Electrically hydraulic remote controlled downhole air door

The underground air door, controlled remotely by an electro-hydraulic system, utilizes an air pressure and volume monitor and an electrical control system to achieve intelligent automatic adjustment. This solves the problem of high maintenance costs for existing air doors and improves the ease of use and sealing performance of the air doors.

CN224469170UActive Publication Date: 2026-07-07HUNAN CHENZHOU MINING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN CHENZHOU MINING CO LTD
Filing Date
2025-06-20
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

The existing dampers adjust the ventilation volume by adjusting the opening angle of the door leaf, which leads to a large workload and high cost of maintenance.

Method used

The underground ventilation door, which is remotely controlled by an electro-hydraulic system, is combined with an air pressure and volume monitor, a lifting and adjusting window, an infrared beam sensor, and an electrical control system to achieve intelligent automatic adjustment of ventilation volume. The door is automatically opened and closed through an electro-hydraulic push rod and linkage rod assembly.

Benefits of technology

It achieves intelligent automatic adjustment of ventilation volume, reduces maintenance costs caused by adjustment, and improves the ease of use and sealing of the damper.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an electric hydraulic remote control's downhole air door, including door frame and door leaf, be provided with air pressure and air volume monitor and lift adjustment window on the door leaf, still include electrical control system, air pressure and air volume monitor and lift adjustment window all are connected with electrical control system electricity. Adopt the downhole air door of the application, has realized the intelligent automatic regulation of ventilation volume, has reduced the maintenance cost caused by adjustment at the same time.
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Description

Technical Field

[0001] This utility model belongs to the field of antimony smelting technology, specifically relating to an electro-hydraulic remote-controlled underground ventilation door. Background Technology

[0002] Air doors are common ventilation facilities in mine ventilation systems, mainly used in roadways that isolate airflow while allowing vehicles and personnel to pass through. The construction of air doors must ensure that mine airflow is distributed according to demand, prevent short-circuiting of airflow when the door is open, and ensure a tight seal with no air leakage when closed. In addition to distributing airflow as needed, air doors must also provide sufficient convenience for pedestrians and transport vehicles in the roadway. They should open easily and safely automatically when pedestrians or transport vehicles pass through, and close automatically and tightly afterward.

[0003] Currently, ventilation can only be adjusted by the angle at which the door opens. This method of adjustment not only involves a relatively large amount of engineering work, but also increases the frequency of door maintenance (such as the need to replace the entire door when the hinges are severely worn), resulting in a large workload and high maintenance costs. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide an electro-hydraulic remotely controlled downhole ventilation door, so as to reduce the maintenance costs caused by the adjustment while realizing intelligent automatic adjustment of ventilation volume.

[0005] This utility model solves the above problems through the following technical means:

[0006] This utility model provides an electro-hydraulic remote-controlled downhole air door, including a door frame and a door leaf. The door leaf is equipped with an air pressure and air volume monitor and a lifting adjustment window. It also includes an electrical control system, and the air pressure and air volume monitor and the lifting adjustment window are electrically connected to the electrical control system.

[0007] Furthermore, the door leaf includes a left door leaf and a right door leaf arranged in opposite directions. Both the left door leaf and the right door leaf are hinged to the door frame, and both the left door leaf and the right door leaf are equipped with lifting and adjusting windows.

[0008] Furthermore, both the left and right door panels are equipped with lifting and adjusting window handles.

[0009] Furthermore, it also includes an infrared beam sensor and a door opening and closing mechanism, both of which are electrically connected to the electrical control system.

[0010] Furthermore, the door opening and closing mechanism includes an electro-hydraulic push rod, a drive rod assembly, and a linkage rod assembly. The electro-hydraulic push rod is connected to one of the door panels through the drive rod assembly, and the two door panels are connected to each other through the linkage rod assembly.

[0011] Furthermore, sealing strips are installed at the gaps between the left door leaf and the door frame, the gaps between the right door leaf and the door frame, and the interlocking points between the left and right door leaves.

[0012] Furthermore, it also includes a remote control system that is electrically connected to the electrical control system.

[0013] The beneficial effects of this utility model are:

[0014] This application discloses an electro-hydraulic remote-controlled underground ventilation door, including a door frame and a door leaf. The door leaf is equipped with an air pressure and air volume monitor and a lifting adjustment window. It also includes an electrical control system, with both the air pressure and air volume monitor and the lifting adjustment window electrically connected to the electrical control system. This underground ventilation door uses the air pressure and air volume monitor to monitor the underground ventilation volume in real time, and then feeds the ventilation volume back to the electrical control system. Based on the real-time ventilation data, the electrical control system controls the lifting adjustment window to adjust its size, thereby achieving intelligent automatic adjustment of the ventilation volume. Furthermore, during the adjustment process, there is no need to adjust the entire door leaf, reducing maintenance costs caused by adjustments. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention;

[0017] Figure 2 This is a top view of the assembly of the door frame and door leaf of this utility model. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Through these descriptions, the features and advantages of the present invention will become clearer and more apparent. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them.

[0019] like Figures 1 to 2 As shown, this embodiment discloses an electro-hydraulic remote-controlled downhole air door, including a door frame 1 and a door leaf 2. The door leaf 2 is equipped with an air pressure and air volume monitor 4 and a lifting adjustment window 6. It also includes an electrical control system 7. The air pressure and air volume monitor 4 and the lifting adjustment window 6 are both electrically connected to the electrical control system.

[0020] In this embodiment, the door leaf 2 includes a left door leaf and a right door leaf arranged in opposite directions. Both the left door leaf and the right door leaf are hinged to the door frame, and both the left door leaf and the right door leaf are provided with lifting and adjusting windows.

[0021] In this embodiment, the lift-adjustable window has a car window-like structure, including a window, a shielding component for covering the window, and a drive mechanism for raising and lowering the shielding component. The drive mechanism is electrically connected to the electrical control system. The window size is adjusted by driving the shielding component to rise and fall through the drive mechanism, thereby adjusting the ventilation volume. Preferably, both the left and right door panels are equipped with lift-adjustable window adjustment handles 5. Similar to car windows, the lift-adjustable window 6 can be manually adjusted using the lift-adjustable window adjustment handles 5, increasing the versatility of adjustment.

[0022] It also includes an infrared beam sensor 8 and a door opening and closing mechanism, both of which are electrically connected to the electrical control system 7. In this embodiment, the door opening and closing mechanism includes an electro-hydraulic push rod 3, a drive rod assembly 10, and a linkage rod assembly 11. The electro-hydraulic push rod is connected to one of the door panels through the drive rod assembly, and the two door panels are connected to each other through the linkage rod assembly. When the electro-hydraulic push rod extends or retracts, it can drive one door panel to rotate through the drive rod assembly, and simultaneously drive the other door panel to rotate through the linkage rod assembly, causing the two door panels to close or open.

[0023] The electrical control system 7 mainly includes components such as a controller, contactors, and relays. It can control the extension and retraction of the electro-hydraulic push rod via the contactors and control the raising and lowering of the adjustable window via the relays. The control logic of the electrical control system is existing technology and will not be described further.

[0024] Sealing strips 12 are installed at the gaps between the left door leaf and the door frame, the gaps between the right door leaf and the door frame, and the interlocking points between the left and right door leaves to improve sealing.

[0025] The damper is normally closed. When someone passes by, the infrared beam sensor receives a signal and feeds it back to the electrical control system. The contactor in the electrical control system then engages, controlling the electro-hydraulic actuator to open the damper. If the infrared beam sensor does not detect anyone passing by within 90 seconds (the time can be adjusted according to site requirements) (the timer resets if someone passes by), the electro-hydraulic actuator reverses its movement, closing the damper. Alternatively, manual control buttons can be installed on both sides of the damper for manual opening and closing.

[0026] As a further improvement to the above technical solution, a remote control system 9 electrically connected to the electrical control system 7 is also included. The remote control system is installed in the ground control room and mainly includes an industrial control computer, monitoring software, and communication equipment. The industrial control computer, through controlling the electrical control system, can remotely control the opening and closing of the dampers using its contactors, and can also use its relays to control the raising and lowering of the lifting and adjusting windows, thereby remotely controlling and adjusting the air pressure and airflow. The monitoring software can display the operating status of the dampers, air pressure, airflow, and other information in real time, and provides operation log and alarm information query functions. The communication network uses a wireless communication module for data transmission.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An electro-hydraulic remote-controlled downhole ventilation door, comprising a door frame and a door leaf, characterized in that: The door leaf is equipped with a wind pressure and air volume monitor and a lifting adjustment window, and also includes an electrical control system. The wind pressure and air volume monitor and the lifting adjustment window are both electrically connected to the electrical control system. The door leaf includes a left door leaf and a right door leaf arranged in a double-leaf configuration. The left door leaf and the right door leaf are both hinged to the door frame. The left door leaf and the right door leaf are both equipped with lifting adjustment windows. The left door leaf and the right door leaf are both equipped with lifting adjustment window adjustment handles.

2. The electro-hydraulic remote-controlled downhole ventilation door according to claim 1, characterized in that: It also includes an infrared beam sensor and a door opening and closing mechanism, both of which are electrically connected to the electrical control system.

3. The electro-hydraulic remote-controlled downhole ventilation door according to claim 2, characterized in that: The door opening and closing mechanism includes an electro-hydraulic push rod, a drive rod assembly, and a linkage rod assembly. The electro-hydraulic push rod is connected to one of the door panels through the drive rod assembly, and the two door panels are connected to each other through the linkage rod assembly.

4. The electro-hydraulic remote-controlled downhole ventilation door according to claim 3, characterized in that: Sealing strips are installed at the gaps between the left door leaf and the door frame, the gaps between the right door leaf and the door frame, and the interlocking points between the left and right door leaves.

5. The electro-hydraulic remote-controlled downhole ventilation door according to claim 4, characterized in that: It also includes remote control systems that are electrically connected to the electrical control system.