Ventilation pipe for tunnel construction

Abstract

The utility model discloses a ventilation pipe for tunnel construction, and relates to the technical field of ventilation pipes. The connecting mechanism is arranged between the two sets of ventilation pipelines, and the two sets of ventilation pipelines are fixedly connected through the connecting mechanism, so that the stability and convenience during installation are ensured; the multiple adjusting assemblies are arranged on the circumferential outer wall of the connecting mechanism and matched with the connecting mechanism, and the inner wall of the ventilation pipeline is fixed through the adjusting assemblies so as to ensure the stability of the pipeline; and the sealing rings are symmetrically arranged at the two ends of the connecting mechanism, and the connecting mechanism and the ventilation pipeline are connected in a sealed mode through the sealing rings, so that the sealing performance of the pipeline is guaranteed. The connecting mechanism is reasonable and reliable in structure, the ventilation pipeline can be quickly fixed, the mounting distance of the connecting mechanism is reasonably arranged according to the length of the ventilation pipeline, the stability and the bearing capacity of the whole structure are ensured, and the safety and the convenience of mounting are improved.

Description

Technical Field

[0001] This utility model relates to the field of ventilation pipe technology, specifically to a ventilation pipe for tunnel construction. Background Technology

[0002] Ensuring adequate ventilation is crucial for the health and safety of workers during tunnel construction. The ventilation system is a key factor in ensuring a safe working environment and improving work efficiency. Ventilation ducts, as a core component of the ventilation system, are primarily used to expel harmful gases from the tunnel and provide fresh air, thus ensuring the health and safety of workers. The requirements for ventilation ducts are particularly stringent in long-distance tunnel construction under complex geological conditions.

[0003] While existing ventilation ducts for tunnel construction employ bolt and nut threaded connections, making pipe connections more convenient and allowing for flexible adjustments based on changes in tunnel height to meet varying ventilation needs, the traditional fixed ductwork presents significant challenges in handling and installation due to its bulk and weight, reducing overall construction efficiency. Furthermore, the fixed duct structure struggles to adapt quickly to the complex and ever-changing tunnel environment, further limiting work efficiency.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a ventilation pipe for tunnel construction to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A ventilation pipe for tunnel construction includes a ventilation duct; a connecting mechanism disposed between two sets of ventilation ducts, which fixes the two sets of ventilation ducts to ensure stability and convenience during installation; an adjusting component disposed on the outer circumference of the connecting mechanism and cooperating with the connecting mechanism, which fixes the inner wall of the ventilation duct to ensure the stability of the duct; and sealing rings symmetrically disposed at both ends of the connecting mechanism, which seal the connecting mechanism and the ventilation duct to ensure the airtightness of the duct.

[0008] Furthermore, in order to adapt to different spatial layouts and improve the applicability and installation efficiency of the device, the ventilation duct is designed with a telescopic structure to enable the storage and assembly of the ventilation duct.

[0009] Furthermore, to achieve a tight and stable connection between the ventilation ducts, ensuring normal ventilation and the reliability of the overall structure, the connection mechanism includes a connecting ring positioned between the two sets of ventilation ducts. A driving component is mounted on the circumferential sidewall of the connecting ring. Two driven components are fitted to one side of the driving component and located on the inner circumferential wall of the ventilation duct, and these two driven components move in opposite directions. A ratchet component is fitted to the outer side of the driving component. The driving component includes a rotating shaft mounted on the circumferential sidewall of the connecting ring. One end of the rotating shaft has a bevel gear that engages with the driven component; the other end of the rotating shaft has a square head. The driven component includes an annular bevel gear mounted on the inner circumferential wall of the ventilation duct and engaging with the bevel gear. An annular slider is mounted on the outer circumferential wall of the annular bevel gear. One end of the annular bevel gear has several connecting blocks arranged in a circle. One end of each connecting block has an annular plate, and an adjustment assembly is positioned between the annular bevel gear and the annular plate.

[0010] Furthermore, to ensure a good fit with the inner wall of the ventilation duct and improve the connection effect and reliability of the connecting mechanism, the adjusting component includes a connecting rod disposed between the annular bevel gear and the annular plate. A circular hole is opened in the middle of one side of the connecting rod, and a limiting post is fitted on the inner circumference of the circular hole. A movable rod that cooperates with the connecting ring is symmetrically arranged on the outer circumference of the limiting post. A slot is opened on one side of the top of the connecting rod, and an arc-shaped plate is movably disposed inside the slot.

[0011] Furthermore, to ensure the stability and reliability of the ventilation duct connection, the sealing ring includes rubber ring bodies symmetrically arranged at both ends of the connection mechanism. Each rubber ring body contains several equidistantly arranged buffer blocks, with opposite sets of buffer blocks staggered. The rubber ring body is conical in shape, and its slope is the same as the slope of the unfolded ventilation duct. The rubber ring body also contains a chamber that mates with the buffer blocks.

[0012] Furthermore, in order to improve the stability, sealing and adaptability of the connection structure, an annular slide rail that cooperates with the annular slider is provided on the inner wall of the connecting ring; and an arc groove that cooperates with the arc plate is provided on the outer wall of the connecting ring.

[0013] Furthermore, in order to improve installation efficiency and enhance the stability and reliability of the connection, several snaps are provided on the outer circumference of the connecting ring.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. This utility model has a reasonable and reliable structure and is simple to operate. By setting up a connecting mechanism and buckles, workers can quickly fix the ventilation duct. The installation spacing of the connecting mechanism is reasonably arranged according to the length of the ventilation duct, ensuring the stability and load-bearing capacity of the overall structure, thereby improving work efficiency, reducing labor intensity, and enhancing the safety and convenience of installation. Simultaneously, the adjusting components, in conjunction with the connecting mechanism, can achieve a stable fixation of the ventilation duct, further enhancing connection reliability. Furthermore, the sealing ring ensures a reliable sealed connection between the connecting mechanism and the ventilation duct, effectively preventing gas leakage, guaranteeing the sealing performance and operational stability of the ventilation duct connection, and further improving safety and work efficiency.

[0016] 2. This utility model, by incorporating a connecting mechanism, allows workers to quickly and easily attach the mechanism to the ventilation duct during installation using clips. Based on the overall length of the ventilation duct, the intervals between each pair of connecting mechanisms can be pre-calculated and determined to ensure the stability and load-bearing capacity of the overall structure. These connecting mechanisms then enable the rapid connection of various sections of the ventilation duct. This not only improves work efficiency but also significantly reduces the labor intensity of workers and enhances the safety and convenience of the installation process.

[0017] 3. This utility model achieves stable fixation of ventilation ducts by setting an adjustment component and cooperating with the connecting mechanism. After the ventilation duct is snapped into place, the adjustment component is extended outward by rotation, making it fit tightly against the inner wall of the duct, thereby achieving effective support and fixation of the duct. This not only improves the stability of the installation but also enhances the reliability of the connection, thus possessing the advantages of simple operation, firm fixation, and strong adaptability.

[0018] 4. This utility model, by incorporating a sealing ring, ensures a reliable sealed connection between the connecting mechanism and the ventilation duct, effectively preventing gas leakage and guaranteeing the overall sealing performance and operational stability of the pipeline system. This not only improves the airtightness of the connection but also enhances safety and work efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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 these drawings without creative effort.

[0020] Figure 1 This is a structural schematic diagram of a ventilation pipe for tunnel construction according to an embodiment of the present utility model;

[0021] Figure 2 This is a partial structural schematic diagram of a ventilation pipe for tunnel construction according to an embodiment of the present utility model;

[0022] Figure 3 This is one of the structural schematic diagrams of a connecting mechanism in a ventilation pipe for tunnel construction according to an embodiment of the present utility model;

[0023] Figure 4 This is a second schematic diagram of the connecting mechanism in a ventilation pipe for tunnel construction according to an embodiment of the present utility model;

[0024] Figure 5 This is one of the partial cross-sectional views of a ventilation pipe for tunnel construction according to an embodiment of the present utility model;

[0025] Figure 6 This is a second partial sectional view of a ventilation pipe for tunnel construction according to an embodiment of the present utility model;

[0026] Figure 7 This is a third partial sectional view of a ventilation pipe for tunnel construction according to an embodiment of the present utility model;

[0027] Figure 8 This is a schematic diagram of the structure of an adjusting component in a ventilation pipe for tunnel construction according to an embodiment of the present utility model;

[0028] Figure 9 This is a partial cross-sectional view of a sealing ring in a ventilation pipe for tunnel construction according to an embodiment of the present utility model;

[0029] Figure 10 This is a schematic diagram of the contraction structure of a ventilation duct in a tunnel construction ventilation pipe according to an embodiment of the present utility model.

[0030] In the picture:

[0031] 1. Ventilation duct; 2. Connecting mechanism; 201. Connecting ring; 2011. Annular slide rail; 2012. Arc groove; 202. Driving component; 2021. Rotating shaft; 2022. Bevel gear; 2023. Square head; 203. Driven component; 2031. Annular bevel gear; 2032. Annular slider; 2033. Connecting block; 2034. Annular plate; 204. Ratchet component; 3. Adjusting assembly; 301. Connecting rod; 302. Round hole; 303. Limiting post; 304. Moving rod; 305. Slot; 306. Arc plate; 4. Sealing ring; 401. Rubber ring body; 402. Buffer block; 403. Chamber; 5. Buckle. Detailed Implementation

[0032] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0033] According to an embodiment of the present invention, a ventilation pipe for tunnel construction is provided.

[0034] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-10 As shown, a ventilation pipe for tunnel construction according to an embodiment of the present invention includes a ventilation pipe 1; a connecting mechanism 2, which is disposed between two sets of ventilation pipes 1 and fixes the two sets of ventilation pipes 1 to ensure stability and convenience during installation; an adjusting component 3, which is disposed on the outer circumference of the connecting mechanism 2 and cooperates with the connecting mechanism 2, and fixes the inner wall of the ventilation pipe 1 to ensure the stability of the pipe; and a sealing ring 4, which is symmetrically disposed at both ends of the connecting mechanism 2 and seals the connecting mechanism 2 and the ventilation pipe 1 to ensure the airtightness of the pipe.

[0035] By utilizing the aforementioned technical solution of this utility model, and through the installation of the connecting mechanism 2 and the buckle 5, workers can quickly fix the ventilation duct 1. The installation spacing of the connecting mechanism 2 is rationally arranged according to the length of the ventilation duct 1, ensuring the stability and load-bearing capacity of the overall structure. This improves work efficiency, reduces labor intensity, and enhances the safety and convenience of installation. Simultaneously, the adjusting component 3, in conjunction with the connecting mechanism 2, can achieve a stable fixation of the ventilation duct 1, further enhancing connection reliability. Furthermore, the sealing ring 4 ensures a reliable sealed connection between the connecting mechanism 2 and the ventilation duct 1, effectively preventing gas leakage and guaranteeing the sealing performance and operational stability of the ventilation duct 1 connection, further improving safety and work efficiency.

[0036] In one embodiment, the ventilation duct 1 is configured with a telescopic structure to facilitate its storage and assembly. This adapts to different spatial layouts, improving the applicability and installation efficiency of the device.

[0037] In one embodiment, the connecting mechanism 2 includes a connecting ring 201 disposed between two sets of ventilation ducts 1. A driving member 202 is disposed on the circumferential sidewall of the connecting ring 201. Two sets of driven members 203 are disposed on one side of the driving member 202 and on the inner circumferential wall of the ventilation duct 1, and the two sets of driven members 203 move in opposite directions. A ratchet member 204 is disposed on the outer side of the driving member 202. The driving member 202 includes a rotating shaft 2021 disposed on the circumferential sidewall of the connecting ring 201. One end of the rotating shaft 2021 is provided with a bevel gear 2022 that cooperates with the driven member 203. The other end of the rotating shaft 2021 is provided with a square head 2023. The driven member 203 includes an annular bevel gear 2031 disposed on the inner circumference of the ventilation duct 1 and cooperating with the bevel gear 2022. An annular slider 2032 is disposed on the outer circumference of the annular bevel gear 2031. A plurality of connecting blocks 2033 arranged in a circle are disposed at one end of the annular bevel gear 2031, and an annular plate 2034 is disposed at one end of the connecting block 2033. An adjusting component 3 is disposed between the annular bevel gear 2031 and the annular plate 2034. This not only achieves a tight and stable connection between the ventilation ducts 1, but also ensures the normal ventilation of the ventilation ducts 1 and the reliability of the overall structure.

[0038] The specific working principle of the connecting mechanism 2 is as follows: First, based on the overall length of the ventilation duct 1, the operator pre-calculates and determines the installation intervals for a pair of connecting mechanisms 2. Then, the connecting mechanism 2 is fixedly installed on one side of the tunnel roof using the clip 5, and the ends of the two ventilation duct sections 1 are aligned with the connecting ring 201 and inserted into the connecting ring 201. Next, a square wrench or other driving tool is used to turn the square head 2023, causing the rotating shaft 2021 to rotate. Through gear meshing, power is transmitted to the two sets of driven members 203, causing the two sets of ring bevel gears 2031 to rotate in opposite directions. As the ring bevel gears 2031 rotate, the adjusting component 3 on its outer circumference also extends outwards, and is fixed by the ratchet component 204, thus achieving a stable fixation of the two sets of ventilation ducts 1.

[0039] In one embodiment, the adjusting assembly 3 includes a connecting rod 301 disposed between the annular bevel gear 2031 and the annular plate 2034. A circular hole 302 is formed in the middle of one side of the connecting rod 301. A limiting post 303 is fitted onto the inner circumference of the circular hole 302. A movable rod 304, which cooperates with the connecting ring 201, is symmetrically arranged on the outer circumference of the limiting post 303. A slot 305 is formed on one side of the top of the connecting rod 301, and an arc-shaped plate 306 is movably disposed inside the slot 305. This ensures a good fit with the inner wall of the ventilation duct 1, thereby improving the connection effect and reliability of the connecting mechanism 2.

[0040] The specific working principle of the adjusting component 3 is as follows: When the annular bevel gear 2031 rotates, it drives the annular plate 2034 to rotate together. During this process, several sets of connecting rods 301 located between the annular bevel gear 2031 and the annular plate 2034 move accordingly. Each set of connecting rods 301 has a circular hole 302 in the middle, which fits onto the limiting post 303. The outer circumference of the limiting post 303 is symmetrically provided with movable rods 304. These movable rods cooperate with the connecting ring 201 to limit and guide, ensuring that the connecting rods 301 move along a predetermined trajectory. At the same time, an arc-shaped plate 306 is movably arranged in the slot 305 on one side of the top of the connecting rod 301. Since the connecting rod 301 is designed with a groove suitable for the inner wall of the pipe, it can automatically adjust its position and angle as the arc-shaped plate 306 moves to adapt to the shape of the inner circumference of the ventilation duct 1, thereby achieving stable fixation.

[0041] In one embodiment, the sealing ring 4 includes rubber ring bodies 401 symmetrically arranged at both ends of the connecting mechanism 2. Each rubber ring body 401 contains a plurality of equidistantly arranged buffer blocks 402, with opposite sets of buffer blocks 402 staggered. The rubber ring body 401 is conical, and its slope is the same as the slope of the ventilation duct 1 after unfolding. The rubber ring body 401 contains a chamber 403 that mates with the buffer blocks 402. This ensures the stability and reliability of the connection of the ventilation duct 1.

[0042] The specific working principle of the sealing ring 4 is as follows: When the connecting ring 201 is inserted into the end of the ventilation duct 1, the rubber ring body 401 is compressed, and the buffer block 402 inside it is displaced in the chamber 403. Since the two sets of buffer blocks 402 are staggered, this staggered arrangement allows the buffer blocks 402 to cooperate with each other when compressed, providing a uniform reaction force, thereby enhancing the sealing effect.

[0043] In one embodiment, the connecting ring 201 has an annular slide rail 2011 on its inner circumference that mates with the annular slider 2032; and an arcuate groove 2012 on its outer circumference that mates with the arcuate plate 306. This improves the stability, sealing, and adaptability of the connecting mechanism 2.

[0044] In one embodiment, the connecting ring 201 has a plurality of snap fasteners 5 on its outer circumferential wall. This not only improves installation efficiency but also enhances the stability and reliability of the connection.

[0045] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0046] like Figures 1-10As shown, in practical application, workers first calculate and determine the installation of a pair of connecting mechanisms 2 at regular intervals based on the overall length of the ventilation duct 1. Then, the connecting ring 201 is fixed to one side of the tunnel roof using the buckle 5 (the specific working principle of the connecting mechanism 2 is as described above). Next, the ends of the two ventilation duct sections 1 are aligned with the connecting ring 201 and inserted. Using a square wrench or other driving tool, the square head 2023 is turned, causing the connecting rod 301 to extend outwards (the specific working principle of the adjusting component 3 is as described above), thereby pushing the arc plate 306 to move synchronously and automatically adjusting its position and angle according to the inner wall shape of the ventilation duct 1. It is then fixed by the ratchet component 204, achieving a stable fixation. Simultaneously, when the end of the ventilation duct 1 is inserted into the connecting ring 201, the rubber ring 401 is compressed (the specific working principle of the sealing ring 4 is as described above), and the buffer blocks 402 cooperate to generate a uniform reaction force, further enhancing the sealing effect and ensuring good airtightness at the connection point.

[0047] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection 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.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A ventilation pipe for tunnel construction, characterized in that, include: Ventilation duct (1); A connecting mechanism (2) is provided between the two sets of ventilation ducts (1) and the two sets of ventilation ducts (1) are fixedly connected by the connecting mechanism (2) to ensure stability and convenience during installation; Adjustment component (3), several of which are disposed on the outer circumferential wall of the connecting mechanism (2) and cooperate with the connecting mechanism (2), and fix the inner wall of the ventilation duct (1) through the adjustment component (3) to ensure the stability of the duct; A sealing ring (4) is symmetrically arranged at both ends of the connecting mechanism (2), and the sealing ring (4) seals the connecting mechanism (2) and the ventilation duct (1) to ensure the airtightness of the duct.

2. The ventilation pipe for tunnel construction according to claim 1, characterized in that, The ventilation duct (1) is designed with a telescopic structure to allow for the storage and assembly of the ventilation duct (1).

3. A ventilation pipe for tunnel construction according to claim 1, characterized in that, The connecting mechanism (2) includes a connecting ring (201) disposed between the two sets of ventilation ducts (1). A driving member (202) is provided on the circumferential side wall of the connecting ring (201). Two sets of driven members (203) are provided on one side of the driving member (202) and located on the inner circumferential wall of the ventilation duct (1), and the two sets of driven members (203) move in opposite directions. A ratchet (204) is provided on the outer side of the drive component (202).

4. A ventilation pipe for tunnel construction according to claim 3, characterized in that, The driving component (202) includes a rotating shaft (2021) disposed on the circumferential sidewall of the connecting ring (201), and one end of the rotating shaft (2021) is provided with a bevel gear (2022) that cooperates with the driven component (203). The other end of the rotating shaft (2021) is provided with a square head (2023).

5. A ventilation pipe for tunnel construction according to claim 4, characterized in that, The driven member (203) includes an annular bevel gear (2031) disposed on the inner circumference of the ventilation duct (1) and cooperating with the bevel gear (2022), and an annular slider (2032) is disposed on the outer circumference of the annular bevel gear (2031). One end of the annular bevel gear (2031) is provided with a plurality of connecting blocks (2033) arranged in a circle, one end of the connecting block (2033) is provided with an annular plate (2034), and the adjusting component (3) is provided between the annular bevel gear (2031) and the annular plate (2034).

6. A ventilation pipe for tunnel construction according to claim 5, characterized in that, The adjustment assembly (3) includes a connecting rod (301) disposed between the annular bevel gear (2031) and the annular plate (2034). A circular hole (302) is provided in the middle of one side of the connecting rod (301). A limiting post (303) is sleeved on the inner circumference of the circular hole (302). A movable rod (304) that cooperates with the connecting ring (201) is symmetrically arranged on the outer circumference of the limiting post (303). A slot (305) is provided on one side of the top of the connecting rod (301), and an arc plate (306) is movably arranged inside the slot (305).

7. A ventilation pipe for tunnel construction according to claim 1, characterized in that, The sealing ring (4) includes rubber ring bodies (401) symmetrically arranged at both ends of the connecting mechanism (2). The rubber ring body (401) has a plurality of buffer blocks (402) arranged at equal intervals inside, and the two sets of buffer blocks (402) are staggered. The rubber ring (401) has a chamber (403) inside that cooperates with the buffer block (402).

8. A ventilation pipe for tunnel construction according to claim 7, characterized in that, The rubber ring (401) is conical, and the slope of the rubber ring (401) is the same as the slope of the ventilation duct (1) after it is unfolded.

9. A ventilation pipe for tunnel construction according to claim 6, characterized in that, The inner circumference of the connecting ring (201) is provided with an annular slide rail (2011) that cooperates with the annular slider (2032). The outer circumference of the connecting ring (201) is provided with an arc groove (2012) that matches the arc plate (306).

10. A ventilation pipe for tunnel construction according to claim 3, characterized in that, The outer circumferential wall of the connecting ring (201) is provided with several buckles (5).

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