Pneumatic control device of mine air door

Abstract

The utility model discloses a pneumatic control device of a mine air door in the technical field of mechanical shock absorption, which comprises a door frame, a first door plate, a second door plate and a control mechanism, the door frame is inverted U-shaped, the first door plate and the second door plate are symmetrically arranged in the door frame, the first door plate is rotatably connected to one side in the door frame, and the second door plate is rotatably connected to the other side in the door frame. The second door plate is rotationally connected to the other side in the door frame, the control mechanisms are connected to the two sides of the door frame, and the control mechanisms on the two sides of the door frame are connected to the first door plate and the second door plate correspondingly. The air door has the advantages that the first door plate and the second door plate are rotationally connected in the door frame, and the first door plate and the second door plate are respectively provided with an independent control mechanism for controlling the first door plate and the second door plate to be opened and closed, so that the situation that the air door cannot be opened completely when a single air cylinder breaks down is effectively avoided; the opening directions of the first door plate and the second door plate are opposite to facilitate passage during opening.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical shock absorption, and specifically refers to a pneumatic control device for mine air doors. Background Art

[0002] Currently, in mining operations, mine ventilation is a very important link to ensure the safety and production efficiency of mines. Traditional mine ventilation control systems usually rely on manual opening or closing of air doors. This method is not only time-consuming and laborious, but also prone to problems such as poor ventilation due to the inability to respond promptly to emergencies.

[0003] In the prior art, many industrial and mining enterprises adopt more convenient pneumatic non-pressure air doors. The pneumatic non-pressure air door is equipped with a set of pneumatic control devices on the basis of the non-pressure air door. It does not require electricity, only needs to connect compressed air, and pressing a button can control the opening and closing of the non-pressure air door, greatly reducing the labor intensity of underground workers and improving the automation level of the mine. However, the existing air door controls the bidirectional opening and closing of two doors through one cylinder. If the cylinder fails, both doors cannot be opened. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is that the existing air doors are all set with a single cylinder, and if a failure occurs, the air door cannot be opened at all.

[0005] To achieve the above object, the technical solution provided by the utility model is as follows:

[0006] A pneumatic control device for a mine air door, including a door frame, the door frame is set as an inverted U shape, and further includes a first door panel, a second door panel and a control mechanism. The first door panel and the second door panel are symmetrically arranged inside the door frame. The first door panel is rotatably connected to one side inside the door frame, and the second door panel is rotatably connected to the other side inside the door frame. The control mechanism is connected to both sides of the door frame, and the control mechanisms on both sides of the door frame are respectively connected to the first door panel and the second door panel.

[0007] Further, the control mechanism includes a cylinder, a first mounting member and a second mounting member. A first bolt is passed through the first mounting member, and the first bolt is threadedly connected to the first door panel or the second door panel. A second bolt is passed through the second mounting member, and the second bolt is threadedly connected to the door frame. A connecting rod is fixedly connected to the first mounting member. One end of the cylinder is fixedly connected to a first connecting block, and the first connecting block is rotatably connected to the connecting rod. The other end of the cylinder is fixedly connected to a second connecting block, and the second connecting block is rotatably connected to the second mounting member.

[0008] Further, the control mechanisms on the first door panel and the second door panel are centrosymmetric.

[0009] Further, the first door panel and the second door panel that are symmetrical rotate in the same direction.

[0010] Further, first hinge members are symmetrically and fixedly connected to both sides of the door frame at the center. Second hinge members are fixedly connected to both the first door panel and the second door panel. The second hinge member on the first door panel is rotatably connected to the first hinge member on one side of the door frame, and the second hinge member on the second door panel is rotatably connected to the first hinge member on the other side of the door frame.

[0011] Further, the second hinge member is in an L shape.

[0012] Further, handles are fixedly connected to both the first door panel and the second door panel.

[0013] The beneficial effects achieved by the present utility model with the above structure are as follows:

[0014] The first door panel and the second door panel are rotatably connected in the door frame, and both the first door panel and the second door panel are provided with independent control mechanisms to control their opening and closing. Thus, it effectively avoids the situation where the air door cannot be opened at all when a single cylinder fails. The opening directions of the first door panel and the second door panel are opposite, which is convenient for passage when opening. Moreover, the control mechanisms on both the first door panel and the second door panel can be disassembled, which is convenient for maintenance and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a perspective view of the present utility model.

[0016] Figure 2 is a top view of the present utility model.

[0017] Figure 3 is a schematic diagram of the control mechanism of the present utility model.

[0018] Figure 4 is an exploded view of the control mechanism of the present utility model.

[0019] DESCRIPTION OF THE REFERENCE NUMERALS:

[0020] 1. Door frame, 101. First door panel, 102. Second door panel, 103. Handle, 104. First hinge member, 105. Second hinge member, 2. Control mechanism, 201. First mounting member, 202. First bolt, 203. Connecting rod, 204. Cylinder, 205. First connecting block, 206. Second connecting block, 207. Second mounting member, 208. Second bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] As Figures 1-4As shown in the figure, the pneumatic control device of the mine air door includes a door frame 1, the door frame 1 is in an inverted U shape, and further includes a first door panel 101, a second door panel 102 and a control mechanism 2. The first door panel 101 and the second door panel 102 are symmetrically arranged inside the door frame 1. The first door panel 101 is rotatably connected to one side inside the door frame 1, and the second door panel 102 is rotatably connected to the other side inside the door frame 1. The control mechanism 2 is connected to both sides of the door frame 1, and the control mechanisms 2 on both sides of the door frame 1 are respectively connected to the first door panel 101 and the second door panel 102.

[0022] As Figure 3 , 4 shown in the figure, in order to control the opening and closing rotation of the first door panel 101 and the second door panel 102, the control mechanism 2 includes a cylinder 204, a first mounting member 201 and a second mounting member 207. A first bolt 202 is passed through the first mounting member 201, and the first bolt 202 is threadedly connected to the first door panel 101 or the second door panel 102. A second bolt 208 is passed through the second mounting member 207, and the second bolt 208 is threadedly connected to the door frame 1. A connecting rod 203 is fixedly connected to the first mounting member 201. One end of the cylinder 204 is fixedly connected to a first connecting block 205, and the first connecting block 205 is rotatably connected to the connecting rod 203. The other end of the cylinder 204 is fixedly connected to a second connecting block 206, and the second connecting block 206 is rotatably connected to the second mounting member 207.

[0023] As Figure 2 shown in the figure, the control mechanisms 2 on the first door panel 101 and the second door panel 102 are centrosymmetric. The rotation directions of the symmetric first door panel 101 and the second door panel 102 are the same, so that the control mechanisms 2 on the first door panel 101 and the second door panel 102 respectively control the second door panel 102 and the second door panel 102 to rotate towards the inside and outside of the door frame 1.

[0024] As Figure 1 shown in the figure, for the connection between the first door panel 101 and the second door panel 102 and the door frame 1, first hinge members 104 are fixedly connected to both sides of the door frame 1 in a centrosymmetric manner. Second hinge members 105 are fixedly connected to both the first door panel 101 and the second door panel 102. The second hinge member 105 on the first door panel 101 is rotatably connected to the first hinge member 104 on one side of the door frame 1, and the second hinge member 105 on the second door panel 102 is rotatably connected to the first hinge member 104 on the other side of the door frame 1. The second hinge member 105 is in an L shape, and handles 103 are fixedly connected to both the first door panel 101 and the second door panel 102.

[0025] When the utility model is in use, it is controlled by the control mechanisms 2 respectively connected to the first door panel 101 and the second door panel 102, so that the first connecting block 205 on the air cylinder 204 pushes the connecting rod 203 to move, and then pushes the first mounting member 201 to move. Furthermore, the first mounting member 201 on the first door panel 101 drives the first door panel 101 to rotate towards the inside of the door frame 1, and the first mounting member 201 on the second door panel 102 drives the second door panel 102 to rotate towards the outside of the door frame 1 to achieve opening and closing. When the control mechanism 2 needs to be overhauled and maintained, the control mechanism 2 can be disassembled through the first bolt 202 and the second bolt 208.

[0026] In summary: The first door panel 101 and the second door panel 102 are rotatably connected in the door frame 1, and the first door panel 101 and the second door panel 102 are both provided with independent control mechanisms 2 to control their opening and closing, thereby effectively avoiding the situation that the air door cannot be opened at all when a single air cylinder 204 fails. The opening directions of the first door panel 101 and the second door panel 102 are opposite, which is convenient for passing when opening, and the control mechanisms 2 on the first door panel 101 and the second door panel 102 can both be disassembled, thereby facilitating their overhaul and maintenance.

[0027] The above describes the utility model and its implementation manners. This description is not restrictive, and what is shown in the drawings is only one of the implementation manners of the utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative work without departing from the creative purpose of the utility model, they shall fall within the protection scope of the utility model.

Claims

1. Pneumatic control device for mine air door, including a door frame, the door frame is set as an inverted U shape, characterized in that: It further includes a first door panel, a second door panel and a control mechanism. The first door panel and the second door panel are symmetrically arranged inside the door frame. The first door panel is rotatably connected to one side inside the door frame, and the second door panel is rotatably connected to the other side inside the door frame. The control mechanism is connected to both sides of the door frame, and the control mechanisms on both sides of the door frame are respectively connected to the first door panel and the second door panel. The control mechanism includes a cylinder, a first mounting member and a second mounting member. A first bolt is passed through the first mounting member, and the first bolt is threadedly connected to the first door panel or the second door panel. A second bolt is passed through the second mounting member, and the second bolt is threadedly connected to the door frame. A connecting rod is fixedly connected to the first mounting member. One end of the cylinder is fixedly connected to a first connecting block, and the first connecting block is rotatably connected to the connecting rod. The other end of the cylinder is fixedly connected to a second connecting block, and the second connecting block is rotatably connected to the second mounting member.

2. The pneumatic control device for the mine air door according to claim 1, characterized in that: The control mechanisms on the first door panel and the second door panel are centrosymmetric.

3. The pneumatic control device of the mine air door according to claim 2, characterized in that: The first door panel and the second door panel which are symmetric rotate in the same direction.

4. The pneumatic control device for the mine air door according to claim 3, characterized in that: First hinge members are symmetrically and fixedly connected to both sides of the door frame. Second hinge members are fixedly connected to both the first door panel and the second door panel. The second hinge member on the first door panel is rotatably connected to the first hinge member on one side of the door frame, and the second hinge member on the second door panel is rotatably connected to the first hinge member on the other side of the door frame.

5. The pneumatic control device of the mine air door according to claim 4, characterized in that: The second hinge member is L-shaped.

6. The pneumatic control device of the mine air door according to claim 5, characterized in that: Handles are fixedly connected to both the first door panel and the second door panel.

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