedly installed on the lower end face of the limiting plate (401). The connecting block (402) is fixedly connected to the fixing ring (301).

6. The composite negative pressure air duct with high dust removal effect according to claim 1, characterized in that, The protective device (5) includes a support rod (501) and a protective plate (502). The support rod (501) is fixedly installed on the upper end face of the connecting rod (1), and the protective plate (502) is fixedly installed on the upper end face of the support rod (501).

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