Novel smoke exhaust pipeline fitting

Abstract

A novel smoke exhaust pipeline accessory comprises a barrel, an air inlet is formed in the lower end of the barrel, an air outlet is formed in the upper end of the barrel, a smoke exhaust support and a smoke exhaust leaf are arranged in the barrel, an air outlet is formed in the smoke exhaust support, and the smoke exhaust leaf is rotationally arranged above the smoke exhaust support; when the tobacco discharging leaf is in an undetermined state, the exhaust port is closed; the smoke discharging leaf rotates upwards under the pushing action of smoke to open the exhaust port, and the air inlet is communicated with the air outlet through the exhaust port; and the tobacco discharging leaves rotate downwards to reset to an undetermined state under the action of gravity. According to the smoke exhaust pipeline accessory, the smoke exhaust support and the smoke exhaust leaf piece are arranged in the barrel, the smoke exhaust leaf piece closes the exhaust port when in the undetermined state, the smoke exhaust leaf piece rotates upwards under the pushing action of smoke to open the exhaust port, smoke exhaust is achieved, and the smoke exhaust leaf piece rotates downwards under the action of gravity to reset to the undetermined state. The tobacco discharging leaves are automatically opened and closed according to the smoke pressure and do not need to be controlled by a control device, so that the structure is simple, and the cost and the price are low.

Description

Technical Field

[0001] This utility model relates to the field of smoke exhaust valve technology, and in particular to a novel smoke exhaust pipe fitting. Background Technology

[0002] Currently, smoke exhaust valves on the market are divided into two types: manual control and automatic control. Automatic control smoke exhaust valves are generally controlled by a control device, which requires electricity. These types of smoke exhaust valves are generally more complex in structure and have higher costs and prices. If there is a power outage or no power supply in the area where the smoke exhaust valve is located, the smoke exhaust valve will not work.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of this utility model is to provide a new type of smoke exhaust pipe fitting that is simple in structure, low in cost, highly applicable, highly efficient in smoke exhaust, and highly practical, so as to overcome the shortcomings of the existing technology.

[0005] A novel smoke exhaust duct fitting designed for this purpose includes a cylinder with an air inlet at the lower end and an air outlet at the upper end. The cylinder is characterized by having a smoke exhaust support and smoke exhaust blades inside. The smoke exhaust support has an exhaust port, and the smoke exhaust blades are rotatably positioned above the support. In a ready state, the smoke exhaust blades close the exhaust port. Under the influence of flue gas, the smoke exhaust blades rotate upwards to open the exhaust port, connecting the air inlet to the exhaust port. Under gravity, the smoke exhaust blades rotate downwards to return to the ready state.

[0006] The cylinder is equipped with an upper smoke chamber and a lower smoke chamber that are interconnected. The air inlet is connected to the lower smoke chamber, and the air outlet is connected to the upper smoke chamber. A guide slope is provided between the upper smoke chamber and the lower smoke chamber to guide the flue gas to flow upward.

[0007] The diameter of the lower smoke chamber is larger than the diameter of the upper smoke chamber.

[0008] The outer side of the cylinder is provided with an outwardly protruding reinforcing flange.

[0009] The exhaust bracket is equipped with a support part, which is located on the outer periphery of the exhaust port. When the exhaust blade is in the waiting state, its bottom is supported on the support part.

[0010] The cylinder is equipped with a rotating shaft, and one end of the exhaust blade is equipped with a rotating hole. The rotating shaft is rotatably connected to the rotating hole.

[0011] The exhaust ports are symmetrically arranged on both sides of the smoke exhaust bracket, and the smoke exhaust blades are symmetrically arranged on both sides of the cylinder. The smoke exhaust blades are arranged in correspondence with the exhaust ports, and the two smoke exhaust blades open and close to each other when they rotate.

[0012] The outer edge of the smoke exhaust support 4 is provided with an upwardly extending connecting part which is fixed on the cylinder by fasteners or buckles.

[0013] A filter screen is arranged on the exhaust port for filtering smoke.

[0014] The smoke exhaust support is fixedly arranged in the upper smoke chamber, and the smoke exhaust blade is rotatably arranged in the upper smoke chamber.

[0015] The smoke exhaust pipeline accessory of the utility model is provided with a smoke exhaust support and a smoke exhaust blade in the cylinder, the smoke exhaust blade is closed to the exhaust port in the standby state, the smoke exhaust blade is rotated upward under the pushing of smoke to open the exhaust port, smoke is exhausted, the smoke exhaust blade is rotated downward and reset to the standby state under the action of gravity, the smoke exhaust blade is automatically opened and closed according to the smoke pressure, and no control device is needed for control, so the structure is relatively simple, the cost and price are relatively low, and the utility model is easy to manufacture and maintain, and no power control is needed, and the utility model can work in the place without power supply. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a half sectional view of the smoke exhaust pipeline accessory in an embodiment of the utility model.

[0017] Fig. 2 It is a sectional view of the smoke exhaust pipeline accessory in an embodiment of the utility model.

[0018] Fig. 3 It is a front view of the smoke exhaust pipeline accessory in an embodiment of the utility model. DETAILED DESCRIPTION

[0019] The utility model will be further described in combination with the drawings and embodiments.

[0020] Referring to Figs. 1-3 The utility model smoke exhaust pipeline accessory, including cylinder 1, the lower end of cylinder 1 is provided with air inlet 2, the upper end is provided with air outlet 3, cylinder 1 is provided with smoke exhaust support 4 and smoke exhaust blade 5 in, smoke exhaust support 4 is provided with exhaust port 6, smoke exhaust blade 5 is rotatably arranged above smoke exhaust support 4;Smoke exhaust blade 5 is closed to exhaust port 6 in the standby state;Smoke exhaust blade 5 is rotated upward under the pushing of smoke to open exhaust port 6, air inlet 2 is communicated with air outlet 3 through exhaust port 6, and smoke is exhausted to the outside in turn through air inlet 2, exhaust port 6 and air outlet 3, realizes smoke exhaust;When there is no smoke into cylinder 1, smoke exhaust blade 5 is rotated downward and reset to the standby state under the action of gravity to reseal exhaust port 6;Through the automatic adjustment of smoke exhaust blade 5, the discharge of smoke can be effectively controlled, and the smoke exhaust efficiency is improved;The utility model smoke exhaust pipeline accessory is a smoke exhaust valve and is suitable for the occasion needing to automatically control smoke discharge, such as kitchen exhaust system, industrial exhaust system etc.

[0021] The upper smoke cavity 7 and the lower smoke cavity 8 are arranged in the cylinder 1 and communicate with each other, the air inlet 2 communicates with the lower smoke cavity 8, the air outlet 3 communicates with the upper smoke cavity 7, the flow guide slope 9 is arranged between the upper smoke cavity 7 and the lower smoke cavity 8 and is used for guiding the upward flow of the flue gas, and the flow guide slope 9 can improve the flow efficiency of the flue gas.

[0022] The diameter of the lower smoke cavity 8 is greater than the diameter of the upper smoke cavity 7, so that the flue gas converges in the cylinder 1, and the flow rate of the flue gas is improved.

[0023] The outer side of the cylinder 1 is provided with the outwardly protruding reinforcing flange 10, and the reinforcing flange 10 can strengthen the structural strength of the cylinder 1.

[0024] The support part 11 is arranged on the smoke exhaust support 4, the support part 11 is located on the outer circumferential side of the air outlet 6, the bottom of the smoke exhaust blade 5 is supported on the support part 11 in the standby state, and the support part 11 can prevent the smoke exhaust support 4 from falling downward in the standby state.

[0025] The rotating shaft 12 is arranged in the cylinder 1, one end of the smoke exhaust blade 5 is provided with a rotating hole, the rotating shaft 12 is rotationally connected with the rotating hole, and then the smoke exhaust blade 5 is rotationally arranged on the cylinder 1.

[0026] The air outlets 6 are respectively and symmetrically arranged on the left and right sides of the smoke exhaust support 4, the smoke exhaust blades 5 are respectively and symmetrically arranged on the left and right sides of the cylinder 1, the smoke exhaust blades 5 are correspondingly arranged with the air outlets 6, the two smoke exhaust blades 5 are opened and closed with each other when rotating, the two smoke exhaust blades 5 are folded to each other when rotating upward (as shown in Fig. 2 ), and the two smoke exhaust blades 5 are opened when rotating downward.

[0027] The outer edge of the smoke exhaust support 4 is provided with the upwardly extending connecting part 13, the connecting part 13 is fixed on the cylinder 1 through fasteners (such as screws) or buckles, and then the smoke exhaust support 4 is fixed on the cylinder 1.

[0028] The filter screen 14 for filtering the flue gas is arranged on the air outlet 6, the filter screen 14 is installed on the air outlet 6 through screws or buckles, the flue gas is filtered through the filter screen 14 and then discharged from the cylinder 1, and the environment can be prevented from being polluted by the flue gas.

[0029] The smoke exhaust support 4 is fixedly arranged in the upper smoke cavity 7, and the smoke exhaust blade 5 is rotationally arranged in the upper smoke cavity 7.

[0030] The above is the preferred scheme of the utility model, and the basic principle, main features and advantages of the utility model are displayed and described. Those skilled in the art should understand that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only for illustrating the principle of the utility model. The utility model can have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A new type of smoke exhaust duct accessory, comprising a cylinder (1), the lower end of the cylinder (1) is provided with an air inlet (2), and the upper end is provided with an air outlet (3), characterized in that: The cylinder (1) is provided with a smoke exhaust support (4) and a smoke exhaust vane (5). The smoke exhaust support (4) is provided with an exhaust port (6), and the smoke exhaust vane (5) is rotatably arranged above the smoke exhaust support (4). The smoke exhaust vane (5) closes the exhaust port (6) in the standby state. The smoke exhaust vane (5) rotates upward under the action of smoke to open the exhaust port (6), so that the air inlet (2) is communicated with the air outlet (3) through the exhaust port (6). The smoke exhaust vane (5) rotates downward under the action of gravity and resets to the standby state.

2. A novel smoke evacuation conduit fitting according to claim 1 characterised in that: The cylinder (1) is provided with an upper smoke chamber (7) and a lower smoke chamber (8) which are communicated with each other. The air inlet (2) is communicated with the lower smoke chamber (8), the air outlet (3) is communicated with the upper smoke chamber (7), and a flow guide slope (9) for guiding the upward flow of smoke is arranged between the upper smoke chamber (7) and the lower smoke chamber (8).

3. A novel smoke evacuation conduit fitting according to claim 2, characterised in that: The diameter of the lower smoke chamber (8) is greater than that of the upper smoke chamber (7).

4. The novel venting duct fitting of claim 1, wherein: The outer side of the cylinder (1) is provided with an outwardly protruding reinforcing flange (10).

5. The novel venting duct fitting of claim 1, wherein: The smoke exhaust support (4) is provided with a supporting portion (11) which is located on the outer circumferential side of the exhaust port (6). The bottom of the smoke exhaust vane (5) is supported on the supporting portion (11) in the standby state.

6. The novel venting duct fitting of claim 1, wherein: The cylinder (1) is provided with a rotating shaft (12), and one end of the smoke exhaust vane (5) is provided with a rotating hole. The rotating shaft (12) is rotatably connected with the rotating hole.

7. The novel venting duct fitting of claim 1, wherein: The exhaust ports (6) are symmetrically arranged on both sides of the smoke exhaust support (4), and the smoke exhaust vanes (5) are symmetrically arranged on both sides of the cylinder (1). The smoke exhaust vanes (5) are correspondingly arranged with the exhaust ports (6), and the two smoke exhaust vanes (5) are opened and closed with each other when rotating.

8. The novel venting duct fitting of claim 1, wherein: The outer edge of the smoke exhaust support (4) is provided with an upwardly extending connecting portion (13) which is fixed on the cylinder (1) by fasteners or buckles.

9. The novel venting duct fitting of claim 1, wherein: The exhaust port (6) is provided with a filter screen (14) for filtering smoke.

10. The novel venting duct fitting of claim 2, wherein: The smoke exhaust support (4) is fixedly arranged in the upper smoke chamber (7), and the smoke exhaust vane (5) is rotatably arranged in the upper smoke chamber (7).

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