Ventilation device for tunnel construction

Abstract

The utility model discloses a tunnel construction ventilation device, which relates to the technical field of tunnel construction and comprises a ventilation hose, a telescopic pipe and a bearing rod, one end of the ventilation hose is fixedly communicated with a mounting frame, the other end of the ventilation hose is fixedly communicated with a mounting block, and a support frame is arranged at the bottom of the mounting frame. The installation blocks of every two adjacent ventilation hoses are matched with the installation frames in an inserted connection mode, telescopic pipes are rotationally connected to the two sides of each installation frame, each telescopic pipe comprises at least two supporting pipes in threaded connection, sleeve holes are formed in the two ends of each bearing rod, and the sleeve holes are matched with the telescopic pipes in a sleeved connection mode. The bearing rod is used for bearing the ventilation hose. The ventilation hose can be prevented from falling.

Description

Technical Field

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

[0002] During tunnel construction, ventilation is required inside the tunnel. Ventilation involves installing fans inside the tunnel and using several flexible ventilation hoses to connect the fans to the outside of the tunnel.

[0003] The patent with publication number CN218760019U discloses a "ventilation structure for tunnel construction," see [link / reference]. Figure 1 The patent includes a ventilation hose 1, one end of which is fixedly connected to an installation frame 2, and the other end of which is fixedly connected to an installation block 3. The installation frame 2 is a concave plate structure, and both sides of the installation frame 2 are provided with through grooves 21. Both sides of the installation block 3 are provided with sliding grooves, and a wedge block 31 is slidably connected in the sliding groove. One end of the wedge block 31 is fixedly connected to a spring, and the other end of the spring is fixedly connected to the inside of the sliding groove.

[0004] When assembling two adjacent ventilation hoses 1, simply insert the mounting block 3 on the previous ventilation hose 1 into the mounting frame 2 on the next ventilation hose 1.

[0005] Furthermore, in the aforementioned patent, a threaded rod 4 is fixedly connected to the lower end of the mounting frame 2, and a support column 5 is threadedly connected to the surface of the threaded rod 4. The height of the ventilation hose 1 can be adjusted by rotating the support column 5.

[0006] While the aforementioned patent facilitates the disassembly and assembly of adjacent ventilation hoses, dust accumulates inside the hoses over time, causing them to sag. On one hand, the sagned hoses obstruct the ground, hindering construction; on the other hand, the sagned hoses increase the length of the ventilation path, reducing ventilation efficiency.

[0007] Therefore, how to prevent ventilation ducts from sagging is a technical problem that needs to be solved. Utility Model Content

[0008] To address the aforementioned shortcomings of existing technologies, this invention proposes a ventilation device for tunnel construction, which can prevent ventilation hoses from sagging.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0010] A ventilation device for tunnel construction includes a ventilation hose, a telescopic pipe, and a support rod. One end of the ventilation hose is fixedly connected to an installation frame, and the other end of the ventilation hose is fixedly connected to an installation block. A support frame is provided at the bottom of the installation frame. The installation blocks of two adjacent ventilation hoses are inserted into the installation frame. Telescopic pipes are rotatably connected to both sides of the installation frame. Each telescopic pipe includes at least two threaded support pipes. Both ends of the support rod are provided with sleeve holes that are sleeved with the telescopic pipes. When the support pipes on two adjacent installation frames are threadedly connected, the support rod is used to support the ventilation hose.

[0011] Furthermore, the support rod is provided in multiple forms.

[0012] Furthermore, the support frame includes a base, a lifting sleeve, a lifting inner rod, a lead screw, and a power mechanism. The top surface of the base is provided with a lifting sleeve, and the lifting inner rod is vertically slidably connected inside the lifting sleeve. The top of the lifting inner rod is provided with the mounting frame, and the interior of the lifting inner rod is threadedly connected to the lead screw. The interior of the base is provided with a power mechanism, which is used to drive the lead screw to rotate.

[0013] Furthermore, the power mechanism includes an operating lever, a driving gear, and a driven gear. The operating lever is located on one side of the lifting sleeve, and its lower end penetrates into the interior of the base. The operating lever is rotatably connected to the base. The lower end of the operating lever is provided with a driving gear, and the driven gear is located at the lower end of the lead screw. The lead screw is rotatably connected to the base, and the driving gear and the driven gear cooperate with each other.

[0014] Furthermore, the upper end of the operating lever is provided with a handle.

[0015] Furthermore, the base is provided with ear plates on its side, which are connected to underground bolts.

[0016] The beneficial effects of this utility model are:

[0017] 1. In this utility model, when the telescopic pipes on two adjacent ventilation hoses are connected together, the support rod sleeved on the telescopic pipe can support the ventilation hose and prevent it from sagging. On the one hand, this prevents the sagging ventilation hose from obstructing the ground and hindering construction; on the other hand, it prevents the ventilation path from becoming longer, which helps to ensure ventilation efficiency.

[0018] 2. When connecting the telescopic pipes on two adjacent ventilation hoses, simply unscrew the inner support pipe in the latter telescopic pipe until it is screwed into the outer support pipe in the former telescopic pipe. This operation is simple and helps to improve the connection efficiency.

[0019] 3. When the telescopic tubes on both sides of the mounting frame are turned to the vertical position and the inner support tube is screwed into the outer support tube, the support rod can be sleeved on the upper end of the outer support tube. At this time, the structure of the telescopic rod and the mounting frame is compact, saving space and making it convenient to store.

[0020] 4. When adjusting the height of the ventilation hose, there is no need to lift the support frame; the worker only needs to operate the handle. In the prior art, adjusting the height of the ventilation hose requires rotating the support column, which necessitates lifting the support column off the ground. Compared to the former, this invention eliminates the need for lifting, reducing labor intensity and making operation more convenient.

[0021] 5. By connecting the ear plate to the buried bolt, this utility model can improve the stability of the base when placed on the ground. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the background technology;

[0023] Figure 2 A three-dimensional ventilation device for tunnel construction Figure 1 ;

[0024] Figure 3 A three-dimensional ventilation device for tunnel construction Figure 2 ;

[0025] Figure 4 This is a top view of a ventilation device used in tunnel construction.

[0026] Figure 5 yes Figure 4 Sectional view at point AA;

[0027] Figure 6 This is a diagram showing the usage status of a ventilation device used in tunnel construction.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1-Ventilation hose,

[0030] 2-Mounting frame, 21-Through groove,

[0031] 3-Mounting block, 31-Wedge block,

[0032] 4-Threaded rod,

[0033] 5-Support column,

[0034] 61-Inner support tube, 62-Outer support tube

[0035] 7-Support rod, 71-Sleeve hole,

[0036] 81-Base, 811-Ear plate, 82-Lifting sleeve, 83-Lifting inner rod, 84-Lead screw, 85-Operating lever, 86-Drive gear, 87-Driven gear, 88-Handle. Detailed Implementation

[0037] To better understand this utility model, it will be further described below with reference to the accompanying drawings. It is worth noting that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] Example 1:

[0039] See Figures 2-6 A ventilation device for tunnel construction includes a ventilation hose 1, a telescopic pipe, and a support rod 7.

[0040] One end of the ventilation hose 1 is fixedly connected to the mounting frame 2, and the other end of the ventilation hose 1 is fixedly connected to the mounting block 3.

[0041] The structures of the mounting frame 2 and the mounting block 3 are the same as those in the background art. The mounting frame 2 is a concave plate structure. Both sides of the mounting frame 2 are provided with through grooves 21. Both sides of the mounting block 3 are provided with sliding grooves. A wedge block 31 is slidably connected in the sliding groove. One end of the wedge block 31 located inside the sliding groove is fixedly connected to a spring, and the other end of the spring is fixedly connected to the inside of the sliding groove.

[0042] When assembling two adjacent ventilation hoses 1: simply insert the mounting block 3 on the previous ventilation hose 1 into the mounting frame 2 on the next ventilation hose 1. During the insertion process, the wedge block 31 slides in the groove. After insertion, the wedge block 31 is popped out of the groove by the spring and stuck in the through groove 21.

[0043] When splitting two adjacent ventilation hoses 1: push the wedge block 31 into the slide groove. When the wedge block 31 is fully inserted into the slide groove, pull out the mounting block 3 to achieve the effect of splitting the two ventilation hoses 1.

[0044] A support frame is installed at the bottom of mounting frame 2.

[0045] Telescopic tubes are rotatably connected to both sides of the mounting frame 2. In this embodiment 1, the telescopic tubes include two threaded support tubes, referred to as the inner support tube 61 and the outer support tube 62, respectively. Multiple support rods 7 are provided, and each end of the support rod 7 is provided with a sleeve hole 71, which is slidably fitted with the inner support tube 61 and the outer support tube 62.

[0046] The working principle of this embodiment 1 is as follows:

[0047] See Figure 6To improve the stability of the ventilation hose 1 and prevent it from sagging, the following steps can be taken: First, the worker assembles two adjacent ventilation hoses 1; then, the worker rotates the telescopic tube to a horizontal position; next, the worker unscrews the inner support tube 61 from the latter telescopic tube until it is screwed into the outer support tube 62 of the former telescopic tube, thus connecting the two adjacent telescopic tubes; finally, along the length of the inner support tube 61 and the outer support tube 62, the support rod 7 is slid to ensure even distribution of its position. At this point, the ventilation hose 1 is supported by the support rod 7, preventing it from sagging.

[0048] See Figure 2 and Figure 3 When the telescopic tubes on both sides of the mounting frame 2 are turned to the vertical position and the inner support tube 61 is screwed into the outer support tube 62, the support rod 7 can be sleeved on the upper end of the outer support tube 62. At this time, the structure of the telescopic rod and the mounting frame 2 is compact, saving space and making it convenient to store.

[0049] As can be seen from the above working principle, in this embodiment, when the telescopic pipes on two adjacent ventilation hoses 1 are connected together, the support rod 7 sleeved on the telescopic pipe can support the ventilation hose 1 and prevent the ventilation hose 1 from falling. On the one hand, this prevents the ventilation hose 1 from obstructing the ground after falling, thus avoiding obstruction of construction; on the other hand, it prevents the increase in the length of the ventilation path, which is conducive to ensuring ventilation efficiency.

[0050] Furthermore, when connecting the telescopic pipes on two adjacent ventilation hoses 1, it is only necessary to unscrew the inner support pipe 61 in the latter telescopic pipe until the inner support pipe 61 is screwed into the outer support pipe 62 in the former telescopic pipe. The operation is simple and helps to improve the connection efficiency.

[0051] Example 2:

[0052] This embodiment 2 provides the specific structure of the support frame in embodiment 1.

[0053] See Figures 2-6 The support frame includes a base 81, a lifting sleeve 82, a lifting inner rod 83, a lead screw 84, and a power mechanism.

[0054] A lug plate 811 is fixedly installed on the side of the base 81. By connecting the lug plate 811 to the buried bolts, the stability of the base 81 on the ground can be improved. A lifting sleeve 82 is fixedly installed on the top surface of the base 81. A lifting inner rod 83 is vertically slidably connected inside the lifting sleeve 82. A mounting frame 2 is fixedly installed on the top of the lifting inner rod 83. The inside of the lifting inner rod 83 is threadedly connected to a lead screw 84. A power mechanism is provided inside the base 81 to drive the lead screw 84 to rotate.

[0055] The power mechanism includes an operating lever 85, a driving gear 86, and a driven gear 87. The operating lever 85 is located on one side of the lifting sleeve 82. A handle 88 is fixedly installed on the upper end of the operating lever 85, and the lower end of the operating lever 85 penetrates into the interior of the base 81. The operating lever 85 is rotatably connected to the base 81. The driving gear 86 is fixedly installed on the lower end of the operating lever 85, and the driven gear 87 is fixedly installed on the lower end of the lead screw 84. The lead screw 84 is rotatably connected to the base 81, and the driving gear 86 meshes with the driven gear 87.

[0056] When the height of the ventilation hose 1 needs to be increased: the worker rotates the operating lever 85 clockwise through the operating handle 88. The operating lever 85 drives the driving gear 86 to rotate clockwise, and the driven gear 87 meshing with the driving gear 86 rotates counterclockwise. The driven gear 87 drives the lead screw 84 to rotate counterclockwise. The lifting inner rod 83, which is threadedly connected to the lead screw 84, moves upward inside the lifting sleeve 82, causing the mounting frame 2 to move upward. The mounting frame 2 then drives the ventilation hose 1 to move upward.

[0057] When it is necessary to lower the height of the ventilation hose 1, the worker can simply turn the operating lever 85 in the opposite direction.

[0058] After adjusting the height of ventilation hose 1, the assembly of two adjacent ventilation hoses 1 can be carried out.

[0059] As described above, when adjusting the height of the ventilation hose 1, there is no need to lift the support frame; the worker only needs to operate the handle 88. In the prior art, adjusting the height of the ventilation hose 1 requires rotating the support column 5, which necessitates lifting the support column 5 off the ground. Compared to the prior art, this embodiment eliminates the need for lifting, reducing labor intensity and making operation more convenient.

[0060] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A ventilation device for tunnel construction, comprising a ventilation hose, one end of which is fixedly connected to a mounting frame, and the other end of which is fixedly connected to a mounting block. A support frame is provided at the bottom of the mounting frame, and the mounting blocks of two adjacent ventilation hoses are inserted into and engaged with the mounting frame. The device is characterized in that... It also includes telescopic tubes and support rods. Telescopic tubes are rotatably connected to both sides of the mounting frame. Each telescopic tube includes at least two threaded support tubes. Both ends of the support rod are provided with sleeve holes, which are fitted into the telescopic tubes. When the support tubes on two adjacent mounting frames are threadedly connected, the support rod is used to support the ventilation hose.

2. The tunnel construction ventilation device according to claim 1, characterized in that, The supporting rods are provided in multiple quantities.

3. A tunnel construction ventilation device according to claim 1, characterized in that, The support frame includes a base, a lifting sleeve, a lifting inner rod, a lead screw, and a power mechanism. The top surface of the base is provided with a lifting sleeve, and the lifting inner rod is vertically slidably connected inside the lifting sleeve. The top of the lifting inner rod is provided with the mounting frame, and the interior of the lifting inner rod is threadedly connected to the lead screw. The interior of the base is provided with a power mechanism, which is used to drive the lead screw to rotate.

4. A tunnel construction ventilation device according to claim 3, characterized in that, The power mechanism includes an operating lever, a driving gear, and a driven gear. The operating lever is located on one side of the lifting sleeve, and its lower end penetrates into the interior of the base. The operating lever is rotatably connected to the base. The lower end of the operating lever is provided with a driving gear, and the driven gear is located at the lower end of the lead screw. The lead screw is rotatably connected to the base, and the driving gear and the driven gear cooperate with each other.

5. A tunnel construction ventilation device according to claim 4, characterized in that, The upper end of the operating lever is provided with a handle.

6. A tunnel construction ventilation device according to claim 3, characterized in that, The base is provided with ear plates on its side, which are connected to underground bolts.

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