Novel electric smoke exhaust valve for tunnel

Abstract

The utility model provides a novel electric smoke exhaust valve for a tunnel, which relates to the technical field of smoke exhaust valves, and comprises a ventilating duct and an adjusting mechanism, the bottom end of the ventilating duct is provided with a groove, the adjusting mechanism is arranged in the ventilating duct, and the adjusting mechanism comprises a transmission part, a moving part, a bottom frame and a smoke exhaust valve, according to the novel electric smoke exhaust valve for the tunnel, all the smoke exhaust valves are grouped, each group shares one control box, the number of the control boxes is reduced, through cooperative use of the smoke exhaust valves and the control boxes, when a fire disaster occurs, the control boxes control two nearby smoke exhaust valves to be opened at the same time, smoke generated by the fire disaster is exhausted out of the tunnel through a ventilation pipeline, and therefore the fire disaster is avoided. Smoke can be prevented from entering other areas of the tunnel, the stepping motor, the gear and the rack are used in cooperation, the stepping motor drives the gear to rotate on one side of the rack in a meshed mode, the position of the smoke exhaust valve can be rapidly changed, the stability of the smoke exhaust valve in the moving process can be guaranteed, and the risk of falling is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke exhaust valves, in particular to a new type of electric smoke exhaust valve for tunnels. Background Art

[0002] Smoke exhaust valves are devices used to control air flow, smoke exhaust and ventilation inside buildings. They play a key role in fire or other emergency situations. In order to achieve smoke exhaust and ventilation through electric control to ensure the air quality in the tunnel and the safety of personnel evacuation, we need a new type of electric smoke exhaust valve for tunnels.

[0003] After searching, the utility model with patent number "CN210509256U" provides "a horizontally installed smoke exhaust air valve with a modular structure for tunnel ventilation and smoke exhaust, including a tunnel pavement and a tunnel vault, the upper end of the tunnel pavement is provided with a tunnel vault, a driving tunnel is opened between the tunnel pavement and the tunnel vault, smoke exhaust air ducts are opened at both ends of the tunnel vault, an axial flow fan chamber is fixedly connected to the rear side of the smoke exhaust air duct, an axial flow fan chamber is equipped with an axial flow fan on the inner wall, an exhaust shaft is fixedly connected to the rear side of the axial flow fan chamber, a smoke exhaust pipe is opened in the middle of the tunnel vault, and both sides of the smoke exhaust pipe are A switching air valve is fixedly installed, and a horizontally installed air valve is fixedly installed at the lower end of the tunnel arch. The horizontally installed air valve penetrates the tunnel arch and is connected to the smoke exhaust duct. When a fire occurs, the remote monitoring system can accurately open the adjacent air valve according to the disaster point and start the axial flow smoke exhaust fan to effectively control the smoke and prevent it from entering other areas of the tunnel. However, the crank mechanism used in the device will cause the parts at the connection to loosen after long-term use, resulting in the risk of falling. In addition, when a fire occurs, the smoke exhaust valve used in the device starts working at the same time, which will cause the airflow to reverse and cause the smoke to flow to the unaffected area.

[0004] Therefore, we provide a new type of electric smoke exhaust valve for tunnels. Utility Model Content

[0005] The purpose of the utility model is to provide a new type of electric smoke exhaust valve for tunnels to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of electric smoke exhaust valve for tunnels, comprising a ventilation duct and an adjustment mechanism, a groove is provided at the bottom end of the ventilation duct, and an adjustment mechanism is installed inside the ventilation duct;

[0007] The regulating mechanism comprises a transmission member, a moving member, a bottom frame and a smoke exhaust valve. The transmission member is installed at the inner bottom end of the ventilation duct, the moving member is installed at one end of the transmission member, the bottom frame is installed on one side of the moving member, and the smoke exhaust valve is installed inside the bottom frame.

[0008] Preferably, the transmission member comprises a connecting block and a stepper motor, the connecting block is welded to the inner bottom end of the ventilation duct, and one side of the connecting block is bolted to the stepper motor.

[0009] Preferably, the moving part includes a gear and a rack, a gear is installed on one end of the stepping motor through an output shaft, and a rack is meshed on one side of the gear.

[0010] Preferably, the rack is fixedly connected to the bottom frame, mounting frames are welded to four sides of the upper end of the bottom frame, and filters are installed on the surfaces of the bottom frame and the mounting frame.

[0011] Preferably, support blocks are welded to both sides of the upper end of the smoke exhaust valve, a support frame is welded to the bottom end of the support block, and the installation frame and the support frame are welded.

[0012] Preferably, a control box is installed on the outside of the ventilation duct, and the control box is electrically connected to the smoke exhaust valve. Fixing plates are welded on both sides of the control box, and the ventilation duct and the fixing plates are bolted.

[0013] Preferably, a fire control module is installed on the front side of the control box, an open key is installed on one side of the surface of the fire control module, and the open key, the close key and the control box are electrically connected.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The tunnel uses a new type of electric smoke exhaust valve, which divides all the smoke exhaust valves into groups. Each group shares a control box, which reduces the number of control boxes. Through the coordinated use of the smoke exhaust valve and the control box, when a fire occurs, the control box controls the two nearest smoke exhaust valves to open at the same time, and the smoke generated by the fire is discharged out of the tunnel through the ventilation duct, which can prevent the smoke from entering other areas of the tunnel;

[0016] 2. Through the coordinated use of stepper motors, gears and racks, the stepper motor drives the gear to mesh and rotate on one side of the rack, which can quickly change the position of the smoke exhaust valve and ensure the stability of the smoke exhaust valve during the movement process to avoid the risk of falling. Through the use of protective nets, surrounding debris can be prevented from entering the interior of the same branch pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a new electric smoke exhaust valve for tunnels of the utility model;

[0018] Figure 2 It is a schematic diagram of the right side structure of the new electric smoke exhaust valve for tunnels of the utility model;

[0019] Figure 3 It is a schematic diagram of the separation structure of the transmission part and the moving part of the utility model;

[0020] Figure 4 This is a schematic diagram of the bottom frame structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the smoke exhaust valve structure of the utility model;

[0022] Figure 6 It is a schematic diagram of the structure of the control box and the fire control module of the utility model;

[0023] Figure 7 The present invention is a flow chart showing the coordination between the control box and the fire control module.

[0024] Numbers in the figure: 1. Ventilation duct; 11. Groove; 2. Adjustment mechanism; 21. Transmission part; 211. Connecting block; 212. Stepping motor; 22. Moving part; 221. Gear; 222. Rack; 23. Bottom frame; 231. Mounting frame; 232. Filter; 24. Smoke exhaust valve; 241. Support block; 242. Support frame; 3. Control box; 31. Fixed plate; 4. Fire control module; 41. Open key; 42. Close key. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Example

[0026] See also Figure 1-5 As shown, the utility model provides an embodiment: a new electric smoke exhaust valve for a tunnel, comprising a ventilation duct 1 and an adjustment mechanism 2, a groove 11 is provided at the bottom end of the ventilation duct 1, and the adjustment mechanism 2 is installed inside the ventilation duct 1;

[0027] The adjusting mechanism 2 includes a transmission member 21, a moving member 22, a bottom frame 23 and a smoke exhaust valve 24. The transmission member 21 is installed at the bottom end of the ventilation duct 1, the moving member 22 is installed at one end of the transmission member 21, the bottom frame 23 is installed on one side of the moving member 22, and the smoke exhaust valve 24 is installed inside the bottom frame 23.

[0028] Furthermore, the transmission member 21 includes a connecting block 211 and a stepper motor 212. The connecting block 211 is welded to the inner bottom end of the ventilation duct 1, and the stepper motor 212 is bolted to one side of the connecting block 211. The connecting block 211 can fix the stepper motor 212, and the stepper motor 212 can drive the gear 221 to rotate.

[0029] Furthermore, the moving part 22 includes a gear 221 and a rack 222. The gear 221 is installed on one end of the stepper motor 212 through the output shaft. The rack 222 is meshed on one side of the gear 221. The gear 221 can change the position of the rack 222. When the position of the rack 222 changes, it can drive the smoke exhaust valve 24 to move.

[0030] Furthermore, the rack 222 is fixedly connected to the bottom frame 23, and mounting frames 231 are welded on all four sides of the upper end of the bottom frame 23. Filters 232 are installed on the surfaces of the bottom frame 23 and the mounting frame 231. The bottom frame 23 and the mounting frame 231 can fix the filter 232, and the filter 232 can prevent surrounding debris from entering.

[0031] Furthermore, support blocks 241 are welded on both sides of the upper end of the smoke exhaust valve 24, and a support frame 242 is welded to the bottom end of the support block 241, and the mounting frame 231 and the support frame 242 are welded. The support block 241 can fix the smoke exhaust valve 24 on the inner side of the support frame 242, and the support frame 242 provides support. Each smoke exhaust valve 24 is provided with an actuator, and the actuators in the same group are connected in parallel to a 24V control box 3. Example

[0032] See also Figure 1 , Figure 2 and Figure 6-7 As shown, in comparison with Example 1, as another implementation of the utility model, a control box 3 is installed on the outside of the ventilation duct 1, and the control box 3 is electrically connected to the smoke exhaust valve 24, fixing plates 31 are welded on both sides of the control box 3, and the ventilation duct 1 and the fixing plates 31 are bolted, and the fixing plates 31 provide installation positioning, so that the control box 3 can be installed on the outside of the ventilation duct 1.

[0033] Furthermore, a fire control module 4 is installed on the front side of the control box 3, an open button 41 is installed on one side of the surface of the fire control module 4, and a close button 42 is installed on the other side of the surface of the fire control module 4, and the open button 41, the close button 42 and the control box 3 are electrically connected, and the open button 41 and the close button 42 can control the operation of the smoke exhaust valve 24 through the control box 3. The control box 3 is connected in series with the fire control module 4, and the fire control module 4 is connected in series with the remote monitoring system.

[0034] Working principle: First, a new type of electric smoke exhaust valve for tunnel is moved to the working position. In the first step, when a fire occurs and the tunnel needs to be exhausted, the stepper motor 212 is controlled to start working. The stepper motor 212 drives the gear 221 to rotate, and the rack 222 rotates on one side of the gear 221. At this time, the rack 222 drives the bottom frame 23 and the smoke exhaust valve 24 to descend. In the third step, the smoke exhaust valve 24 is controlled to start working through the control box 3 through the opening key 41. In the third step, the smoke exhaust valve 24 blocks debris through the filter 232 and exhausts the smoke through the ventilation duct 1. In this way, the use process of a new type of electric smoke exhaust valve for tunnel is completed.

Claims

1. A new type of electric smoke exhaust valve for tunnel, comprising a ventilation duct (1) and an adjustment mechanism (2), characterized in that: A groove (11) is provided at the bottom end of the ventilation duct (1), and an adjustment mechanism (2) is installed inside the ventilation duct (1); The regulating mechanism (2) comprises a transmission member (21), a moving member (22), a bottom frame (23) and a smoke exhaust valve (24); the transmission member (21) is installed at the bottom end of the interior of the ventilation duct (1); the moving member (22) is installed at one end of the transmission member (21); the bottom frame (23) is installed at one side of the moving member (22); and the smoke exhaust valve (24) is installed inside the bottom frame (23).

2. A new type of electric smoke exhaust valve for tunnel according to claim 1, characterized in that: The transmission member (21) comprises a connection block (211) and a stepper motor (212); the connection block (211) is welded to the inner bottom end of the ventilation duct (1); and the stepper motor (212) is bolted to one side of the connection block (211).

3. A new type of electric smoke exhaust valve for tunnel according to claim 2, characterized in that: The moving member (22) comprises a gear (221) and a rack (222); one end of the stepping motor (212) is provided with the gear (221) via an output shaft, and one side of the gear (221) is meshed with the rack (222).

4. A new type of electric smoke exhaust valve for tunnel according to claim 3, characterized in that: The rack (222) and the bottom frame (23) are fixedly connected, four sides of the upper end of the bottom frame (23) are welded with a mounting frame (231), and a filter screen (232) is installed on the surface of the bottom frame (23) and the mounting frame (231).

5. A new type of electric smoke exhaust valve for tunnel according to claim 4, characterized in that: Support blocks (241) are welded to both sides of the upper end of the smoke exhaust valve (24), a support frame (242) is welded to the bottom end of the support block (241), and the installation frame (231) and the support frame (242) are welded.

6. The new electric smoke exhaust valve for tunnel according to claim 1 is characterized in that: A control box (3) is installed on the outside of the ventilation duct (1), and the control box (3) is electrically connected to the smoke exhaust valve (24). Fixing plates (31) are welded on both sides of the control box (3), and the ventilation duct (1) and the fixing plates (31) are bolted.

7. A new type of electric smoke exhaust valve for tunnel according to claim 6, characterized in that: A fire control module (4) is installed on the front side of the control box (3); an opening key (41) is installed on one side of the surface of the fire control module (4); and a closing key (42) is installed on the other side of the surface of the fire control module (4); and the opening key (41), the closing key (42) and the control box (3) are all electrically connected.

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