A high-pressure air anchor cable hole cleaning device

Abstract

The utility model provides a high pressure wind anchor cable hole cleaning device, including main pipe, main pipe is constituted by upper main pipe and lower main pipe, the upper end part of upper main pipe is equipped with two branch pipes, branch pipe is linked with water pipe, high pressure air pipe respectively, be equipped with first valve between branch pipe and water pipe, be equipped with second valve between branch pipe and high pressure air pipe, the lower end part of lower main pipe is equipped with lower air outlet, the circumferential side of lower main pipe is equipped with a plurality of reverse air outlet from lower to upper, upper main pipe and lower main pipe pass through screw thread connection. The utility model discloses when using external force to the hole outside reverse pull, under the reverse flushing effect of multistage reverse air outlet, can carry out reverse flushing to anchor cable hole bottom and anchor cable hole wall, the residue in the deep place of anchor cable hole and hole wall dust are taken out the hole outside, and this device improves anchor cable hole cleaning efficiency, and the cleaning effect is remarkable. The utility model discloses simple production, convenient to use, has improved construction speed, has guaranteed rock mass reinforcement, has improved engineering quality, has increased the economic benefit of construction unit simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy and hydropower construction technology, specifically to a high-pressure wind anchor cable hole cleaning device. Background Technology

[0002] In rock fissure reinforcement construction, anchor cables are used to reinforce the rock mass, transferring the force of unstable rock to stable rock mass. After the anchor cable holes are drilled, they need to be cleaned before installation to ensure that the cement grout in the anchoring section adheres tightly to the hole wall. Currently, in existing projects, high-pressure air is often used to blow dust and fine stone debris out of the hole wall, thus ensuring the cleanliness of the hole wall. However, given the considerable depth of the anchor cable holes, stone debris and dust residue remain at the bottom and on the hole wall after high-pressure air cleaning, which affects the bonding effect of the anchoring section.

[0003] Existing technologies mostly use high-pressure air through steel pipes to blow dust and fine stone debris out of the anchor cable hole wall, thereby ensuring the cleanliness of the hole wall. However, it is quite difficult to thoroughly clean the residue and dust inside anchor cable holes with greater depth. Utility Model Content

[0004] The main objective of this invention is to provide a high-pressure air anchor cable hole cleaning device, which aims to effectively solve the problems in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-pressure air anchor cable hole cleaning device includes a main pipe, which consists of an upper main pipe and a lower main pipe. The upper end of the upper main pipe is provided with two branch pipes, which are respectively connected to a water pipe and a high-pressure air pipe. A first valve is provided between the branch pipe and the water pipe, and a second valve is provided between the branch pipe and the high-pressure air pipe. The lower end of the lower main pipe is provided with a lower air outlet, and multiple reverse air outlets are provided on the periphery of the lower main pipe from bottom to top. The upper main pipe and the lower main pipe are connected by threads.

[0007] While adopting the above technical solutions, this utility model may also adopt or combine the following technical solutions:

[0008] As a preferred technical solution of this utility model: the lower air outlet is a truncated cone that is larger at the top and smaller at the bottom, and the lower end of the truncated cone has a vertical bottom hole and peripheral holes arranged around the bottom hole.

[0009] As a preferred technical solution of this utility model: the distance between any two adjacent reverse air outlets is the same.

[0010] As a preferred technical solution of this utility model: the reverse air outlet has evenly arranged air outlet holes on the periphery of the lower main pipe, a small outer diameter reverse air guide ring is welded to the upper edge of the air outlet hole, and a large outer diameter reverse air guide ring is welded to the lower edge of the air outlet hole. The space between the small outer diameter reverse air guide ring and the large outer diameter reverse air guide ring forms a reverse air outlet channel.

[0011] As a preferred technical solution of this utility model: the lower main pipe is provided with a plurality of centering brackets, and the centering brackets are welded to the lower main pipe.

[0012] As a preferred technical solution of this utility model: the outer diameter of the centering bracket is larger than the outer diameter of the large outer diameter reverse wind guide ring.

[0013] As a preferred technical solution of this utility model: an extension connector is provided between the upper tube and the lower tube, and the extension connector is connected to the upper tube and the lower tube by threads.

[0014] This invention provides a high-pressure air anchor cable hole cleaning device with the following advantages: When external force is used to pull the hole outwards, the device, under the reverse flushing action of multi-stage reverse air outlets, can reverse flush the bottom and wall of the anchor cable hole, removing residue and dust from deep within the hole. This device improves the cleaning efficiency of the anchor cable hole and has a significant cleaning effect. On-site, the two valves on the main pipe can be adjusted according to the actual situation, allowing for either water washing or air washing, or both simultaneously, effectively reducing dust pollution during hole cleaning. Furthermore, extension connectors can be added or removed according to the depth of the anchor cable holes in the project. This invention is simple to manufacture, easy to use, requires no special materials, improves construction speed, ensures rock mass reinforcement, enhances project quality, and increases the economic benefits for construction units. Attached Figure Description

[0015] Figure 1 A schematic diagram of the high-pressure air anchor cable hole cleaning device provided by this utility model;

[0016] Figure 2 A schematic diagram of the extension connector;

[0017] Figure 3 This is a schematic diagram of the lower air outlet;

[0018] Figure 4 This is a schematic diagram of a reverse air outlet;

[0019] In the diagram: 1-Main pipe; 11-Upper main pipe; 12-Lower main pipe; 2-Water pipe; 3-High-pressure air pipe; 41-First valve; 42-Second valve; 5-Lower air outlet; 51-Bottom hole; 52-Peripheral hole; 6-Reverse air outlet; 61-Air outlet; 62-Small outer diameter reverse air guide ring; 63-Large outer diameter reverse air guide ring; 7-Centering bracket; 8-Extending connector. Detailed Implementation

[0020] The present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

[0021] like Figure 1-4 As shown, a high-pressure air anchor cable hole cleaning device includes a galvanized steel main pipe 1, which consists of an upper main pipe 11 and a lower main pipe 12. The upper end of the upper main pipe 11 is provided with two branch pipes, which are respectively connected to a water pipe 2 and a high-pressure air pipe 3. A first valve 41 is provided between the branch pipe and the water pipe 2, and a second valve 42 is provided between the branch pipe and the high-pressure air pipe 3. The lower end of the lower main pipe 12 is provided with a lower air outlet 5. Multiple reverse air outlets 6 are provided on the periphery of the lower main pipe 12 from bottom to top to ensure that the main pipe 1 is centered in the anchor cable hole. The upper main pipe 11 and the lower main pipe 12 are connected by threads. The bottom of the upper main pipe 11 is provided with an internal thread that engages with the external thread at the end of the lower main pipe 12, and can be installed and disassembled by twisting.

[0022] The lower air outlet 5 is a truncated cone that is larger at the top and smaller at the bottom. A vertical bottom hole 51 and peripheral holes 52 arranged around the bottom hole 51 are provided at the lower end of the truncated cone for cleaning the residue at the bottom of the hole. The bottom hole 51 is located on the surface of the truncated cone and at the center of the busbar. The peripheral holes 52 are evenly arranged around the bottom hole 51.

[0023] The spacing between any two adjacent reverse air outlets is the same.

[0024] The reverse air outlet 6 has evenly arranged air outlet holes 61 on the sides of the lower main pipe 12, so that the high-pressure air is sprayed out evenly in all directions. The upper edge of the air outlet 61 is welded with a small outer diameter reverse air guide plate ring 62, and the lower edge of the air outlet 61 is welded with a large outer diameter reverse air guide plate ring 63. The space between the small outer diameter reverse air guide plate ring 62 and the large outer diameter reverse air guide plate ring 63 forms a reverse air outlet channel. The small outer diameter reverse air guide plate ring 62 and the large outer diameter reverse air guide plate ring 63 form a 45° angle with the anchor cable hole wall.

[0025] A reverse air outlet 6 is arranged on the lower air outlet 5 of the main pipe 1.

[0026] The lower main pipe 12 is equipped with multiple centering supports 7, which are welded to the lower main pipe 12.

[0027] The outer diameter of the center support 7 is larger than the outer diameter of the large outer diameter reverse wind guide ring 63.

[0028] An extension connector 8 is provided between the upper main pipe 11 and the lower main pipe 12. The extension connector 8 is made of galvanized steel pipe with the same specifications as the main pipe 1 and is used to increase or decrease the length of the main pipe 1 according to the change of hole depth. The extension connector 8 is connected to the upper main pipe 11 and the lower main pipe 12 by threads. One end of the extension connector 8 is provided with an external thread that matches the internal thread at the bottom of the upper main pipe 11, and the other end of the extension connector 8 is provided with an internal thread that matches the external thread at the end of the lower main pipe 12.

[0029] The two valves (first valve 41 and second valve 42) of the main pipe 1 can be adjusted according to the actual situation to select water washing or air washing, or both can be used at the same time, which can effectively reduce dust pollution during hole cleaning.

[0030] Specifically, the construction of anchor cable support for underground caverns in pumped storage power stations will be used as an example:

[0031] The sidewall was supported by 20m long, Ф165mm prestressed anchor cables. A pneumatic rock drill was used to drill the holes. After drilling, rock powder and 5mm-15mm gravel were left at the bottom of the holes. To facilitate on-site construction, Ф50mm galvanized steel pipes were used for the main pipe according to the site conditions. The outer diameter of the reverse air outlet was 75mm, and the outer diameter of the centering support was 110mm. The main pipe and extension connectors were all 3m long. After splicing on site, the total length met the site requirements.

[0032] The high-pressure air anchor cable hole cleaning device is manually inserted into the anchor cable hole until it reaches the bottom. Then, the high-pressure air pipe and water pipe are turned on to reduce dust. Once air is blowing out of the hole, the device is first repeatedly pulled out to clean the bottom debris. After the air is evenly distributed, the anchor cable hole cleaning device is slowly pulled out to remove the debris and rock powder. If necessary, the above steps can be repeated to ensure that the cleanliness of the hole wall meets the design requirements.

[0033] The above specific embodiments are used to explain and illustrate the present utility model, and are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made to the present utility model within the spirit and protection scope of the claims shall fall within the protection scope of the present utility model.

Claims

1. A high-pressure air anchor cable hole cleaning device, characterized in that: Includes a main pipe (1), which is composed of an upper main pipe (11) and a lower main pipe (12). The upper end of the upper main pipe (11) is provided with two branch pipes, which are respectively connected to a water pipe (2) and a high-pressure air pipe (3). A first valve (41) is provided between the branch pipe and the water pipe (2), and a second valve (42) is provided between the branch pipe and the high-pressure air pipe (3). The lower end of the lower main pipe (12) is provided with a lower air outlet (5). The periphery of the lower main pipe (12) is provided with multiple reverse air outlets (6) from bottom to top. The upper main pipe (11) and the lower main pipe (12) are connected by threads.

2. The high-pressure wind anchor cable hole cleaning device according to claim 1, characterized in that: The lower air outlet (5) is a truncated cone with a larger upper part and a smaller lower part. The lower end of the truncated cone has a vertical bottom hole (51) and peripheral holes (52) arranged around the bottom hole (51).

3. The high-pressure air anchor cable hole cleaning device according to claim 1, characterized in that: The distance between any two adjacent reverse air outlets (6) is the same.

4. The high-pressure air anchor cable hole cleaning device according to claim 1, characterized in that: The reverse air outlet (6) has evenly arranged air outlet holes (61) on the periphery of the lower main pipe (12). A small outer diameter reverse air guide ring (62) is welded to the upper edge of the air outlet (61), and a large outer diameter reverse air guide ring (63) is welded to the lower edge of the air outlet (61). The space between the small outer diameter reverse air guide ring (62) and the large outer diameter reverse air guide ring (63) forms a reverse air outlet channel.

5. The high-pressure air anchor cable hole cleaning device according to claim 1, characterized in that: The lower main pipe (12) is provided with a plurality of centering brackets (7), which are welded to the lower main pipe (12).

6. The high-pressure wind anchor cable hole cleaning device according to claim 1, characterized in that: An extension connector (8) is provided between the upper main pipe (11) and the lower main pipe (12), and the extension connector (8) is connected to the upper main pipe (11) and the lower main pipe (12) by means of threads.

Images