Compact structure vortex fan

Abstract

The utility model discloses a compact structure vortex fan, its structure includes seal cover, air inlet, intercepting disc, fan, power end, power base, air outlet, fan base, link axle, telescopic fan blade, confluence layer, and seal cover is fixed with fan through screw, and air inlet is connected with air outlet through fan, and intercepting disc installs at air inlet port place, and intercepting disc includes movable vane, fixed rod, magnetism attraction ring, and magnetism attraction ring is fixed in air inlet inner wall, and fixed rod is fixed in the surface of air inlet inner ring, and movable vane can open and close activity in air inlet, and through setting movable vane that can swing with the self -adaptation of suction power at air inlet, can according to the size of fan suction power real -time adjustment air inlet's ventilation section area, realizes the dynamic matching of air intake and fan operating state, promotes fan work efficiency and operating stability, when the equipment completely stops operation, movable vane can reset and close air inlet, effectively blocks the gas reflux in the fan inside.

Description

Technical Field

[0001] This utility model belongs to the field of fans, and more specifically, it relates to compact vortex fans. Background Technology

[0002] A vortex blower is a high-pressure airflow device with both blowing and suction functions. It relies on the high-speed rotation of its internal impeller to create negative pressure and high-pressure airflow, enabling functions such as gas suction, conveying, circulation, and pneumatic conveying. It is commonly used in industrial negative pressure recovery, ventilation, and waste gas conveying. It features a compact structure, stable air pressure, and clean air source, making it a core device for gas transmission and negative pressure operations.

[0003] After a vortex blower completes gas delivery and stops, residual gas can easily remain in the internal flow channel. Under the pressure difference in the pipeline, gas can easily flow back to the delivery end. Existing structures mostly rely on external one-way valves or passive sealing structures, which cannot close the air intake channel synchronously with the shutdown action. This not only easily causes gas backflow and affects the integrity of delivery, but may also lead to the backflow of external impurities. Utility Model Content

[0004] To solve the aforementioned technical problems, the purpose and effectiveness of this compact vortex blower are achieved through the following specific technical means:

[0005] Its structure includes a sealing cover, an air inlet, an intercepting plate, a fan, a power end, a power base, an air outlet, a fan base, a connecting shaft, telescopic fan blades, and a manifold. The sealing cover is fixed to the fan with screws. The air inlet is connected to the air outlet through the fan. The intercepting plate is installed at the air inlet port. The power end drives the telescopic fan blades through the connecting shaft. The power base is fixed to the bottom of the power end. The fan base is fixed to the bottom of the fan. The manifold and the fan are an integrated structure.

[0006] The interception disc includes a movable blade, a fixed rod, and a magnetic ring. The magnetic ring is fixed to the inner wall of the air inlet, the fixed rod is fixed to the inner surface of the air inlet, and the movable blade is connected to the fixed rod. The movable blade can open and close within the air inlet.

[0007] As a further improvement of this utility model, the movable leaf includes a magnetic strip, a soft body, a support body, and a fixing block. The magnetic strip wraps around the side edge of the soft body, the support body is attached to the bottom surface of the soft body, the support body is connected to the fixing block, and the support body can provide stable support for the soft body.

[0008] As a further improvement of this utility model, the fixing rod includes a support rod, a fixing ball, a slot, and a magnet block. The support rod and the fixing ball are an integrated structure. The slot is embedded inside the fixing ball. The magnet block is attached to the surface of the support rod. The support rod can stabilize the force point of the movable leaf.

[0009] As a further improvement of this utility model, the sealing cover is detachably connected to the fan for internal cleaning, the protrusion on the connecting shaft can be securely connected to the power end, and the telescopic fan blades can be directly maintained after the sealing cover is removed.

[0010] As a further improvement of this utility model, the movable blade has two semi-circular symmetrically distributed blades, the magnetic ring has a magnetic attraction effect and is in the form of a ring structure, and the symmetrical opening and closing of the movable blades can make the air intake more uniform.

[0011] As a further improvement of this utility model, the support body has fourteen evenly distributed supports, and when the soft body loses external force, it supports and returns to its position. The soft body is made of rubber, and the magnetic strip and magnetic ring can be used to magnetically attract each other. The support body can make the soft body return to its position more stably.

[0012] As a further improvement of this utility model, the card slot auxiliary fixing block is securely installed, the magnet block and the magnetic strip can be magnetically attracted together, and the magnet block can enhance the stability when the movable leaf is closed.

[0013] As a further improvement of this utility model, the telescopic fan blade includes a fan blade, a rubber strip, a main shaft, a rubber ring, and a movable groove. The rubber strip is connected between the fan blade and the rubber ring. The movable groove and the main shaft are an integrated structure. The rubber strip is located inside the movable groove. The rubber ring is located between the main shaft and the connecting shaft. The fan blade can telescopically move within the movable groove.

[0014] As a further improvement of this utility model, the manifold includes a manifold, a protective layer, and a collection channel. The manifold and the protective layer are an integrated structure. The collection channel is located at the bottom of the protective layer. The manifold can guide and collect oil sludge.

[0015] As a further improvement of this utility model, the fan blade moves along the space of the movable groove, and the rubber strip pulls the fan blade back into place when it is not under force. When the fan blade is not under force, it is in a smooth state with the surface of the main shaft. The pull-back of the rubber strip can ensure that the structure shrinks and becomes compact after the machine stops.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By setting movable blades at the air inlet that can swing adaptively with the suction power, the ventilation cross-sectional area of ​​the air inlet can be adjusted in real time according to the magnitude of the fan's suction force, so as to achieve dynamic matching between the air intake volume and the fan's operating status, thereby improving the fan's working efficiency and operational stability. When the equipment stops operating completely, the movable blades can reset and close the air inlet, effectively blocking the backflow of gas inside the fan.

[0018] 2. When the fan is running, the fan blades extend normally and work stably under the action of centrifugal force. At the same time, the oil stains generated inside the equipment can be thrown away by centrifugal force and concentrated in the collection tank for centralized guidance and collection, reducing the pollution and erosion of the internal structure of the fan by oil stains. When the equipment stops working, the fan blades can retract and reset in time. During the retraction process, the main shaft forms a scraping action on the surface of the fan blades, effectively removing the attached oil stains. Combined with the smooth structure formed by the fan blades and the main shaft after they are returned to their original position, it further promotes the sliding and collection of residual oil stains, realizing the self-cleaning of the fan, reducing the frequency of maintenance and improving the service life of the equipment. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of the compact vortex blower of this utility model.

[0020] Figure 2 This is a schematic diagram of the structure of the vortex blower of this utility model.

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the vortex blower of this utility model.

[0022] Figure 4 This is a schematic diagram of the interceptor disk of this utility model.

[0023] Figure 5 This is a schematic diagram of the structure of the movable blade of this utility model.

[0024] Figure 6 This is a schematic diagram of the structure of the fixing rod of this utility model.

[0025] Figure 7 This is a schematic diagram of the structure of the telescopic fan blade of this utility model.

[0026] Figure 8 This is a schematic diagram of the cross-sectional structure of the manifold of this utility model.

[0027] In the diagram: Sealing cap-1, Air inlet-2, Interception plate-3, Fan-4, Power end-5, Power base-6, Air outlet-7, Fan base-8, Connecting shaft-9, Telescopic fan blade-10, Merging layer-11, Movable blade-31, Fixing rod-32, Magnetic ring-33, Magnetic strip-71, Soft body-72, Support body-73, Fixing block-74, Support rod-21, Fixing ball-22, Slot-23, Magnet block-24, Fan blade-51, Rubber strip-52, Main shaft-53, Rubber ring-54, Movable groove-55, Merging groove-61, Protective layer-62, Collection groove-63. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings:

[0029] Example 1: As shown in the attached document Figure 1 To be continued Figure 6 As shown:

[0030] This utility model provides a compact vortex blower, the structure of which includes a sealing cover 1, an air inlet 2, an intercepting plate 3, a blower 4, a power end 5, a power base 6, an air outlet 7, a blower base 8, a connecting shaft 9, a telescopic fan blade 10, and a confluence layer 11. The sealing cover 1 is fixed to the blower 4 by screws. The air inlet 2 is connected to the air outlet 7 through the blower 4. The intercepting plate 3 is installed at the port of the air inlet 2. The power end 5 drives the telescopic fan blade 10 through the connecting shaft 9. The power base 6 is fixed to the bottom of the power end 5. The blower base 8 is fixed to the bottom of the blower 4. The confluence layer 11 and the blower 4 are an integrated structure.

[0031] The intercepting disc 3 includes a movable blade 31, a fixed rod 32, and a magnetic ring 33. The magnetic ring 33 is fixed to the inner wall of the air inlet 2, the fixed rod 32 is fixed to the inner surface of the air inlet 2, the movable blade 31 is connected to the fixed rod 32, the movable blade 31 can open and close within the air inlet 2, and the magnetic ring 33 can attract and position the movable blade 31.

[0032] The movable leaf 31 includes a magnetic strip 71, a soft body 72, a support body 73, and a fixing block 74. The magnetic strip 71 wraps around the side edge of the soft body 72, the support body 73 is attached to the bottom surface of the soft body 72, the support body 73 is connected to the fixing block 74, the support body 73 can provide stable support for the soft body 72, and the fixing block 74 fixes the mounting point of the movable leaf 31.

[0033] The fixing rod 32 includes a support rod 21, a fixing ball 22, a slot 23, and a magnet block 24. The support rod 21 and the fixing ball 22 are an integrated structure. The slot 23 is embedded inside the fixing ball 22. The magnet block 24 is attached to the surface of the support rod 21. The support rod 21 can stabilize the force point of the movable blade 31. The magnet block 24 can form a magnetic attraction with the movable blade 31.

[0034] The sealing cover 1 is detachably connected to the fan 4 for internal cleaning. The protrusion on the connecting shaft 9 can be securely connected to the power end 5. After the sealing cover 1 is removed, the telescopic fan blade 10 can be directly maintained. The protrusion on the connecting shaft 9 can prevent slippage during transmission.

[0035] The movable blade 31 has two semi-circular symmetrically distributed blades, and the magnetic ring 33 has a magnetic attraction effect and is in the form of a ring structure. The symmetrical opening and closing of the movable blade 31 can make the air intake more uniform, and the ring structure of the magnetic ring 33 can fully fit the movable blade 31.

[0036] The support body 73 has fourteen evenly distributed supports, which support the soft body 72 back into position when the soft body 72 loses external force. The soft body 72 is made of rubber. The magnetic strip 71 and the magnetic ring 33 can be magnetically attracted together. The support body 73 can make the soft body 72 return to position more smoothly. The rubber material of the soft body 72 can improve the smoothness when opening and closing.

[0037] The slot 23 is used to securely install the auxiliary fixing block 74, the magnet block 24 and the magnetic strip 71 can be magnetically attracted together, the magnet block 24 can enhance the stability of the movable leaf 31 when it is closed, and the overall structure of the fixing rod 32 can improve the stability of the movable leaf 31.

[0038] The specific usage and function of this embodiment are as follows:

[0039] In this invention, after the power end 5 of the compact vortex blower is connected to the power source and started, the power end 5 drives the telescopic fan blade 10 to rotate at high speed through the connecting shaft 9. The air inlet 2 and air outlet 7 are pre-connected to the required delivery pipelines to ensure a sealed and leak-free connection. During the high-speed rotation of the telescopic fan blade 10, the negative pressure suction generated acts on the intercepting disc 3 at the air inlet 2, causing the movable blade 31 to bend and deform under the negative pressure suction, thus breaking free from the magnetic attraction constraint of the magnet block 24 and the magnetic ring 33. At this time, the air inlet 2 is completely open, and external gas smoothly enters the blower 4. During this process, the support rod 21 of the fixed rod 32 and the fixed ball 22 cooperate to provide stable support for the swing of the movable blade 31, ensuring a smooth and stable air intake process. As the conveying process nears completion, the rotational speed of the telescopic fan blade 10 gradually decreases, and the negative pressure suction force on the movable blade 31 decreases accordingly. At this time, under the elastic support force of the support body 73, the soft body 72 of the movable blade 31 gradually returns to its original position, causing the air inlet diameter of the air inlet 2 to gradually shrink, reducing the amount of gas entering. When the telescopic fan blade 10 completely stops rotating, the support body 73 completely supports the soft body 72 back into place. The magnetic strip 71 on the side edge of the movable blade 31, the magnetic block 24 on the fixed rod 32, and the magnetic ring 33 on the inner wall of the air inlet 2 are precisely magnetically attracted and firmly fixed, effectively sealing the air inlet 2. This prevents the gas remaining inside the fan 4 from flowing back to the air inlet 2 port, ensuring the unidirectionality and integrity of the gas conveying, and also preventing external impurities from entering the fan through the air inlet 2.

[0040] Example 2: As shown in the attached document Figure 7 To be continued Figure 8 As shown:

[0041] The telescopic fan blade 10 includes a fan blade 51, a rubber strip 52, a main shaft 53, a rubber ring 54, and a movable groove 55. The rubber strip 52 is connected between the fan blade 51 and the rubber ring 54. The movable groove 55 and the main shaft 53 are an integrated structure. The rubber strip 52 is located inside the movable groove 55. The rubber ring 54 is located between the main shaft 53 and the connecting shaft 9. The fan blade 51 can telescopically move within the movable groove 55. The rubber strip 52 can provide elastic restoring force.

[0042] The manifold 11 includes a manifold 61, a protective layer 62, and a collection trough 63. The manifold 61 and the protective layer 62 are an integrated structure. The collection trough 63 is located at the bottom of the protective layer 62. The manifold 61 can guide and collect oil sludge, and the collection trough 63 can centrally treat oil sludge.

[0043] The fan blade 51 moves along the space of the movable groove 55. When the fan blade 51 is not under force, the rubber strip 52 pulls it back to its original position. When the fan blade 51 is not under force, it is in a smooth state with the surface of the main shaft 53. The pull-back of the rubber strip 52 can ensure that the structure shrinks and becomes compact after the machine stops. When the fan blade 51 is in a smooth state with the surface of the main shaft 53, it helps oil stains to slide off.

[0044] The specific usage and function of this embodiment are as follows:

[0045] In this invention, when the power end 5 drives the telescopic fan blade 10 to rotate via the connecting shaft 9, the fan blade 51 stretches the rubber strip 52 outward under centrifugal force and extends along the main shaft 53 to its maximum working position, rotating synchronously with the main shaft 53 at high speed to achieve air extraction. During the operation of the fan, oil stains generated inside the equipment will adhere to the surface of the fan blade 51 and be thrown into the confluence channel 61 of the confluence layer 11 under centrifugal force. The oil is then guided by the confluence channel 61 and collected in the collection channel 63. When the power end... 5. After the operation stops, the centrifugal force on the fan blade 51 disappears. Under the elastic pull of the rubber strip 52, it retracts and resets to the inside of the main shaft 53. During the retraction of the fan blade 51, the main shaft 53 forms a scraping effect on its surface. After the fan blade 51 is fully returned to its position, it forms a smooth structure with the surface of the main shaft 53, which further assists the residual oil stains to slide off the surface. The oil stains are finally collected in the collection tank 63 through the confluence groove 61. Subsequently, the sealing cover 1 can be removed to clean the oil stains in the collection tank 63.

[0046] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A compact vortex blower, comprising a sealing cover (1), an air inlet (2), an intercepting plate (3), a blower (4), a power end (5), a power base (6), an air outlet (7), a blower base (8), a connecting shaft (9), a telescopic fan blade (10), and a confluence layer (11). The sealing cover (1) is fixed to the blower (4) by screws. The air inlet (2) is connected to the air outlet (7) through the blower (4). The intercepting plate (3) is installed at the port of the air inlet (2). The power end (5) drives the telescopic fan blade (10) through the connecting shaft (9). The power base (6) is fixed to the bottom of the power end (5). The blower base (8) is fixed to the bottom of the blower (4). The confluence layer (11) and the blower (4) are an integrated structure. The characteristic feature is that: The interceptor disc (3) includes a movable blade (31), a fixed rod (32), and a magnetic ring (33). The magnetic ring (33) is fixed to the inner wall of the air inlet (2), and the fixed rod (32) is fixed to the inner surface of the air inlet (2). The movable blade (31) is connected to the fixed rod (32). The movable leaf (31) includes a magnetic strip (71), a soft body (72), a support body (73), and a fixing block (74). The magnetic strip (71) wraps around the side edge of the soft body (72), the support body (73) is attached to the bottom surface of the soft body (72), and the support body (73) is connected to the fixing block (74). The support (73) has fourteen evenly distributed supports, and when the soft body (72) loses external force, it supports and returns to its position. The soft body (72) is made of rubber, and the magnetic strip (71) and magnetic ring (33) can be magnetically attracted together.

2. The compact vortex blower according to claim 1, characterized in that: The fixing rod (32) includes a support rod (21), a fixing ball (22), a slot (23), and a magnet block (24). The support rod (21) and the fixing ball (22) are an integrated structure. The slot (23) is embedded inside the fixing ball (22), and the magnet block (24) is attached to the surface of the support rod (21).

3. The compact vortex blower according to claim 1, characterized in that: The sealing cover (1) is detachably connected to the fan (4) for cleaning the interior, and the protrusion on the connecting shaft (9) can be securely connected to the power end (5).

4. The compact vortex blower according to claim 1, characterized in that: The active leaf (31) has two semi-circular symmetrically distributed parts, and the magnetic ring (33) has a magnetic attraction effect and is in the form of a ring structure.

5. The compact vortex blower according to claim 2, characterized in that: The slot (23) is used to securely install the auxiliary fixing block (74), and the magnet block (24) and the magnetic strip (71) can be magnetically attracted together.

6. The compact vortex blower according to claim 1, characterized in that: The telescopic fan blade (10) includes a fan blade (51), a rubber strip (52), a main shaft (53), a rubber ring (54), and a movable groove (55). The rubber strip (52) is connected between the fan blade (51) and the rubber ring (54). The movable groove (55) and the main shaft (53) are an integrated structure. The rubber strip (52) is located inside the movable groove (55). The rubber ring (54) is located between the main shaft (53) and the connecting shaft (9).

7. The compact vortex blower according to claim 1, characterized in that: The manifold (11) is integrated with the fan (4) and located on the inner surface of the fan (4). It includes a manifold (61), a protective layer (62), and a collection groove (63). The manifold (61) and the protective layer (62) are an integrated structure, and the collection groove (63) is located at the bottom of the protective layer (62).

8. The compact vortex blower according to claim 6, characterized in that: The fan blade (51) moves along the space of the movable groove (55). When the fan blade (51) is not under force, the rubber strip (52) pulls it back to its original position. When the fan blade (51) is not under force, it is in a smooth state with the surface of the main shaft (53).

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