TWM566233U - Improvement of ventilation ball structure - Google Patents

Abstract

The utility model relates to an improved structure of a ventilation ball, which comprises a spherical hood formed by a plurality of curved blades arranged at equal intervals around a central axis, and a side vent between adjacent two curved blades; the spherical hood The bottom of the spherical hood has a top air outlet, the top of the spherical hood is provided with a mask, and the shielding area of the mask is larger than the area of the top air outlet. The cover is spaced from the top of the spherical hood by a distance that allows the top vent to communicate with the exterior. Air enters the spherical hood from the lower air inlet, part of the airflow is discharged from the top air outlet, part of the airflow is discharged from the side air outlet, and the airflow in the spherical air hood is smoothly flowing. To reduce the phenomenon of ventilation blockage caused by turbulence or turbulence.

Description

Ventilation ball structure improvement

This creation is an improved ventilation ball structure that can enhance the exhaust effect.

Ventilation balls on the roof, as described in M497684, a plurality of curved curved blades are arranged at equal intervals around an axis to form a spherical hood which is mounted on the roof and is rotated by the wind to be rotated inside. The eddy current effect is generated, and the air in the environment below is slid upward, and is discharged outward from the air outlet between the blades of the spherical hood to form a natural ventilation effect.

In order to prevent rainwater or foreign objects in the outdoor environment from falling into the room from the top opening of the ventilation ball, the top opening of the ventilation ball is closed by the top cover. The disadvantage of its derivative is that it reduces the exhaust effect. Because the airflow inside the spherical hood can only be discharged from the air outlet between the blades of the spherical hood, when the spherical hood is rotated by the wind, the outside has a large swirling airflow from the air outlet of the spherical hood. If the outwardly discharged airflow and the swirling airflow are tangential, they can be smoothly taken out, and if they are normal, an exhaust damper is formed. In order to solve this problem, a fan is installed under the spherical hood in an attempt to improve the airflow of the spherical hood by forced air extraction and speed increase, but the airflow driven by the fan and the vortex flow when the ventilating ball rotates are in speed, direction or When there is any inconsistency in the angle, it will cause confusion of the exhaust airflow.

What this creative artist wants to solve is that the traditional ventilation ball is closed by the top opening due to the top opening. The problem of unsatisfactory exhaustion.

The utility model relates to an improved structure of a ventilation ball, which comprises a spherical hood formed by a plurality of curved blades arranged at equal intervals around a central axis, and a side vent between adjacent two curved blades; the spherical hood The bottom of the spherical hood has a top air outlet, the top of the spherical hood is provided with a mask, and the shielding area of the mask is larger than the area of the top air outlet. The cover is spaced from the top of the spherical hood by a distance that allows the top vent to communicate with the exterior.

Preferably, the plurality of struts are connected between the top end of the spherical hood and the mask such that the mask has the above-mentioned distance from the top of the spherical hood.

Preferably, the mask is in the form of an unfolded umbrella.

Preferably, the spherical hood is freely rotatable and is connected to the upper opening of a air cylinder by the lower air inlet; the air cylinder has an electric fan.

Preferably, the upper and lower ends of the plurality of curved blades are respectively fixed to an upper fixing ring and a lower fixing ring to constitute the spherical hood and the lower air inlet and the top air outlet; the upper fixing ring and the lower fixing ring A first bracket and a second bracket are respectively fixed in the inner portion; a center of the first bracket is fixedly connected to a top end of a central shaft, and a center of the second bracket provides a pivoting portion for the central shaft a pivotable pivoting portion; a third bracket is disposed in the upper tubular opening of the air cylinder, the bottom end of the central shaft is pivoted to a limit portion of the center of the third bracket, and the central shaft and the limit The part is a pivotal connection that is free to rotate and axially limited.

Preferably, the central shaft is threaded through the rod section below the limiting portion and is screwed with at least one nut to thereby form the axial limit.

Preferably, the bottom end of the air cylinder is sleeved with a hurricane opening of a fixing plate, and the ventilating opening is provided A bracket on which the electric fan is disposed.

The effect of this creation:

The top air outlet of the spherical hood is in communication with the outside. When the spherical hood rotates, a vortex effect is generated inside the air hood to inject air into the spherical hood, part of the airflow is discharged from the top exhaust vent, and part of the airflow is discharged outward from the side vent; although the spherical hood rotates At the time, the external swirling airflow (as described in the prior art) still exists, but the airflow in the spherical hood of the present creation has no blockage or disturbance, and the airflow in and out of the spherical hood of the present creation is smooth. The flow is smooth, so the ventilation ball of this creation has a very good exhaust effect.

The shielding area of the mask is larger than the area of the top exhaust vent, so that rainwater does not fall into the spherical hood through the top vent.

The mask is in the form of an unfolded umbrella with the effect of reducing the rotational wind resistance, and the rain can slide down and be removed along the mask.

10‧‧‧Spherical hood

11‧‧‧ curved blades

111‧‧‧Upper ring

112‧‧‧ lower retaining ring

12‧‧‧ side exhaust

13‧‧‧ top exhaust

14‧‧‧ Under the vent

15‧‧‧ mask

16‧‧‧Supporting parts

20‧‧‧ bracket

30‧‧‧ electric fan

34‧‧‧Center shaft

341‧‧‧ pole

342‧‧ ‧ reduction section

343‧‧ thread

344‧‧‧ nuts

40‧‧‧Air tube

41‧‧‧Upper mouth

411‧‧‧ gap

51‧‧‧First bracket

511‧‧‧ Fixed Department

52‧‧‧second bracket

521‧‧‧ wearing a pivot

53‧‧‧ Third bracket

531‧‧‧Limited

60‧‧‧ fixed plate

61‧‧‧ Hurricane

The first picture is a top perspective view of the creation of the ventilation ball.

The second figure is a bottom perspective view of the creation of the ventilation ball.

Figure 3 is an exploded perspective view of the creation of the ventilation ball.

Figure 4 is the second exploded view of the creative ventilation ball.

Figure 5 is a combined sectional view of the creation of the ventilation ball.

Figure 6 is a schematic cross-sectional view of the supporting member of the creating ventilation ball.

Figure 7 is a schematic cross-sectional view of the joint between the spherical hood and the air cylinder.

For the convenience of the description of the central idea described in the column of the novel content, it is expressed by a specific embodiment. The elements in the examples are drawn in scale and size to facilitate description, rather than actual dimensions, and are not intended to limit the present invention.

As shown in Figures 1 and 2, the present ventilating ball includes a spherical hood 10 formed by arranging and arranging a plurality of curved blades 11 at equal intervals around the central axis, and the adjacent two curved blades 11 are arranged by the spacing. The air vent 12 is formed on the side of the air vent 12, and the top of the spherical hood 10 has a top vent 13 . The top of the hood 10 is provided with a mask 15 . The shielding area of the mask 15 is larger than the area of the top vent 13 . The mask 15 is spaced apart from the top of the spherical hood 10 by a distance such that the mask 15 is located above the top vent 13 of the spherical hood 10, and the mask 15 covers but does not close the top vent 13 The top exhaust vent 13 is in communication with the outside. The bottom of the spherical hood 10 is connected to a wind cylinder 40. The bottom end of the air cylinder 40 is sleeved with a fixing plate 60. The fixing plate 60 is fixed to a building roof air outlet (not shown). A ventilating port 61 is connected to the exhaust vent of the building. A bracket 20 is disposed in the hurricane 61, and the bracket 20 is provided with an electric fan 30.

As shown in Figures 3, 5, and 7, the upper and lower ends of the plurality of curved blades 11 are respectively fixed to an upper fixing ring 111 and a lower fixing ring 112 to constitute the spherical hood 10 and its top exhaust port 13 and its lower air inlet. 14. A first bracket 51, a second bracket 52, and a third bracket 53 are respectively fixed to the inner portions of the upper fixing ring 111, the lower fixing ring 112 and the upper tubular opening 41. A fixing portion 511 is provided at the center of the first bracket 51, and is fixedly connected to the rod top 341 of a center shaft 34 by a plurality of fixing members. The center of the second bracket 52 is provided with a penetrating portion 521 through which the upper portion of the reduced diameter section 342 of the central shaft 34 passes. The center of the third bracket 53 is provided with a limiting portion 531. The lower portion of the reduced diameter portion 342 of the central shaft 34 is rotatably passed through the limiting portion 531. The reduced diameter portion 342 passes through the limiting portion. The rod segments below 531 are provided with threads 343 for screwing a plurality of nuts 344, and the central shaft 34 is positioned such that there is no axial disengagement. Accordingly, the central shaft 34 and the limiting portion 531 are in a pivotal relationship of freely and axially constrained, and the lower fixing ring 112 surrounds the upper tubular opening 41 of the air cylinder 40, and the lower fixing ring 112 and There is a gap 411 between the upper nozzles 41 for preventing friction between the two, and the spherical hood 10 is freely rotatable to the upper nozzle 41 of the air cylinder 40 by the lower air inlet 14; the spherical hood 10 can be The air cylinder 40 is free to rotate.

As shown in Figures 4, 5, and 6, a plurality of struts 16 are coupled between the top end of the spherical hood 10 and the mask 15 such that the mask 15 is spaced from the top of the spherical hood 10 by the aforementioned distance.

As shown in FIG. 5, the electric fan 30 is activated, and the airflow induced by the air blows the spherical hood 10 to rotate, and drives the mask 15, the first bracket 51, the second bracket 52, and the central shaft 34 to rotate, based on The central shaft 34 and the limiting portion 531 are in a pivotal relationship with the free direction and the axial limit. Therefore, the spherical hood 10 can be stably rotated on the air cylinder 10 without axial detachment. When the spherical hood 10 rotates, a vortex effect is generated inside the hood, and the hot air in the sucking structure enters the spherical hood 10 through the hurricane 61 and the air cylinder 40, and part of the airflow is discharged from the top vent 13 to the outside. The air flow is discharged outward from the side exhaust vents 12. Although the swirling airflow formed on the outer surface of the spherical hood 10 when rotated (as described in the prior art) still exists, the airflow in the spherical hood 10 of the present invention is not blocked or disturbed, and the airflow can be The ventilating ball of the present invention has a very good exhausting effect. The mask 15 has an unfolded umbrella shape and has the effect of reducing the rotating wind resistance. The rainwater can also slide down along the mask 15 and is excluded along the curved blade 11. The shielding area of the mask 15 is larger than the The area of the top exhaust vent 13 is such that rainwater does not drip from the top vent 13 into the spherical hood 10.

Claims (7)

The utility model relates to an improved structure of a ventilation ball, which comprises a spherical hood formed by a plurality of curved blades arranged at equal intervals around a central axis, and a side vent between adjacent two curved blades; the spherical hood The bottom of the spherical hood has a top air outlet, the top of the spherical hood is provided with a mask, and the shielding area of the mask is larger than the area of the top air outlet. The cover is spaced from the top of the spherical hood by a distance that allows the top vent to communicate with the exterior. The ventilating ball structure of claim 1 is improved, wherein a plurality of struts are coupled between the top end of the spherical hood and the mask such that the mask has the above-mentioned distance from the top of the spherical hood. The ventilation ball structure is improved as claimed in claim 1, wherein the mask has an unfolded umbrella shape. The ventilating ball structure is improved according to claim 1, wherein the spherical hood is freely rotatable and is connected to the upper tubular opening of a air cylinder by the lower air inlet; the air cylinder has an electric fan. The ventilation ball structure is improved according to claim 4, wherein the upper and lower ends of the plurality of curved blades are respectively fixed to an upper fixing ring and a lower fixing ring to constitute the spherical hood and the lower air inlet and the top air outlet; A first bracket and a second bracket are respectively fixed to the inner portions of the upper fixing ring and the lower fixing ring; the center of the first bracket is fixedly connected to the top end of a central shaft by a fixing portion, and the center of the second bracket is provided a pivoting portion for pivoting the central shaft; a third bracket is disposed in the upper tubular opening of the air cylinder, and a bottom end of the central shaft is pivoted to a limit portion of the center of the third bracket, And the central shaft and the limiting portion are in a pivotal relationship of the free direction and the axial limit. The structure of the ventilation ball according to claim 5 is improved, wherein the central shaft passes below the limit portion The rod segments are threaded and threaded with nuts to form the axial limit. The ventilation ball structure is improved according to claim 5, wherein the bottom end of the air cylinder is sleeved with a hurricane port of a fixed plate, and a bracket is disposed in the ventilating port, and the electric fan is disposed on the bracket.