Water inflow prevention type smoke exhaust air opening

Abstract

The utility model belongs to the technical field of smoke exhaust air ports, and relates to a water inflow prevention type smoke exhaust air port which comprises a shell body, an air inlet is formed in the top end of the shell body, and an air outlet is formed in the bottom end of the shell body. A plurality of air guide shutters are arranged in the air inlet at intervals, and a shutter air opening structure is formed between every two adjacent air guide shutters. A water tank fixed in the shell body is arranged below each shutter air port, and a water outlet corresponding to the water tank is formed in the outer side wall of the shell body; a control unit is arranged on one side of the shell body and connected with an opening and closing mechanism which is installed in the shell body and located below the water tank. The water inflow prevention type smoke exhaust port is reasonable in design, simple in structure, low in manufacturing cost and convenient to assemble, has a water inflow prevention function, can prevent water from entering the smoke exhaust pipe under the condition that smoke is exhausted, not only can guarantee normal operation of a smoke exhaust system, but also can prolong the service life of the smoke exhaust pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke exhaust air outlets, in particular to a water-proofing smoke exhaust air outlet. Background Art

[0002] At present, the smoke exhaust air outlets in underground garages or bare-top rooms are generally installed at the lower part or side of the smoke exhaust pipe. The main function of the smoke exhaust air outlet is to exhaust smoke. However, in actual use, this traditional design has the following defects:

[0003] 1. When the smoke exhaust air outlet is arranged at the lower part of the smoke exhaust pipe, due to the low setting position of the air outlet, the high-temperature smoke at the top or between the beams cannot be effectively exhausted in time.

[0004] 2. When the smoke exhaust air outlet is arranged at the side of the smoke exhaust pipe, on the one hand, due to the low setting position of the air outlet, the high-temperature smoke at the top or between the beams cannot be effectively exhausted in time; on the other hand, due to the relatively flat smoke exhaust pipe, the side opening size is small and the number is large.

[0005] At present stage, in order to overcome the above defects, the staff will arrange the smoke exhaust air outlet at the top of the smoke exhaust duct. When the smoke exhaust air outlet is arranged at the top of the smoke exhaust pipe, although the setting position of the air outlet is high and the high-temperature smoke at the top or between the beams can be effectively exhausted in time, this structure does not take measures to prevent the self-spray water flow from entering the smoke exhaust pipe, which is easy to cause the smoke exhaust system to fail.

[0006] The reason for the water entering the smoke exhaust pipe is that the space where the smoke exhaust system is set is usually equipped with an automatic sprinkler system, and the automatic sprinkler system is located above the smoke exhaust pipe. When a fire occurs, the sprinkler head operates to spray water, and the water will enter the smoke exhaust system through the smoke exhaust air outlet arranged at the top. Since most of the smoke exhaust pipes are made of galvanized iron sheet, on the one hand, the smoke exhaust pipe will be corroded after water enters, which will damage the fire resistance limit or smoke leakage of the air duct; on the other hand, the water will enter the fan along the smoke exhaust pipe, thus causing the smoke exhaust system to fail. Content of the Utility Model

[0007] The purpose of the utility model is to overcome the deficiency of water entering the smoke exhaust air outlet in the prior art, and provide a water-proofing smoke exhaust air outlet, which has reasonable design, simple structure, low manufacturing cost and is convenient for assembly, has the function of preventing water from entering, can prevent the smoke exhaust pipe from entering water while discharging smoke, not only can ensure the normal operation of the smoke exhaust system, but also can extend the service life of the smoke exhaust pipe.

[0008] The present utility model is achieved through the following technical solutions: A water-proof smoke exhaust air outlet, comprising a shell body. An air inlet is provided at the top end of the shell body, and an air outlet is provided at the bottom end of the shell body. The shell body is installed on the smoke exhaust pipe and is communicated with the smoke exhaust pipe through its air outlet. Inside the air inlet, a number of air guiding louvers are arranged at intervals. Both ends of the air guiding louvers are respectively connected to the inner side walls of the shell body, and a structure of a louver air outlet is formed between every two adjacent air guiding louvers. Below each louver air outlet, a water tank fixed inside the shell body is provided. Both ends of the water tank are respectively connected to the inner side walls of the shell body, and a drain port corresponding to the water tank is provided on the outer side wall of the shell body. A control unit is provided on one side of the shell body. The control unit is connected to an opening and closing mechanism installed inside the shell body and located below the water tank. By controlling the opening and closing mechanism through the control unit, the opening and closing mechanism can close or open the air outlet.

[0009] A further improvement of the present utility model is that the air guiding louvers are of a V-shaped structure, the pointed end of the air guiding louvers faces, and the open end of the air guiding louvers faces downward.

[0010] A further improvement of the present utility model is that the water tank is of a V-shaped structure, the open end of the water tank faces upward, the pointed end of the water tank faces downward, and the open end of the water tank corresponds to the louver air outlet up and down.

[0011] A further improvement of the present utility model is that the drain port is of a triangular structure, and the area of the drain port corresponds to the cross-section of the water tank.

[0012] A further improvement of the present utility model is that the opening and closing mechanism includes an opening and closing blade and a rotating shaft. Below the water tank, a number of opening and closing blades installed inside the shell body are provided. The opening and closing blades are assembled on the rotating shaft, and the rotating shaft is connected to the control unit.

[0013] A further improvement of the present utility model is that three opening and closing blades are provided. When the three opening and closing blades are in a horizontal state, the air outlet can be completely closed.

[0014] It can be seen from the above technical solutions that the beneficial effects of the present utility model are as follows: The design of this smoke exhaust air outlet is reasonable, the structure is simple, the manufacturing cost is low and it is convenient for assembly. Through the cooperation of the air guiding louvers and the water tank, this smoke exhaust air outlet has the function of preventing water from entering. When discharging smoke, it can prevent water from entering the smoke exhaust pipe, which can not only ensure the normal operation of the smoke exhaust system, but also extend the service life of the smoke exhaust pipe. Brief Description of the Drawings

[0015] To more clearly illustrate the technical solution of the present utility model, the accompanying drawings required in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0016] Figure 1 It is a schematic top view structure diagram of a specific embodiment of the present utility model.

[0017] Figure 2 It is a schematic structure diagram of the drain outlet of a specific embodiment of the present utility model.

[0018] Figure 3 It is a schematic structure diagram between the air guiding louver, the water tank and the rotating shaft of a specific embodiment of the present utility model.

[0019] Figure 4 It is a closed state diagram of the opening and closing mechanism of a specific embodiment of the present utility model.

[0020] Figure 5 It is an open state diagram of the opening and closing mechanism of a specific embodiment of the present utility model.

[0021] 1. Shell body; 101. Drain outlet; 2. Air guiding louver; 3. Water tank; 4. Opening and closing blade; 5. Rotating shaft; 6. Louver air outlet; 7. Control unit. Specific embodiments

[0022] To make the purpose, features, and advantages of the present utility model more obvious and understandable, the technical solutions in the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the specific embodiments. Obviously, the embodiments described below are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments in this patent, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this patent.

[0023] Now refer to the attached Figures 1-5, in conjunction with specific embodiments, is described as follows: An anti-water-inlet smoke exhaust air vent according to the present utility model includes a housing body 1. An air inlet is provided at the top end of the housing body 1, and an air outlet is provided at the bottom end of the housing body 1. The housing body 1 is installed on a smoke exhaust pipe and is communicated with the smoke exhaust pipe through its air outlet; a plurality of air guiding louvers 2 are arranged at intervals inside the air inlet. The two ends of the air guiding louver 2 are respectively connected to the inner side walls of the housing body 1, and a structure of a louver air vent 6 is formed between every two adjacent air guiding louvers 2; a water tank 3 fixed inside the housing body 1 is provided below each louver air vent 6. The two ends of the water tank 3 are respectively connected to the inner side walls of the housing body 1, and a drain port 101 corresponding to the water tank 3 is provided on the outer side wall of the housing body 1; a control unit 7 is provided on one side of the housing body 1. The control unit 7 is connected to an opening and closing mechanism installed inside the housing body 1 and located below the water tank 3. The opening and closing mechanism can be controlled by the control unit 7 so that the opening and closing mechanism can close or open the air vent.

[0024] Specifically, the air guiding louver 2 has a V-shaped structure. The pointed end of the air guiding louver 2 faces, and the open end of the air guiding louver 2 faces downward.

[0025] Specifically, the water tank 3 has a V-shaped structure. The open end of the water tank 3 faces upward, the pointed end of the water tank 3 faces downward, and the open end of the water tank 3 corresponds to the louver air vent 6 up and down.

[0026] The working principle of the present utility model:

[0027] The air guiding louvers 2 of this smoke exhaust air vent mainly play a role in guiding the flow. The water tank 3 arranged below the louver air vent 6 is mainly used for collecting water. The V-shaped air guiding louvers 2 can change the direction of the flue gas, thereby improving the smoke exhaust effect of the louver air vent 6, and this V-shaped structure is also more conducive to guiding the water entering the air vent into the water tank 3; at the same time, the V-shaped water tank 3 can drain water better and prevent the water tank 3 from accumulating water. The control unit 7 mainly links the opening and closing mechanism and plays a role in closing or opening the air vent.

[0028] When a fire occurs, the smoke detector installed in the building interior sends a fire alarm signal to the control center; at this time, on the one hand, the control center outputs an electrical signal to the control unit 7 of this smoke exhaust air vent, and the control unit 7 quickly controls the opening and closing mechanism to open, that is, the louver air vent 6 conducts smoke exhaust; on the other hand, the control center will simultaneously open the automatic sprinkler system, and the sprinkler head starts to spray water. With the cooperation of the air guiding louvers 2 and the water tank 3, the water entering the air vent will be guided into the water tank 3 and discharged through the drain port 101, thereby playing a role in preventing water from entering and avoiding water from entering the smoke exhaust system.

[0029] In one embodiment, the drain opening 101 has a triangular structure, and the area of the drain opening 101 corresponds to the cross-section of the water tank 3. The design of the drain opening 101 with a triangular structure can perfectly match the water tank 3, thus being more conducive to draining the accumulated water in the water tank 3.

[0030] In one embodiment, the opening and closing mechanism includes an opening and closing blade 4 and a rotating shaft 5. A plurality of opening and closing blades 4 installed inside the housing body 1 are arranged below the water tank 3. The opening and closing blades 4 are assembled on the rotating shaft 5, and the rotating shaft 5 is connected to the control unit 7. For the specific structures of the opening and closing mechanism and the control unit 7, reference can be made to the prior art. The control unit 7 includes a control system, a motor, a reducer, etc. The control system is used to control the operation of the motor. The motor can drive the rotating shaft 5 to rotate through the reducer, and the rotation of the rotating shaft 5 then drives the opening and closing blades 4 to rotate, thereby closing or opening the air outlet.

[0031] In one embodiment, three opening and closing blades 4 are provided, and the air outlet can be completely closed when the three opening and closing blades 4 are in a horizontal state. The design of the three opening and closing blades 4 is more reasonable, the assembly is simple, and the sealing effect is good.

[0032] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other.

[0033] Terms such as "upper", "lower", "outer side", "inner side", etc. in the specification, claims and above-mentioned drawings of the present utility model, if any, are used to distinguish the relative relationship in position and do not need to be given a qualitative definition. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present utility model described herein can be implemented in an order different from those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0034] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A water-proof smoke exhaust vent, comprising a shell body (1), characterized in that: The top end of the shell body (1) is provided with an air inlet, the bottom end of the shell body (1) is provided with an air outlet, the shell body (1) is mounted on a smoke exhaust pipe and is connected to the smoke exhaust pipe through its air outlet; a plurality of air guide louvers (2) are arranged at intervals inside the air inlet, the two ends of the air guide louvers (2) are respectively connected to the inner side wall of the shell body (1), and a louver air outlet (6) is formed between every two adjacent air guide louvers (2); a louver air outlet (6) is provided below each louver air outlet (6) and is fixed to the shell body ( 1) an internal water tank (3), the two ends of the water tank (3) are respectively connected to the inner wall of the shell body (1), and a drainage port (101) corresponding to the water tank (3) is provided on the outer wall of the shell body (1); a control unit (7) is provided on one side of the shell body (1), and the control unit (7) is connected to an opening and closing mechanism installed inside the shell body (1) and located below the water tank (3), and the opening and closing mechanism is controlled by the control unit (7), so that the opening and closing mechanism can close or open the air outlet.

2. The water-proof smoke exhaust vent according to claim 1, characterized in that: The air guide louver (2) is a V-shaped structure, with the pointed end of the air guide louver (2) facing upward and the open end of the air guide louver (2) facing downward.

3. The water-proof smoke exhaust vent according to claim 2, characterized in that: The water trough (3) is a V-shaped structure, the open end of the water trough (3) faces upward, the pointed end of the water trough (3) faces downward, and the open end of the water trough (3) corresponds to the louver air outlet (6) in the upper and lower directions.

4. The water-proof smoke exhaust vent according to claim 3, characterized in that: The drain outlet (101) is a triangular structure, and the area of ​​the drain outlet (101) corresponds to the cross section of the water tank (3).

5. The water-proof smoke exhaust vent according to claim 4, characterized in that: The opening and closing mechanism comprises an opening and closing blade (4) and a rotating shaft (5). A plurality of opening and closing blades (4) installed inside the shell body (1) are arranged below the water tank (3). The opening and closing blades (4) are assembled on the rotating shaft (5), and the rotating shaft (5) is connected to the control unit (7).

6. The water-proof smoke exhaust vent according to claim 5, characterized in that: Three opening and closing blades (4) are provided, and when the three opening and closing blades (4) are in a horizontal state, the air outlet can be completely closed.

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