TW202111265A - Windshield cover structure to prevent the backflow caused by strong external wind and make the exhausting smoother, and quickly divert and discharge the exhaust gas - Google Patents

Abstract

A windshield cover structure mainly includes an outer cover and an inner frame. Among them, the outer cover is generally in the shape of a round cap or a square cap, the wall of which has fixing holes. The upper and lower edges of the wall are respectively provided with the upper and lower venting holes, the inner edge has a round protrusion; the inner frame has a wall portion and a tube body extending from the wall portion, the wall portion has a notch corresponding to the fixing hole of the outer cover, and the tube body is provided with a long hole. After placing the inner frame on the outer cover, and fixing it to the wall surface at the end of the exhaust pipe of the range hood or bathroom exhaust fan through the notches and fixing holes, so that the exhaust gas enters from the inner frame, and discharges along the round protrusion of the inner edge of the outer cover through the upper and lower venting holes, so as to prevent the backflow caused by strong external wind and make the exhausting smoother, and quickly divert and discharge the exhaust gas. Also, rainwater can drip down directly from the outer wall of the inner frame when it rains, which will prevent the water in the exhaust pipe from affecting the exhaust effect.

Description

Windshield structure

The present invention relates to a windshield structure, in particular to a windshield structure that can prevent backflow caused by strong external winds to make the exhaust smoother, and can prevent the accumulation of water in the exhaust pipe from affecting the exhaust effect.

Press; general range hoods or bathroom exhaust fans are usually attached to the top edge of the exhaust pipe to discharge the exhaust gas to the outside. In order to prevent the exhaust gas from being poured back by the external wind, it is usually installed on the end wall of the exhaust pipe A windshield is installed on the surface. The conventional windshield is shown in Figure 1. It is equipped with a fume exhaust hood 71. The fume exhaust hood 71 is a hemispherical shell. The fume exhaust hood 71 has a caliber and exhaust pipe. The caliber of 72 is similar in size, and there is a diversion mesh 73 at the joint of the two calibers. The spherical surface of the fume exhaust hood 71 has an exhaust port 74 facing the ground, and the indoor oil fume passes through the exhaust pipe 72. Passes through the guide mesh 73 and is exhausted to the outdoors through the exhaust port 74, while outdoor wind, rain and foreign objects are blocked by the exhaust hood 71. Although the windshield can prevent the vertical inflow of external rainwater, it is due to the design of the structure. Among them, the louver design of the guide mesh 73 makes the cross-sectional area smaller, resulting in unsmooth exhaust, and generating back pressure, which affects the indoor gas or oil fume emission effect. Furthermore, this kind of structural design makes it easy for strong outdoor wind to directly pour into the exhaust pipe or even into the room, and when it rains, rainwater will seep into the exhaust pipe along with the strong wind, causing water accumulation in the exhaust pipe and affecting the exhaust. The air effect is more likely to cause the smoke and greasy phenomenon in the house due to poor exhaust. In view of this, after continuous research and experimentation, the applicant came up with a design of a windshield structure, which can prevent backflow caused by strong external winds, make the exhaust smoother, and prevent the accumulation of water in the exhaust pipe from affecting the exhaust effect.

The main purpose of the present invention is to provide a windshield structure for fixing to the end of the exhaust pipe of a range hood. With a barrier-free fully open design, it prevents backflow caused by strong external winds and makes the exhaust smoother, and It can prevent the accumulation of water in the exhaust pipe from affecting the exhaust effect.

The aforementioned windshield structure includes an outer cover and an inner frame. Among them, the outer cover system is generally in the shape of a round cap or a square cap. The wall is provided with fixing holes. The upper and lower edges of the wall are respectively provided with upper and lower vents, and the inner edge is provided with a round Protrusions; the inner frame is provided with a wall portion, and a tube body extending from the wall portion, the wall portion is provided with a notch corresponding to the fixing hole of the outer cover, and the tube body is provided with a long hole. After placing the inner frame on the outer cover, fix it to the wall of the exhaust pipe of the range hood or bathroom exhaust fan through the notches and fixing holes, so that the exhaust gas enters from the inner frame and follows the round protrusion of the inner edge of the outer cover The upper and lower exhaust holes are discharged to prevent backflow caused by strong external winds, which helps the exhaust gas to be quickly diverted and discharged, and the barrier-free fully open design makes the exhaust smoother, and when it rains, it is rainy. It can drop down from the outer wall of the inner frame, thereby avoiding the accumulation of water in the exhaust pipe from affecting the exhaust effect.

In the aforementioned windshield structure, the exhaust holes provided on the upper edge of the wall surface of the outer cover body are rectangular holes arranged at intervals.

In the aforementioned windshield structure, the vent hole provided under the lower edge of the outer cover body is a first lower vent hole of a large rectangular hole, and a second lower vent hole composed of a plurality of small rectangular holes .

In the aforementioned windshield structure, the outer cover system is provided with a positioning column on the wall portion, and the inner frame is provided with a first notch corresponding to the outer cover body positioning column on the wall portion, so that the inner frame is placed on the outer cover during assembly After the body, the positioning is formed by the first notch frame on the positioning column.

The aforementioned windshield structure can be further provided with at least two fixed posts on the inner frame, a torsion spring part is penetrated through the fixed posts, and a top holding section and a second holding section are extended from the torsion spring section. Holder. When assembling, first open the second holding section and then penetrate into the opening of the wall. The torsion force generated by the torsion spring part makes the second holding section hold on the opening of the opening. On the inner edge, the entire windshield is positioned to facilitate fixing the windshield to the opening of the wall.

Please refer to Fig. 1 and Fig. 2 at the same time, which are the three-dimensional exploded view and cross-sectional view of the present invention. As shown in the figure, the present invention includes an outer cover 1 and an inner frame 2. Among them, the outer cover 1 is generally in the shape of a round cap or a square cap. Its wall 11 is provided with a positioning column 111 and a symmetrical fixing hole 112. The upper and lower edges of the wall are respectively provided with upper exhaust holes 12 As well as the first lower exhaust hole 13 and the second lower exhaust hole 14, a round protrusion 15 is provided on the inner edge. In this embodiment, the vent holes 12 on the upper edge of the wall surface of the outer cover 1 are rectangular holes arranged at intervals; the first lower vent holes 13 provided on the lower edge of the wall surface of the outer cover 1 are It is a large rectangular hole, and the second lower vent 14 is formed by a plurality of small rectangular holes; the round protrusion 15 is protruded from the inner edge of the outer cover 1 in an appropriate arc.

The inner frame 2 is provided with a wall portion 21 of appropriate width, and a tube body 22 extending from the wall portion 21 to an appropriate length. The wall portion 21 is provided with a first notch 211 corresponding to the positioning post 111 of the outer cover body 1, and Corresponding to the second notch 212 of the fixing hole 112, and a long hole 221 is provided on the lower edge of the tube body 22. Among them, the opening of the tube body 22 is provided with a mesh body 23 made of stainless steel.

The windshield structure is formed by the combination of the aforementioned components. After placing the inner frame 2 sets on the outer cover body 1, the first notch 211 is framed on the positioning post 111 to form a positioning. First, the outer cover body 1 and the inner frame 2 are fixed to each other with an adhesive (such as silicone). The second notch 212 and the fixing hole 112 are then fixed on the wall of the exhaust pipe end of the range hood or bathroom exhaust fan, and connected with the exhaust pipe of the range hood, so that the exhaust gas generated by the range hood is discharged from the inner frame. 2 After entering, the upward exhaust hole 12, the first lower exhaust hole 13 and the second lower exhaust hole 14 are discharged along the round protrusion 15 of the inner edge of the outer cover body 1, thereby helping the exhaust gas to be quickly diverted and discharged. The contained oil or water drips down from the long hole 221 of the inner frame 2 to prevent it from accumulating in the windshield. The barrier-free fully open design prevents backflow caused by strong external winds to make the exhaust smoother, which helps the exhaust gas to be quickly diverted and discharged, and prevents waste oil from accumulating in the windshield and pipelines, and when it rains , The rainwater can drip down from the outer wall of the inner frame 2, thereby avoiding the accumulation of water in the exhaust pipe and affecting the exhaust effect. The net body 23 at the opening of the tube body 22 of the inner frame 2 can prevent birds and mosquitoes from flying in.

Please refer to Figure 3, which is the assembled state diagram of the present invention. Please cooperate with Figure 1. As shown in the figure, when the present invention is assembled, the inner frame 2 is sleeved and fixed to the outer cover 1, and then the first notch 211 is framed on the positioning post 111 to form a positioning. The second notch 212 and the fixing hole 112 are fixed to the opening 41 of the wall 4 at the end of the exhaust pipe 3 of the range hood for the exhaust gas of the exhaust pipe 3 to discharge.

Please refer to FIG. 4 and FIG. 5 at the same time, which are diagrams of the smoke exhaust action state of the present invention. Please cooperate with Figure 1. As shown in the figure, when the exhaust gas of the range hood of the present invention is discharged along the exhaust pipe 3, it will first pass through the inner frame 2 of the windshield, and then enter the outer cover 1. The inner edge of 1 is provided with a round protrusion 15 so that after the exhaust gas touches the round protrusion 15, it diffuses outward in the circumferential direction from the arc surface of the round protrusion 15 and guides the exhaust gas onto the outer cover 1 respectively. The exhaust hole 12, the first lower exhaust hole 13 and the second lower exhaust hole 14 are discharged outward, which helps the exhaust gas to be quickly diverted and discharged. The oil or water contained in the exhaust gas is discharged from the long hole 221 of the inner frame 2. Drop down to prevent accumulation in the windshield. In this way, through the barrier-free fully open design, the exhaust will be more smooth, and because the round protrusion 15 can prevent the oil in the exhaust gas from accumulating in the windshield and pipeline, so that the windshield can be kept well. The exhaust effect. The net body 23 at the opening of the tube body 22 of the inner frame 2 can prevent birds and mosquitoes from flying in.

Please refer to Fig. 6, which is a state diagram of the water accumulation prevention action of the present invention. Please cooperate with Figure 1. As shown in the figure, since the windshield of the present invention is assembled outdoors, when it rains, rainwater will be sprinkled on the windshield from top to bottom. In this structure, the rainwater will flow from the outer cover. After the upper vent hole 12 falls, it discharges downward along the first lower vent hole 13 and the second lower vent hole 14. If rainwater falls on the inner frame 2, it will drop down from the outer wall and then drain down along the first lower vent 13 and the second lower vent 14 to prevent water from accumulating in the inner frame 2. This prevents water from accumulating in the exhaust pipe 3, which may affect the exhaust effect.

Please refer to FIG. 7 and FIG. 8 at the same time, which are diagrams of another assembly embodiment of the present invention. As shown in the figure, in order to make the assembly more convenient and faster, the present invention can be provided with at least two fixing posts 5 on the inner frame 2, and holding members 6 are passed through the fixing posts 5, wherein the holding members The series 6 includes a continuous coiled torsion spring portion 61, a first holding portion 62 extending from the center of the torsion spring portion 61, and a second holding portion 63 extending from both ends of the torsion spring portion 61. When assembling, the second holding section 63 is opened first and then penetrated into the opening 41 of the wall 4, and the torsion force generated by the torsion spring portion 61 makes the second holding section 63 stand up respectively. Hold the inner edge of the opening 41 and position the entire windshield to facilitate fixing the windshield to the opening 41 of the wall 4.

The foregoing embodiments are merely illustrative of the preferred embodiments of the present invention, rather than limiting the scope of the present invention. Any minor modifications and changes will still not lose the spirit of the present invention, nor deviate from the spirit of the present invention.

To sum up, the present invention uses an outer cover provided with exhaust holes and round protrusions, and is fitted on the inner frame of the outer cover provided with long holes to form a windshield structure for being fixed on the range hood for exhaust The end of the pipe prevents backflow caused by strong external winds to make the exhaust smoother, and can prevent the accumulation of water in the exhaust pipe from affecting the exhaust effect. For a practical design, it is an invention with all novelty. I file a patent application in accordance with the law. I pray that the Bureau will review it and grant the patent as soon as possible.

1: Outer cover 11: Gakibe １１１: Positioning column 112: Fixing hole 12: Upper vent 13: The first lower vent 14: The second lower vent 15: Round protrusion 2: Inner frame 21: Gakibe 211: The first gap 212: The second gap 22: Tube body 221: Long hole 23: Net body 3: Exhaust pipe 4: Wall 41: Opening 5: Fixed column 6: Top holder 61: Torsion spring part 62: The first support section 63: The second support section 71: Exhaust hood 72: Smoke exhaust pipe 73: Diversion mesh 74: Smoke outlet

Figure 1 is an exploded perspective view of the present invention. Figure 2 is a cross-sectional view of the present invention. Figure 3 is a diagram of the assembled state of the present invention. Figures 4 and 5 are diagrams of the smoke exhaust operation state of the present invention. Figure 6 is a diagram showing the operation state of the present invention for preventing water accumulation. Figures 7 and 8 are diagrams of another assembly embodiment of the present invention. Figure 9 is a structural diagram of the conventional windshield.

1: Outer cover

11: Gakibe

111: Positioning column

112: fixed hole

12: Upper vent

13: The first lower vent

14: The second lower vent

15: Round protrusion

2: inner frame

21: Gakibe

211: The first gap

212: The second gap

22: Tube body

221: Long Hole

23: Net body

Claims (6)

A windshield structure, including: An outer cover is roughly in the shape of a round cap or a square cap. The wall is provided with symmetrical fixing holes. The upper and lower edges of the wall are respectively provided with an upper exhaust hole, a first lower exhaust hole, and a first lower exhaust hole. Two lower vent holes, with a round protrusion on the inner edge; An inner frame is provided with a wall portion and a pipe body extending from the wall portion, a notch corresponding to the fixing hole of the outer cover is provided on the wall portion, and a long hole is provided on the lower edge of the pipe body; After placing the inner frame on the outer cover, fix it to the wall of the exhaust pipe of the range hood or bathroom exhaust fan through the notches and fixing holes, so that the exhaust gas enters from the inner frame and follows the round protrusion of the inner edge of the outer cover The upper exhaust hole, the first lower exhaust hole, and the second lower exhaust hole discharge to prevent backflow caused by strong external wind, which makes the exhaust smoother, which helps the exhaust gas to be quickly diverted and discharged, and prevents waste oil from accumulating in the windbreak When it rains, the rainwater can drip down from the outer wall of the inner frame, which can prevent the accumulation of water in the exhaust pipe from affecting the exhaust effect. For example, the windshield structure described in item 1 of the scope of patent application, wherein the outer cover system is provided with a positioning column on the wall portion, and the inner frame is provided with a notch corresponding to the positioning column of the outer cover body on the wall portion, so that the After the inner frame is sleeved on the outer cover body, positioning is formed by the notch frame on the positioning column. In the windshield structure described in item 1 of the scope of the patent application, the exhaust holes provided on the upper edge of the wall surface of the outer cover body are rectangular holes arranged at intervals. The windshield structure described in item 1 of the scope of patent application, wherein the first lower vent hole provided on the lower edge of the wall surface of the outer cover body is a large rectangular hole. The windshield structure described in item 1 of the scope of patent application, wherein the second lower vent hole provided on the lower edge of the wall surface of the outer cover body is constituted by a plurality of small rectangular holes. The windshield structure described in item 1 of the scope of patent application, wherein the opening of the tube body of the inner frame is provided with a net body to prevent flying birds and mosquitoes from flying in.

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