Tunnel man-pass safety door

Abstract

The utility model relates to the technical field of safety doors, and discloses a tunnel man-pass safety door which comprises a door frame, a U-shaped mounting plate is fixed on the door frame, an opening of the U-shaped mounting plate faces the bottom of a door leaf, a plurality of mounting holes are formed in the mounting plate and evenly distributed along the door-shaped edge, and the mounting holes are used for mounting expansion screws. The expansion screws are used for fixing the door frame to a port of a tunnel man-pass, a door leaf is rotatably installed in the door frame and is of a hollow structure, a baffle A is fixed to the bottom of an inner cavity of the door leaf and extends towards the top of the door leaf, a baffle B is fixed to the top of the inner cavity of the door leaf and extends towards the bottom of the door leaf, and the baffle A and the baffle B are distributed in a staggered mode. A through hole A is formed in the position, close to the bottom, of the outer door plate, and a through hole B is formed in the position, close to the top, of the inner door plate of the door leaf. The door has the advantages of being simple in structure and low in production cost.

Description

Technical Field

[0001] The utility model relates to the technical field of safety doors, in particular to a tunnel safety door for people to pass through. Background Art

[0002] With the continuous improvement of the layout of my country's railway and highway networks, more and more tunnels are being built and they are getting longer and longer. They have become an indispensable "green channel" for people's travel.

[0003] At present, the common tunnel layout includes a first tunnel and a second tunnel arranged in parallel. The first tunnel and the second tunnel are both main tunnels for pedestrians and vehicles to pass through. At intervals, tunnel cross tunnels are set between the first tunnel and the second tunnel. The tunnel cross tunnels include pedestrian cross tunnels and vehicle cross tunnels, which are evacuation passages for people to escape. For example, when a fire accident occurs in the second tunnel, people in the second tunnel can enter the first tunnel through the tunnel cross tunnel.

[0004] With the development of railway construction and the advancement of science and technology, tunnel excavation methods have developed rapidly. The more commonly used excavation methods are drilling and blasting, shield method and tunnel boring machine method. Since the drilling and blasting method has strong adaptability to geological conditions and low excavation cost, it is particularly suitable for the construction of hard rock tunnels, broken rock tunnels and a large number of short tunnels. Therefore, the drilling and blasting method is still a commonly used tunnel excavation method at home and abroad. During blasting construction, construction workers need to hide in the tunnel cross hole to avoid being injured by the explosion.

[0005] The Chinese utility model patent (authorization announcement number: CN217976312U name: a tunnel safety door structure) includes a tunnel wall, a door frame is fixedly embedded on the tunnel wall, a door panel is rotated in the door frame, a handle is fixed on the door panel, a connecting block is fixed on the handle, a connecting plate is fixed on the door frame, the connecting block and the connecting plate are covered with a gusset plate, an insert block is fixed on the gusset plate, and a slot for inserting and docking with the insert block is arranged on the connecting block and the connecting plate, and a connecting rod is arranged between two adjacent gusset plates. The utility model facilitates the emergency operation of the escape personnel by placing the fixed structure of the door panel and the door frame externally, and the external structure is easier to be damaged when problems occur than the concealed lock. The light texture of the lightweight rock wool board and the fireproof and high temperature resistant effect can greatly reduce the weight of the door panel, avoiding the situation of laboriousness when pushing. However, it is installed and used after the tunnel construction is completed. If it is installed and used in the early tunnel excavation stage, it is easy to be hit by flying stones during the tunnel blasting and excavation, which affects the later use. Utility Model Content

[0006] The utility model aims to provide a tunnel safety door for people to pass through, so as to overcome the shortcomings of the prior art.

[0007] The purpose of the utility model is achieved through the following technical solutions: a tunnel pedestrian safety door, comprising a door frame, the door frame is fixed on the port of the tunnel pedestrian passage, a door leaf is rotatably installed in the door frame, the door leaf is a hollow structure, an A baffle is fixed to the bottom of the inner cavity of the door leaf, the A baffle extends toward the top of the door leaf, a B baffle is fixed to the top of the inner cavity of the door leaf, the B baffle extends toward the bottom of the door leaf, the A baffle and the B baffle are staggered, the A baffle is close to the outer door panel of the door panel, the outer door panel is provided with an A through hole near the bottom, and the inner door panel of the door panel is provided with a B through hole near the top.

[0008] Preferably, a U-shaped mounting plate is fixed on the door frame, the U-shaped opening faces the bottom of the door leaf, and mounting holes are provided on the mounting plate. There are several mounting holes evenly distributed along the edge of the door frame, and the mounting holes are used to install expansion screws.

[0009] Preferably, rolling elements are installed at the four inner corners of the door frame, and the rolling elements are used to move the safety door.

[0010] Preferably, the rolling member comprises a mounting arm and a roller, and the mounting arm is used to mount the roller in the door frame.

[0011] Preferably, it also includes a fixed cylinder, a spring and a screw rod, the fixed cylinder is fixed on the inner wall of the door frame, the cylinder mouth of the fixed cylinder faces the door leaf, the cylinder bottom of the fixed cylinder is provided with a C-through hole, the mounting arm is inserted into the C-through hole, the spring is sleeved on the mounting arm located in the fixed cylinder, a limit pin is provided on the mounting arm located in the fixed cylinder, the limit pin is used to compress the spring and install it in the fixed cylinder, the cylinder mouth of the fixed cylinder is provided with an internal thread, the screw rod is screwed on the fixed cylinder, and the roller is moved out of the door frame by screwing the screw rod.

[0012] Preferably, a waist-shaped hole is opened on the side wall of the fixed cylinder, the waist-shaped hole extends along the axis of the fixed cylinder, and the limiting pin is slidably installed in the waist-shaped hole.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The door has a simple structure and low production cost. When the door is closed, the A and B through holes are respectively located at the top and bottom of the door leaf. At the same time, staggered A and B baffles are arranged between the A and B through holes, which reduces the risk of dust generated during blasting entering the tunnel cross hole. The A and B through holes can also ensure ventilation between the tunnel cross hole and the main tunnel, avoiding breathing difficulties for people hiding in the tunnel cross hole due to lack of oxygen. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1The structure of the utility model is shown in FIG. Figure 1 ;

[0016] Figure 2 It is a structural schematic diagram of the door leaf;

[0017] Figure 3 It is a structural schematic diagram of a rolling element;

[0018] Figure 4 The structure of the utility model is shown in FIG. Figure 2 ;

[0019] In the figure, 1-door frame, 2-door leaf, 3-A baffle, 4-B baffle, 5-A through hole, 6-B through hole, 7-mounting plate, 8-mounting hole, 9-mounting arm, 10-roller, 11-fixed cylinder, 12-spring, 13-screw rod, 14-limit pin, 15-waist hole. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] 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 represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0022] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] like Figure 1 , 2 4, a tunnel manhole safety door comprises a door frame 1, a U-shaped mounting plate 7 is fixed on the door frame 1, the U-shaped opening faces the bottom of the door leaf 2, mounting holes 8 are provided on the mounting plate 7, the mounting holes 8 are multiple and are evenly distributed along the edge of the door frame 1, the mounting holes 8 are used to install expansion screws, and the expansion screws are used to fix the door frame 1 to the port of the tunnel manhole, a door leaf 2 is rotatably installed in the door frame 1, the door leaf 2 is a hollow structure, an A baffle 3 is fixed to the bottom of the inner cavity of the door leaf 2, the A baffle 3 extends toward the top of the door leaf 2, a B baffle 4 is fixed to the top of the inner cavity of the door leaf 2, the B baffle 4 extends toward the bottom of the door leaf 2, and the A The baffles 3 and the B baffles 4 are staggered, and the A baffle 3 is close to the outer door plate of the door leaf 2. The outer door plate is provided with an A through hole 5 near the bottom, and the inner door plate of the door leaf 2 is provided with a B through hole 6 near the top. The door structure is simple and the production cost is low. At the same time, when the door is closed, the A and B through holes 6 are respectively located at the top and bottom of the door leaf 2. At the same time, staggered A and B baffles 4 are also arranged between the A and B through holes 6, which reduces the risk of dust generated during blasting entering the tunnel cross hole. The A and B through holes 6 can also ensure ventilation in the tunnel cross hole and the main tunnel, and avoid breathing difficulties due to lack of oxygen for people hiding in the tunnel cross hole.

[0027] In this embodiment, if Figure 3 and 4As shown, rolling members are installed at the four inner corners of the door frame 1. The rolling members are used to transfer the safety door. The rolling members include a mounting arm 9 and a roller 10. The mounting arm 9 is used to install the roller 10 in the door frame 1, so that the safety door can move conveniently following the tunnel excavation, avoiding manual lifting and reducing the labor intensity of workers.

[0028] In this embodiment, if Figure 3 As shown, it also includes a fixed cylinder 11, a spring 12 and a screw rod 13. The fixed cylinder 11 is fixed on the inner wall of the door frame 1, the cylinder mouth of the fixed cylinder 11 faces the door leaf 2, and a C through hole is opened at the bottom of the cylinder of the fixed cylinder 11. The mounting arm 9 is inserted into the C through hole. The spring 12 is sleeved on the mounting arm 9 located in the fixed cylinder 11. The mounting arm 9 located in the fixed cylinder 11 is provided with a limit pin 14. The limit pin 14 is used to compress the spring 12 and install it in the fixed cylinder 11. The cylinder mouth of the fixed cylinder 11 is provided with an internal thread. The screw rod 13 is screwed on the fixed cylinder 11. The roller 10 is moved out of the door frame 1 by screwing the screw rod 13. When the installed door is idle and stored, the roller 10 is received in the door frame 1 to protect it to avoid accidental breakage of the mounting arm 9.

[0029] In this embodiment, if Figure 3 As shown, a waist-shaped hole 15 is opened on the side wall of the fixed cylinder 11, and the waist-shaped hole 15 extends along the axis of the fixed cylinder 11. The limit pin 14 is slidably installed in the waist-shaped hole 15 to prevent the installation arm 9 from rotating during the movement of the door frame 1, thereby affecting the movement of the door frame 1.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tunnel safety door, comprising a door frame (1), wherein the door frame (1) is fixed to a port of the tunnel, and a door leaf (2) is rotatably mounted in the door frame (1), characterized in that: The door leaf (2) is a hollow structure. An A baffle (3) is fixed to the bottom of the inner cavity of the door leaf (2). The A baffle (3) extends toward the top of the door leaf (2). A B baffle (4) is fixed to the top of the inner cavity of the door leaf (2). The B baffle (4) extends toward the bottom of the door leaf (2). The A baffle (3) and the B baffle (4) are arranged in an alternating manner. The A baffle (3) is close to the outer door panel of the door leaf (2). The outer door panel is provided with an A through hole (5) near the bottom. The inner door panel of the door leaf (2) is provided with a B through hole (6) near the top.

2. A tunnel safety door for people according to claim 1, characterized in that: A U-shaped mounting plate (7) is fixed on the door frame (1), the U-shaped opening faces the bottom of the door leaf (2), and mounting holes (8) are provided on the mounting plate (7). The mounting holes (8) are in a plurality and are evenly distributed along the edge of the door frame (1), and the mounting holes (8) are used for installing expansion screws.

3. A tunnel safety door according to claim 1, characterized in that: Rolling members are installed at the four inner corners of the door frame (1), and the rolling members are used to move the safety door.

4. A tunnel safety door according to claim 3, characterized in that: The rolling element comprises a mounting arm (9) and a roller (10); the mounting arm (9) is used to mount the roller (10) in the door frame (1).

5. A tunnel safety door for people according to claim 4, characterized in that: The invention also comprises a fixed cylinder (11), a spring (12) and a screw rod (13), wherein the fixed cylinder (11) is fixed on the inner side wall of the door frame (1), the cylinder mouth of the fixed cylinder (11) faces the door leaf (2), the cylinder bottom of the fixed cylinder (11) is provided with a C through hole, the mounting arm (9) is inserted into the C through hole, the spring (12) is sleeved on the mounting arm (9) located in the fixed cylinder (11), the mounting arm (9) located in the fixed cylinder (11) is provided with a limit pin (14), the limit pin (14) is used to compress and install the spring (12) in the fixed cylinder (11), the cylinder mouth of the fixed cylinder (11) is provided with an internal thread, the screw rod (13) is screwed on the fixed cylinder (11), and the roller (10) is moved out of the door frame (1) by screwing the screw rod (13).

6. A tunnel safety door according to claim 5, characterized in that: A waist-shaped hole (15) is provided on the side wall of the fixed cylinder (11), the waist-shaped hole (15) extends along the axis of the fixed cylinder (11), and the limiting pin (14) is slidably installed in the waist-shaped hole (15).

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