Air pipe supporting and protecting device

Abstract

The utility model provides an air pipe supporting and protecting device which comprises a bracket, the tops of the two ends of the bracket abut against the top of a tunnel, stand columns are evenly arranged at the bottom of one end of the bracket, the bottom ends of the stand columns are fixedly arranged at the top of an inverted arch of the tunnel, and a supporting rod is arranged at the bottom of the other end of the bracket. One end of the supporting rod is fixedly connected with a steel arch in a tunnel, a protection plate is fixedly arranged on the top of the bracket, and the air pipe is arranged on the top of the protection plate. According to the utility model, the stand columns and the supporting rods support the two ends of the bracket, the bracket supports the air pipe, and a space is reserved below the bracket for operation equipment, so that the operation equipment is prevented from colliding with the air pipe or rolling the air pipe; on one hand, the protective plate at the top of the bracket can block the air pipe to reduce the damage of shock waves and flying stones to the air pipe, and on the other hand, scratch between operation equipment and the air pipe can be avoided.

Description

Technical Field

[0001] This utility model belongs to the field of tunnel construction technology, and specifically relates to a duct support and protection device. Background Technology

[0002] In the construction of medium and long tunnels, mechanical ventilation must be implemented after the tunnel has been excavated to ensure the occupational health of workers. Ventilation inside the tunnel typically involves using fans and ductwork to deliver air to the tunnel face.

[0003] Heavy equipment such as drilling rigs and excavators are often operating near the working face, and the ventilation ducts may be broken due to collisions, crushing, or flying debris; in addition, when blasting is used for excavation, shock waves and flying rocks may tear the ventilation ducts.

[0004] Therefore, it is necessary to design a duct support and protection device that can prevent equipment from colliding with the duct and reduce damage to the duct from shock waves and flying stones to solve the current technical problems. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, this utility model provides a duct support and protection device that can prevent equipment from colliding with the duct and reduce the damage to the duct caused by shock waves and flying stones.

[0006] The technical solution of this utility model is as follows: a duct support and protection device, including a bracket, the tops of both ends of the bracket abutting against the top of the tunnel, one end of the bracket having columns evenly arranged at the bottom, the bottom ends of the columns being fixedly set at the top of the tunnel invert, the other end of the bracket having a support rod, one end of the support rod being fixedly connected to the steel arch frame inside the tunnel, the top of the bracket having a protective plate fixedly set, and the duct being set on the top of the protective plate.

[0007] Furthermore, the duct is fixed to the top of the protective plate by a duct clamp, the duct clamp having a U-shaped structure, and both ends of the duct clamp being fixedly connected to the protective plate.

[0008] Furthermore, a padding layer is fixedly provided on the inner side of the duct clamp, and the padding layer is a U-shaped structure made of rubber or polyurethane.

[0009] Furthermore, a telescopic air supply assembly is provided at the end of the air duct. The telescopic air supply assembly has a telescopic corrugated pipe fixedly connected to the end of the air duct. An electric actuator for driving the telescopic corrugated pipe to extend and retract is fixedly provided at the top of the air duct clamp at the end of the air duct.

[0010] Furthermore, supports are symmetrically arranged on both sides of the telescopic corrugated pipe opposite to the end of the air duct. A guide rod is fixedly arranged on the support near the side of the air duct. Slides corresponding to the guide rods are fixedly arranged on both sides of the air duct clamp at the end of the air duct. The guide rod is slidably arranged inside the slide.

[0011] Furthermore, the bracket and the column form an angle of 45 to 90 degrees.

[0012] Furthermore, the column corresponds to the steel arch frame inside the tunnel, and a tie rod is fixedly connected between one side of the column and the corresponding steel arch frame.

[0013] The beneficial effects of this utility model are:

[0014] (1) In this utility model, the column and the bracket provide support for both ends of the bracket, the bracket provides support for the air duct, and the space below the bracket is reserved for the working equipment to avoid the working equipment from colliding with or crushing the air duct.

[0015] (2) The protective plate on the top of the bracket can, on the one hand, form a barrier for the air duct and reduce the damage to the air duct caused by shock waves and flying stones, and on the other hand, it can prevent the working equipment from rubbing against the air duct. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the installation structure of the duct support and protection device in this utility model.

[0017] Figure 2 This is a structural schematic diagram of one embodiment of the duct support and protection device of this utility model.

[0018] Figure 3 This is a schematic diagram of another embodiment of the duct support and protection device of this utility model. Detailed Implementation

[0019] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are not intended to limit the present invention or its application or use in any way. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete, and to fully express the scope of the present invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0020] The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] like Figure 1 and 2 As shown, the duct support and protection device includes a bracket 3. The tops of both ends of the bracket 3 abut against the top of the tunnel. Columns 2 are evenly arranged at the bottom of one end of the bracket 3, and the bottom ends of the columns 2 are fixedly installed at the top of the tunnel invert. A support rod 5 is provided at the bottom of the other end of the bracket 3, and one end of the support rod 5 is fixedly connected to the steel arch frame inside the tunnel. A protective plate 4 is fixedly installed on the top of the bracket 3, and the duct 1 is installed on the top of the protective plate 4. In this embodiment, the columns 2 and the support rod 5 provide support for both ends of the bracket 3, and the bracket 3 provides support for the duct 1. The space below the bracket 3 is reserved for operating equipment to prevent the operating equipment from colliding with or crushing the duct 1. The protective plate 4 on the top of the bracket 3 can, on the one hand, form a barrier for the duct 1 to reduce damage to the duct from shock waves and flying stones, and on the other hand, prevent the operating equipment from scraping against the duct 1.

[0022] In some embodiments, in order to improve the stability of the duct 1, the duct 1 is fixed to the top of the protective plate 4 by a duct clamp 7. The duct clamp 7 has a U-shaped structure, and both ends of the duct clamp 7 are fixedly connected to the protective plate 4. The duct 1 is fixedly connected to the protective plate 4 by the duct clamp 7, which improves the stability of the connection between the duct 1 and the protective plate 4, reduces the shaking of the duct 1 during use, and thus reduces the wear of the duct 1 caused by shaking. Specifically, both ends of the duct clamp 7 are fixed to the top of the protective plate 4 by welding or bolt assembly.

[0023] In some embodiments, a padding layer 71 is fixedly provided on the inner side of the duct clamp 7. The padding layer 71 can play a role in shock absorption and reducing wear. The padding layer 71 is a U-shaped structure made of rubber or polyurethane.

[0024] In some embodiments, a telescopic air supply assembly 8 is provided at the end of the duct 1. The telescopic air supply assembly 8 has a telescopic corrugated pipe 81 fixedly connected to the end of the duct 1. An electric actuator 85 for driving the telescopic corrugated pipe 81 to extend and retract is fixedly provided at the top of the duct clamp 7 at the end of the duct 1. When the electric actuator 85 drives the telescopic corrugated pipe 81 to extend, the end of the telescopic corrugated pipe 81 extends outward from the top of the protective plate 4, discharging the airflow inside the duct 1 to the outer working face. Before the blast, the electric actuator 85 drives the telescopic corrugated pipe 81 to retract to the top of the protective plate 4. By utilizing the blocking effect of the protective plate 4, the damage to the duct from shock waves and flying stones can be reduced.

[0025] In some embodiments, supports 83 are symmetrically arranged on both sides of the telescopic corrugated pipe 81 away from the end of the air duct 1. A guide rod 82 is fixedly arranged on the side of the support 83 near the air duct 1. Slide seats 84 corresponding to the guide rod 82 are fixedly arranged on both sides of the air duct clamp 7 at the end of the air duct 1. The guide rod 82 is slidably arranged inside the slide seat 84. The end of the telescopic corrugated pipe 81 is slidably connected to the slide seat 84 through the guide rod 82, which improves the stability of the telescopic corrugated pipe 81 when it is driven by the electric push rod 85.

[0026] In some embodiments, the bracket 3 and the column 2 form an angle of 45 to 90°; preferably, the bracket 3 and the column 2 form an angle of 60°. The inclined bracket 3 can increase the maximum distance between the bracket 3 and the tunnel arch, which is beneficial for the entry of the working equipment.

[0027] In some embodiments, the column 2 corresponds to the steel arch frame inside the tunnel, and a tie rod 6 is fixedly connected between one side of the column 2 and the corresponding steel arch frame; the bottom end of the column 2 is fixed to the top of the invert arch by expansion bolts or welding, and the two ends of the tie rod 6 are welded and fixed between the column 2 and the steel arch frame, respectively, thereby improving the stability of the column 2.

[0028] The various embodiments of this utility model have now been described in detail. To avoid obscuring the concept of this utility model, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0029] The embodiments described above only illustrate some implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A duct support protection device, characterized in that: The system includes a bracket, the tops of both ends of which abut against the top of the tunnel. One end of the bracket has evenly spaced columns at its bottom, the bottom of which is fixedly mounted on the top of the tunnel invert. The other end of the bracket has a support rod at its bottom, one end of which is fixedly connected to the steel arch frame inside the tunnel. A protective plate is fixedly mounted on the top of the bracket, and the ventilation duct is mounted on top of the protective plate.

2. The duct support protection device according to claim 1, characterized in that: The duct is fixed to the top of the protective plate by duct clamps. The duct clamps have a U-shaped structure, and both ends of the duct clamps are fixedly connected to the protective plate.

3. The duct support protection device according to claim 2, characterized in that: A padding layer is fixedly installed on the inner side of the duct clamp. The padding layer is a U-shaped structure made of rubber or polyurethane.

4. The duct support protection device according to claim 2, characterized in that: The end of the duct is provided with a telescopic air supply assembly, which has a telescopic corrugated pipe fixedly connected to the end of the duct. The top of the duct clamp at the end of the duct is fixedly provided with an electric actuator for driving the telescopic corrugated pipe to extend and retract.

5. The duct support protection device according to claim 4, characterized in that: The telescopic corrugated pipe has symmetrical supports on both sides opposite to the end of the air duct. A guide rod is fixedly installed on the support near the side of the air duct. Slides corresponding to the guide rods are fixedly installed on both sides of the air duct clamp at the end of the air duct. The guide rod is slidably installed inside the slide.

6. The duct support protection device according to claim 1, characterized in that: The bracket and the column form an angle of 45 to 90 degrees.

7. The duct support protection device according to claim 1, characterized in that: The columns correspond to the steel arch frames inside the tunnel, and a tie rod is fixedly connected to one side of the column and the corresponding steel arch frame.

Images