Multi-angle vortex ring air supply device

Abstract

This invention discloses a multi-angle vortex ring air supply device, comprising a hollow hemispherical outer shell with an opening at the bottom. An inner ring plate is concentrically arranged on the inner side of the bottom wall of the outer shell, and an inner shell is concentrically arranged on the inner side of the inner ring plate. Four vortex ring nozzles are circumferentially arranged around the center of the inner ring plate between the inner shell and the outer shell. A cutoff hood is concentrically arranged inside the inner shell, and the cutoff hood has an opening that can be aligned with any of the vortex ring nozzles. A connecting post that can pass through the inner shell is provided at the top of the cutoff hood. An indexing drive mechanism for driving the rotation of the cutoff hood is provided between the inner shell and the outer shell. This device has four independent vortex ring nozzles evenly arranged circumferentially. It selectively guides a single nozzle through a single opening of the rotatable cutoff hood, spraying the vortex ring in only one direction at a time. It can achieve directional air supply at four angles (0°, 90°, 180°, and 270°) without the need for multiple devices in parallel, significantly reducing equipment procurement and installation space, avoiding airflow interference problems between multiple units, and improving the consistency of vortex ring formation.

Description

Technical Field

[0001] This invention relates to the field of vortex ring air supply technology, and in particular to a multi-angle vortex ring air supply device. Background Technology

[0002] Vortex air supply relies on airflow compression to form a stable air vortex ring, which has advantages such as long air delivery distance, strong airflow concentration, and no diffusion turbulence. It is widely used in indoor air circulation, local cooling, odor dispersal, industrial dust removal and air supply scenarios.

[0003] However, traditional vortex ring equipment is equipped with only a single vortex ring nozzle, which can only spray the vortex ring in a fixed direction. If multi-directional air supply is required, multiple units must be added, resulting in high equipment costs, large space occupation, and simultaneous operation of multiple units causing mutual airflow interference, significantly reducing the stability of vortex ring formation. A few devices equipped with multiple nozzles lack independent on / off control structures, with multiple nozzles discharging air simultaneously, making it impossible to individually control directional air supply at any angle, leading to serious energy waste.

[0004] In addition, some equipment with rotatable guide fairings often use direct friction sliding of bushings, which leads to increased wear after long-term operation, continuous increase in rotational resistance, and easy jamming or deviation when switching angles; moreover, the direct drive of rotation by ordinary motors cannot accurately index and position, making it difficult for the guide orifice to be completely aligned with the nozzle, resulting in serious airflow leakage and poor vortex ring forming effect. Summary of the Invention

[0005] To address the technical problems existing in the background art, the present invention proposes a multi-angle vortex ring air supply device, comprising a hollow hemispherical outer shell with an opening at the bottom. An inner ring plate is concentrically arranged on the inner side of the bottom wall of the outer shell, and an inner shell is concentrically arranged on the inner side of the inner ring plate. Four vortex ring nozzles are arranged circumferentially around the center of the inner ring plate between the inner shell and the outer shell. A cut-off cover is concentrically arranged inside the inner shell. The cut-off cover has an opening that can be aligned with any of the vortex ring nozzles. A connecting post that can pass through the inner shell is provided at the top of the cut-off cover. An indexing drive mechanism for driving the cut-off cover to rotate is provided between the inner shell and the outer shell.

[0006] Preferably, the inner shell and the outer shell are provided with a pair of mutually aligned connecting holes, and there are four sets of connecting holes, which are respectively connected to both ends of the vortex ring nozzle.

[0007] Preferably, the cut-off cover is a hollow hemispherical shape, and a plurality of lubricating beads are evenly embedded in the bottom wall of the cut-off cover.

[0008] Preferably, a hollow hemispherical inner cover is concentrically arranged on the inner side of the inner shell, the bottom wall of the inner cover is open, the outer extension of the inner cover is provided with an outer ring plate connected to the inner side wall of the inner shell, the upper part of the inner cover is provided with docking holes corresponding to the four vortex ring nozzles, a cavity is left between the inner cover and the inner shell, and the cut-off cover is located in the cavity.

[0009] Preferably, the outer ring plate has an annular groove surrounding the axis of the outer ring plate, and the annular groove is in rolling connection with the lubricating beads.

[0010] Preferably, the indexing drive mechanism includes an indexing plate disposed on a connecting column, with four indexing straight grooves evenly distributed on the outer periphery of the indexing plate, and an outer-attached inner arc groove distributed in the area between adjacent indexing straight grooves.

[0011] Preferably, the indexing drive mechanism further includes: a motor disposed on the top wall of the housing, the output end of the motor being provided with a dial plate adapted to the indexing plate, the dial plate including a round base plate and a circular convex plate concentrically disposed on the round base plate and having a diameter smaller than the round base plate, the circular convex plate being concentric with any outer inner arc groove and in contact in a concentric state, the round base plate being provided with a lever, the lever being able to be engaged in any indexing straight groove.

[0012] Compared with the prior art, the above-mentioned technical solution of the present invention has the following beneficial technical effects: 1. This device has four independent vortex ring nozzles evenly arranged around its circumference. It selectively guides a single nozzle through a single opening of a rotatable cut-off hood, and sprays the vortex ring in only one direction at the same time. It can achieve directional air delivery at four angles of 0, 90, 180 and 270 degrees without the need for multiple devices to be connected in parallel. This greatly reduces the space required for equipment procurement and installation, avoids the problem of airflow interference between multiple units, and results in better consistency in vortex ring formation.

[0013] 2. Multiple lubricating beads are embedded at the bottom of the cut-off cover, which, together with the annular groove on the outer ring plate of the inner cover, form a rolling friction pair, replacing the traditional sliding friction structure. The rotational resistance is extremely small; the wear is low during long-term continuous operation, the angle switching is smooth and without jamming, avoids the guide structure from getting stuck and failing, and extends the service life of the whole machine.

[0014] 3. In this application, the inner cover and inner shell form a double-layered sealed cavity, and the airflow can only form a single air supply channel through the inner cover docking hole, the cut-off cover opening, and the vortex ring nozzle; the cavity gaps are blocked by the layered structure, the high-pressure airflow has no lateral leakage, and all the effective air pressure is supplied to the nozzle, the vortex ring has stronger focusing ability and the air supply distance is longer, which greatly improves the air supply efficiency.

[0015] 4. In this application, the motor drives the actuating disc and the indexing disc to form an intermittent grooved wheel indexing structure: the lever moves the indexing disc to rotate 90 degrees precisely in one go, which matches the circumferential interval of the four nozzles; after the angle switching is completed, the circular convex disc of the actuating disc fits against the outer inner arc groove of the indexing disc to form a rigid limit lock, so that the cut-off cover will not be affected by the airflow impact and will not rotate or deviate during the air supply process, and the inlet and the nozzle will always be completely aligned, preventing airflow leakage and air supply angle deviation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a multi-angle vortex ring air supply device proposed in this invention.

[0017] Figure 2 This is a bottom view of a multi-angle vortex ring air supply device proposed in this invention.

[0018] Figure 3 This is a cross-sectional view of a multi-angle vortex ring air supply device proposed in this invention.

[0019] Figure 4 This is a schematic diagram of the cutoff shield proposed in this invention.

[0020] Figure 5 This is a schematic diagram of the inner cover proposed in this invention.

[0021] Figure 6 This is a diagram showing the installation of a wind source device in an embodiment of the present invention.

[0022] Reference numerals: 1. Outer shell; 2. Vortex nozzle; 3. Cut-off cover; 4. Inner cover; 5. Indexing plate; 6. Actuating plate; 7. Motor; 100. Air source equipment; 12. Inner ring plate; 13. Inner shell; 14. Connecting hole; 31. Opening; 32. Lubricating bead; 33. Connecting post; 41. Outer ring plate; 42. Butt hole; 43. Ring groove. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0024] In the description of the invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of the invention, it should be noted that, unless otherwise explicitly specified and limited, the terms installation, setting, connection, etc., should be interpreted broadly. For example, connection can be a fixed connection, such as welding, riveting, or bonding; it can also be a detachable connection, such as threaded connection, keyed connection, or pin connection; or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] like Figure 1-6 As shown, the present invention proposes a multi-angle vortex ring air supply device, which adopts a multi-layer concentric hemispherical nested structure. The core includes a hollow hemispherical shell 1 with a bottom opening; an inner ring plate 11 is coaxially fixed along the inner side of the bottom wall of the shell 1, and an inner shell 12 is concentrically assembled inside the inner ring plate 11. In the annular sandwich space formed by the inner shell 12 and the shell 1, four vortex ring nozzles 2 are evenly arranged around the central axis.

[0027] A hollow hemispherical cutoff cover 3 is coaxially assembled inside the inner shell 12. The cutoff cover 3 has a single set of openings 31. After rotation, it can be aligned with any vortex ring nozzle 2 to achieve air duct connection. The top of the cutoff cover 3 has an integrally extended connecting column 33. The connecting column 33 extends upward through the inner shell 12. An indexing drive mechanism is set in the upper space enclosed by the inner shell 12 and the outer shell 1. The entire indexing drive mechanism is assembled and cooperated with the connecting column 33 to drive the cutoff cover 3 to rotate concentrically around the center to complete the air supply angle switching.

[0028] To achieve a sealed connection between the two ends of the vortex ring nozzle 2, in this embodiment, a set of coaxially aligned connecting holes 13 are opened at the position of each vortex ring nozzle 2 on the inner shell 12 and the outer shell 1. The four sets of connecting holes 13 are arranged circumferentially, corresponding to the two ends of the four vortex ring nozzles 2 respectively, so that the two ends of the nozzles are connected to the outer side of the outer shell 1 and the inner cavity of the inner shell 12 respectively.

[0029] like Figure 4 As shown, the cut-off cover 3 is a hollow hemispherical shape, with multiple lubricating beads 32 evenly embedded on its bottom end face; corresponding to the lubricating bead 32 support structure, a hollow hemispherical inner cover 4 is also coaxially assembled inside the inner shell 12. The bottom of the inner cover 4 is also an open structure. The outer edge of the inner cover 4 extends outward to form an outer ring plate 41. The outer edge of the outer ring plate 41 is fixedly connected to the inner wall of the inner shell 12. Four sets of docking holes 42 are opened on the top surface of the inner cover 4, which correspond one-to-one with the four vortex ring nozzles 2; an annular cavity is reserved between the inner cover 4 and the inner shell 12, and the aforementioned cut-off cover 3 is housed inside the cavity.

[0030] An annular groove is formed around the central axis on the upper surface of the extended ring plate 41. The lubricating beads 32 embedded in the bottom of the cut-off cover 3 are embedded in the annular groove 43 to form a rolling pair. When the cut-off cover 3 rotates, it relies on the lubricating beads 32 to roll along the annular groove 43 for support, thereby reducing rotational friction resistance.

[0031] like Figure 3 As shown, in this embodiment, the indexing drive mechanism is divided into two parts: a driven indexing component and an active actuating component. The driven component is an indexing plate 5 fixedly mounted on the protruding end of the connecting column 33. Four indexing straight grooves are evenly opened on the outer circumference of the indexing plate 5, and an outer inner arc groove is formed between the outer edges of every two adjacent indexing straight grooves. The active drive component is a motor 7 installed on the inner top wall of the outer shell 1. The output shaft of the motor 7 is fixedly connected to an actuating plate 6 that matches the indexing plate 5. The actuating plate 6 is composed of a lower circular base plate and an upper concentric circular convex plate. The outer diameter of the circular convex plate is smaller than that of the circular base plate. The circular convex plate can be embedded in any outer inner arc groove of the indexing plate 5 and concentrically fitted and limited. A lever is vertically arranged on the circular base plate. When the lever rotates with the actuating plate 6, it can be engaged in any indexing straight groove of the indexing plate 5, driving the indexing plate 5, the connecting column 33 and the cut-off cover 3 to rotate synchronously in an indexing manner. The workflow of the technical solution in the above embodiments is as follows: In the initial state, the cut-off cover 3 is located in the cavity between the inner cover 4 and the inner shell 12. The bottom lubricating bead 32 is engaged in the annular groove 43 of the outer ring plate 41 to achieve rolling support. The opening 31 of the cut-off cover 3 does not coincide with the docking hole 42 of any vortex ring nozzle 2. All vortex ring nozzles 2 are in a closed cut-off state, with no airflow entering the nozzle and no vortex ring output. At the same time, the circular convex plate of the actuating disk 6 is attached to one of the outer inner arc grooves of the indexing disk 5, and the lever is disengaged from the indexing straight groove. The indexing disk 5 and the cut-off cover 3 are rigidly locked and will not rotate on their own.

[0032] At the next moment, the bottom air source device 100 and the drive motor 7 at the top of the outer casing 1 are simultaneously activated; the air source device 100 generates high-pressure airflow, which is sent into the sealed chamber inside the inner cover 4 from the bottom opening of the device. The airflow is constrained by the double-layer cavity of the inner cover 4 and the inner shell 12, and can only flow outward through the four sets of docking holes 42 on the inner cover 4, waiting for the corresponding channel to be opened by the through port 31 of the cut-off cover 3. The motor 7 continuously drives the output end to rotate the toggle plate 6 around the central axis at a uniform speed.

[0033] During the rotation of the dial 6, the lever on it gradually approaches the indexing groove on the outer periphery of the indexing plate 5; when the lever is engaged in the indexing groove, the indexing plate 5 is driven to rotate rapidly by 90 degrees by the pushing force of the lever, and the indexing plate 5 drives the cut-off cover 3 to rotate synchronously by 90 degrees in the cavity of the inner cover 4 through the connecting column 33. During rotation, the lubricating beads 32 at the bottom of the cut-off cover 3 roll along the annular groove 43, rotating smoothly with low resistance throughout without friction or jamming. After completing 90 degrees of rotation, the lever disengages from the indexing straight groove, and the circular convex disc at the center of the actuating disk 6 fits into the next outer inner arc groove. The indexing disk 5 and the cut-off cover 3 are locked and fixed by the arc fitting limit. At this time, the through port 31 on the cut-off cover 3 is precisely aligned with the inner cover 4 docking hole 42 corresponding to one of the vortex ring nozzles 2, and the inner shell 12 and outer shell 1 docking hole 42, and the complete air duct is connected.

[0034] The high-pressure airflow inside the inner cover 4 passes through the aligned inner cover 4 docking hole 42, the cut-off cover 3 through hole 31, and the inner shell 12 docking hole 42 in sequence, and finally enters the vortex ring nozzle 2 in the corresponding direction; the airflow is squeezed and formed inside the vortex ring nozzle 2, and the stable and concentrated air vortex ring is ejected outward to achieve directional air delivery at a single angle. In the locked state, the cutoff cover 3 will not deviate due to airflow impact, the air duct is fully open throughout, there is no airflow leakage, and the vortex ring range and forming effect are stable. The other three misaligned vortex ring nozzles 2 are blocked by the solid wall of the cutoff cover 3, no airflow passes through them, and no turbulence will be generated to interfere with the current air delivery direction.

[0035] Motor 7 continuously drives the dial 6 to rotate cyclically. Each rotation will cause the lever to engage with the four indexing slots in sequence. Each turn will drive the cut-off cover 3 to rotate 90 degrees and lock it, switching to the other three vortex ring nozzles 2 in sequence. This cycle repeats, and the device can spray vortex rings at four different circumferential angles in sequence to achieve large-range multi-angle circulating air supply.

[0036] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of the invention and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of the invention should be included within the protection scope of the invention. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A multi-angle vortex ring air supply device, characterized in that, The shell includes a hollow hemispherical shell (1), with an opening at the bottom. An inner ring plate (11) is concentrically arranged on the inner side of the bottom wall of the shell (1). An inner shell (12) is concentrically arranged on the inner side of the inner ring plate (11). Four vortex ring nozzles (2) are arranged circumferentially around the center of the inner ring plate (11) between the inner shell (12) and the shell (1). A cutoff cover (3) is concentrically arranged inside the inner shell (12). A through-hole (31) is provided on the cutoff cover (3) so that it can be aligned with any of the vortex ring nozzles (2). A connecting post (33) that can pass through the inner shell (12) is provided on the top of the cutoff cover (3). An indexing drive mechanism for driving the cutoff cover (3) to rotate is provided between the inner shell (12) and the shell (1).

2. The multi-angle vortex ring air supply device according to claim 1, characterized in that: The inner shell (12) and the outer shell (1) are provided with a pair of mutually aligned connecting holes (13). There are four sets of connecting holes (13), which are respectively connected to both ends of the vortex ring nozzle (2).

3. The multi-angle vortex ring air supply device according to claim 1, characterized in that: The cut-off cover (3) is a hollow hemispherical shape, and the bottom wall of the cut-off cover (3) is evenly inlaid with a number of lubricating beads (33).

4. The multi-angle vortex ring air supply device according to claim 3, characterized in that: The inner shell (12) is concentrically provided with a hollow hemispherical inner cover (4). The bottom wall of the inner cover (4) is open. The outer extension of the inner cover (4) is provided with an outer ring plate (41) connected to the inner wall of the inner shell (12). The inner cover (4) is provided with docking holes (42) corresponding to the four vortex ring nozzles (2). A cavity is left between the inner cover (4) and the inner shell (12). The cut-off cover (3) is located in the cavity.

5. The multi-angle vortex ring air supply device according to claim 4, characterized in that: The outer ring plate (41) has an annular groove (43) that surrounds the axis of the outer ring plate (41), and the annular groove (43) is in rolling connection with the lubricating bead (32).

6. The multi-angle vortex ring air supply device according to claim 1, characterized in that: The indexing drive mechanism includes an indexing plate (5) set on a connecting column (33). Four indexing straight grooves are evenly opened on the outer periphery of the indexing plate (5), and an outer-attached inner arc groove is opened in the area between adjacent indexing straight grooves of the indexing plate (5).

7. The multi-angle vortex ring air supply device according to claim 6, characterized in that: The indexing drive mechanism further includes: a motor (7) disposed on the top wall of the housing, and a dial (6) adapted to the indexing plate (5) is provided at the output end of the motor (7). The dial (6) includes a round base plate and a circular convex plate concentrically disposed on the round base plate with a diameter smaller than that of the round base plate. The circular convex plate can be concentric with any outer inner arc groove and contact in a concentric state. A lever is provided on the round base plate, and the lever can be inserted into any indexing straight groove.

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