Device and method for cleaning deep holes with small apertures using high-pressure air

Abstract

The present invention is a device and method for clearing deep holes with small diameters using high-pressure air. The device for clearing deep holes with small diameters using high-pressure air includes a rubber locking air pressure cap, a high-pressure air pipe, and a tension limiting component. The rubber locking air pressure cap is a conical cap structure. One end of the high-pressure air pipe is inserted into the interior of the rubber locking air pressure cap and fixedly connected to the rubber locking air pressure cap. An air outlet is provided on the inserted end of the high-pressure air pipe, and the other end thereof is connected to an air compressor. The tension limiting component is sleeved on the inserted end of the high-pressure air pipe and fixedly connected to the rubber locking air pressure cap. The tension limiting component can limit the maximum opening angle of the rubber locking air pressure cap. Through the device for clearing deep holes with small diameters using high-pressure air, problems such as difficult cleaning of accumulated slag in deep holes during the hole clearing process, poor cleaning effect, high cost, and long time can be effectively solved, and simple and rapid hole clearing can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of highway engineering and civil engineering, and particularly relates to a device and method for clearing deep holes with small diameters by using high-pressure air. Background Art

[0002] Tunnel grouting is a relatively mature technology, commonly used for tunnel surrounding rock consolidation, etc. Conventional tunnel grouting must perform hole cleaning operations after the construction of grouting holes. However, it is difficult to meet the requirements for clearing deep holes with small diameters. Many times of hole cleaning are required to meet the requirements, resulting in a slow construction speed and material waste. Summary of the Invention

[0003] To solve the above problems, the present invention provides a device and method for clearing deep holes with small diameters by using high-pressure air, which can save costs, shorten the construction period, and generate good social and economic benefits.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A device for clearing deep holes with small diameters by using high-pressure air, the device for clearing deep holes with small diameters by using high-pressure air includes a rubber locking air pressure cap, a high-pressure air pipe, and a tension limiting component; the rubber locking air pressure cap is a conical cap structure, one end of the high-pressure air pipe is inserted into the inside of the rubber locking air pressure cap and fixedly connected to the rubber locking air pressure cap, an air outlet is provided on the inserted end of the high-pressure air pipe, and the other end is connected to an air compressor; the tension limiting component is sleeved on the inserted end of the high-pressure air pipe and fixedly connected to the rubber locking air pressure cap, and the tension limiting component can limit the maximum opening angle of the rubber locking air pressure cap.

[0006] Preferably, the tension limiting component is composed of a sliding collar, a plurality of opening limiting rods, and a plurality of cap support skeletons. The sliding collar is sleeved on the inserted end of the high-pressure air pipe, and a plurality of opening limiting rods are arranged equidistantly around its outer wall. One end of the opening limiting rod is hinged to the outer wall of the sliding collar, and the other end is hinged to the cap support skeleton. The plurality of cap support skeletons are centered on the cone vertex of the conical cap and are dispersed and attached to the inner wall of the rubber locking air pressure cap at equal intervals and fixedly connected to the inner wall of the rubber locking air pressure cap.

[0007] Preferably, the number of the opening limiting rods is greater than or equal to two, and the number of the cap support skeletons is greater than or equal to two.

[0008] Preferably, the high-pressure air pipe adopts a high-pressure steel air pipe.

[0009] A method for clearing deep holes with small diameters by using high-pressure air, the method for clearing deep holes with small diameters by using high-pressure air uses the above device for clearing deep holes with small diameters by using high-pressure air, and includes the following steps:

[0010] Step 1: Insert the insertion end of the high-pressure air duct into the grouting hole to be cleaned. At the same time, connect the other end of the high-pressure air duct to an air compressor and inject high-speed and high-pressure gas.

[0011] Step 2: Inject high-speed and high-pressure gas, which causes the rubber locking air pressure cap connected to the insertion end of the high-pressure air duct to deform. The rubber locking air pressure cap expands and fits against the hole wall of the grouting hole. The inner wall of the cap head deflects the high-speed and high-pressure gas, which is discharged from the orifice direction of the grouting hole. During the gas discharge process, the sediment accumulated in the grouting hole near the rubber locking air pressure cap is discharged in the gas discharge direction.

[0012] Step 3: Slowly pull out the high-pressure air duct from the grouting hole, keeping the rubber locking air pressure cap moving uniformly towards the orifice direction, and keeping the sediment blown out from the deep hole evenly discharged towards the orifice. When the insertion end of the high-pressure air duct moves from the hole to the orifice, the hole cleaning work is completed.

[0013] Preferably, after injecting high-speed and high-pressure gas in Step 2, the tension limiting component can limit the maximum opening angle of the rubber locking air pressure cap.

[0014] Preferably, during the process of the rubber locking air pressure cap moving uniformly towards the orifice direction in Step 3, the expanded rubber locking air pressure cap can rub against the hole wall of the grouting hole, bringing out the sediment that cannot be discharged by the high-speed and high-pressure gas attached to the hole wall.

[0015] The beneficial effects of the present invention are:

[0016] The device for cleaning deep holes with small diameters using high-pressure air can effectively solve problems such as difficult cleaning of sediment in deep holes during the hole cleaning process, poor cleaning effect, high cost, and long time. The overall structure of the device for cleaning deep holes with small diameters using high-pressure air is simple, easy to operate, and low in cost. It can meet the requirements for emptying grouting holes with deep holes and small diameters. One-time hole cleaning can meet the requirements, achieving simple and fast hole cleaning while accelerating the construction speed. Description of the Drawings

[0017] Figure 1 is the overall structure schematic diagram of the present invention;

[0018] Figure 2 is the structure schematic diagram of the tension limiting component of the present invention;

[0019] Figure 1 —In Figure 2, 1 - rubber locking air pressure cap, 2 - high-pressure air duct, 3 - air outlet, 4 - sliding collar, 5 - opening limiting rod, 6 - cap head support frame. Detailed Embodiments

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] As Figure 1 shown in FIG. -2, the present invention is a device for cleaning deep holes with small diameters using high-pressure air. The device for cleaning deep holes with small diameters using high-pressure air includes a rubber locking air pressure cap 1, a high-pressure air pipe 2, and a tension limiting component. The rubber locking air pressure cap 1 is a conical cap structure. One end of the high-pressure air pipe 2 is inserted into the inside of the rubber locking air pressure cap 1 and fixedly connected to the rubber locking air pressure cap 1. The high-pressure air pipe 2 is preferably a high-pressure steel air pipe. An air outlet 3 is provided at the inserted end of the high-pressure air pipe 2, and the other end is connected to an air compressor. The tension limiting component is sleeved on the inserted end of the high-pressure air pipe 2 and fixedly connected to the rubber locking air pressure cap 1. The tension limiting component can limit the maximum opening angle of the rubber locking air pressure cap 1.

[0022] Specific structure of the tension limiting component:

[0023] The tension limiting component is composed of a sliding collar 4, a plurality of opening limiting rods 5, and a plurality of cap support skeletons 6. The sliding collar 4 is sleeved on the inserted end of the high-pressure air pipe 2. A plurality of opening limiting rods 5 are arranged around the outer wall of the sliding collar 4 at equal intervals. One end of the opening limiting rod 5 is hinged to the outer wall of the sliding collar 4, and the other end is hinged to the cap support skeleton 6. The plurality of cap support skeletons 6 are evenly dispersed and attached to the inner wall of the rubber locking air pressure cap 1 with the cone vertex of the conical cap as the center and fixedly connected to the inner wall of the rubber locking air pressure cap 1. The number of the opening limiting rods 5 and the number of the cap support skeletons 6 are at least two. When high-speed and high-pressure gas is generated at the air outlet 3 at the inserted end of the high-pressure air pipe 2, the rubber locking air pressure cap 1 deforms. While the rubber locking air pressure cap 1 opens, the sliding collar 4 slides on the high-pressure air pipe 2. Since the two ends of the opening limiting rod 5 are respectively hinged to the sliding collar 4 and the cap support skeleton 6, the maximum opening angle of the rubber locking air pressure cap 1 can be limited.

[0024] When using the device for cleaning deep holes with small diameters using high-pressure air to clean deep holes with small diameters, the following steps can be carried out.

[0025] Step 1: Insert the insertion end of the high-pressure air duct 2 into the grouting hole to be cleared of holes. At the same time, connect the other end of the high-pressure air duct 2 to an air compressor and inject high-speed high-pressure gas. Step 2: Inject high-speed high-pressure gas, causing the rubber locking air pressure cap 1 connected to the insertion end of the high-pressure air duct 2 to deform. The rubber locking air pressure cap 1 expands and fits against the hole wall of the grouting hole. The inner wall of the cap head deflects the high-speed high-pressure gas, which is discharged from the orifice direction of the grouting hole. During the gas discharge process, the sediment accumulated in the grouting hole near the rubber locking air pressure cap 1 is discharged in the gas discharge direction. Step 3: Slowly pull out the high-pressure air duct 2 from the grouting hole, keeping the rubber locking air pressure cap 1 moving uniformly towards the orifice direction, and keeping the sediment blown out from the deep hole evenly discharged towards the orifice. When the insertion end of the high-pressure air duct 2 moves from the hole to the orifice, the hole clearing work is completed.

[0026] It should be noted that in Step 2, there is a limiting effect of the tension limiting component. After injecting high-speed high-pressure gas, the tension limiting component can limit the maximum opening angle of the rubber locking air pressure cap 1. In addition, in Step 3, there is a process of rubbing between the rubber locking air pressure cap 1 and the hole wall of the grouting hole. During the process of the rubber locking air pressure cap 1 moving uniformly towards the orifice direction, the expanded rubber locking air pressure cap 1 can rub against the hole wall of the grouting hole, bringing out the sediment that cannot be discharged due to the high-speed high-pressure gas attached to the hole wall.

Claims

1. A method for cleaning deep holes with small diameters using high-pressure air. The method for cleaning deep holes with small diameters using high-pressure air utilizes a device for cleaning deep holes with small diameters using high-pressure air, and is characterized in that: The device for cleaning deep holes with small diameters using high-pressure air includes a rubber locking air pressure cap, a high-pressure air pipe, and a tension limiting component; the rubber locking air pressure cap is a conical cap structure, one end of the high-pressure air pipe is inserted into the inside of the rubber locking air pressure cap and fixedly connected to the rubber locking air pressure cap, an air outlet is provided on the inserted end of the high-pressure air pipe, and the other end thereof is connected to an air compressor; the tension limiting component is sleeved on the inserted end of the high-pressure air pipe and fixedly connected to the rubber locking air pressure cap, and the tension limiting component can limit the maximum opening angle of the rubber locking air pressure cap; The method for cleaning deep holes with small diameters using high-pressure air includes the following steps: Step 1, insert the inserted end of the high-pressure air pipe into the grouting hole to be cleaned, and at the same time connect the other end of the high-pressure air pipe to an air compressor to inject high-speed and high-pressure gas; Step 2, when the high-speed and high-pressure gas is injected, the rubber locking air pressure cap connected to the inserted end of the high-pressure air pipe deforms, and the rubber locking air pressure cap opens and fits with the hole wall of the grouting hole. The inner wall of the cap head deflects the high-speed and high-pressure gas, and the gas is discharged from the orifice direction of the grouting hole. During the gas discharge process, the accumulated slag in the grouting hole near the rubber locking air pressure cap is discharged in the gas discharge direction; Step 3, slowly pull out the high-pressure air pipe from the grouting hole at a uniform speed, keep the rubber locking air pressure cap moving towards the orifice direction at a uniform speed, and keep the accumulated slag in the inner hole blown out from the deep hole discharged towards the orifice evenly. When the inserted end of the high-pressure air pipe moves from the inside of the hole to the orifice, the hole cleaning work is completed; After the high-speed and high-pressure gas is injected in Step 2, the tension limiting component can limit the maximum opening angle of the rubber locking air pressure cap; During the process of the rubber locking air pressure cap moving towards the orifice direction at a uniform speed in Step 3, the opened rubber locking air pressure cap can rub against the hole wall of the grouting hole, and bring out the accumulated slag that cannot be discharged by the high-speed and high-pressure gas attached to the hole wall.

2. The method for clearing a deep hole with a small aperture using high-pressure air according to claim 1, characterized in that: The tension limiting component is composed of a sliding collar, several opening limiting rods, and several cap head support skeletons. The sliding collar is sleeved on the inserted end of the high-pressure air pipe, and several opening limiting rods are arranged around the outer wall thereof at equal intervals. One end of the opening limiting rod is hinged to the outer wall of the sliding collar, and the other end is hinged to the cap head support skeleton. Several cap head support skeletons are evenly dispersed and attached to the inner wall of the rubber locking air pressure cap with the cone vertex of the conical cap body as the center, and are fixedly connected to the inner wall of the rubber locking air pressure cap.

3. The method for clearing holes with small diameters in deep holes using high-pressure air according to claim 2, wherein: The number of the opening limiting rods is greater than or equal to two, and the number of the cap head support skeletons is greater than or equal to two.

4. The method for clearing holes with small diameters in deep holes using high-pressure air according to claim 1, characterized in that: The high-pressure air pipe adopts a high-pressure steel air pipe.

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