Upper air gathering barrel structure of fan

Abstract

The utility model belongs to the technical field of fans, and discloses an upper air gathering barrel structure of a fan, which comprises a barrel body mounted on a fan frame, a barrel door is rotatably mounted on the inner wall of the barrel body close to the fan frame, and a first sealing strip and a second sealing strip are further fixedly mounted on the inner wall of the barrel body. The first sealing strip and the second sealing strip are located on the two sides of the cylinder door respectively and are arranged in a central symmetry mode with a rotating shaft of the cylinder door as the center, and a first sealing ring and a second sealing ring are fixedly installed on the outer circular face of the cylinder door. The air gathering cylinder is simple in overall structure, the opening degree of the cylinder door of the air gathering cylinder can be flexibly adjusted, the good sealing effect is achieved when the cylinder door is closed, the maintenance cost is reduced, and the using effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of fan, specifically relates to a fan wind collecting cylinder structure. BACKGROUND

[0002] In the technical field of fan, the wind collecting cylinder is a core component for optimizing airflow distribution, has a novel and reasonable horn mouth design, can concentrate working air volume to a specific position, form greater air volume and more stable air pressure, and thus enhance the ventilation effect of the fan. For example, in poultry and livestock breeding, the fan blows air to the breeding area to improve air circulation and adjust temperature, and the addition of the wind collecting cylinder can realize the effect of concentrating and enhancing air force, so that the air circulation in the shed is smoother.

[0003] The wind collecting cylinder is usually equipped with a cylinder door in existing applications, which facilitates internal maintenance, can adjust the ventilation volume, balance the system pressure, prevent foreign matter from entering, and protect the fan.

[0004] The cylinder door has a sealing effect and can avoid air backflow. When multiple fans are started at different times according to environmental conditions, if the cylinder door of the wind collecting cylinder is not tightly sealed, outdoor air will enter the system from the fan that stops running. This will destroy the adjusted airflow environment and affect the efficiency of the running fan. Taking the ventilation system of a farm as an example, if air backflow occurs, air carrying bacteria or odors from the outside may be introduced into the shed, which endangers the health of poultry and livestock and disturbs the balance of temperature, humidity and air quality in the shed

[0005] Under normal circumstances, the cylinder door adopts a butterfly door structure, which directly affects the ventilation efficiency and system stability. The existing technology generally adopts a fixed or simply hinged butterfly door design, and the opening degree is adjusted through a manual knob or a connecting rod mechanism, which causes the adjustment precision to deteriorate, the sealing surface to be easily worn, and the maintenance cost to be high.

[0006] A Chinese patent with application number CN202123026795.8 discloses a fan and a butterfly door opening mechanism thereof, which comprises a centrifugal mechanism that extends and retracts with the fan, a connecting rod mechanism that controls the opening and closing of the butterfly door with the rotation of the centrifugal mechanism, and a push rod that fixedly connects the centrifugal mechanism and the connecting rod mechanism. The centrifugal mechanism is coaxially fixedly connected to the fan blade on the fan. The connecting rod mechanism is coaxially fixedly connected to the butterfly door on the butterfly door. One end of the push rod is hingedly connected with a hinge column, and the other end is hingedly connected with a bearing. The hinge column is fixedly connected to the connecting rod mechanism, and the bearing is rotationally connected to the centrifugal mechanism. The opening mechanism is used to replace the commonly used electric opening products on the market, which significantly reduces the cost, is reliable in structure, durable and easy to maintain. The butterfly door can be self-locked under the action of the connecting rod mechanism and the return spring, which avoids self-opening of the butterfly door under non-power conditions and avoids the problems of light leakage and air backflow.

[0007] The butterfly door opening is controlled by a connecting rod mechanism, the opening degree of the barrel door cannot be adjusted, and the sealing effect is poor when the barrel door is closed. Utility model content

[0008] The utility model provides a whole structure simple, can adjust the opening degree of the barrel door of the wind barrel flexibly, and has good sealing effect when the barrel door is closed, reduces the fan upper wind barrel structure of maintenance cost.

[0009] To solve the above technical problems, the utility model provides the following technical scheme:

[0010] A fan upper wind barrel structure, including the barrel body installed on the fan frame, the barrel door is rotatably installed on the inner wall of the barrel body near the position of the fan frame, the first sealing strip and the second sealing strip are also fixedly installed on the inner wall of the barrel body, the first sealing strip and the second sealing strip are respectively located at the position of the two sides of the barrel door, the first sealing strip and the second sealing strip are symmetrically arranged with the rotation shaft of the barrel door as the center, the first sealing ring and the second sealing ring are fixedly installed on the outer circular surface of the barrel door.

[0011] The first sealing ring can be in contact with the first sealing strip, and the second sealing ring can be in contact with the second sealing strip

[0012] The following is the further optimization of the utility model to the above technical scheme:

[0013] The mounting plate is fixedly installed on the outer surface of the barrel body near the middle position, the motor is vertically arranged on the mounting plate, and the power output end of the motor penetrates the mounting plate and the outer wall of the barrel body and extends to the inside of the barrel body.

[0014] Further optimization: the first rotating shaft is fixedly installed on the outer surface of the barrel door corresponding to the position of the motor, the first rotating shaft is fixedly connected with the power output end of the motor, the second rotating shaft is fixedly installed on the outer surface of the barrel door corresponding to the position of the first rotating shaft, the first rotating shaft and the second rotating shaft are symmetrically arranged, and the second rotating shaft is rotatably installed on the inner wall of the barrel body through the bearing.

[0015] Further optimization: the first sealing strip, the second sealing strip, the first sealing ring and the second sealing ring are all made of rubber material.

[0016] Further optimization: a plurality of third magnets are uniformly and intervaliy arranged on the opposite side of the first sealing ring and the first sealing strip, and a plurality of first magnets are uniformly and intervaliy arranged on the opposite side of the first sealing ring and the first sealing strip.

[0017] Further optimization: the positions of the plurality of first magnets and the plurality of third magnets correspond to each other and are different in magnetic properties.

[0018] Further optimization: the second sealing strip and the second sealing ring are provided with a plurality of second magnets and fourth magnets respectively.

[0019] Further optimization: the second magnets and the fourth magnets are opposite in position and different in magnetism.

[0020] The utility model discloses the above-mentioned technical scheme, clever design, reasonable structure can be in the fan use process, according to demand, the opening and closing of cylinder door are automatically controlled, and can control the opening of cylinder door according to demand, adjust ventilation efficiency at any time, in addition, when the fan stops working, needs the cylinder door to close, through setting first magnet, second magnet, third magnet and fourth magnet, guarantee the sealing effect of first sealing ring and first sealing strip, and the sealing effect of second sealing ring and second sealing strip, effectively avoid that outdoor air enters from the stopped fan, improve the fan work efficiency.

[0021] The utility model is further illustrated below in connection with the drawings and examples. DRAWINGS

[0022] Figure 1 It is the installation schematic drawing of overall structure in the utility model embodiment;

[0023] Figure 2 It is the front view of overall structure in the utility model embodiment;

[0024] Figure 3 It is the utility model embodiment Figure 2 A-A section view;

[0025] Figure 4 It is the utility model embodiment Figure 3 B structure enlarged view;

[0026] Figure 5 It is the utility model embodiment Figure 3 C structure enlarged view;

[0027] Figure 6 It is the structure schematic drawing of cylinder door opening in the utility model embodiment;

[0028] Figure 7 It is the structure schematic drawing of cylinder door in the utility model embodiment.

[0029] In the drawing: 1, cylinder body;11, L type installation support;12, mounting plate;2, motor;3, cylinder door;31, first rotation axis;32, second rotation axis;33, first sealing ring;34, third magnet;35, fourth magnet;36, second sealing ring;4, first sealing strip;41, first magnet;5, second sealing strip;51, second magnet;6, fan frame. DETAILED DESCRIPTION

[0030] As Figures 1-7 shown: a fan on the wind cylinder structure, comprising a cylinder 1 installed on the fan frame 6, the inner wall of the cylinder 1 is rotatably installed with a cylinder door 3 near the fan frame 6, the inner wall of the cylinder 1 is also fixedly installed with a first sealing strip 4 and a second sealing strip 5, the first sealing strip 4 and the second sealing strip 5 are respectively located at both sides of the cylinder door 3, the first sealing strip 4 and the second sealing strip 5 are symmetrically arranged with the rotation axis of the cylinder door 3 as the center, the outer circular surface of the cylinder door 3 is fixedly installed with a first sealing ring 33 and a second sealing ring 36;

[0031] The first sealing ring 33 can be rotatably contacted with the first sealing strip 4, and the second sealing ring 36 can be rotatably contacted with the second sealing strip 5.

[0032] In this embodiment, the fan frame 6 is made of stainless steel plate, which is the same as the frame structure used in the DLFC-1000 butterfly type fan produced by Qingzhou Dalicube Industry and Trade Co., Ltd., and can be obtained by marketing.

[0033] The cylinder 1 is made of stainless steel plate and is bent into a trumpet shape, and the outer surface of the cylinder 1 is annularly arrayed with a plurality of L-shaped mounting brackets 11 near the small end position, and the cylinder 1 is fixedly installed on the fan frame 6 through the plurality of L-shaped mounting brackets 11.

[0034] The fixed installation mode of the L-shaped mounting bracket 11 with the cylinder 1 and the fan frame 6 is achieved by bolts, and the specific connection mode is known, which will not be described here.

[0035] The outer surface of the cylinder 1 is fixedly installed with a mounting plate 12 near the middle position, and the motor 2 is vertically arranged on the mounting plate 12.

[0036] The power output end of the motor 2 penetrates the mounting plate 12 and the outer wall of the cylinder 1 and extends into the inside of the cylinder 1.

[0037] As Figure 7 shown, the outer surface of the cylinder door 3 is fixedly installed with a first rotating shaft 31 corresponding to the position of the motor 2, and the first rotating shaft 31 is fixedly connected with the power output end of the motor 2.

[0038] In this way, the motor 2 can drive the cylinder door 3 to rotate.

[0039] The outer surface of the cylinder door 3 is fixedly installed with a second rotating shaft 32 corresponding to the position of the first rotating shaft 31, and the first rotating shaft 31 and the second rotating shaft 32 are symmetrically arranged.

[0040] The second rotating shaft 32 is rotatably installed on the inner wall of the cylinder 1 through a bearing.

[0041] In this way, the barrel door 3 can rotate on the barrel body 1, and when the barrel door 3 is parallel to the radial direction of the barrel body 1, the barrel body 1 is closed, and when the motor 2 drives the barrel door 3 to rotate 90°, the inside of the barrel body 1 is kept maximum unobstructed.

[0042] The first sealing strip 4, the second sealing strip 5, the first sealing ring 33 and the second sealing ring 36 are all made of rubber.

[0043] When the barrel door 3 is parallel to the radial direction of the barrel body 1, the first sealing ring 33 is in contact with the first sealing strip 4, and the second sealing ring 36 is in contact with the second sealing strip 5 in the closed state of the barrel body 1.

[0044] As shown in the drawings, Figures 3-5 As shown in the drawings, the opposite side of the first sealing ring 33 and the first sealing strip 4 is uniformly and spacedly provided with a plurality of third magnets 34.

[0045] The opposite side of the first sealing strip 4 and the first sealing ring 33 is uniformly and spacedly provided with a plurality of first magnets 41.

[0046] The plurality of first magnets 41 and the plurality of third magnets 34 correspond in position and are different in magnetic property.

[0047] When the first sealing strip 4 and the first sealing ring 33 are in contact, the first sealing strip 4 and the first sealing ring 33 are in close contact under the action of the first magnets 41 and the third magnets 34, thereby improving the sealing effect.

[0048] The opposite side of the second sealing strip 5 and the second sealing ring 36 is uniformly and spacedly provided with a plurality of second magnets 51.

[0049] The opposite side of the second sealing ring 36 and the second sealing strip 5 is uniformly and spacedly provided with a plurality of fourth magnets 35.

[0050] The plurality of second magnets 51 and the plurality of fourth magnets 35 correspond in position and are different in magnetic property.

[0051] When the second sealing strip 5 and the second sealing ring 36 are in contact, the second sealing strip 5 and the second sealing ring 36 are in close contact under the action of the second magnets 51 and the fourth magnets 35, thereby improving the sealing effect.

[0052] In use, when the barrel door 3 needs to be opened, the motor 2 is started, the power output end of the motor 2 rotates to drive the barrel door 3 to rotate, and under the control of the motor 2, the rotation angle of the barrel door 3 is adjusted within the range of 0-90°, so that the opening degree of the barrel door 3 is adjusted.

[0053] When the fan stops working and the cylinder door 3 needs to be closed, the cylinder door 3 is only controlled to be in a position parallel to the radial direction of the cylinder body 1, at this time, under the adsorption of the first magnet 41, the second magnet 51, the third magnet 34 and the fourth magnet 35, the first sealing ring 33 is in sealing contact with the first sealing strip 4, and the second sealing strip 5 is in sealing contact with the second sealing ring 36, effectively avoiding outdoor air from entering from other stopped fans, and improving the working efficiency of the fan.

[0054] For those skilled in the art, according to the teaching of the present application, the changes, modifications, replacements and deformations made to the embodiments without departing from the principles and spirits of the present application still fall within the protection scope of the present application.

Claims

1. A wind turbine upper air collection duct structure, comprising a cylinder (1) mounted on a wind turbine frame (6), characterized in that: A cylinder door (3) is rotatably installed on the inner wall of the cylinder (1) near the fan frame (6). A first sealing strip (4) and a second sealing strip (5) are also fixedly installed on the inner wall of the cylinder (1). The first sealing strip (4) and the second sealing strip (5) are located on both sides of the cylinder door (3). The first sealing strip (4) and the second sealing strip (5) are arranged symmetrically around the rotation axis of the cylinder door (3). A first sealing ring (33) and a second sealing ring (36) are fixedly installed on the outer circular surface of the cylinder door (3). The first sealing ring (33) is rotatably in contact with the first sealing strip (4), and the second sealing ring (36) is rotatably in contact with the second sealing strip (5).

2. The fan upper air collection duct structure according to claim 1, characterized in that: An mounting plate (12) is fixedly installed on the outer surface of the cylinder (1) near the middle position. A motor (2) is vertically arranged on the mounting plate (12). The power output end of the motor (2) passes through the mounting plate (12) and the outer wall of the cylinder (1) and extends into the interior of the cylinder (1).

3. The fan upper air collection duct structure according to claim 2, characterized in that: A first rotating shaft (31) is fixedly installed on the outer surface of the cylinder (3) at a position corresponding to the motor (2). The first rotating shaft (31) is fixedly connected to the power output end of the motor (2). A second rotating shaft (32) is fixedly installed on the outer surface of the cylinder (3) at a position corresponding to the first rotating shaft (31). The first rotating shaft (31) and the second rotating shaft (32) are arranged symmetrically. The second rotating shaft (32) is rotatably installed on the inner wall of the cylinder (1) through a bearing.

4. The fan upper air collection duct structure according to claim 3, characterized in that: The first sealing strip (4), the second sealing strip (5), the first sealing ring (33) and the second sealing ring (36) are all made of rubber.

5. The fan upper air collection duct structure according to claim 4, characterized in that: Multiple third magnets (34) are evenly spaced on the side of the first sealing ring (33) opposite to the first sealing strip (4), and multiple first magnets (41) are evenly spaced on the side of the first sealing strip (4) opposite to the first sealing ring (33).

6. The fan top air collection duct structure according to claim 5, characterized in that: Multiple first magnets (41) are positioned opposite to multiple third magnets (34) and have different magnetic properties.

7. The fan upper air collection duct structure according to claim 6, characterized in that: Multiple second magnets (51) are evenly spaced on the side of the second sealing strip (5) opposite to the second sealing ring (36), and multiple fourth magnets (35) are evenly spaced on the side of the second sealing ring (36) opposite to the second sealing strip (5).

8. The wind turbine upper air collection duct structure according to claim 7, characterized in that: Multiple second magnets (51) are positioned opposite to multiple fourth magnets (35) and have different magnetic properties.

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