A vortex flow guide device with variable cross-section

Abstract

The present invention provides a vortex flow guide device with a variable cross-section, which relates to the field of pipeline flow guide; its structure comprises an adjustable blade mechanism with multiple blades and a flip driving mechanism for driving the blades to flip; each of the blades is arranged around the axis of the pipeline; the blades are equipped with a flip shaft, and the flip shaft is arranged along the radial direction of the pipeline; the present invention enables multiple blades in the pipeline to flip back and forth through the mutual cooperation of various components of the adjustable blade mechanism and the flip driving mechanism, the flow cross-sectional area of ​​the pipeline changes, the flow velocity in the pipeline is increased, and a vortex cyclone is formed to further accelerate the airflow, and the airflow speed increases to carry away impurities, thereby preventing the impurities from settling in the pipeline.

Description

Technical Field

[0001] The invention relates to the field of pipeline flow guidance, and in particular to a vortex flow guidance device with a variable cross-section. Background Art

[0002] Exhaust ducts are widely used in industry and life. They are mainly used to discharge fumes generated by cooking activities in residential kitchens or foul air in bathrooms, as well as industrial waste gas. They can effectively transfer gases from indoors to outdoors so that the gases do not remain, effectively ensuring indoor air quality.

[0003] However, while it brings convenience, as the usage time increases and the length of the pipeline increases, the air pressure in the pipeline decreases, the flow rate decreases, and the longer the transmission pipeline is, the more impurities will be deposited on the pipeline, including sulfur dioxide, particles, and oil smoke, which can easily cause the pipeline to be blocked, affecting the quality of emissions and breeding bacteria and mosquitoes. In addition, due to the structure of the exhaust pipe, it is not conducive to cleaning by personnel. Summary of the invention

[0004] The present invention provides a vortex guide device with a variable cross-section, aiming to improve the technical problems in the prior art that the circulating air pressure in the pipeline is reduced, the flow velocity is reduced, and the transmission pipeline is long, which will cause a large amount of impurities to be deposited on the pipeline, including sulfur dioxide, particles and oil smoke.

[0005] A vortex guide device with a variable cross-section includes an adjustable blade mechanism with multiple blades and a flip driving mechanism for driving the blades to flip; each of the blades is arranged around the axis of a pipeline; the blades are equipped with a flip shaft, and the flip shaft is arranged along the radial direction of the pipeline.

[0006] Furthermore, the fan blades are arranged in an overlapping manner in a circular manner around the central axis of the pipeline.

[0007] Furthermore, the adjustable fan blade mechanism includes a plurality of levers for driving each of the flip shafts to rotate, and a plurality of pressure rods for driving one end of each of the levers to press down; a first rotation shaft is provided at the connection between each of the pressure rods and each of the levers, one end of each of the pressure rods is connected to the rotation shaft of each of the levers through the first rotation shaft, and a second rotation shaft is provided at the other end of each of the pressure rods.

[0008] Furthermore, the flip rotation axis, the first rotation axis and the second rotation axis are parallel to each other.

[0009] Furthermore, the flipping drive mechanism includes a driven circle that drives each of the pressure rods, a connecting frame fixedly connected to the inner side of the driven circle, an elastic component arranged below the connecting frame, a limiting sleeve that fits the gap with the inner side of the driven circle, and a supporting sleeve arranged on the outer side of the driven circle; each of the pressure rods is connected to the driven circle through a second rotating shaft.

[0010] Furthermore, the lower end of the elastic component is supported on the bottom wall of the limiting sleeve, and the limiting sleeve is fixedly connected to the supporting sleeve.

[0011] Furthermore, a plurality of first through holes corresponding to the positions of the flip shafts are evenly distributed on the upper end of the support sleeve.

[0012] Furthermore, a plurality of limiting rails for limiting the connection frame are provided at the upper end of the limiting sleeve.

[0013] Furthermore, the flipping drive mechanism also includes a traction rope for driving the driven coil to rise and fall, a guide mechanism for guiding the traction rope, a reciprocating mechanism for driving the traction rope to reciprocate, and a drive motor for driving the reciprocating mechanism to rotate.

[0014] Furthermore, one end of the traction rope is connected to the reciprocating mechanism, and the other end passes through the supporting sleeve, the limiting sleeve, the bottom end of the elastic component and is connected to the middle part of the connecting frame in sequence.

[0015] Furthermore, a second through hole is provided in the middle of the bottom end of the limiting sleeve for the traction rope to pass through.

[0016] Furthermore, a third through hole is provided in the middle of the bottom end of the support sleeve for the traction rope to pass through.

[0017] Furthermore, the elastic component, the limiting sleeve, the driven ring, the supporting sleeve and the pipeline housing are nested with each other from the inside to the outside and are located on the same central axis.

[0018] Furthermore, it also includes a pipeline pressure sensor.

[0019] Furthermore, the present invention is installed on a pipeline shell, and a fourth through hole is provided on a side of the pipeline shell for the traction rope to pass through.

[0020] Furthermore, the guide mechanism includes a roller, and the roller is fixedly supported by a roller support rod in the middle of the inner side of the pipeline housing.

[0021] Furthermore, the elastic component is a return spring.

[0022] Furthermore, the connecting frame is a cross connecting frame.

[0023] Furthermore, the fan blade flipping angle is 0 to 85 degrees.

[0024] Furthermore, the fan blade flipping angle is 70°.

[0025] Furthermore, the traction rope is a steel wire rope.

[0026] Beneficial effects:

[0027] The present invention enables multiple blades in the pipeline to flip back and forth through the mutual cooperation of various components of the adjustable fan blade mechanism and the flip drive mechanism, so that the flow cross-sectional area of ​​the pipeline changes, the flow velocity in the pipeline is increased, and a vortex cyclone is formed to further accelerate the airflow. The increased speed of the airflow carries away impurities and prevents impurities from settling in the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is an exploded structural diagram of a vortex guide device with a variable cross-section according to the present invention;

[0030] Figure 2 It is a structural schematic diagram of the adjustable fan blade mechanism of the present invention;

[0031] Figure 3 This is the use state of a vortex guide device with a variable cross-section according to the present invention. Figure 1 ;

[0032] Figure 4 This is the use state of a vortex guide device with a variable cross-section according to the present invention. Figure 2 ;

[0033] Figure 5 It is a structural schematic diagram of the support sleeve of the present invention;

[0034] Figure 6 It is a structural schematic diagram of the limiting sleeve of the present invention.

[0035] In the figure: fan blades-1, flip shaft-2, lever-3, first shaft-4, pressure rod-5, second shaft-6, driven coil-7, connecting frame-8, limiting sleeve-9, elastic component-10, supporting sleeve-11, roller-12, roller supporting rod-13, traction rope-14, driving motor-15, pipeline shell-16. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0037] Example

[0038] See also Figures 1 to 6 An embodiment of the present invention provides a vortex guide device with a variable cross-section, comprising an adjustable blade mechanism having a plurality of blades 1 and a flip driving mechanism for driving the blades to flip; each of the blades 1 is arranged around the axis of the pipeline; the blades are provided with a flip shaft 2, and the flip shaft 2 is arranged along the radial direction of the pipeline; the flip driving mechanism of the present invention drives the adjustable blade mechanism to operate, and the adjustable blade mechanism drives the plurality of blades in the pipeline to flip so that the flow cross-sectional area of ​​the pipeline changes, increasing the flow velocity in the pipeline while forming a vortex cyclone to further accelerate the airflow, and the airflow speed increases to carry away impurities, thereby preventing impurities from settling in the pipeline.

[0039] Specifically, the design of the fan blades 1 being arranged in a circular and overlapping manner around the central axis of the pipeline can enable the fan blades 1 to generate stronger vortices when they are turned over.

[0040] like Figure 2 The adjustable fan blade mechanism includes a plurality of levers 3 for driving each of the flip shafts 2 to rotate, and a plurality of pressure rods 5 for driving one end of each of the levers 3 to press down; a first rotation shaft 4 is provided at the connection between each of the pressure rods 5 and each of the levers 3, one end of each of the pressure rods 5 is connected to the rotation shaft of each of the levers 3 through the first rotation shaft 4, and the other end of each of the pressure rods 5 is provided with a second rotation shaft 6; when the pressure rod 5 is pulled downward, the pressure rod 5 drives the end of the lever 3 equipped with the first rotation shaft 4 to rotate downward, and the other end of the lever 3 is fixedly connected to the flip shaft 2, and the lever 3 drives the flip shaft 2 to rotate, and the fan blade 1 flips upward under the drive of the flip shaft 2, thereby driving the fan blade 1 to flip.

[0041] In order to ensure that each component of the adjustable blade mechanism can drive the blade 1 to flip, the flip shaft 2, the first shaft 4 and the second shaft 6 are parallel to each other.

[0042] The flip driving mechanism includes a driven circle 7 that drives each of the pressure rods 5, a connecting frame 8 fixedly connected to the inner side of the driven circle 7, an elastic component 10 arranged below the connecting frame 8, a limiting sleeve 9 that is clearance-matched with the inner side of the driven circle 7, and a supporting sleeve 11 arranged on the outer side of the driven circle 7; each of the pressure rods 5 is connected to the driven circle 7 through a second rotating shaft 6; the present invention realizes pulling the pressure rod 5 downward through the driven circle 7, and drives the driven circle 7 to rise and fall through the connecting frame 8; a plurality of limiting rails 901 for limiting the connecting frame 8 are arranged on the upper end of the limiting sleeve 9; the limiting sleeve 9 plays a limiting role in the rising and falling of the connecting frame 8 and the driven circle 7 through the limiting rails 901.

[0043] The lower end of the elastic component 10 is supported on the bottom wall of the limiting sleeve 9 , and the limiting sleeve 9 is fixedly connected to the supporting sleeve 11 .

[0044] A plurality of first through holes 1101 corresponding to the positions of the flip shafts 2 are evenly distributed on the upper end of the support sleeve 11 , and the flip shafts 2 pass through the first through holes 1101 to be movably connected to the inner wall of the pipe housing 16 .

[0045] like Figure 1 As shown, the flipping drive mechanism also includes a traction rope 14 for driving the driven coil 7 to rise and fall, a guide mechanism for guiding the traction rope 14, a reciprocating mechanism that drives the traction rope 14 to reciprocate (not shown in the figure), and a drive motor 15 that drives the reciprocating mechanism to rotate; the guide mechanism includes a roller 12, and the roller 12 is fixedly supported on a roller support rod 13 in the middle of the inner side of the pipe shell 16.

[0046] One end of the traction rope 14 is connected to the reciprocating mechanism, and the other end passes through the support sleeve 11, the limiting sleeve 9, the bottom end of the elastic component 10 in sequence and is connected to the middle of the connecting frame 8. The traction rope 14 drives the connecting frame 8 to rise and fall.

[0047] The middle part of the bottom end of the limiting sleeve 9 is provided with a second through hole 902 through which the traction rope 14 can pass.

[0048] A third through hole 1102 is provided in the middle of the bottom end of the support sleeve 11 for the traction rope 14 to pass through.

[0049] The elastic component 10 , the limiting sleeve 9 , the driven coil 7 , the supporting sleeve 11 and the pipe housing 16 are mutually nested from the inside to the outside in sequence and are located on the same central axis.

[0050] Furthermore, the present invention also includes a pipeline pressure sensor. By adding a pipeline pressure sensor, the air pressure in the pipeline is monitored. When the air pressure in the pipeline is less than or greater than the set value, the drive motor 15 is automatically controlled to start, thereby driving the flip drive mechanism and the adjustable fan blade mechanism to rotate and generate eddy currents, thereby realizing automatic opening and closing of the device and achieving automation.

[0051] The present invention is installed on a pipe housing 16 , and a fourth through hole 1601 is provided on the side of the pipe housing 16 for the traction rope 14 to pass through. The drive motor 15 and the reciprocating mechanism can be installed on the outside of the pipe housing 16 through the fourth through hole 1601 .

[0052] The elastic component 10 is a return spring, and the elastic component 10 plays a return role for the entire device.

[0053] The connecting frame 8 is a cross connecting frame, and the structure of the cross connecting frame ensures that the connecting frame 8 is better connected to the traction rope 14. At the same time, when the cross connecting frame is fixedly connected to the inner side of the driven coil 7, the structure is more stable.

[0054] The flipping angle of the fan blade 1 is 70°, but when the flipping angle is 70°, the best gas vortex can be generated when the fan blade 1 flips.

[0055] The traction rope 14 is a steel wire rope. The use of the steel wire rope material ensures that the traction rope 14 can withstand sufficient traction force and prevents the traction rope 14 from breaking during use.

[0056] like Figure 1 As shown, the working principle of the present invention is:

[0057] The present invention drives the reciprocating mechanism to rotate by driving the motor 15, and the reciprocating mechanism drives the traction rope 14 to move back and forth. One end of the traction rope 14 is connected to the reciprocating mechanism, and the other end passes around the roller 12, passes through the support sleeve 16, the limit sleeve 9 and the middle part of the spring to be connected to the connecting frame 8. When the reciprocating mechanism pulls the traction rope 14, the traction rope 14 is subjected to the tension and drives the connecting frame 8 to move downward along the limit track 7, and the elastic component 10 is squeezed, driving the driven ring 7 fixedly connected to the connecting frame 8 to move downward;

[0058] Further, such as Figure 2 As described, when the driven coil 7 moves downward, the driven coil 7 pulls the pressure rod 5 downward through the second rotating shaft 6, and the pressure rod 5 drives the end of the lever 3 equipped with the first rotating shaft 4 to rotate downward, and the other end of the lever 3 is fixedly connected to the flip rotating shaft 2, and the lever 3 drives the flip rotating shaft 2 to rotate, and the fan blade 1 is flipped upward under the drive of the flip rotating shaft 2; when the reciprocating mechanism operates to no longer pull the traction rope 14, under the elastic action of the elastic component 10, the elastic component 10 moves the connecting frame 8 upward along the limiting track 7, and the connecting frame 8 drives the driven coil 7 to be lifted upward along the outer side of the limiting sleeve 9, and the various components of the adjustable fan blade mechanism and the flip driving mechanism are reset;

[0059] Through the reciprocating operation of the device, multiple fan blades 1 can be turned back and forth at the same time. Under the action of the reciprocating turning of multiple fan blades 1, vortex is generated in the pipeline, thereby increasing the air pressure flow rate in the pipeline, removing impurities in the pipeline, and preventing impurities from clogging the pipeline.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vortex guide device with a variable cross-section, characterized in that: It comprises an adjustable blade mechanism having a plurality of blades (1) and a flip driving mechanism for driving the blades to flip; each of the blades (1) is arranged around the axis of the pipeline; the blades are provided with a flip shaft (2), and the flip shaft (2) is arranged along the radial direction of the pipeline; The adjustable fan blade mechanism comprises a plurality of levers (3) for driving each of the flip shafts (2) to rotate, and a plurality of pressure rods (5) for driving one end of each of the levers (3) to press downward; a first rotation shaft (4) is provided at the connection between each of the pressure rods (5) and the corresponding lever (3); one end of each of the pressure rods (5) is connected to the corresponding lever (3) rotation shaft through the first rotation shaft (4); and a second rotation shaft (6) is provided at the other end of each of the pressure rods (5); The flip driving mechanism comprises a driven ring (7) for driving each of the pressure rods (5), a connecting frame (8) fixedly connected to the inner side of the driven ring (7), an elastic component (10) arranged below the connecting frame (8), a limiting sleeve (9) with a clearance fit with the inner side of the driven ring (7), and a supporting sleeve (11) arranged on the outer side of the driven ring (7); each of the pressure rods (5) is connected to the driven ring (7) via a second rotating shaft (6), the lower end of the elastic component (10) is supported on the bottom wall of the limiting sleeve (9), and the limiting sleeve (9) is fixedly connected to the supporting sleeve (11).

2. A vortex guide device with a variable cross-section according to claim 1, characterized in that: The fan blades (1) are arranged in an overlapping manner in a circular manner around the central axis of the pipeline.

3. A vortex guide device with a variable cross-section according to claim 1, characterized in that: The flip shaft (2), the first shaft (4) and the second shaft (6) are parallel to each other.

4. A vortex guide device with a variable cross-section according to claim 1, characterized in that: A plurality of first through holes (1101) corresponding to the positions of the respective flip shafts (2) are evenly distributed on the upper end of the support sleeve (11).

5. A vortex guide device with variable cross-section according to claim 4, characterized in that: The upper end of the limiting sleeve (9) is provided with a plurality of limiting rails (901) for limiting the position of the connecting frame (8).

6. A vortex guide device with variable cross-section according to claim 5, characterized in that: The flipping drive mechanism also includes a traction rope (14) for driving the driven coil (7) to rise and fall, a guide mechanism for guiding the traction rope (14), a reciprocating mechanism for driving the traction rope (14) to reciprocate, and a driving motor (15) for driving the reciprocating mechanism to rotate.

7. A vortex guide device with variable cross-section according to claim 6, characterized in that: One end of the traction rope (14) is connected to the reciprocating mechanism, and the other end passes through the supporting sleeve (11), the limiting sleeve (9), the elastic component (10) in sequence and is connected to the middle part of the connecting frame (8).

8. A vortex guide device with variable cross-section according to claim 7, characterized in that: A second through hole (902) is provided in the middle of the bottom end of the limiting sleeve (9) for the traction rope (14) to pass through.

9. A vortex guide device with a variable cross-section according to claim 8, characterized in that: A third through hole (1102) is provided in the middle of the bottom end of the support sleeve (11) for the traction rope (14) to pass through.

10. A vortex guide device with variable cross-section according to claim 9, characterized in that: The elastic component (10), the limiting sleeve (9), the driven ring (7) and the supporting sleeve (11) are mutually nested from the inside to the outside in sequence and are located on the same central axis.

11. A vortex guide device with variable cross-section according to claim 10, characterized in that: Also includes a pipeline pressure sensor.

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