Vertical shaft ventilation device and vertical shaft construction system

Abstract

The utility model relates to the technical field of vertical shaft construction, in particular to a vertical shaft ventilation device and a vertical shaft construction system.The vertical shaft ventilation device comprises a draught fan and an air pipe assembly, and the draught fan is arranged on the ground of the edge of a vertical shaft; the air pipe assembly comprises an air storage barrel, an elbow joint and a ventilation pipe, the air storage barrel is detachably connected between the draught fan and the elbow joint, a containing cavity is formed in the air storage barrel, and the containing cavity communicates with the draught fan and the elbow joint; the ventilation pipe is sleeved and stacked in the containing cavity, the first end of the ventilation pipe is communicated with the draught fan, and the second end of the ventilation pipe slidably penetrates through the elbow connector and is communicated with a ventilation opening of the heading machine. The fan and the air pipe assembly are arranged on the ground at the edge of the vertical shaft, so that the risks of injury and suffocation of operators are greatly reduced, the operation safety is improved, the air storage barrel is convenient to replace, the operation process is simple, and the extension operation efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of shaft construction technology, and in particular to a shaft ventilation device and shaft construction system. Background Technology

[0002] In the construction of vertical shafts, in order to ensure air circulation in the construction environment inside the shaft and allow construction workers to breathe normally, a ventilation system from the construction surface to the ground is an essential condition. As the depth of the vertical shaft increases, the ventilation ducts also extend accordingly.

[0003] Traditionally, in vertical shaft installation, hoisting supports at various heights are installed first, starting with the lowest support. Then, the ductwork is connected upwards from the bottom, with the hoisting supports installed sequentially before the ductwork. Further, existing technology allows for ductwork installation by adjusting the height of the hoisting supports. Specifically, the ductwork is placed on the hoisting supports, pulleys are installed at the top of the supports, and steel cables connect to a winch placed on the ground. The winch is used to adjust the height of the hoisting supports, thereby installing the ductwork at various heights.

[0004] Therefore, it is necessary to provide a new shaft ventilation device and shaft construction system to solve the above-mentioned technical problems. Utility Model Content

[0005] The main purpose of this utility model is to provide a vertical shaft ventilation device and a vertical shaft construction system, which aims to solve the problems of complex operation and low safety of existing vertical shaft ventilation devices.

[0006] To achieve the above objectives, the present invention proposes a vertical shaft ventilation device, comprising a fan and a duct assembly. The fan is installed on the ground at the edge of the vertical shaft. The duct assembly includes an air storage cylinder, a bend joint, and a ventilation pipe. The air storage cylinder is detachably connected between the fan and the bend joint, and a cavity is formed inside the air storage cylinder. The cavity is connected to both the fan and the bend joint. The ventilation pipe is stacked within the cavity, with its first end connected to the fan and its second end sliding through the bend joint and connected to the ventilation port of the tunneling machine.

[0007] Optionally, the ventilation duct includes multiple pipe sections connected in sequence, with adjacent pipe sections connected by a zipper, and the latter pipe section is slidably fitted inside the former pipe section.

[0008] Optionally, the two ends of the bend joint are provided with a first interface and a second interface, the first interface is arranged in a vertical direction and is connected to the end of the air storage duct away from the fan; the second interface is arranged in a horizontal direction and is positioned directly opposite the opening of the vertical shaft.

[0009] Optionally, the shaft ventilation device further includes a suspension mechanism, which includes a winch, a suspension sheave, and a wire rope. The winch is located on the ground at the edge of the shaft; the suspension sheave is located above the shaft; the wire rope is slidably mounted on the suspension sheave, and one end of the wire rope is connected to the output shaft of the winch, and the other end is connected to the second end of the ventilation pipe.

[0010] Optionally, the wire rope is provided with a plurality of spaced spring hooks; the outer periphery of the pipe section is provided with hooks, and each pipe section installed in the shaft is connected to the spring hook at the corresponding position through the hooks.

[0011] Optionally, there are two suspension mechanisms, which cooperate to suspend the ventilation pipe; the pipe section is provided with two or more hooks, each hook is evenly arranged in two rows along the length of the pipe section and is located on both sides of the pipe section, and the two sides of the pipe section are respectively connected to the steel wire ropes of the two suspension mechanisms through the hooks.

[0012] In addition, this utility model also provides a shaft construction system, characterized in that the shaft construction system includes a working platform, a tunneling machine, a lifting device, and a shaft ventilation device as described above. The working platform is slidably disposed within the shaft in the vertical direction; the tunneling machine is disposed on the working platform, and the ventilation port of the tunneling machine is connected to the ventilation pipe of the shaft ventilation device through a ventilation rigid pipe; the lifting device is disposed within the shaft, and the output end of the lifting device is connected to the working platform, and the lifting device can drive the working platform to move up and down within the shaft.

[0013] In this utility model, the fan and duct assembly are placed on the ground at the edge of the shaft, enabling the extension of the ventilation duct from the ground. This significantly reduces the risk of injury and suffocation to workers and improves operational safety. Furthermore, the entire process eliminates the need to connect the ventilation ducts at various heights. After excavating a certain distance and confirming that no personnel are working underground, the fan is turned off, and the ventilation ducts stacked inside the air storage silo are pulled out as the tunneling machine descends, thus completing the extension of the ventilation ducts. In addition, once the ventilation ducts inside the air storage silo are extended, the operators only need to replace the air storage silo to carry out the extension work. The operation is simple and effectively improves the efficiency of the extension operation. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the vertical shaft ventilation device in an embodiment of this utility model;

[0016] Figure 2 for Figure 1 A partial structural diagram.

[0017] Explanation of icon numbers:

[0018] 1. Fan; 2. Duct assembly; 2.1. Air storage duct; 2.2. Pipe bend; 2.2.1. First interface; 2.2.2. Second interface; 2.3. Ventilation pipe; 2.3.1. Pipe section; 2.3.2. Zipper; 2.3.3. Hook; 3. Suspension mechanism; 3.1. Suspension sheave; 3.2. Wire rope; 3.2.1. Spring hook; 4. Shaft.

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0022] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0025] This utility model proposes a vertical shaft ventilation device and a vertical shaft construction system, aiming to solve the problems of complex operation and low safety of existing vertical shaft ventilation devices.

[0026] like Figure 1As shown, a vertical shaft ventilation device includes a fan 1 and a duct assembly 2. The fan 1 is located on the ground at the edge of the vertical shaft 4. The duct assembly 2 includes an air storage cylinder 2.1, a bend joint 2.2, and a ventilation pipe 2.3. The air storage cylinder 2.1 is detachably connected between the fan 1 and the bend joint 2.2, and a cavity is formed inside the air storage cylinder 2.1. The cavity is connected to the fan 1 and the bend joint 2.2 respectively. The ventilation pipe 2.3 is stacked inside the cavity, and the first end of the ventilation pipe 2.3 is connected to the fan 1, and the second end slides through the bend joint 2.2 and is connected to the ventilation port of the tunneling machine. By placing the blower 1 and the duct assembly 2 on the ground at the edge of the shaft 4, the ventilation duct 2.3 can be extended from the ground, greatly reducing the risk of injury and suffocation to workers and improving operational safety. Furthermore, the entire process eliminates the need to connect the ventilation duct 2.3 at various heights. After excavating a certain distance and confirming that no personnel are working underground, the blower 1 is shut down, and the ventilation duct 2.3 stacked inside the air storage silo 2.1 is pulled out as the tunneling machine descends, thus completing the extension of the ventilation duct 2.3. In addition, once the ventilation duct 2.3 inside the air storage silo 2.1 is extended, the operators only need to replace the air storage silo 2.1 to carry out the extension work, making the operation simple and effectively improving the efficiency of the extension operation.

[0027] The ventilation pipe 2.3 comprises multiple sequentially connected pipe sections 2.3.1. Adjacent pipe sections 2.3.1 are connected by a zipper 2.3.2, and the subsequent pipe section 2.3.1 is slidably fitted inside the preceding pipe section 2.3.1. As the tunneling machine descends, it pulls the second end of the ventilation pipe 2.3 down, thereby pulling out the stacked pipe sections 2.3.1 fitted inside the air storage duct 2.1 to complete the extension operation of the ventilation pipe 2.3. The operation is simple and efficient.

[0028] Specifically, the elbow joint 2.2 has a first interface 2.2.1 and a second interface 2.2.2 at both ends. The first interface 2.2.1 is arranged vertically and is connected to the end of the air storage duct 2.1 away from the fan 1. The second interface 2.2.2 is arranged horizontally and is positioned directly opposite the opening of the shaft 4. The elbow joint 2.2 can guide the ventilation pipe 2.3 as it extends and can effectively prevent the ventilation pipe 2.3 from rubbing against the edge of the shaft 4 and causing damage.

[0029] In this embodiment, the shaft ventilation device further includes a suspension mechanism 3, which includes a winch, a suspension sheave 3.1, and a wire rope 3.2. The winch is located on the ground at the edge of the shaft 4; the suspension sheave 3.1 is located above the shaft 4; the wire rope 3.2 is slidably mounted on the suspension sheave 3.1, with one end connected to the output shaft of the winch and the other end connected to the second end of the ventilation pipe 2.3. When the ventilation pipe 2.3 extends, the winch simultaneously releases the wire rope 3.2, which pulls the second end of the ventilation pipe 2.3 down slowly to ensure the stability of the ventilation pipe 2.3 during extension and to avoid contact with the shaft wall of the shaft 4, thus preventing damage to the ventilation pipe 2.3.

[0030] Furthermore, such as Figure 2 As shown, the wire rope 3.2 is equipped with multiple spaced spring hooks 3.2.1; the outer periphery of the pipe section 2.3.1 is equipped with hooks 2.3.3. Each pipe section 2.3.1 located in the shaft 4 is connected to the corresponding spring hook 3.2.1 via hooks 2.3.3. Each pipe section 2.3.1 in the shaft 4 is hung on the wire rope 3.2 via hooks 2.3.3 for fixation. The spring hooks 3.2.1 are elastic and can also act as a buffer when the ventilation pipe 2.3 extends and descends, thereby further improving operational safety. When extending the ventilation pipe 2.3 in the shaft 4 through the pipe section 2.3.1 in the air storage duct 2.1, the operator only needs to connect the hooks 2.3.3 and spring hooks 3.2.1 on the ground.

[0031] Furthermore, there are two suspension mechanisms 3, which work together to suspend the ventilation pipe 2.3. Each pipe section 2.3.1 is equipped with two or more hooks 2.3.3, arranged evenly in two rows along the length of the pipe section 2.3.1, located on both sides of the pipe section 2.3.1. Both sides of the pipe section 2.3.1 are connected to the steel wire ropes 3.2 of the two suspension mechanisms 3 via hooks 2.3.3. The fact that each pipe section 2.3.1 is connected to the steel wire ropes 3.2 of the two suspension mechanisms 3 via hooks 2.3.3 on both sides further ensures the stability of the extension operation and improves operational safety.

[0032] This embodiment also provides a shaft construction system, which includes a working platform, a tunneling machine, a lifting device, and a shaft ventilation device as described above. The working platform is slidably installed in the shaft 4 along the vertical direction. The tunneling machine is installed on the working platform, and the ventilation port of the tunneling machine is connected to the ventilation pipe 2.3 of the shaft ventilation device through a ventilation rigid pipe. The lifting device is installed in the shaft 4, and the output end of the lifting device is connected to the working platform. The lifting device can drive the working platform to move up and down in the shaft 4. As the tunneling depth increases, the working platform carrying the tunneling machine also descends synchronously under the drive of the lifting device. At the same time, it pulls out the pipe section 2.3.1 in the air storage cylinder 2.1 through the ventilation pipe 2.3 in the shaft 4, thereby extending the ventilation pipe 2.3.

[0033] Since the shaft construction system includes the shaft ventilation device as described above, the shaft construction system possesses all the beneficial effects of the shaft ventilation device, which will not be elaborated here.

[0034] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A vertical shaft ventilation device, characterized in that, The system includes a fan (1) and a duct assembly (2). The fan (1) is located on the ground at the edge of the shaft (4). The duct assembly (2) includes an air storage cylinder (2.1), a bend joint (2.2), and a ventilation pipe (2.3). The air storage cylinder (2.1) is detachably connected between the fan (1) and the bend joint (2.2), and a cavity is formed inside the air storage cylinder (2.1). The cavity is connected to the fan (1) and the bend joint (2.2) respectively. The ventilation pipe (2.3) is stacked inside the cavity, and the first end of the ventilation pipe (2.3) is connected to the fan (1), and the second end slides through the bend joint (2.2) and is connected to the ventilation port of the tunneling machine.

2. The vertical shaft ventilation device as described in claim 1, characterized in that, The ventilation duct (2.3) includes a plurality of pipe sections (2.3.1) connected in sequence. Two adjacent pipe sections (2.3.1) are connected by a zipper (2.3.2), and the latter pipe section (2.3.1) is slidably fitted inside the former pipe section (2.3.1).

3. The vertical shaft ventilation device as described in claim 2, characterized in that, The elbow joint (2.2) has a first interface (2.2.1) and a second interface (2.2.2) at its two ends. The first interface (2.2.1) is arranged vertically and is connected to the end of the air storage duct (2.1) away from the fan (1). The second interface (2.2.2) is arranged horizontally and is directly opposite the opening of the vertical shaft (4).

4. The vertical shaft ventilation device as described in claim 3, characterized in that, The vertical shaft ventilation device also includes a suspension mechanism (3), which includes a winch, a suspension sheave (3.1), and a wire rope (3.2). The winch is located on the ground at the edge of the vertical shaft (4). The suspension sheave (3.1) is located above the vertical shaft (4). The wire rope (3.2) is slidably mounted on the suspension sheave (3.1). One end of the wire rope (3.2) is connected to the output shaft of the winch, and the other end is connected to the second end of the ventilation pipe (2.3).

5. The vertical shaft ventilation device as described in claim 4, characterized in that, The wire rope (3.2) is provided with a plurality of spaced spring hooks (3.2.1); the outer periphery of the pipe section (2.3.1) is provided with hooks (2.3.3), and each pipe section (2.3.1) in the vertical shaft (4) is connected to the spring hook (3.2.1) at the corresponding position through the hooks (2.3.3).

6. The vertical shaft ventilation device as described in claim 5, characterized in that, The number of suspension mechanisms (3) is two, and the two suspension mechanisms (3) cooperate to suspend the ventilation pipe (2.3); the pipe section (2.3.1) is provided with two or more hooks (2.3.3), each hook (2.3.3) is evenly arranged in two rows along the length direction of the pipe section (2.3.1) and is located on both sides of the pipe section (2.3.1). The two sides of the pipe section (2.3.1) are respectively connected to the steel wire ropes (3.2) of the two suspension mechanisms (3) through the hooks (2.3.3).

7. A vertical shaft construction system, characterized in that, The shaft construction system includes a working platform, a tunneling machine, a lifting device, and a shaft ventilation device as described in any one of claims 1 to 6. The working platform is slidably disposed in the shaft (4) in the vertical direction. The tunneling machine is disposed on the working platform, and the ventilation port of the tunneling machine is connected to the ventilation pipe (2.3) of the shaft ventilation device through a ventilation rigid pipe. The lifting device is disposed in the shaft (4), and the output end of the lifting device is connected to the working platform. The lifting device can drive the working platform to move up and down in the shaft (4).

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