Two-way adjustable hinge for mining air door

Abstract

The utility model discloses a bidirectional adjustable hinge for a mining air door. The bidirectional adjustable hinge comprises a door frame hinge, a door leaf hinge, a connecting rod sleeve, a bearing, an adjusting bolt and an adjusting nut. Vertical displacement of the door leaf is achieved by rotating the adjusting bolt, the horizontal position is controlled by rotating the adjusting nut, and the problem of sealing failure caused by installation deviation of the heavy air door is solved. The method is especially suitable for high-corrosion mine environments.

Description

Technical Field

[0001] This utility model relates to the technical field of mine ventilation equipment, and in particular to a bidirectional adjustable hinge for a mine ventilation door. Background Technology

[0002] Coal mine ventilation is one of the most basic conditions for ensuring personnel safety and normal production, and air doors are an important component of ventilation equipment. Mine ventilation doors are installed in ventilation systems to both isolate airflow and allow passage for pedestrians or vehicles. Due to the harsh environment in mines, with high levels of humidity and corrosive gases, existing mine ventilation doors generally use high-density, corrosion-resistant materials for the door frame and door leaf to improve their service life and save production costs. To further improve the service life of the door leaf, metal reinforcing plates are usually added to the door leaf, resulting in a heavy door leaf. Using traditional door leaf hinges to connect the door frame and door leaf often leads to malfunctions, deformation, and lateral deviation due to the excessive weight of the door leaf, thus reducing its service life. To improve the service life and operational flexibility of mine ventilation doors, it is essential to develop a reasonably structured, adjustable hinge. Summary of the Invention

[0003] To overcome the shortcomings of existing technologies, this utility model provides a bidirectional adjustable hinge for mine ventilation doors, characterized in that it includes:

[0004] A door frame hinge, comprising a steel plate with bolt holes, a door frame pivot sleeve, and reinforcing plates, wherein the door frame pivot sleeve is provided with internal threads;

[0005] A door hinge, comprising a steel plate with bolt holes and a door hinge bushing, wherein the door hinge bushing has a through hole and an adjusting nut on each side;

[0006] A connecting rod sleeve, comprising a connecting sleeve and a lead screw, wherein the connecting sleeve has a through hole and the lead screw is connected to the door leaf pivot sleeve of the door leaf hinge;

[0007] The bearing is fitted onto the adjusting bolt;

[0008] The adjusting bolt passes through the bearing, the connecting sleeve of the connecting rod sleeve, and the door frame pivot sleeve in sequence, and is fixed at the top by the adjusting nut.

[0009] Furthermore, in order to better realize this utility model, the adjusting bolt is threadedly engaged with the door frame pivot sleeve, and the threaded rod of the connecting rod sleeve passes through the door leaf pivot sleeve and is locked by adjusting nuts on both sides.

[0010] Furthermore, in order to better realize this utility model, the stiffening plate of the door frame hinge is welded between the steel plate and the door frame pivot sleeve.

[0011] Furthermore, in order to better realize this utility model, the adjusting bolt drives the door hinge to move up and down when it rotates.

[0012] Furthermore, in order to better realize this utility model, the adjusting nuts on both sides of the door hinge can be rotated to drive the door hinge to move left and right.

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

[0014] This utility model features an adjustable hinge. Workers can adjust the door's position relative to the door frame vertically by rotating the adjusting bolt and horizontally by rotating the adjusting nut, thus achieving bidirectional adjustment of the door in both horizontal and vertical directions. This effectively improves the flexibility of damper installation and ensures the damper's sealing performance after installation. Attached Figure Description

[0015] Figure 1 This is the front view of the present invention;

[0016] Figure 2 This is a top view of the present invention.

[0017] In the picture,

[0018] 1. Door frame hinges, 2. Door leaf hinges, 3. Connecting rod sleeves, 4. Bearings, 5. Adjusting bolts, 6. Adjusting nuts. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] Figures 1-2 This is a specific embodiment of the present invention, which is an adjustable hinge for an underground ventilation door in a coal mine.

[0022] The door frame hinge includes: a steel plate with several bolt holes, a door frame pivot sleeve, and a stiffening plate. The door frame pivot sleeve has threads that mate with the adjusting bolts. The door frame pivot sleeve is fixedly connected to the steel plate with several bolt holes. The stiffening plate serves to strengthen the door frame. The door frame hinge is fixedly connected to the door frame, and the fixing method is not limited. Generally, there are two or more door frame hinges.

[0023] The door hinge includes: a steel plate with several bolt holes, a door hinge bushing, the door hinge bushing having a through hole matching the threaded rod of the connecting rod bushing, and an adjusting nut on each side for adjusting and fixing the position of the door leaf. The door hinge bushing is fixedly connected to the steel plate with several bolt holes. Ribs can also be added at appropriate positions as needed. The door hinge is fixedly connected to the door leaf, and the fixing method is not limited. Generally, there are two or more door hinges.

[0024] The connecting rod sleeve includes: a connecting sleeve, a lead screw, the lead screw being fixedly connected to the connecting rod sleeve (the fixing method is not limited), and the connecting sleeve having a through hole matching the adjusting bolt. A bearing is also included, which is fitted onto the adjusting bolt, and a mounting washer is provided below it.

[0025] The adjusting bolt is assembled from the bottom up with the following components: gasket, bearing, connecting rod sleeve, and door frame pivot sleeve. A nut secures the top of the assembly. The adjusting bolt and the door frame pivot sleeve are threaded together, and the bolt is connected to the connecting rod sleeve via a sleeve connection, allowing them to rotate relative to each other.

[0026] The specific operation method of this embodiment is as follows:

[0027] The door frame is fixed. Rotating the adjusting bolts can move the door leaf up and down. Rotating the adjusting nuts on both sides of the connecting rod sleeve can move the door leaf left and right, thus achieving bidirectional adjustment of the door leaf in both horizontal and vertical directions.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A bidirectional adjustable hinge for a mine ventilation door, characterized in that, include: Door frame hinge (1), including a steel plate with bolt holes, a door frame pivot sleeve and a stiffening plate, wherein the door frame pivot sleeve is provided with internal threads; Door hinge (2), including a steel plate with bolt holes and a door hinge bushing, wherein the door hinge bushing is provided with a through hole and an adjusting nut (6) on each side. The connecting rod sleeve (3) includes a connecting sleeve and a screw rod. The connecting sleeve has a through hole, and the screw rod is connected to the door leaf pivot sleeve of the door leaf hinge (2). The bearing (4) is fitted onto the adjusting bolt (5); The adjusting bolt (5) passes through the bearing (4), the connecting sleeve of the connecting rod sleeve (3) and the door frame pivot sleeve in sequence, and is fixed at the top by the adjusting nut (6).

2. The bidirectional adjustable hinge for a mine ventilation door according to claim 1, characterized in that: The adjusting bolt (5) is threadedly engaged with the door frame pivot sleeve, and the threaded rod of the connecting rod sleeve (3) passes through the door leaf pivot sleeve and is locked by the adjusting nuts (6) on both sides.

3. The bidirectional adjustable hinge for a mine ventilation door according to claim 1, characterized in that: The stiffening plate of the door frame hinge (1) is welded between the steel plate and the door frame pivot sleeve.

4. The bidirectional adjustable hinge for a mine ventilation door according to claim 1, characterized in that: When the adjusting bolt (5) rotates, it drives the door hinge (2) to move up and down.

5. The bidirectional adjustable hinge for a mine ventilation door according to claim 1, characterized in that: The adjusting nuts (6) on both sides of the door hinge (2) can be rotated to drive the door hinge (2) to move left and right.

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