TWI720659B - Oil drain structure of windshield - Google Patents

Abstract

An oil drain structure of a windshield mainly includes an outer cover, a first inner frame, a second inner frame and an exhaust pipe. Wherein, the upper edge and the lower edge of the outer cover wall are respectively provided with an upper vent hole and a lower vent hole, the inner edge is provided with a round protrusion; the first inner frame is provided with a wall part, and the wall An elongated pipe body is provided with a long hole in the pipe body, a through hole is provided in the wall portion, and an oil drain groove is penetrated through the through hole. After the first inner frame and the second inner frame are assembled on the outer cover, they are fixed on the wall of the end of the exhaust pipe of the range hood or bathroom exhaust fan so that the exhaust gas enters from the inner frame and follows the circle of the inner edge of the outer cover. The protrusions are discharged from the upper and lower vents to prevent backflow caused by strong external winds to make the exhaust smoother, and the waste oil contained in the exhaust gas adheres to the first inner frame, the second inner frame, and the exhaust pipe. It will drip down and lead into the oil drain groove, and then discharge along the oil drain groove from the exhaust hole under the outer cover to prevent accumulation in the windshield from affecting the exhaust effect.

Description

Oil drain structure of windshield

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

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 8. It is equipped with a fume exhaust hood 91. The fume exhaust hood 91 is a hemispherical shell. The diameter of the fume exhaust hood 91 and the exhaust pipe The caliber of 92 is similar in size, and there is a diversion mesh 93 at the junction of the two calibers. The spherical surface of the fume exhaust hood 91 has an exhaust port 94 facing the ground, and the indoor oil fume passes through the exhaust pipe 92. It passes through the guide mesh 93 and is exhausted to the outdoors through the exhaust port 94. The wind, rain and foreign objects are blocked by the exhaust hood 91. 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 diversion mesh 93 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 structural design makes the exhaust hood 91 filled with the waste oil in the exhausted gas, and it drips down for a long time, which makes the exhaust hood 91 accumulate too much waste oil (or water), which not only affects the exhaust The effect is more likely to cause the smoke and greasy phenomenon of the house due to poor exhaust, and the waste oil (or water) 95 will flow along the extension of the pipe to the wall. As a result of long-term contamination, the inner edge of the pipe will accumulate thick Oil stains affect the exhaust effect, and even return to the range hood, and the oil stains will seep out and extend to the outer wall of the building, leaving deep dirt on the wall and making cleaning difficult. It is a great disadvantage of the conventional windshield. . In view of this, after continuous research and experimentation, the applicant came up with a design of an oil storage structure for a windshield, which can prevent backflow caused by strong external winds, make the exhaust smoother, and prevent the accumulation of waste oil in the exhaust pipe from affecting the exhaust effect. .

The main purpose of the present invention is to provide a windshield oil drain structure for fixing at the end of the exhaust pipe of a range hood, which can prevent backflow caused by strong external winds and make the exhaust smoother, and can prevent waste oil from accumulating in The exhaust pipe affects the exhaust effect.

The oil drain structure of the aforementioned windshield includes an outer cover, a first inner frame, a second inner frame, and an exhaust pipe. Wherein, the upper edge and the lower edge of the outer cover wall are respectively provided with an upper vent hole and a lower vent hole, the inner edge is provided with a round protrusion; the first inner frame is provided with a wall part, and the wall An elongated pipe body is provided with a long hole in the pipe body, a through hole is provided in the wall portion, and an oil drain groove is penetrated through the through hole. After the first inner frame and the second inner frame are assembled on the outer cover, they are fixed on the wall of the end of the exhaust pipe of the range hood or bathroom exhaust fan so that the exhaust gas enters from the inner frame and follows the circle of the inner edge of the outer cover. The protrusions are discharged from the upper and lower vents to prevent backflow caused by strong external winds to make the exhaust smoother, and the waste oil or water contained in the exhaust gas adheres to the first inner frame, the second inner frame, and the exhaust The pipe will drip down and lead into the oil drain groove member, and then discharge along the oil drain groove member from the exhaust hole under the outer cover body to prevent it from accumulating in the windshield and affecting the exhaust effect.

In the aforementioned oil drain structure of the windshield, a rectangular through hole is provided under the wall of the first inner frame for embedding an oil drain groove member, and the oil drain groove member at least includes a guide groove, And the positioning rod connected with the guide groove makes the waste oil drip into the guide groove of the oil drain groove member, and then is discharged from the first lower vent hole and the second lower vent hole of the outer cover to prevent waste oil or water Accumulated in the windshield affects the exhaust effect.

The oil drain structure of the aforementioned windshield, wherein the oil drain groove member includes a seat body that is generally arc-shaped, and the seat body is provided with a guide groove, and two symmetrical positioning rods extending from one end of the seat body to an appropriate length, When assembling, the positioning rod of the oil drain groove member is inserted through the through hole of the first inner frame, so that the oil drain groove member is located below the first inner frame.

Please refer to Fig. 1 and Fig. 2 at the same time, and in conjunction with Fig. 3, are the three-dimensional exploded view, the three-dimensional view of the oil drain groove and the cross-sectional view of the present invention. As shown in the figure, the present invention includes an outer cover 1 and a first inner frame 2, a second inner frame 3, an exhaust pipe 4, an oil drain groove member 5, and a plurality of positioning members 6. Among them, the outer cover 1 is generally in the shape of a round cap or a square cap, and the upper and lower edges of the wall surface are respectively provided with an upper vent hole 12, a first lower vent hole 13, and a second lower vent hole 14. , The inner edge is provided with a round protrusion 15. 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 first 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. A rectangular through hole 2111 is provided under the wall portion 21, and the tube A long hole 221 is provided on the lower edge of the body 22.

The second inner frame 3 is provided with a wall portion 31 of appropriate width, and a pipe body 32 extending from the wall portion 31 to an appropriate length. A plurality of embedding grooves 321 are provided on the surface of the pipe body 32.

The exhaust pipe 4 is sleeved on the second inner frame 3.

The oil drain groove member 5 includes a seat body 51 that is generally arc-shaped. The seat body 51 is provided with a guide groove 511, and two symmetrical positioning rods 52 extending from one end of the seat body 51 to an appropriate length.

The positioning members 6 are sheet-shaped, one end is provided with a fixing portion 61, the fixing portion 61 is provided with a fixing hole 611, the other end is provided with a hook portion 62, and a U-shaped notch is provided at an appropriate position on the surface. An elastic suspension piece 63 is formed, and the positioning member 6 can also be an elastic piece or a spring clip.

With the aforementioned components, each positioning member 6 is placed in the groove 321 of the second inner frame 3 during assembly, so that the hook portion 62 is hooked on the opening edge of the second inner frame 3 tube body 32, and the second inner frame 3 An inner frame 2 and a second inner frame 3 are sleeved with each other, and then the positioning rod 52 of the oil drain groove member 5 is inserted through the through hole 211 of the first inner frame 2, and the positioning is formed by the expansion of the two positioning rods 52. , After assembly, the first inner frame 2 and the second inner frame 3 are sleeved behind the outer cover body 1, and the exhaust pipe 4 is sleeved on the second inner frame 3 so that the suspension pieces 63 of the positioning parts 6 are held on The inner edge of the exhaust pipe 4 constitutes a positioning, and the first inner frame 2 and the second inner frame 3 and the outer cover 1 are fixed by the fixing hole 611 of the fixing part 61 of the positioning member 6, and fixed to the range hood or bathroom at the same time The wall at the end of the exhaust pipe of the exhaust fan is connected with the exhaust pipe of the range hood, so that the exhaust gas generated by the range hood enters from the first inner frame 2 and upwards along the round protrusion 15 of the inner edge of the outer cover 1 The exhaust hole 12, the first lower exhaust hole 13 and the second lower exhaust hole 14 discharge. The barrier-free fully open design prevents backflow caused by strong external winds and makes the exhaust smoother. Contained waste oil (or water) attached to the first inner frame 2 will flow into the long hole 221 of the first inner frame 2 along the inner edge of the pipe body 22 and drip down to the drain groove member 5, and then attach to the second inner frame 3. The waste oil (or water) of the exhaust pipe 4 will be introduced into the oil drain groove member 5, and then discharged from the first lower exhaust hole 13 and the second lower exhaust hole 14 of the outer cover 1 along the oil drain groove member 5. Prevent the accumulation in the windshield and pipe fittings from affecting the exhaust effect, and will not affect the outlook of the exterior wall of the building.

Please refer to Figure 4, which is the assembled state diagram of the present invention. Please cooperate with the first figure. As shown in the figure, the first inner frame 2 and the second inner frame 3 are sleeved in the assembly of the present invention, and then the positioning rod 52 of the oil drain groove member 5 is inserted through the first inner frame 2 and the second inner frame 3 A through hole 211 of the inner frame 2 constitutes positioning. After assembly, the first inner frame 2 and the second inner frame 3 are sleeved behind the outer cover body 1, and the exhaust pipe 4 is sleeved on the second inner frame 3. Then fix the first inner frame 2 and the second inner frame 3 and the outer cover 1 to the opening 71 of the wall 7 at the end of the exhaust pipe of the range hood by the fixing hole 611 of the fixing part 61 of the positioning member 6 Supply exhaust gas from the exhaust pipe.

Please refer to FIG. 5 and FIG. 6 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 from the range hood of the present invention is discharged along the exhaust pipe 4, it will first pass through the first inner frame 2 and the second inner frame 3 of the windshield, and then enter the outer cover In the body 1, because the inner edge of the outer cover body 1 is provided with a round protrusion 15, after the exhaust gas touches the round protrusion 15, it diffuses outward in the circumferential direction from the arc of the round protrusion 15, and then respectively The exhaust gas is guided to the upper exhaust hole 12, the first lower exhaust hole 13 and the second lower exhaust hole 14 of the outer cover body 1 to be discharged outward. 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.

Please refer to Figure 7, which is a diagram of the action state of the invention for preventing the accumulation of waste oil. Please cooperate with Figure 1. As shown in the figure, the waste oil (or water) 8 present in the exhaust gas is attached to the first inner frame 2 and will flow into the first inner frame along the inner edge of the tube body 22 during the exhaust gas discharge process of the present invention. The long hole 221 of the frame 2 drops down on the oil drain groove member 5, and the waste oil (or water) attached to the second inner frame 3 and the exhaust pipe 4 will be introduced into the oil drain groove member 5. Since the structure of the oil drain groove member 5 includes an arc-shaped seat body 51 provided with a guide groove 511, waste oil (or water) 8 will first drip into the guide groove 511 of the oil drain groove member 5, and then It is discharged from the first lower exhaust hole 13 and the second lower exhaust hole 14 of the outer cover 1 to prevent waste oil (or water) 8 from accumulating in the windshield and affecting the exhaust effect, and to maintain the entire exhaust system and the building The cleanliness of the exterior walls.

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.

In summary, the present invention uses an outer cover provided with an exhaust hole and a round protrusion, a first inner frame and a second inner frame with elongated holes sleeved on the outer cover, and embedded in the first inner frame. The oil drain groove of the inner frame constitutes the oil drain structure of the windshield to be fixed to the end of the exhaust pipe of the range hood to prevent backflow caused by strong external wind and make the exhaust smoother, and can properly discharge waste oil to avoid accumulation in the exhaust The air pipe affects the exhaust effect. For a practical design, it is a creation of 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 12: Upper vent 13: The first lower vent 14: The second lower vent 15: Round protrusion 2: The first inner frame 21: Gakibe 211: Through hole 22: Tube body 221: Long hole 3: The second inner frame 31: Gakibe 32: Tube body 321: Insert groove 4: Exhaust pipe 5: Oil drain groove 51: Block 511: Guide groove 52: Positioning rod 6: Positioning parts 61: Fixed part 611: Fixing hole 62: Hooking part 63: Suspended piece 7: Wall 71: Opening 8: Waste oil (or water) 91: Exhaust hood 92: Smoke exhaust pipe 93: Diversion mesh 94: Smoke outlet 95: Waste oil (or water)

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

1: Outer cover

11: Gakibe

12: Upper vent

13: The first lower vent

14: The second lower vent

15: Round protrusion

2: The first inner frame

21: Gakibe

211: Through hole

22: Tube body

221: Long Hole

3: The second inner frame

31: Gakibe

32: Tube body

321: Insert slot

4: Exhaust pipe

5: Oil drain groove

51: Block

511: guide groove

52: positioning rod

6: Positioning parts

61: fixed part

611: fixed hole

62: hook part

63: Suspended piece

Claims (4)

An oil drain structure for a windshield, including a round cap shape or a square cap shape, an upper vent hole, a first lower vent hole, a second lower vent hole, and an outer cover with a round protrusion on the inner edge One set fixed to the outer cover, with a wall and a tube extending from the wall, a first inner frame with a long hole on the lower edge of the tube; a juxtaposition fixed to the outer cover and The first inner frame is provided with a wall portion and a second inner frame extending the tube from the wall portion. After the first inner frame and the second inner frame are placed on the outer cover, they are fixed to the range hood or bathroom exhaust fan exhaust The wall at the end of the air pipe allows exhaust gas to enter from the first inner frame and the second inner frame, and discharges along the upward vent hole, the first lower vent hole, and the second lower vent hole along the round protrusion of the inner edge of the outer cover. In order to prevent backflow caused by strong external wind and make the exhaust more smooth, it is characterized in that: under the wall of the first inner frame, a rectangular through hole is provided for embedding an oil drain groove. The system includes at least one guide groove, so that waste oil (or water) drips into the guide groove of the oil drain groove member and then discharged from the first lower exhaust hole and the second lower exhaust hole of the outer cover to prevent the waste oil from accumulating in the windproof The inside of the hood affects the exhaust effect. According to the oil drain structure of the windshield described in item 1 of the scope of patent application, the oil drain groove member includes a seat body that is generally arc-shaped, and a guide groove is provided on the seat body and extends from one end of the seat body Two positioning rods of appropriate length are provided for embedding in the through holes under the first inner frame. For example, the oil drain structure of the windshield described in item 1 of the scope of patent application, wherein the surface of the pipe body of the second inner frame is provided with a plurality of embedding grooves for the same number of positioning elements to be embedded in the embeddings. The groove is used to fix the first inner frame, the second inner frame and the outer cover by the positioning parts. For example, the oil drain structure of the windshield described in item 3 of the scope of patent application, wherein the positioning members are in the form of sheets, one end of which is provided with a fixing part, the fixing part is provided with a fixing hole, and the other end is provided with The hooking portion makes the hooking portion hook on the opening edge of the second inner frame pipe body, and fix the first inner frame, the second inner frame and the outer cover through the fixing holes of the fixing portion of the positioning member.

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