Tunnel wind bag temporary support device and tunnel construction ventilation system

Abstract

The utility model relates to the field of tunnel construction, concretely is a kind of tunnel wind bag temporary support device and tunnel construction ventilation system, the support device includes support seat connection in tunnel construction trolley;Telescopic rod includes several telescopic segments, telescopic rod one end is connected in support seat, each telescopic segment can slide telescopic relative to previous telescopic segment, and the telescopic direction of telescopic rod is along tunnel axial direction setting;Support frame is arc-shaped, and the extension end of each telescopic segment is connected with a support frame, and support frame is used to support the wind bag of tunnel ventilation.The utility model is set up support seat on trolley, support seat connects telescopic rod, telescopic rod connects support frame, and temporary support device is formed after telescopic rod unfolding, can effectively support the wind bag of the area between various construction trolleys, avoid wind bag droop deformation and ground damage, improve the ventilation efficiency of working face, can be folded to reduce space occupation when not using, and the support device structure is simple, convenient to use, and effect is good.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction, and in particular to a temporary support device for tunnel ventilation bags and a tunnel construction ventilation system. Background Technology

[0002] Ventilation is a critical factor during tunnel construction, as it directly affects worker safety and health. The air quality inside tunnels is often poor, containing various harmful gases such as carbon monoxide and carbon dioxide, as well as dust and other harmful substances. Therefore, an effective ventilation system is needed to ensure air circulation and quality. Air ducts (also known as ventilation boxes) play a vital role as one of the essential ventilation devices in tunnel construction.

[0003] During tunnel construction, the completed tunnel sections are often equipped with support devices to fix and support the flexible ventilation bags above the tunnel. Near the tunnel face, the tunnel is not yet completed, and there are various work trolleys inside the tunnel. The ventilation bags need to pass over the trolleys to reach the tunnel face. When the ventilation bags pass through the space between multiple trolleys, there are no support devices, which causes the ventilation bags to sag, bend and deform, affecting the ventilation effect. In some cases, the ventilation bags may even touch the ground without support, occupying construction space and easily causing damage to the ventilation bags. Utility Model Content

[0004] The purpose of this utility model is to address the problem that in existing technologies, when various work trolleys are located in the tunnel near the working face, the ventilation bags do not have a support device when passing through the space between multiple trolleys, causing the ventilation bags to sag, bend, and deform, affecting the ventilation effect, and even the ventilation bags may touch the ground without support, occupying construction space and easily causing damage to the ventilation bags. The present invention provides a temporary support device for tunnel ventilation bags and a tunnel construction ventilation system.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] In a first aspect, this utility model provides a temporary support device for tunnel ventilation bags, including a support base, a telescopic rod, and a support frame; the support base is connected to a tunnel construction trolley; the telescopic rod includes several telescopic segments, one end of the telescopic rod is connected to the support base, each telescopic segment can slide and extend relative to the previous telescopic segment, and the telescopic direction of the telescopic rod is configured to be along the tunnel axis; the support frame is arc-shaped, and each extended end of the telescopic segment is connected to a support frame, the support frame being used to support the ventilation bags for tunnel ventilation.

[0007] The tunnel ventilation bag temporary support device described in this utility model consists of a support seat installed on a trolley, the support seat connected to a telescopic rod, and the telescopic rod connected to a support frame. When the telescopic rod is unfolded, it forms a temporary support device that can effectively support the ventilation bags in the area between various construction trolleys, preventing the ventilation bags from sagging, deforming, or being damaged by the ground, thus improving the ventilation efficiency of the tunnel face. When not in use, it can be folded to reduce space occupation. This temporary support device has a simple structure, is easy to use, and has good effects.

[0008] As a preferred technical solution of this utility model, the support base is connected to the trolley by bolts, riveting, or welding.

[0009] As a preferred technical solution of this utility model, the support base is a plate.

[0010] As a preferred technical solution of this utility model, the telescopic rod includes 4 to 6 telescopic segments.

[0011] As a preferred technical solution of this utility model, a set of pin holes are provided on the protruding end side of the first telescopic segment and the retracting end side of the second telescopic segment, and a matching pin is provided after the pin holes are aligned.

[0012] As a preferred technical solution of this utility model, the support base is connected to an inclined support, and one end of the inclined support is connected to the bottom of the telescopic rod.

[0013] As a preferred technical solution of this utility model, two telescopic rods are connected to the support base. The two telescopic rods are arranged in parallel, and the corresponding telescopic segments of the two telescopic rods are connected to the same support frame.

[0014] As a further preferred technical solution of this utility model, the support frame is connected to the telescopic segment via support legs.

[0015] As a further preferred technical solution of this utility model, at least one transverse connecting rod is connected between the two telescopic rods.

[0016] Secondly, this utility model also provides a tunnel construction ventilation system, including a ventilation bag and a temporary support device for the tunnel ventilation bag as described in any of the above claims, wherein the support frame supports the ventilation bag.

[0017] The tunnel construction ventilation system of this utility model, by setting the support seat on the trolley, the support seat is connected to the telescopic rod, and the telescopic rod is connected to the support frame. When the telescopic rod is unfolded, it forms a temporary support device, which can effectively support the air bags in the area between various construction trolleys, avoid the air bags from sagging, deforming, and being damaged by the ground, and improve the ventilation efficiency of the working face. When not in use, it can be folded to reduce space occupation. This tunnel construction ventilation system has a simple structure, is easy to use, and has good effect.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0019] This utility model discloses a temporary support device for tunnel ventilation bags and a tunnel construction ventilation system. By setting the support seat on the trolley, the support seat is connected to the telescopic rod, and the telescopic rod is connected to the support frame. When the telescopic rod is unfolded, it forms a temporary support device, which can effectively support the ventilation bags in the area between various construction trolleys, avoid the ventilation bags from sagging, deforming, and being damaged by the ground, and improve the ventilation efficiency of the tunnel face. When not in use, it can be folded to reduce space occupation. This temporary support device has a simple structure, is easy to use, and has good effect. Attached Figure Description

[0020] Figure 1 A front view schematic diagram of a temporary support device for tunnel ventilation bags;

[0021] Figure 2 A top view schematic diagram of a temporary support device for tunnel ventilation bags;

[0022] Figure 3 A side view schematic diagram of a temporary support device for tunnel ventilation bags;

[0023] Figure 4 for Figure 3 A schematic diagram of the telescopic pole after it has been deployed.

[0024] Marked in the image:

[0025] 01-Windbag;

[0026] 1-Support base;

[0027] 2-Telescopic pole, 21-First pole body, 22-Second pole body, 23-Third pole body, 24-Fourth pole body;

[0028] 3-Support frame;

[0029] 4-outriggers;

[0030] 5-Diagonal bracing;

[0031] 6- Lateral link;

[0032] 7- Bolt. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to experimental examples and specific embodiments. However, this should not be construed as limiting the scope of the above-mentioned subject matter of the present invention to the following embodiments. All technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0034] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0035] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0036] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0037] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0038] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0039] In related technologies, during tunnel construction, the completed tunnel sections are often equipped with support devices to fix and support flexible ventilation bags above the tunnel. Near the tunnel face, where the tunnel is not yet formed and various work trolleys are present, the ventilation bags need to be installed across these trolleys to reach the tunnel face. When the ventilation bags pass through the space between multiple trolleys, there is no support device, causing the ventilation bags to sag, bend, and deform, affecting ventilation efficiency. In some cases, the ventilation bags may even touch the ground without support, occupying construction space and easily causing damage. Therefore, the technical solution of this application was developed. The following is a detailed explanation... Figures 1 to 4 To elaborate.

[0040] Example 1

[0041] like Figures 1 to 4 As shown, the temporary support device for tunnel ventilation bags according to this utility model includes a support base 1, a telescopic rod 2, and a support frame 3.

[0042] like Figure 1 , Figure 3 and Figure 4 As shown, the support base 1 is connected to the end of the tunnel construction trolley; the support base 1 is a plate, and the support base 1 is connected, riveted or welded to the trolley by bolts 7. The figure illustrates the connection by bolts 7, which is convenient for assembly and disassembly and can be rotated.

[0043] The telescopic rod 2 comprises several telescopic segments, preferably 4 to 6 segments. One end of the telescopic rod 2 is connected to the support base 1. Each telescopic segment can slide and extend relative to the preceding telescopic segment. The telescopic direction of the telescopic rod 2 is configured along the tunnel axis. When a subsequent telescopic segment extends relative to the preceding segment, it can be limited to prevent retraction. Specifically, a set of pin holes can be matched on the extended end side of the preceding telescopic segment and the retracted end side of the subsequent telescopic segment. When the subsequent telescopic segment extends relative to the preceding segment, the matching set of pin holes aligns, and a matching pin is inserted to limit the adjacent telescopic segments. This means that the extension of the telescopic rod 2 increases the length of the temporary support device, forming a support area to support the air bag 01, avoiding the poor support effect of point contact support.

[0044] In one alternative implementation, such as Figure 4 As shown, the telescopic rod 2 includes four telescopic segments, namely, a first rod 21, a second rod 22, a third rod 23, and a fourth rod 24. One end of the first rod 21 is fixedly connected to the support base 1, for example, by welding. The first rod 21 is a hollow rod, with the second rod 22 slidably connected inside. The second rod 22 is a hollow rod, with the third rod 23 slidably connected inside. The third rod 23 is a hollow rod, with the fourth rod 24 slidably connected inside. That is, the second rod 22, the third rod 23, and the fourth rod 24 can extend out respectively.

[0045] like Figure 1 As shown, the support frame 3 is arc-shaped, preferably close to a semi-circle, which provides more contact surface and facilitates the placement of the air bag 01 on the other side; Figures 2 to 4 As shown, each of the telescopic segments has a support frame 3 connected to its protruding end; as Figure 1 As shown, the support frame 3 is used to support the ventilation bag 01 for tunnel ventilation; as Figure 2 As shown, the arc surface of the support frame 3 is arranged perpendicular to the axial direction of the telescopic rod 2.

[0046] In one alternative implementation, such as Figure 1 and Figure 2 As shown, two telescopic rods 2 are connected to the support base 1. The two telescopic rods 2 are arranged in parallel, and the corresponding telescopic segments of the two telescopic rods 2 are connected to the same support frame 3 via support legs 4. This connection can be achieved by welding. Figure 1 , Figure 3 and Figure 4As shown, each telescopic rod 2 is provided with an inclined support 5 below it, and the two ends of the inclined support 5 are respectively connected to the bottom of the telescopic rod 2 and the support base 1; as shown Figure 2 As shown, at least one transverse link 6 is connected between the two first rods 21 to increase transverse stiffness. The figure illustrates the case where two of the transverse links 6 are provided.

[0047] In an optional embodiment, to ensure lightweight yet sufficient strength, the support base 1, the telescopic rod 2, the support frame 3, the support leg 4, the diagonal support 5, and the transverse connecting rod 6 may be made of aluminum alloy.

[0048] This embodiment describes a temporary support device for tunnel ventilation bags. By setting a support base 1 on a trolley, the support base 1 is connected to a telescopic rod 2, and the telescopic rod 2 is connected to a support frame 3. When the telescopic rod 2 is unfolded, it forms a temporary support device that can effectively support the ventilation bags 01 in the area between various construction trolleys, preventing the ventilation bags 01 from sagging, deforming, or being damaged by the ground, thus improving the ventilation efficiency of the tunnel face. When not in use, it can be folded to reduce space occupation. This temporary support device has a simple structure, is easy to use, and has good effects.

[0049] Example 2

[0050] Not shown, the tunnel construction ventilation system of this utility model includes a ventilation bag 01 and a temporary support device for the tunnel ventilation bag as described in Embodiment 1, wherein the support frame 3 supports the ventilation bag 01.

[0051] 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 and improvements 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 temporary support device for tunnel ventilation bags, characterized in that, include: Support base (1), connected to the tunnel construction trolley; The telescopic rod (2) includes several telescopic segments. One end of the telescopic rod (2) is connected to the support base (1). Each telescopic segment can slide and extend relative to the previous telescopic segment. The telescopic direction of the telescopic rod (2) is configured to be set along the tunnel axis. The support frame (3) is arc-shaped, and each telescopic segment has a support frame (3) connected to its extended end. The support frame (3) is used to support the ventilation bag (01) of the tunnel.

2. The temporary support device for tunnel ventilation bags according to claim 1, characterized in that, The support base (1) is connected to the trolley by bolts (7), riveting or welding.

3. The temporary support device for tunnel ventilation bags according to claim 1, characterized in that, The support base (1) is a plate.

4. The temporary support device for tunnel ventilation bags according to claim 1, characterized in that, The telescopic rod (2) includes 4 to 6 telescopic segments.

5. The temporary support device for tunnel ventilation bags according to claim 1, characterized in that, A set of pin holes is provided on one side of the extended end of the former telescopic segment and one side of the retracted end of the latter telescopic segment, and a matching pin is provided after the pin holes are aligned.

6. The temporary support device for tunnel ventilation bags according to claim 1, characterized in that, An inclined support (5) is connected to the support base (1), and one end of the inclined support (5) is connected to the bottom of the telescopic rod (2).

7. The temporary support device for tunnel ventilation bags according to any one of claims 1-6, characterized in that, Two telescopic rods (2) are connected to the support base (1). The two telescopic rods (2) are arranged in parallel, and the corresponding telescopic segments of the two telescopic rods (2) are connected to the same support frame (3).

8. The temporary support device for tunnel ventilation bags according to claim 7, characterized in that, The support frame (3) is connected to the telescopic segment via the support legs (4).

9. The temporary support device for tunnel ventilation bags according to claim 7, characterized in that, At least one transverse link (6) connects the two telescopic rods (2).

10. A tunnel construction ventilation system, characterized in that, Includes a ventilation bag (01) and a temporary support device for the tunnel ventilation bag as described in any one of claims 1-9, wherein the support frame (3) supports the ventilation bag (01).

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