A special-shaped split fire door for coal mines

Abstract

The utility model belongs to the technical field of tunnel fire safety, and specifically relates to a special-shaped split fire door for coal mines; it comprises a door frame, two main door leaves and two auxiliary door leaves, the two main door leaves are installed on the door frame in the form of opening left and right, and the main door leaves are connected to the door frame through a first hinge; the two auxiliary door leaves are respectively installed on the two main door leaves, the main door leaves are provided with windows with an open structure on the opening and closing side of the main door leaves, and the auxiliary door leaves are connected to the main door leaves through a second hinge; the auxiliary door leaves comprise a first auxiliary door leaf and a second auxiliary door leaf, the first auxiliary door leaf is provided with a pumping pipeline window, and the pumping pipeline window extends to the opening and closing side of the first auxiliary door leaf as an open structure; the main door leaf is connected with a first locking mechanism, and the auxiliary door leaf is connected with a second locking mechanism; on the basis of the original whole door, the steel plate passing through the pumping pipeline area is transformed into an irregular shape, so that when the fire door is closed for emergency treatment, it is not necessary to disconnect the pumping pipeline, and the fire door leaf can be quickly closed.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel fire safety, and in particular relates to a special-shaped split fireproof door for coal mines. Background Art

[0002] The current fire safety situation in coal mines is becoming increasingly serious. In order to prevent and suppress the spread and development of fires, prevent the spread of smoke, and meet the needs of emergency fire prevention and extinguishing, fire doors are currently installed in underground mining areas (pan areas), mining working faces and other locations according to regulations. However, due to irresistible factors in some tunnels, such as narrow space (bottom extraction tunnels) and insufficient return air sections (return air tunnels), the traditional fire doors are forced to pass through the fire door frame due to the conditions of force majeure in some tunnels, such as narrow space (bottom extraction tunnels) and insufficient return air sections (return air tunnels). As a result, the fire door leaf cannot be immediately closed due to the influence of the extraction pipelines in the event of a fire, and the needs of emergency fire prevention and extinguishing cannot be met. For this reason, we proposed a special-shaped split fire door. Utility Model Content

[0003] The utility model aims to solve the problem mentioned in the background technology that the fire door leaf cannot be immediately closed due to the influence of the extraction pipeline when a fire occurs.

[0004] The utility model provides the following technical solutions: a coal mine special-shaped split fire door, comprising a door frame, two main door leaves and two auxiliary door leaves, the two main door leaves are installed on the door frame in a left-right opening form, and the main door leaves are connected to the door frame through a first hinge; the two auxiliary door leaves are respectively installed on the two main door leaves, the main door leaves are provided with windows with an open structure on the opening and closing side of the main door leaves, the auxiliary door leaves are used to cover the windows of the main door leaves, the auxiliary door leaves are connected to the main door leaves through a second hinge, and the second hinge is located on one side of the first hinge; the auxiliary door leaves include a first auxiliary door leaf and a second auxiliary door leaf, the first auxiliary door leaf is provided with a pumping pipeline window, and the pumping pipeline window extends to the opening and closing side of the first auxiliary door leaf as an open structure; the second auxiliary door leaf is a complete structure; the main door leaf is connected with a first locking mechanism, and the auxiliary door leaf is connected with a second locking mechanism.

[0005] Furthermore, the main door leaf includes a first main door leaf and a second main door leaf, and the first locking mechanism includes a first buckle and a first slot structure. The first buckle is hinged to the first main door leaf, and the hinge axis is perpendicular to the first main door leaf. The first slot structure is installed on the second main door leaf. The slot opening of the first slot structure is upward and through to the left and right. The first buckle can swing around the hinge axis and can be buckled into the first slot structure or moved out of the first slot structure. After the first buckle is buckled into the first slot structure, the part that passes over the first slot structure is provided with an anti-slip portion, and the anti-slip portion limits the first buckle from escaping laterally from the first slot structure.

[0006] Furthermore, the second locking mechanism includes a second buckle and a second slot structure. The second buckle has the same structure as the first buckle, and the second slot structure has the same structure as the first slot structure. The second buckle is hinged to the first auxiliary door leaf, the hinge axis is perpendicular to the first auxiliary door leaf, and the second slot structure is installed on the second auxiliary door leaf.

[0007] Furthermore, the first retaining edge on the first main door leaf is pressed on the second main door leaf, and the second retaining edge on the first auxiliary door leaf is pressed on the second auxiliary door leaf.

[0008] Furthermore, a bent steel bar is connected to the door frame.

[0009] Compared with the prior art, the advantages of the present invention are:

[0010] The utility model provides a special-shaped split fire door for coal mines. On the basis of the original whole door, the steel plate in the area where the extraction and discharge pipelines pass is transformed into an irregular shape. When the fire door is closed for emergency disposal, there is no need to disconnect the extraction and discharge pipelines. The fire door leaf can be quickly closed, and the excess part is tightly sealed with a blocking material or a steel plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] In the figure: 1-first main door leaf; 2-second main door leaf; 3-first auxiliary door leaf; 4-second auxiliary door leaf; 5-first hinge; 6-second hinge; 7-pipeline extraction and release window; 8-first buckle; 9-first slot structure; 10-anti-slip part; 11-second buckle; 12-second slot structure; 13-first retaining edge; 14-second retaining edge; 15-elevated steel bar. DETAILED DESCRIPTION

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] like Figure 1As shown: a coal mine special-shaped split fire door, including a door frame, two main door leaves and two auxiliary door leaves, the main door leaves and the auxiliary door leaves are both steel plate structures, the two main door leaves are installed on the door frame in the form of left and right openings, and the main door leaves are connected to the door frame through a first hinge 5; the two auxiliary door leaves are respectively installed on the two main door leaves, and the main door leaves are provided with windows with an open structure on the opening and closing side of the main door leaves, and the auxiliary door leaves are used to cover the windows of the main door leaves, and the auxiliary door leaves are connected to the main door leaves through a second hinge 6, and the second hinge 6 is located on one side of the first hinge 5; the auxiliary door leaves include The first auxiliary door leaf 3 and the second auxiliary door leaf 4, the main door leaf includes the first main door leaf 1 and the second main door leaf 2, the first auxiliary door leaf 3 is located on the first main door leaf 1, the second auxiliary door leaf 4 is located on the second main door leaf 2, the first auxiliary door leaf 3 is provided with a pumping pipeline window 7, the pumping pipeline window 7 extends to the opening and closing side of the first auxiliary door leaf 3 to form an open structure, during normal production, the first auxiliary door leaf 3 and the first main door leaf 1 can be opened and closed freely; the second auxiliary door leaf 4 is a complete structure; the main door leaf is connected with a first locking mechanism, and the auxiliary door leaf is connected with a second locking mechanism.

[0015] After the extraction pipeline passes through the first auxiliary door leaf 3, the vacant part of the extraction pipeline window 7 is blocked with a steel plate or a blocking material. In case of fire, the butterfly valve located outside the fire door on the extraction pipeline is closed, and the entire fire door is completely closed and tight.

[0016] The first locking mechanism includes a first buckle 8 and a first slot structure 9. The first buckle 8 is hinged to the first main door leaf 1, and the hinge axis is perpendicular to the first main door leaf 1. The first slot structure 9 is installed on the second main door leaf 2. The slot opening of the first slot structure 9 is upward and left and right. The first buckle 8 swings around the hinge axis and can be buckled into the first slot structure 9 or removed from the first slot structure 9. After the first buckle 8 is buckled into the first slot structure 9, the part that passes over the first slot structure 9 is provided with an anti-slip portion 10, and the anti-slip portion 10 restricts the first buckle 8 from lateral slipping out of the first slot structure 9. The end of the first buckle 8 is provided with an elbow to form the anti-slip portion 10.

[0017] The second locking mechanism includes a second buckle 11 and a second slot structure 12. The second buckle 11 has the same structure as the first buckle 8, and the second slot structure 12 has the same structure as the first slot structure 9. The second buckle 11 is hinged to the first auxiliary door leaf 3, and the hinge axis is perpendicular to the first auxiliary door leaf 3. The second slot structure 12 is installed on the second auxiliary door leaf 4.

[0018] In order to increase the sealing effect at the door gap, the first retaining edge 13 on the first main door leaf 1 is pressed on the second main door leaf 2 , and the second retaining edge 14 on the first auxiliary door leaf 3 is pressed on the second auxiliary door leaf 4 .

[0019] The door frame is connected with an elbow steel bar 15, and when the door frame is installed, the elbow steel bar 15 is embedded in the masonry.

[0020] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A special-shaped split fire door for coal mines, characterized by: The invention comprises a door frame, two main door leaves and two auxiliary door leaves, wherein the two main door leaves are installed on the door frame in a left-right opening manner, and the main door leaves are connected to the door frame via a first hinge (5); the two auxiliary door leaves are respectively installed on the two main door leaves, and the main door leaves are provided with windows with an open structure on the opening and closing side of the main door leaves, and the auxiliary door leaves are used to cover the windows of the main door leaves, and the auxiliary door leaves are connected to the main door leaves via a second hinge (6), and the second hinge (6) is located on one side of the first hinge (5); the auxiliary door leaves comprise a first auxiliary door leaf (3) and a second auxiliary door leaf (4), and the first auxiliary door leaf (3) is provided with a pumping pipeline window (7), and the pumping pipeline window (7) extends to the opening and closing side of the first auxiliary door leaf (3) to form an open structure; the second auxiliary door leaf (4) is a complete structure; the main door leaf is connected to a first locking mechanism, and the auxiliary door leaf is connected to a second locking mechanism.

2. A coal mine special-shaped split fire door according to claim 1, characterized in that: The main door leaf comprises a first main door leaf (1) and a second main door leaf (2), the first locking mechanism comprises a first buckle (8) and a first slot structure (9), the first buckle (8) is hinged to the first main door leaf (1), the hinge axis is perpendicular to the first main door leaf (1), the first slot structure (9) is installed on the second main door leaf (2), the slot opening of the first slot structure (9) is upward and through to the left and right, the first buckle (8) can swing around the hinge axis and buckle into the first slot structure (9) or move out of the first slot structure (9), and the first buckle (8) is buckled into the first slot structure (9) and the part that passes over the first slot structure (9) is provided with an anti-slip portion (10), and the anti-slip portion (10) limits the first buckle (8) from escaping laterally from the first slot structure (9).

3. A coal mine special-shaped split fire door according to claim 2, characterized in that: The second locking mechanism comprises a second buckle (11) and a second slot structure (12); the second buckle (11) has the same structure as the first buckle (8); the second slot structure (12) has the same structure as the first slot structure (9); the second buckle (11) is hinged to the first auxiliary door leaf (3); the hinge axis is perpendicular to the first auxiliary door leaf (3); and the second slot structure (12) is installed on the second auxiliary door leaf (4).

4. The coal mine special-shaped split fire door according to claim 2, characterized in that: The first retaining edge (13) on the first main door leaf (1) is pressed on the second main door leaf (2), and the second retaining edge (14) on the first auxiliary door leaf (3) is pressed on the second auxiliary door leaf (4).

5. The coal mine special-shaped split fire door according to claim 1, characterized in that: The door frame is connected with an elbow steel bar (15).

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