Connecting structure of self-resetting air door frame and air door plate

Abstract

The utility model relates to the technical field of underground coal mine ventilation, in particular to a connecting structure of a self-resetting air door frame and an air door plank, which comprises an air door frame and an air door plank, the air door frame is connected with the air door plank through a connecting piece, and the connecting piece comprises a mounting plate fixed on the air door frame. A pair of hinge lugs is arranged on the mounting plate, an outward-extending patch is hinged between the two hinge lugs through a hinge shaft, and the outward-extending patch is fixedly connected with the air door plate; a limiting piece is arranged between the two hinge lugs and located on the side, away from the air door frame, of the hinge shaft. The air door is simple in structure, low in manufacturing cost and convenient to install and maintain, the opening angle of the air door plate can be effectively controlled, the phenomenon that the opening angle of the air door plate is too large and cannot be automatically reset is prevented, and the potential safety hazard of air flow short circuit accidents caused by the fact that an air door is not automatically closed is eliminated.

Description

Technical Field

[0001] This utility model relates to the field of underground ventilation technology in coal mines, specifically a connection structure between a self-resetting door frame and a door panel. Background Technology

[0002] Airlock doors are crucial components of underground ventilation systems in coal mines. They isolate airflow, creating conditions for the on-demand distribution of mine airflow while facilitating pedestrian and transportation access. They play a vital role in ensuring the safety and stability of the ventilation system and meeting the airflow requirements for safe and efficient production at the working face. Currently, most self-resetting airlock doors used in underground roadways have inclined frames, relying on nylon wire ropes to pull the door panel and their own weight to achieve self-closing. However, the wire ropes rub against the frame at corners, and after repeated use, this friction can lead to breakage. This can cause the airlock to open too wide and fail to close automatically, potentially resulting in a short circuit and posing a safety hazard. Utility Model Content

[0003] The present invention aims to solve the above problems and thus provide a connection structure between the self-resetting damper frame and the damper panel.

[0004] The technical solution adopted by this utility model to solve the aforementioned problem is:

[0005] A connection structure for a self-resetting damper frame and damper panel includes a damper frame and a damper panel. The damper frame and damper panel are connected by a connector. The connector includes a mounting plate fixed to the damper frame. The mounting plate has a pair of hinge ears. An extended patch is hinged between the two hinge ears through a hinge shaft. The extended patch is fixedly connected to the damper panel. A limit member is provided between the two hinge ears and on the side of the hinge shaft away from the damper frame.

[0006] Furthermore, the limiting member is a rod or plate that rotates and limits the extension patch, so that the rotation range of the extension patch is between 0-90°.

[0007] Furthermore, the hinge lug is made of angle steel, with the two horizontal sides parallel and opposite each other, and the two vertical sides located on the opposite sides of the two horizontal sides. The hinge lug is made of angle steel, which has a stronger resistance to deformation and prevents the hinge lug from deforming after long-term use.

[0008] Compared with the prior art, the outstanding features of this utility model, which adopts the above technical solution, are:

[0009] This utility model has a simple structure, low manufacturing cost, and convenient installation and maintenance. It can effectively control the opening angle of the damper panel, prevent the damper panel from opening too wide and failing to automatically reset, and eliminate the safety hazard of airflow short circuit caused by the damper not closing automatically. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present utility model;

[0011] Figure 2 This is an embodiment of the present utility model. Figure 1 A partially enlarged structural diagram of section A in the middle;

[0012] The components in the diagram are labeled as follows: damper frame 1, damper panel 2, connector 3, limiter 4, mounting plate 31, hinge lug 32, hinge shaft 33, and extension patch 34. Detailed Implementation

[0013] The present invention will be further described below with reference to embodiments, the purpose of which is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0014] See Figures 1-2 A connection structure for a self-resetting damper frame and damper panel includes a damper frame 1 and a damper panel 2. The damper frame 1 and the damper panel 2 are connected by a connector 3. The connector 3 includes a mounting plate 31 fixed to the damper frame 1. The mounting plate 31 is provided with a pair of hinge ears 32. An extended patch 34 is hinged between the two hinge ears 32 through a hinge shaft 33. The extended patch 34 is fixedly connected to the damper panel 2. A limit member 4 is provided between the two hinge ears 32 and on the side of the hinge shaft 33 away from the damper frame 1.

[0015] Furthermore, the limiting member 4 is a rod or plate that rotates and limits the extension patch 34, so that the rotation range of the extension patch 34 is between 0-90°.

[0016] Furthermore, the hinge ear 32 is made of angle steel, with two horizontal sides parallel to each other vertically, and two vertical sides located on opposite sides of the two horizontal sides. The hinge ear 32 is made of angle steel, which has a stronger resistance to deformation and prevents the hinge ear 32 from deforming after long-term use.

[0017] This utility model has a simple structure, low manufacturing cost, and convenient installation and maintenance. It can effectively control the opening angle of the damper panel, prevent the damper panel from opening too wide and failing to automatically reset, and eliminate the safety hazard of airflow short circuit caused by the damper not closing automatically.

[0018] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.

Claims

1. A connection structure between a self-resetting damper frame and a damper panel, comprising a damper frame and a damper panel, characterized in that: The damper frame and the damper panel are connected by a connector, which includes a mounting plate fixed to the damper frame. The mounting plate has a pair of hinge ears, and an extended patch is hinged between the two hinge ears through a hinge shaft. The extended patch is fixedly connected to the damper panel. A limit member is provided between the two hinge ears and on the side of the hinge shaft away from the damper frame.

2. The connection structure between the self-resetting damper frame and the damper panel according to claim 1, characterized in that: The limiting component is a rod or plate that rotates and limits the extension patch, allowing the extension patch to rotate within a range of 0-90°.

3. The connection structure between the self-resetting damper frame and the damper panel according to claim 1, characterized in that: The hinge lug is made of angle steel, with two horizontal sides parallel to each other vertically, and two vertical sides located on opposite sides of the two horizontal sides.

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