Linkage control ventilation equipment with fault alarm function for tunnel construction

Abstract

The utility model provides linkage control ventilation equipment with a fault alarm function for tunnel construction. The linkage control ventilation equipment with the fault alarm function for tunnel construction comprises a jet fan, a gas concentration controller and a gas concentration detector, and further comprises an audible and visual alarm, two supporting bases are fixedly installed at the position, close to an air outlet, of the top of the jet fan, and rotating arms are arranged on the two supporting bases; and a mounting plate is fixedly mounted at the bottom of the rotating arm, a plurality of limiting sliding rods are slidably mounted on the mounting plate in a penetrating mode, and the same wind shield is fixedly mounted at the ends, away from the jet fan, of the multiple limiting sliding rods. The linkage control ventilation equipment with the fault alarm function for tunnel construction has the advantages that sound-light alarm can be given out when the jet fan breaks down, related personnel are reminded to troubleshoot and evacuate personnel in time, and the safety of tunnel construction is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel ventilation technical field especially relates to a linkage control ventilation equipment with fault alarm function for tunnel construction. BACKGROUND

[0002] In the process of tunnel construction, some harmful gases, steam, dust and the like are produced, which will affect the respiratory safety of construction personnel, in order to carry out normal construction, the relevant construction units will use the jet fan to carry out the exchange of air inside and outside the tunnel, usually, the gas concentration detector and the controller are arranged in the tunnel, when the gas concentration detector detects that the relevant gas concentration is relatively high, a signal will be sent to the matched controller, the controller receives the signal and controls the jet fan to run, so that the air in the tunnel is discharged outward.

[0003] At present, the tunnel construction ventilation equipment with the jet fan main body lacks the device capable of issuing an alarm when the jet fan fails to normally discharge air, cannot timely send prompt information to the relevant personnel, under this condition, there is a risk that the personnel in the tunnel cannot be timely evacuated. Therefore, it is necessary to provide a new linkage control ventilation equipment with fault alarm function for tunnel construction to solve the above technical problems. SUMMARY

[0004] The utility model solves the technical problem to provide a linkage control ventilation equipment with fault alarm function for tunnel construction, which can issue an audible and visual alarm when the jet fan fails, timely remind the relevant personnel to troubleshoot and evacuate personnel, and is beneficial to improve the safety of tunnel construction.

[0005] In order to solve the above technical problems, the utility model provides a tunnel construction is with linkage control ventilation equipment that has alarm function, it includes: jet flow fan, gas concentration controller and gas concentration detector, still includes audible -visual annunciator, the top of jet flow fan and close to the position of air outlet position fixed installation has two support seat, two support seat on rotation has same rotation axis, the rotation axis is fixed and is provided with rotating arm, one of support seat fixed installation has motor, the output of motor and rotation axis corresponding one end fixed connection, the bottom of rotating arm is fixedly installed with mounting plate, a plurality of limit slide rods are slidably installed on the mounting plate, a plurality of limit slide rods are fixedly installed with same wind -shield at the end away from jet flow fan, a plurality of limit slide rods are fixedly installed with end plate at the end close to jet flow fan, the spring is provided on the limit slide rod, one end of spring is fixedly connected with end plate, the other end is fixedly connected with mounting plate, the wind -shield is fixedly installed with fixed link, the sliding rod is slidably installed on the mounting plate, the sliding rod and fixed link are fixedly installed with conductive block at the end of each other, the side outer wall of mounting plate close to jet flow fan is fixedly installed with electric push rod, the output of electric push rod is fixedly connected with the end of sliding rod away from wind -shield.

[0006] Preferably, the top of the jet flow fan is fixedly installed with a backing plate, and the two support seats are fixedly installed on the top of the backing plate.

[0007] Preferably, the outer wall of the limit slide rod is fixedly provided with a first limit ring, and the outer wall of the sliding rod is fixedly provided with a second limit ring.

[0008] Preferably, the side outer wall of the mounting plate close to the jet flow fan is fixedly installed with a U-shaped frame, and the electric push rod is fixedly installed in the U-shaped frame.

[0009] Preferably, the top of the backing plate is fixedly installed with a limit pile, and the top of the limit pile is in contact with the rotating arm.

[0010] Compared with the related art, the utility model provides a tunnel construction is with linkage control ventilation equipment that has alarm function has the following beneficial effects:

[0011] The utility model provides a tunnel construction is with linkage control ventilation equipment that has alarm function, through the setting of audible -visual annunciator, rotating arm, motor, mounting plate, wind -shield, spring, sliding rod, conductive block etc. part, can trigger audible -visual annunciator operation under the condition that jet flow fan appears fault and cannot normal exhaust, thereby send audible -visual alarm, make relevant personnel can know the information that jet flow fan possibly appears fault in time, in turn can investigate the fault and evacuate personnel in time, be favorable to improving the safety of tunnel construction. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 A preferred embodiment structure diagram of the linkage control ventilation equipment with fault alarm function for tunnel construction provided by the utility model is shown in the figure;

[0013] Figure 2 For Figure 1 A partial structure diagram is shown in the figure;

[0014] Figure 3 For Figure 2 Another angle mechanism diagram is shown in the figure.

[0015] Marked number in the figure: 1, fluidic fan; 2, gas concentration controller; 3, gas concentration detector; 4, audible and visual alarm; 5, base plate; 6, support seat; 7, rotating shaft; 8, rotating arm; 9, motor; 10, mounting plate; 11, limiting slide bar; 12, wind shield; 13, end plate; 14, spring; 15, fixed rod; 16, sliding rod; 17, electric push rod; 18, conductive block. DETAILED DESCRIPTION

[0016] The utility model will be further explained in combination with the drawings and embodiments.

[0017] Please refer to Figures 1-3 Among them, Figure 1 A preferred embodiment structure diagram of the linkage control ventilation equipment with fault alarm function for tunnel construction provided by the utility model is shown in the figure; Figure 2 For Figure 1 A partial structure diagram is shown in the figure; Figure 3 For Figure 2Another perspective of the mechanism is shown. The tunnel construction linkage control ventilation equipment with fault alarm function comprises a jet fan 1, a gas concentration controller 2 and a gas concentration detector 3, the jet fan 1 and the gas concentration detector 3 are electrically connected with the gas concentration controller 2, when the gas concentration detector 3 detects that the relevant gas concentration in the tunnel reaches a predetermined value, a signal is sent to the gas concentration controller 2, after the gas concentration controller 2 receives the signal, the jet fan 1 is controlled to start, and the air in the tunnel is discharged outward, and the linkage control ventilation equipment further comprises an audible and visual alarm 4, a backing plate 5 is fixedly installed on the top of the jet fan 1 and close to the air outlet, two support seats 6 are fixedly installed on the top of the backing plate 5, a same rotating shaft 7 is rotatably installed on the two support seats 6 through bearings, a rotating arm 8 is fixedly sleeved on the rotating shaft 7, an electric motor 9 is fixedly installed on one of the support seats 6, the output end of the electric motor 9 is fixedly connected with one end of the rotating shaft 7 corresponding to the electric motor 9, two hangers are fixedly installed on the bottom of the rotating arm 8, a same installation plate 10 is fixedly installed on the bottom ends of the two hangers, a plurality of limiting sliding rods 11 are slidably installed on the installation plate 10, a same wind shield 12 is fixedly installed on the ends of the limiting sliding rods 11 away from the jet fan 1, when the jet fan 1 operates, the wind shield 12 is moved by the jet fan 1, one end of each of the limiting sliding rods 11 close to the jet fan 1 is fixedly installed with an end plate 13, a spring 14 is sleeved on the limiting sliding rod 11, one end of the spring 14 is fixedly connected with the end plate 13, and the other end of the spring 14 is fixedly connected with the installation plate 10, after the jet fan 1 stops operating, the wind shield 12 is reset under the elastic force of the spring 14, a first limiting ring is fixedly sleeved on the outer wall of the limiting sliding rod 11, in a normal state, the first limiting ring is in contact with the installation plate 10, a fixed rod 15 is fixedly installed in the wind shield 12, a sliding rod 16 is slidably installed on the installation plate 10, and a conductive block 18 is fixedly installed on the ends of the sliding rod 16 and the fixed rod 15 away from each other, the two conductive blocks 18 are connected with wires to form a normally open point, the normally open point is connected in series in the power supply circuit of the audible and visual alarm 4, when the two conductive blocks 18 are in contact, the normally open point is closed, the audible and visual alarm 4 sends out sound and light alarms, an electric push rod 17 is fixedly installed on the side wall of the installation plate 10 close to the jet fan 1, the output end of the electric push rod 17 is fixedly connected with the end of the sliding rod 16 away from the wind shield 12, the electric push rod 17 and the electric motor 9 are electrically connected with the gas concentration controller 2, when the gas concentration controller 2 controls the jet fan 1 to operate, the electric motor 9 is also started to work, the electric motor 9 drives the rotating arm 8 to rotate, the rotating arm 8 drives the installation plate 10, the wind shield 12 and other components to rotate, so that the installation plate 10, the wind shield 12 and other components are rotated to the front of the air outlet of the jet fan 1, then the gas concentration controller 2 controls the electric push rod 17 to move forward, the electric push rod 17 pushes the sliding rod 16 forward, a second limiting ring is fixedly sleeved on the outer wall of the sliding rod 16, when the second limiting ring is in contact with the installation plate 10, the electric push rod 17 stops operating, at this moment, if the jet fan 1 operates normally,So due to the wind deflector 12 is blown by the wind will move forward, so that the fixed rod 15 on the conductive block 18 distance from the mounting plate 10 will be larger, the sliding rod 16 forward to the limit position, its own on the conductive block 18 can not be in contact with the fixed rod 15 on the conductive block 18, the sound and light alarm 4 power supply conditions are not met, so no sound and light alarm; If the jet fan 1 failure and unable to normal exhaust, then the wind deflector 12 will not move, the fixed rod 15 on the conductive block 18 will be in the initial position, then when the sliding rod 16 forward to the limit position, its own on the conductive block 18 will be in contact with the fixed rod 15 on the conductive block 18, so the sound and light alarm 4 power supply conditions are met, then the sound and light alarm, remind the relevant personnel jet fan 1 may be failure and unable to normal exhaust.

[0018] In the embodiment, in order to be able to limit the rotary arm 8, the top of the backing plate 5 is fixedly installed with a limiting pile, and the top of the limiting pile is in contact with the rotary arm 8.

[0019] The working principle of the linkage control ventilation equipment with fault alarm function for tunnel construction provided by the utility model is as follows:

[0020] In the initial state, the mounting plate 10, the wind deflector 12 and other components are located above the jet fan 1, the first limiting ring on the limiting sliding rod 11 is in contact with the mounting plate 10, and there is a gap between the two conductive blocks 18.

[0021] In use, when the gas concentration detector 3 detects that the relevant gas concentration in the tunnel reaches a predetermined value, a signal is sent to the gas concentration controller 2, and the gas concentration controller 2 receives the signal and controls the jet fan 1 to start, so that the air in the tunnel is extracted and discharged to the outside of the tunnel, under the action of the pressure difference, fresh air outside the tunnel enters the tunnel, and air exchange is realized.

[0022] The gas concentration controller 2 controls the motor 9 to run when controlling the jet fan 1 to start, drives the rotary arm 8 to rotate downwards until the rotary arm 8 abuts against the limiting pile, so that the mounting plate 10, the wind deflector 12 and other components originally located above the jet fan 1 are located in front of the air outlet of the jet fan 1, then the gas concentration controller 2 controls the electric push rod 17 to run, drives the sliding rod 16 to move forward until the second limiting ring on the sliding rod 16 abuts against the mounting plate 10, in the case that the jet fan 1 normally operates, the air discharged by the jet fan 1 drives the wind deflector 12 to move forward by a certain distance, therefore, when the sliding rod 16 reaches the limit position of the forward movement, the conductive block 18 on the sliding rod 16 does not abut against the conductive block 18 on the fixed rod 15, the sound and light alarm 4 does not satisfy the power supply condition and does not sound and light alarm, when the jet fan 1 fails to normally discharge air, the wind deflector 12 does not relatively displace the mounting plate 10, the distance between the conductive block 18 on the fixed rod 15 and the mounting plate 10 does not change, when the electric push rod 17 drives the sliding rod 16 to the limit position, the two conductive blocks 18 abut against each other, so that the sound and light alarm 4 is powered and sounds and lights alarm, so that the relevant personnel can timely know the information that the jet fan 1 may fail.

[0023] Compared with the related art, the linkage control ventilation equipment with the fault alarm function for tunnel construction has the following beneficial effects:

[0024] The linkage control ventilation equipment with the fault alarm function for tunnel construction has the following beneficial effects:

[0025] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion according to the content of the utility model specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A linkage control ventilation device for tunnel construction with a malfunction alarm function, comprising a jet fan, a gas concentration controller, and a gas concentration detector, characterized in that, Still include sound light alarm, the top of the jet fan and close to the outlet position fixedly installed with two support seat, two support seat on the same rotating shaft is installed, the rotating shaft is fixedly provided with a rotating arm, one of the support seat is fixedly installed with a motor, the output end of the motor and the rotating shaft corresponding one end fixed connection, the bottom of the rotating arm is fixedly installed with a mounting plate, the mounting plate is installed through and slides a plurality of limiting slide rods, a plurality of limiting slide rods away from the jet fan one end fixedly installed with the same windshield, a plurality of limiting slide rods close to the jet fan one end is fixedly installed with end plate, the limiting slide rod is provided with a spring, spring one end and the end plate fixed connection, the other end and the mounting plate fixed connection, the windshield is fixedly installed with a fixed rod, the mounting plate is installed through and slides a sliding rod, the sliding rod and fixed rod are fixedly installed with a conductive block, the mounting plate close to the jet fan one side wall is fixedly installed with an electric push rod, the output end of the electric push rod and the sliding rod away from the windshield one end fixed connection.

2. The linked control ventilation device for tunnel construction with a malfunction alarm function according to claim 1, characterized in that, The top of the jet fan is fixedly installed with a pad, and the two support seats are fixedly installed on the top of the pad.

3. The linked control ventilation device for tunnel construction with a malfunction alarm function according to claim 1, characterized in that, The outer wall of the limiting slide rod is fixedly provided with a first limiting ring, and the outer wall of the sliding rod is fixedly provided with a second limiting ring.

4. The linked control ventilation device for tunnel construction with a malfunction alarm function according to claim 3, characterized in that, The mounting plate is fixedly installed with a U-shaped frame on the outer wall of the one side close to the jet fan, and the electric push rod is fixedly installed in the U-shaped frame.

5. The linked control ventilation device for tunnel construction with a malfunction alarm function according to claim 2, wherein The top of the pad is fixedly installed with a limiting pile, and the top of the limiting pile is in contact with the rotating arm.

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