Axial flow fan air inducing pipeline with filtering structure

Abstract

The utility model discloses an axial flow fan induced air pipeline with a filtering structure. The axial flow fan induced air pipeline comprises a pipeline body, a filtering assembly and a blocking assembly, wherein the filtering assembly and the blocking assembly are arranged at the two ends of the pipeline body. The filter assembly comprises an insect-proof filter screen, a mounting frame and a fastener; the plugging assembly comprises a plugging rotating plate, a rotating plate rotating shaft, a rotating shaft bevel gear and a motor which are used in cooperation with one another, and a driven sealing ring, a driven lead screw and a lead screw bevel gear which are used in cooperation with one another. The air inducing pipeline drives blades of the axial flow fan through a motor to form air inducing flow, and accumulated heat and moisture in a facility communicated with the air inducing pipeline are removed. Meanwhile, an insect prevention filter screen is arranged on the air inducing pipeline, so that pests and mice can be prevented from entering the facility; by starting the motor, the motor drives the plugging rotating plate to form a sealing structure for the pipeline main body, and meanwhile, the rotating plate rotating shaft drives the driven sealing ring to horizontally move until the driven sealing ring covers the rotating gap, so that the plugging rotating plate is sealed, and the sealing performance of the pipeline main body is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of induced air ducts, in particular to an axial flow fan induced air duct with a filtering structure. Background Art

[0002] The induced draft duct is the ventilation duct, which is often used in buildings to achieve indoor and outdoor air circulation and reduce the concentration of harmful gases in the room. The ventilation duct is a metal or non-metallic pipe used in civil buildings or air-conditioning projects. It is also one of the current municipal infrastructure facilities. The ventilation duct can reduce the concentration of harmful gases in the room, and also achieve indoor and outdoor air circulation. According to the material category, it is divided into tin ventilation duct, fiberglass ventilation duct, and composite material ventilation duct. The induced draft duct is an important ventilation and cooling equipment usually used in warehouses, bungalows and other storage buildings, especially in warehouses for grain storage, to keep the grain storage environment ventilated and eliminate the accumulated heat and moisture in the grain storage warehouse.

[0003] In the existing patent application number: CN202322726351.8, the patent name is: A utility model patent for an axial fan induced air duct. In order to prevent moisture from entering the grain storage building through the Z-shaped ventilation duct, the device rotates the threaded rod through the threaded pipe to drive the sealing plate up and down, inserts the sealing plate into the external duct and seals the external duct.

[0004] Although the above method can prevent moisture from entering the grain storage building through the Z-shaped ventilation duct, the sealing plate, rotating threaded rod, threaded pipe and support frame on the device are all exposed to the outside air when idle, and are easily contaminated by external dust. When they enter the inside of the pipeline, they are likely to pollute the pipeline air. In addition, the overall sealing mechanism is large in size and occupies a large space. It also needs to be grooved at the top of the pipeline body for use, which is easy to affect the sealing of the pipeline body itself. It has poor practicality and needs to be improved. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] Therefore, in order to solve the above technical problems, the utility model provides the following technical solutions: an axial flow fan air duct with a filtering structure, comprising a duct body and filtering components and a blocking component arranged at both ends of the duct body;

[0007] The filter assembly includes an insect-proof filter, a mounting frame and a fastener, wherein the mounting frame is fixed to the inner cavity wall of the pipeline body, the rear side wall of the insect-proof filter is arranged close to the mounting frame, the fastener is arranged on the mounting frame, and the front end of the fastener is connected and fixed to the insect-proof filter;

[0008] The sealing assembly includes a sealing turn plate, a turn plate shaft, a shaft bevel gear and a motor that cooperate with each other, as well as a driven sealing ring, a driven lead screw and a lead screw bevel gear that cooperate with each other. The sealing turn plate is rotatably installed at the opening at the other end of the pipeline body, and the turn plate shaft is vertically fixedly arranged in the middle of the sealing turn plate. One end of the turn plate shaft passes through the pipeline body and is mechanically connected to the motor, and the other end is connected to the shaft bevel gear; the shaft bevel gear is mechanically connected to the lead screw bevel gear, the lead screw bevel gear is fixed to one end of the driven lead screw, the other end of the driven lead screw passes through the driven sealing ring and is mechanically connected to the driven sealing ring, and the driven sealing ring is horizontally slidably connected to the pipeline body.

[0009] As a preferred solution of the axial flow fan air duct with a filtering structure described in the utility model, wherein: axial flow fan blades and a motor for driving the axial flow fan blades to rotate are arranged on the duct body.

[0010] As a preferred solution of the axial flow fan induced air duct with a filtering structure described in the utility model, wherein: the cross section of the duct body is a rectangular structure, and the driven sealing ring is adapted to the duct body structure.

[0011] As a preferred solution of the axial flow fan duct with a filtering structure described in the utility model, wherein: the cross-section of the fastener is a T-shaped structure, the rear end of the fastener is rotatably connected to the installation frame, the fastener is fixed at the four corners of the installation frame, and a S-shaped hole is provided on the insect-proof filter net. After the front end of the T-shaped fastener passes through the S-shaped hole, it is rotated and tightened on the insect-proof filter net.

[0012] As a preferred solution of the axial flow fan duct with a filtering structure described in the utility model, the width of the sealing rotating plate is smaller than the width of the inner cavity wall of the duct body, and a rotation gap is left between the sealing rotating plate and the inner cavity wall of the duct body.

[0013] As a preferred solution of the axial flow fan duct with a filtering structure described in the utility model, the width of the driven sealing ring is greater than the width of the rotating gap. When the driven sealing ring moves toward the sealing rotating plate side, the driven sealing ring covers the rotating gap, so that the sealing rotating plate forms a seal.

[0014] Beneficial effects of the utility model:

[0015] 1. The utility model proposes an axial flow fan induced air duct with a filtering structure. When in actual use, the induced air duct can drive the axial flow fan blades through a motor to form an induced air flow, so as to remove the accumulated heat and moisture in the facility connected to the induced air duct; at the same time, the insect-proof filter arranged on the induced air duct can prevent pests and mice from entering the facility, and the insect-proof filter is a detachable structure, which is easy to clean and replace.

[0016] 2. The utility model proposes an axial flow fan induced air duct with a filtering structure. When facing humid weather such as rainy days, the motor can be started to make the motor drive the rotating shaft of the rotating plate to rotate, and the rotating shaft of the rotating plate drives the sealing rotating plate to rotate ninety degrees in the main body of the pipeline, so that the sealing rotating plate forms a sealing structure for the main body of the pipeline. At the same time, the rotating shaft of the rotating plate drives the rotating shaft bevel gear to rotate, and the rotating shaft bevel gear drives the lead screw bevel gear to rotate, and the lead screw bevel gear drives the driven lead screw to rotate, so that the driven sealing ring moves horizontally until it covers the rotating gap, so that the sealing rotating plate forms a seal, ensuring the sealing of the main body of the pipeline. The structure is simple, beautiful, small in size, easy to operate, and has a strong sealing performance for the main body of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a cross-sectional structural schematic diagram of the utility model.

[0020] Figure 3 It is a rear view structural schematic diagram of the utility model.

[0021] Figure 4 It is a schematic diagram of the specific structure of the plugging component of the utility model.

[0022] Figure 5 It is a schematic diagram of the specific structure of the filter assembly of the utility model.

[0023] In the figure: 100, pipeline body; 101, axial flow fan blades; 102, motor;

[0024] 200, filter assembly; 201, insect-proof filter; 202, mounting frame; 203, fastener;

[0025] 300, blocking assembly; 301, blocking rotating plate; 302, rotating plate rotating shaft; 303, rotating shaft bevel gear; 304, motor; 305, driven sealing ring; 306, driven lead screw; 307, lead screw bevel gear. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0030] Example 1

[0031] Reference Figure 3 and 4 , which is the first embodiment of the utility model, provides an axial flow fan air duct with a filtering structure, including a duct body 100 and a filtering assembly 200 and a blocking assembly 300 arranged at both ends of the duct body 100;

[0032] The pipeline body 100 is provided with axial flow fan blades 101 and a motor 102 for driving the axial flow fan blades 101 to rotate; the cross section of the pipeline body 100 is a rectangular structure, and the driven sealing ring 305 is structurally adapted to the pipeline body 100;

[0033] The filter assembly 200 includes an insect-proof filter 201, a mounting frame 202 and a fastener 203. The mounting frame 202 is fixed on the inner cavity wall of the pipeline body 100. The rear side wall of the insect-proof filter 201 is arranged close to the mounting frame 202. The fastener 203 is arranged on the mounting frame 202. The front end of the fastener 203 is connected and fixed to the insect-proof filter 201. The cross-section of the fastener 203 is a T-shaped structure. The rear end of the fastener 203 is rotatably connected to the mounting frame 202. The fastener 203 is fixed at the four corners of the mounting frame 202. A straight hole is opened on the insect-proof filter 201. After the front end of the T-shaped fastener 203 passes through the straight hole, it is rotated ninety degrees and tightened on the insect-proof filter 201.

[0034] In this embodiment: when in use, the operator first places the insect-proof filter 201 on the pipe body 100, so that the rear side wall of the insect-proof filter 201 is in close contact with the installation frame 202. At the same time, the fastener 203 passes through the straight hole, and then the fastener 203 is manually rotated ninety degrees, so that the rear side wall of the fastener 203 is in close contact with the insect-proof filter 201, thereby achieving the purpose of quickly installing the insect-proof filter 201.

[0035] When the induced air duct is actually used, the motor 102 drives the axial flow fan blades 101 to form an induced air flow, which removes the accumulated heat and moisture in the facility connected to the induced air duct; at the same time, the insect-proof filter 201 arranged on the induced air duct can prevent pests and mice from entering the facility, and the insect-proof filter 201 is a detachable structure, which is easy to clean and replace.

[0036] Example 2

[0037] Reference Figure 1 , 24 is the second embodiment of the utility model, which is different from the first embodiment in that: the blocking assembly 300 includes a blocking rotating plate 301, a rotating plate shaft 302, a rotating shaft bevel gear 303 and a motor 304 that cooperate with each other, and a driven sealing ring 305, a driven lead screw 306 and a lead screw bevel gear 307 that cooperate with each other, the blocking rotating plate 301 is rotatably installed at the other end opening of the pipeline body 100, the rotating plate shaft 302 is vertically fixedly arranged in the middle of the blocking rotating plate 301, one end of the rotating plate shaft 302 passes through the pipeline body 100 and is mechanically connected to the motor 304, and the other end is connected to the rotating shaft bevel gear 303; the rotating shaft bevel gear 303 and the lead screw are connected. The bevel gear 307 is mechanically connected, the screw bevel gear 307 is fixed at one end of the driven screw 306, the other end of the driven screw 306 passes through the driven sealing ring 305 and is mechanically connected to the driven sealing ring 305, and the driven sealing ring 305 is horizontally slidably connected to the pipeline body 100; the width of the sealing rotating plate 301 is smaller than the width of the inner cavity wall of the pipeline body 100, and a rotation gap is left between the sealing rotating plate 301 and the inner cavity wall of the pipeline body 100; the width of the driven sealing ring 305 is larger than the width of the rotation gap. When the driven sealing ring 305 completes moving toward the side of the sealing rotating plate 301, the driven sealing ring 305 covers the rotation gap, so that the sealing rotating plate 301 forms a seal.

[0038] The remaining structures are the same as those of Example 1.

[0039] In this embodiment: when facing humid weather such as rainy days, the motor 304 can be started so that the motor 304 drives the rotating plate shaft 302 to rotate, and the rotating plate shaft 302 drives the sealing rotating plate 301 to rotate ninety degrees in the pipeline body 100, so that the sealing rotating plate 301 forms a preliminary sealing structure for the pipeline body 100, and at the same time, the rotating plate shaft 302 drives the rotating shaft bevel gear 303 to rotate, and the rotating shaft bevel gear 303 drives the lead screw bevel gear 307 to rotate, and the lead screw bevel gear 307 drives the driven lead screw 306 to rotate, so that the driven sealing ring 305 moves horizontally until it covers the rotating gap, so that the sealing rotating plate 301 forms a seal, ensuring the sealing of the pipeline body 100, with a simple structure, beautiful appearance, small space occupation, easy operation, and strong sealing of the pipeline body 100.

[0040] It is worth noting that the entire device is controlled by a controller. Since the controller is a commonly used device and belongs to the existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An axial flow fan air duct with a filtering structure, characterized in that: It comprises a pipeline body (100) and a filtering assembly (200) and a plugging assembly (300) arranged at both ends of the pipeline body (100); The filter assembly (200) comprises an insect-proof filter (201), a mounting frame (202) and a fastener (203); the mounting frame (202) is fixed on the inner cavity wall of the pipeline body (100); the rear side wall of the insect-proof filter (201) is arranged close to the mounting frame (202); the fastener (203) is arranged on the mounting frame (202); and the front end of the fastener (203) is connected to and fixed to the insect-proof filter (201); The plugging assembly (300) comprises a plugging rotating plate (301), a rotating plate rotating shaft (302), a rotating shaft bevel gear (303) and a motor (304) which are used in conjunction with each other, and a driven sealing ring (305), a driven lead screw (306) and a lead screw bevel gear (307) which are used in conjunction with each other. The plugging rotating plate (301) is rotatably mounted at the other end opening of the pipeline body (100). The rotating plate rotating shaft (302) is vertically fixedly arranged in the middle of the plugging rotating plate (301). One end of the driven lead screw (306) passes through the pipeline body (100) and is mechanically connected to the motor (304), and the other end is connected to the rotating shaft bevel gear (303); the rotating shaft bevel gear (303) is mechanically connected to the lead screw bevel gear (307), the lead screw bevel gear (307) is fixed to one end of the driven lead screw (306), the other end of the driven lead screw (306) passes through the driven sealing ring (305) and is mechanically connected to the driven sealing ring (305), and the driven sealing ring (305) is horizontally slidably connected to the pipeline body (100).

2. The axial flow fan air duct with a filtering structure according to claim 1, characterized in that: The pipeline body (100) is provided with axial flow fan blades (101) and a motor (102) for driving the axial flow fan blades (101) to rotate.

3. The axial flow fan air duct with a filtering structure according to claim 1, characterized in that: The cross section of the pipeline body (100) is a rectangular structure, and the driven sealing ring (305) is structurally adapted to the pipeline body (100).

4. The axial flow fan air duct with a filtering structure according to claim 1, characterized in that: The cross section of the fastener (203) is T-shaped. The rear end of the fastener (203) is rotatably connected to the installation frame (202). The fastener (203) is fixed at the four corners of the installation frame (202). A straight hole is provided on the insect-proof filter (201). After the front end of the T-shaped fastener (203) passes through the straight hole, it is rotated ninety degrees and tightened on the insect-proof filter (201).

5. The axial flow fan air duct with a filtering structure according to claim 1, characterized in that: The width of the sealing rotating plate (301) is smaller than the width of the inner cavity wall of the pipeline body (100), and a rotation gap is left between the sealing rotating plate (301) and the inner cavity wall of the pipeline body (100).

6. The axial flow fan air duct with a filtering structure according to claim 1, characterized in that: The width of the driven sealing ring (305) is greater than the width of the rotating gap. When the driven sealing ring (305) has completed its movement toward the sealing rotating plate (301), the driven sealing ring (305) covers the rotating gap, so that the sealing rotating plate (301) forms a seal.

Images