Novel air door

By combining a transfer gear connection with an infrared beam signal, the problem of asynchronous opening and closing of underground ventilation doors was solved, enabling synchronized opening and closing of ventilation doors and safe commuting, thus reducing the safety risks of underground ventilation equipment.

CN223814069UActive Publication Date: 2026-01-20LUWA COAL MINE OF SHANDONG LUTAI HOLDING GROUP CO LTD +1
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Patent Information

Application Number
CN202520119326.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2026-01-20
Estimated Expiration
2035-01-20

AI Technical Summary

Technical Problem

Existing underground ventilation doors open and close asynchronously due to linkage deformation and wear, which can easily obstruct vision and increase the risk of commuting accidents.

Method used

The drive mechanism of the two door panels is connected by a transfer gear to ensure that the door panels open and close synchronously. The alarm device is triggered when the door is fully opened by an infrared beam signal unit to avoid obstruction of vision.

Benefits of technology

It improves the synchronization rate of air dampers, ensures safe commuting, avoids vehicle collisions, and enhances the safety of underground ventilation equipment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223814069U_ABST
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Abstract

A novel air door comprises an air door body, an alarm device and a correlation signal unit. The air door main body comprises a door frame, two door shafts are hinged in the door frame, and the two door shafts are respectively connected with a door plate A and a door plate B; an air door driving mechanism is arranged on the door frame, the driving mechanism is in power connection with a driving gear, the driving gear is in power connection with a door shaft of the door plate A, and the driving gear is in power connection with a door shaft of the door plate B through a transfer gear; opposite emission signal units are oppositely arranged on the wall surface of the roadway on the attached side of the door plate in the opening state; the correlation signal unit is in signal connection with the alarm devices, and the alarm devices are arranged on the two sides of the air door body respectively. The problems that in the prior art, the opening and closing synchronization rate of the air door is low, and sight is severely shielded by opposite opening and closing are solved, particularly, alarm in the commuting state is achieved in cooperation with infrared correlation signals, stable collision of adjacent vehicles due to sight shielding and the like is avoided, and the use safety of the air door is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of underground ventilation equipment, especially a novel air door. BACKGROUND

[0002] Underground ventilation safety is the key of underground safety production, and the commonly used ventilation equipment includes air door, air window and air duct; wherein the air door equipment has the advantages of large ventilation volume and rapid regulation of air pressure, and has the function of traffic.

[0003] The air door in the prior art is usually a double-leaf air door, that is, two air doors are opened and closed in opposite directions through a connecting rod mechanism. The disadvantage of this air door is a common understanding in the industry, that is, after being used for a long time, the connecting rod deforms and the transmission parts wear, which causes the air doors to be out of sync when opening and closing. Especially since the air door has the function of traffic, and the underground environment is dark and complex, involving slope changes, etc., the opening and closing of the two air doors are out of sync, and the line of sight is easily blocked, which can easily cause traffic accidents, such as hitting the air door when not fully opened or colliding with another vehicle. In view of this problem, there is currently still a lack of corresponding solutions. SUMMARY

[0004] The utility model aims at overcoming the shortcomings of the prior art, and provides a novel air door with high synchronization rate, and the air door is opened and closed on the same side to avoid blocking the line of sight, and based on the complete opening and closing of the air door, the infrared signal is used to ensure traffic safety.

[0005] The equipment includes an air door body, an alarm device and a signal transmission unit;

[0006] The air door body includes a door frame, two door shafts are hingedly arranged in the door frame, and door plate A and door plate B are connected to the two door shafts, respectively;

[0007] An air door driving mechanism is arranged on the top of the door frame, a driving mechanism is power-connected to a driving gear, the driving gear is power-connected to the door shaft of door plate A, and the driving gear is power-connected to the door shaft of door plate B through a transfer gear;

[0008] The effect achieved thereby is that the opening and closing directions of door plate A and door plate B are the same by configuring the transfer gear;

[0009] A signal transmission unit is arranged on the roadway wall surface on the side of the door plate opening state;

[0010] The signal transmission unit is signal-connected to the alarm device, and the alarm device is arranged on both sides of the air door body.

[0011] The effect achieved is that when the damper is open, it blocks the through-beam signal unit, disconnects the signal of the through-beam signal unit, triggers the alarm device, and the alarm devices on both sides of the damper report the commuting signal, thus avoiding collisions between vehicles traveling in sync.

[0012] The beneficial effects of this utility model are: This utility model solves the problems of low synchronization rate of damper opening and closing in the prior art and serious obstruction of vision when opening and closing in opposite directions. In particular, it realizes alarm in commuting status with infrared beam signal, avoids stable collisions between nearby vehicles due to obstruction of vision, and improves the safety of damper use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a novel damper according to the present invention;

[0014] Figure 2 Based on Figure 1 A schematic diagram of the drive mechanism structure from a top-down view;

[0015] Figure 3 This is a schematic diagram illustrating an embodiment of a novel damper according to this utility model;

[0016] Figure label:

[0017] 1-Air damper body; 2-Drive mechanism; 3-Drive gear; 4-Intermediate gear; 5-Rotating gear; 6-Through-beam signal unit; 7-Alarm device

[0018] 11-Escape Door

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] Reference Figure 1 , Figure 2 The present invention provides a novel air damper, comprising an air damper body 1, an alarm device 7, and a beam signal unit 6.

[0021] The damper body 1 includes a door frame, and two door hinges are hinged inside the door frame. The two door hinges are respectively connected to door panel A and door panel B.

[0022] A damper drive mechanism 2 is provided on the door frame. The drive mechanism 2 is powered by a drive gear 3. The drive gear 3 is powered by a door hinge of door panel A. The drive gear 3 is powered by a transfer gear 4 and connected to the door hinge of door panel B.

[0023] The effect achieved in this way is that by configuring the transfer gear 4, the opening and closing directions of door panel A and door panel B are the same;

[0024] The opposite side of the tunnel wall surface is provided with a pair of signal units 6;

[0025] The pair of signal units 6 are signal connected to the alarm device, and the alarm device is arranged on both sides of the air door body 1.

[0026] The effect achieved is that when the air door is opened, the pair of signal units 6 are shielded, the signal of the pair of signal units 6 is interrupted, the alarm device 7 is triggered, and the alarm devices 7 on both sides of the air door send the commuting signal, avoiding the synchronous driving collision of vehicles.

[0027] Further, the door plate A or the door plate B is provided with an escape door 11.

[0028] Further, the escape door 11 is hingedly arranged on the door plate A or the door plate B, and the escape door 11 is locked with the door plate through a mechanical lock.

[0029] The effect achieved is that the escape door 11 can be directly opened in the power-off state.

[0030] Further, one side of the door plate A and the door plate B, that is, the side edge of the door plate is provided with a sealing rubber strip.

[0031] The door shaft is rotatably arranged in the door frame.

[0032] Further, the driving mechanism 2 includes a servo motor and a speed reducer, the servo motor is power connected to the speed reducer, and the speed reducer is power connected to the driving gear 3.

[0033] The effect achieved is that the door plate in the air door body 1 can be synchronously opened and closed to both sides, that is, based on the forward and reverse rotation of the servo motor, the door plate can be synchronously opened clockwise or counterclockwise.

[0034] Further, the air door is provided with a pair of signal units 6 on both sides, and the pair of signal units 6 include an infrared signal transmitter and an infrared signal receiver.

[0035] Further, the driving mechanism 2 is signal connected to the driver.

[0036] Preferably, the driver is a key type driver or a remote controller.

[0037] The effect achieved is that referring to the drawings Figure 3 When the vehicle passes through the air door, the air door is controlled to be opened in the direction of travel by the driver, the air door is synchronously opened and closed on the same side to avoid visual shielding; the completely opened air door shields the pair of signal units 6, the alarm device 7 near the air door synchronously prompts the commuting signal, and avoids the collision of the incoming vehicle.

[0038] Further, the door shaft is provided with a rotating gear 5, and the driving gear 3, the transfer gear 4 and the rotating gear 5 are synchronous gears, and the driving gear 3, the transfer gear 4 and the rotating gear 5 are connected by a synchronous belt.

[0039] The effect achieved by this is to improve the synchronization rate of the opening and closing of the air door.

[0040] The basic principle and main features of the present application and the advantages of the present application are shown and described above, for those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting and the claims.

[0041] In addition, it should be understood that, although the present application is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A new type of air door, comprising an air door body, an alarm device and a pair of signal units; the air door body comprises a door frame, two door shafts are hingedly arranged in the door frame, and door plate A and door plate B are connected to the two door shafts respectively; an air door driving mechanism is arranged on the top of the door frame, characterized in that: The driving mechanism is power-connected with the driving gear, the driving gear is power-connected with the door shaft of the door plate A, and the driving gear is power-connected with the door shaft of the door plate B through the transfer gear; Opposite to the tunnel wall surface on the side of the door plate in the open state, there is oppositely arranged a pair of signal units; The pair of signal units are signal-connected with the alarm device, and the alarm device is separately arranged on the two sides of the air door body.

2. A novel damper as claimed in claim 1, wherein, The door plate A or the door plate B is provided with an escape door.

3. A novel damper as claimed in claim 2, wherein, The escape door is hingedly arranged on the door plate A or the door plate B, and the escape door is locked with the door plate through a mechanical lock.

4. A new damper as claimed in claim 1, wherein, The door plate A and the door plate B are provided with a sealing rubber strip on the side of the door plate. The door shaft is rotatably arranged in the door frame.

5. A new damper as claimed in claim 1, wherein, The driving mechanism comprises a servo motor and a speed reducer, the servo motor is power-connected with the speed reducer, and the speed reducer is power-connected with the driving gear.

6. A new damper as claimed in claim 1, wherein, The air door is provided with a pair of signal units on the two sides, and the pair of signal units comprises an infrared signal emitter and an infrared signal receiver.

7. A new damper as claimed in claim 1, wherein, The driving mechanism is signal-connected with the driver.

8. A new damper as claimed in claim 1, wherein, The door shaft is provided with a rotating gear, the driving gear, the transfer gear and the rotating gear are synchronous gears, and the driving gear, the transfer gear and the rotating gear are power-connected through a synchronous belt.