Emergency escape device for tunnel construction

Abstract

An emergency escape device for tunnel construction comprises at least two sections of escape pipelines, a plurality of connecting joints and a mud guard, each section of escape pipeline comprises at least two sections of escape pipe joints, each connecting joint comprises a bottom base and a top base, the top face of each bottom base and the bottom face of each top base are each provided with at least two horizontally-penetrating open grooves, and the bottom face of each open groove is provided with at least two horizontally-penetrating open grooves. The circle where the cross section of each open groove is located is the circle where the cross section of the escape pipeline is located, the middle section of each open groove is expanded to form an emergency oxygen bottle containing space, the bottom base and the top base are folded to form a whole, the connecting joints are arranged at intervals in the length direction of the tunnel, and the escape pipe joints are arranged between the adjacent connecting joints. The mudguard is placed in front of the inlet end of the escape pipeline and provided with an interval space. The device is simple in structure and convenient to install, can provide fresh oxygen for emergency escape personnel, prevents mud-water mixture from directly impacting an escape pipeline, and ensures the safety of the escape personnel in emergency.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction, and in particular to an emergency escape device for tunnel construction. Background Technology

[0002] During tunnel construction, collapses can occur due to various unforeseen circumstances. Therefore, escape and refuge devices need to be installed as tunnel construction progresses. Currently, the most commonly used escape and refuge device is the escape pipeline. This type of escape pipeline consists of multiple pipe sections connected by flanges to form a whole, and it gradually becomes longer as tunnel construction progresses. This type of escape pipeline has the following drawbacks:

[0003] 1. In order to keep the escape tunnels clear, emergency supplies such as oxygen cylinders cannot be placed inside the tunnels. However, in an emergency, staff usually do not have time to retrieve these emergency supplies, and there is a lack of fresh oxygen supply while crawling inside the escape tunnels.

[0004] 2. The entrance to the escape tunnel is directly exposed at the excavation face, and the mud and water mixture generated by the accident enters the escape tunnel at high speed through the entrance.

[0005] Therefore, how to ensure the escape tunnel remains unobstructed while supplying fresh oxygen to the tunnel and preventing the high-speed impact of mud and water mixtures on people escaping inside is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing an emergency escape device for tunnel construction. This device has a simple structure, is easy to install, can provide fresh oxygen to personnel escaping in an emergency, and prevents mud and water mixtures from directly impacting the escape pipe, thus ensuring the safety of personnel escaping in an emergency.

[0007] The technical solution of this utility model is: an emergency escape device for tunnel construction, comprising at least two escape pipes, several connecting nodes, and a mudguard. Each escape pipe includes at least two escape pipe sections. The connecting nodes include a bottom base and a top base. The top surface of the bottom base and the bottom surface of the top base are both planes. At least two horizontally penetrating openings are respectively provided on the top surface of the bottom base and the bottom surface of the top base. The number of openings is the same as the number of escape pipes, and the cross-sectional circle of the openings is the same as the cross-sectional circle of the escape pipes. The middle section of each opening is enlarged to form an emergency oxygen cylinder placement space. The bottom base and the top base are joined together to form a whole, so that the corresponding openings are joined together to form an installation hole. The connecting nodes are arranged at intervals along the length of the tunnel. The escape pipe sections of each escape pipe are set between adjacent connecting nodes and assembled in the corresponding installation holes. The mudguard is placed in front of the entrance end of the escape pipe and has a space between them.

[0008] The entrances of at least two escape tunnels are staggered along their length.

[0009] The different insertion depths of the escape tube sections on both sides of each connection node cause the entrance end of the escape tube to be misaligned.

[0010] The bottom base has four holes on the top surface and four pins on the bottom surface. The top base is inserted into the corresponding holes of the bottom base through the pins, and the two bases are joined together to form a whole.

[0011] Both the bottom base and the top base are made of concrete.

[0012] The expanded diameter sections in the middle of adjacent opening slots are connected.

[0013] The above technical solution has the following beneficial effects:

[0014] 1. The emergency escape device for tunnel construction includes at least two escape pipe sections, several connecting nodes, and mudguards. The escape pipes allow workers to enter and escape in emergencies, while the mudguards prevent mud and water mixtures from directly impacting the escape pipes, ensuring the safety of those escaping. Each escape pipe section includes at least two escape tube segments, which are connected to form the escape pipe. This facilitates on-site construction and allows for extension of the escape pipe length according to construction progress, meeting actual on-site needs. The connecting nodes include a bottom base and a top base. The top surface of the bottom base and the bottom surface of the top base are both flat. At least two horizontally penetrating slots are provided on the top surface of the bottom base and the bottom surface of the top base, respectively. The number of slots is the same as the number of escape pipes, and the cross-sectional circle of the slots is the same as the cross-sectional circle of the escape pipes. That is, the escape tube segments can be supported in the slots of the bottom base and are clamped and positioned by the slots of the top base. The middle section of each opening slot is widened to form an emergency oxygen cylinder storage space for placing oxygen cylinders or emergency light sources and other emergency supplies. The bottom base and top base are joined together to form a whole, causing the corresponding opening slots to close and form installation holes. Adjacent escape pipe sections are connected through the installation holes to form a closed escape pipeline. The aforementioned connection nodes are arranged at intervals along the length of the tunnel, and the connection nodes are arranged at intervals as the tunnel construction progresses. The escape pipe sections of each escape pipeline are set between adjacent connection nodes and assembled in the corresponding installation holes. At least two escape pipe sections and the installation holes of the connection nodes connecting adjacent escape pipe sections are connected to form a closed pipeline space. Furthermore, adjacent escape pipe sections are connected by the widened section of the installation hole. After entering the escape pipeline, escape personnel can retrieve the required emergency oxygen cylinder and inhale oxygen from the emergency oxygen cylinder storage space after skipping one escape pipe section, which can meet the oxygen needs of escape personnel. The mudguard is placed in front of the entrance end of the escape pipe and has a gap. While allowing people to enter the escape pipe through the entrance end, it can prevent mud and water mixture from directly impacting the escape pipe through the entrance end and causing injury to the people.

[0015] 2. The entrance ends of at least two escape pipe sections are staggered along their length to prevent the escape pipes from being blocked all at once. The insertion depth of the escape pipe sections on both sides of each connection node is different, causing the entrance ends of the escape pipes to be staggered. This layout structure is simple and easy to operate.

[0016] 3. The bottom base has four holes at the top corners and the top base has four pins at the bottom corners. The top base is inserted into the corresponding holes of the bottom base through the pins, and the two bases are joined together to form a whole. This connection structure is simple and reliable, and can ensure the stability and support of the escape pipe formed by the connection nodes.

[0017] 4. The expansion section in the middle of the adjacent opening slots is connected, so that the two adjacent escape pipes are connected at the connection point. This allows escape personnel to take more emergency supplies at the node and transfer to the adjacent escape pipe via the expansion section, thus meeting the needs on site.

[0018] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details. Attached Figure Description

[0019] Figure 1 This is a layout diagram of the present invention (top base omitted);

[0020] Figure 2 This is a schematic diagram of the connection node of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the bottom base of this utility model;

[0022] Figure 4 This is an assembly diagram of the present invention.

[0023] In the attached diagram, 1 is the escape pipe, 2 is the connection node, 3 is the mudguard, 4 is the escape pipe section, 5 is the bottom base, 51 is the insertion hole, 6 is the top base, 61 is the pin, 7 is the opening groove, 8 is the emergency oxygen cylinder placement space, and 9 is the mounting hole. Detailed Implementation

[0024] See Figures 1 to 4This is a specific embodiment of an emergency escape device for tunnel construction. The emergency escape device for tunnel construction includes at least two escape pipes 1, several connecting nodes 2, and mudguards 3. In this embodiment, the number of escape pipes is two and the number of connecting nodes is two, as an example. Each escape pipe 1 includes three escape pipe sections 4. The connecting nodes 2 include a bottom base 5 and a top base 6, both of which are formed by concrete casting. The top surface of the bottom base 5 and the bottom surface of the top base 6 are both flat. The top surface of the bottom base 5 has four holes 51 at its four corners, and the bottom surface of the top base 6 has four pins 61 at its four corners. The top surface of the bottom base 5 and the bottom surface of the top base 6 are respectively provided with two horizontal through-hole slots 7. The number of slots 7 is the same as the number of escape pipes 1, and the circle of the cross-section of the slot 7 is the circle of the cross-section of the escape pipe 1. Obviously, the cross-section of the slots on the same plane is a semicircle, and the two slots are arranged in parallel. The middle section of each opening slot 7 is widened to form an emergency oxygen cylinder placement space 8. In this embodiment, the emergency oxygen cylinder placement spaces of two opening slots on the same plane are connected. The top base is inserted into the corresponding insertion hole 51 of the bottom base through a pin 61, and the two bases are closed to form a whole, so that the corresponding opening slots 7 are closed to form a mounting hole 9. The connecting nodes 2 are arranged at intervals along the length of the tunnel. The escape pipe sections 4 of each escape pipe 1 are set between adjacent connecting nodes 2 and are assembled in the corresponding mounting holes 9. In order to avoid the inlet ends of the two escape pipe sections being blocked at one time, the inlet ends of the two escape pipe sections 1 are staggered along the length. Specifically, the staggered inlet ends of the escape pipe 1 are achieved by controlling the different insertion depths of the escape pipe sections at the inlet ends. The mudguard 3 is placed in front of the inlet end of the escape pipe 1 and has a space between it.

[0025] The installation method of this utility model is as follows:

[0026] The bottom bases are hoisted and arranged at intervals along the tunnel length. Then, each escape tube section is hoisted, with one end supported in the corresponding opening slot of the bottom base. The support length of the escape tube section at the entrance end is controlled to be different. After placing emergency oxygen cylinders, breathing masks, and other emergency supplies in the emergency oxygen cylinder placement spaces of each bottom base, the top bases are hoisted and joined to the corresponding bottom bases, securing each escape tube section. This completes the installation of the escape device.

Claims

1. An emergency escape device for tunnel construction, characterized in that: It includes at least two escape pipe sections (1), several connecting nodes (2), and mudguards (3). Each escape tunnel (1) includes at least two escape tube sections (4). The connecting node (2) includes a bottom base (5) and a top base (6). The top surface of the bottom base (5) and the bottom surface of the top base (6) are both planes. The top surface of the bottom base (5) and the bottom surface of the top base (6) are respectively provided with at least two horizontal through-holes (7). The number of through-holes (7) is the same as the number of escape pipes (1), and the cross-sectional circle of the through-holes (7) is the same as the cross-sectional circle of the escape pipes (1). The middle section of each through-hole (7) is enlarged to form an emergency oxygen cylinder placement space (8). The bottom base (5) and the top base (6) are joined together to form a whole, so that the corresponding through-holes (7) are joined together to form a mounting hole (9). Each of the connecting nodes (2) is arranged at intervals along the length of the tunnel, and the escape pipe sections (4) of each escape pipe (1) are set between adjacent connecting nodes (2) and assembled in the corresponding mounting holes (9). The mudguard (3) is placed in front of the entrance end of the escape pipe (1) and has a gap.

2. The tunnel construction emergency escape device according to claim 1, characterized in that: The entrance ends of at least two escape tunnels (1) are staggered along their length.

3. The tunnel construction emergency escape device according to claim 2, characterized in that: The different insertion depths of the escape tube sections (4) on both sides of each connecting node (2) cause the entrance end of the escape pipe (1) to be misaligned.

4. The tunnel construction emergency escape device according to claim 1, characterized in that: The bottom base (5) has four holes (51) at the top corners, and the top base (6) has four pins (61) at the bottom corners. The top base is inserted into the corresponding holes (51) of the bottom base through the pins (61) to form a whole.

5. The tunnel construction emergency escape device according to any one of claims 1-4, characterized in that: Both the bottom base (5) and the top base (6) are formed from concrete.

6. The tunnel construction emergency escape device according to claim 1, characterized in that: The expansion section in the middle of the adjacent opening groove (7) is connected.

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