Anti-sloughing hole protection casing pipe for geological drilling

Abstract

The invention belongs to the technical field of geological surveying and mapping, and particularly relates to a geological drilling hole collapse prevention wall protection sleeve which comprises a base mounting plate, a fixing plate is fixedly mounted on one side of the mounting plate, a positioning part is fixedly mounted on the other side of the fixing plate, and the positioning part comprises a first sealing cylinder, a second sealing cylinder and a third sealing cylinder. The first sealing cylinder, the second sealing cylinder and the third sealing cylinder are communicated, and the second sealing cylinder is arranged outside the first sealing cylinder in a sleeving mode; the telescopic positioning piece is arranged outside the drilling barrel in a sleeving mode, positioning can be provided for the moving direction of the drilling barrel in the rotating sampling process of the drilling barrel, and therefore the center line of the drilling barrel and the center line of the first sealing barrel, the center line of the second sealing barrel and the center line of the third sealing barrel are always located on the same horizontal line in the drilling sampling process of the drilling barrel; the drilling barrel is prevented from deviating in the sampling process to influence the sampling effect, so that the sampling quality of the device is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of geological surveying and mapping, in particular to a geological drilling hole collapse prevention wall protection casing. Background Art

[0002] During geological drilling, borehole stability is crucial for the smooth progress of subsequent operations. This is especially true in weak or loose formations, where borehole collapse is a common occurrence, leading to drilling delays, equipment damage, and even operational failure. Therefore, effectively preventing borehole collapse has always been a critical issue in geological drilling.

[0003] Traditional drilling collapse prevention technology primarily relies on the use of retaining wall casings. However, most existing retaining wall casings are complex to install, cannot effectively adapt to varying strata, and can easily cause pressure drops in the borehole. These limitations not only affect drilling efficiency but also increase project costs. Therefore, there is an urgent need for retaining wall casings that can adapt to complex geological conditions and provide efficient collapse prevention.

[0004] With the development of the economy, new rural areas have risen rapidly, and roads have changed their previous appearance. More and more concrete roads are being built at a rapid pace to provide convenience for travel. However, after the construction of concrete roads is completed, it increases the difficulty of geological surveying. During the drilling and sampling process, a large amount of dust will be generated, making the working environment poor and endangering the health of the workers. Therefore, technical personnel in this field provide a geological drilling anti-collapse wall casing to solve the problems raised in the above background technology. Summary of the Invention

[0005] The purpose of the present invention is to provide a geological drilling anti-collapse hole wall protection casing to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A geological drilling anti-collapse wall protection casing comprises a base mounting plate, a fixing plate fixedly mounted on one side of the mounting plate, and a positioning member fixedly mounted on the other side of the fixing plate, the positioning member comprising a first sealing cylinder, a second sealing cylinder and a third sealing cylinder, the first sealing cylinder, the second sealing cylinder and the third sealing cylinder being connected, a connecting port being provided on the outer wall, the second sealing cylinder being sleeved on the outside of the first sealing cylinder, the third sealing cylinder being sleeved on the outside of the second sealing cylinder, the second sealing cylinder being slidably connected to the first sealing cylinder, the third sealing cylinder being slidably connected to the outside of the second sealing cylinder, a sampling piece being fixedly mounted at the center of a side of the mounting plate away from the fixing plate, and a handle being provided above the sampling piece, the handle being fixedly mounted on one side of the mounting plate.

[0007] As a further solution of the present invention: the sampling component includes a drive motor and a drill barrel, the drive motor is electrically connected to an external power supply, the output end of the drive motor passes through the mounting plate, the fixing plate is fixedly connected to the drill barrel, and the drill barrel is located inside the first sealing barrel.

[0008] As a further solution of the present invention: the inner walls of the second sealing cylinder and the third sealing cylinder are both provided with a placement cavity, and the outer walls of the first sealing cylinder and the second sealing cylinder at one end away from the mounting plate are fixedly installed with a slider, and the slider is slidably connected to the inside of the placement cavity.

[0009] As a further solution of the present invention: an elastic member is fixedly installed inside the placement cavity, and the other end of the elastic member is fixedly connected to the slider.

[0010] As a further solution of the present invention: the elastic member includes an inner rod, an outer rod and a spring, the inner rod is slidably connected to the inside of the outer rod, and the spring is sleeved on the outside of the inner rod and the outer rod.

[0011] As a further solution of the present invention: a sealing ring is fixedly installed on one end of the first sealing cylinder and the second sealing cylinder away from the mounting plate, the first sealing cylinder is sealed connected to the second sealing cylinder through the sealing ring, and the second sealing cylinder is sealed connected to the third sealing cylinder through the sealing ring.

[0012] As a further solution of the present invention: a backing plate is fixedly installed on a side of the third sealing cylinder away from the second sealing cylinder.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, a retractable positioning member is provided on the outside of the drill barrel, which can provide positioning for the moving direction of the drill barrel during the sampling process of the drill barrel rotation. In this way, during the drilling sampling process, the center line of the drill barrel and the center lines of the first sealing cylinder, the second sealing cylinder and the third sealing cylinder are always on the same horizontal line, preventing the drill barrel from deviating during the sampling process and affecting the sampling effect, thereby ensuring the sampling quality of the device.

[0014] 2. In the present invention, a closed space can be formed between the first sealing cylinder, the second sealing cylinder and the third sealing cylinder and the wall or the ground, so that the drill tube can drill and sample in a closed space, so that the dust generated by the drill tube during the sampling process will not spread to the outside, thereby improving the dust-proof effect of the device. At the same time, the dust generated during the sampling process can be collected by the first sealing cylinder, the second sealing cylinder and the third sealing cylinder, which reduces the subsequent cleaning work of the user, making it more convenient for people to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of a geological drilling anti-collapse casing; Figure 2 A cross-sectional view of a geological drilling anti-collapse casing; Figure 3 This is a structural diagram of a positioning member in a geological drilling anti-collapse casing; Figure 4 This is a schematic diagram of the structure of an elastic part in a geological drilling anti-collapse wall casing.

[0016] In the figure: 1. Mounting plate; 11. Handle; 2. Fixing plate; 3. Positioning member; 31. First sealing cylinder; 311. Connecting port; 32. Second sealing cylinder; 33. Third sealing cylinder; 34. Sealing ring; 35. Placement cavity; 36. Slider; 37. Elastic member; 371. Inner rod; 372. Outer rod; 373. Spring; 4. Pad; 5. Sampling member; 51. Drive motor; 52. Drill barrel. DETAILED DESCRIPTION

[0017] See also Figures 1 to 4 In an embodiment of the present invention, a geological drilling anti-collapse wall casing includes a base mounting plate 1, a fixing plate 2 is fixedly installed on one side of the mounting plate 1, and a positioning member 3 is fixedly installed on the other side of the fixing plate 2, the positioning member 3 includes a first sealing cylinder 31, a second sealing cylinder 32 and a third sealing cylinder 33, the first sealing cylinder 31, the second sealing cylinder 32 and the third sealing cylinder 33 are connected, the outer wall of the first sealing cylinder 31 is provided with a connecting port 311, the second sealing cylinder 32 is sleeved on the outside of the first sealing cylinder 31, the third sealing cylinder 33 is sleeved on the outside of the second sealing cylinder 32, the second sealing cylinder 32 is slidably connected to the first sealing cylinder 31, and the third sealing cylinder 33 is slidably connected to the outside of the second sealing cylinder 32, a sampling piece 5 is fixedly installed at the center of one side of the mounting plate 1 away from the fixing plate 2, and a handle 11 is provided above the sampling piece 5, and the handle 11 is fixedly mounted on one side of the mounting plate 1.

[0018] In this solution, a retractable positioning member 3 is provided on the outside of the drill barrel 52 to provide positioning for the moving direction of the drill barrel 52 during the rotation sampling process of the drill barrel 52, so that during the drilling sampling process, the center line of the drill barrel 52 and the center lines of the first sealing cylinder 31, the second sealing cylinder 32 and the third sealing cylinder 33 are always on the same horizontal line, thereby ensuring the sampling quality of the device, and a closed space can be formed between the first sealing cylinder 31, the second sealing cylinder 32 and the third sealing cylinder 33 and the wall or the ground, so that the drill barrel 52 can perform drilling sampling in a closed space, so that the dust generated by the drill barrel 52 during the sampling process will not spread to the outside, thereby improving the dustproof effect of the device, and at the same time, the dust generated during the sampling process can be easily collected by the first sealing cylinder 31, the second sealing cylinder 32 and the third sealing cylinder 33, reducing the subsequent cleaning work of the user, making it more convenient for people to use.

[0019] exist Figure 1 Middle: A fixing plate 2 is fixedly installed on one side of the mounting plate 1, and a positioning member 3 is fixedly installed on the other side of the fixing plate 2. A sampling member 5 is fixedly installed at the center of the side of the mounting plate 1 away from the fixing plate 2, and a handle 11 is provided above the sampling member 5. The handle 11 is fixedly installed on one side of the mounting plate 1. When sampling the wall or the ground, the handle 11 is manually gripped to drive the device to move along the inside of the concrete, thereby driving the sampling member 5 to sample the concrete. A pad 4 is fixedly installed on the side of the third sealing cylinder 33 away from the second sealing cylinder 32 to increase the contact area between the third sealing cylinder 33 and the concrete surface to prevent the third sealing cylinder 33 from having a small contact area with the concrete surface and a large pressure, thereby causing damage to the concrete.

[0020] exist Figure 2 Middle: The sampling component 5 includes a drive motor 51 and a drill barrel 52. The drive motor 51 is electrically connected to an external power supply. The output end of the drive motor 51 passes through the mounting plate 1, the fixing plate 2 and is fixedly connected to the drill barrel 52. The drill barrel 52 is located inside the first sealing tube 31.

[0021] exist Figure 3The outer wall of the first sealing cylinder 31 is provided with a connecting port 311, which can be connected to an external dust collecting device. When the sampling amount is large and the dust is large, the dust can be transported to the outside through the connecting port 311. The second sealing cylinder 32 is sleeved on the outside of the first sealing cylinder 31, and the third sealing cylinder 33 is sleeved on the outside of the second sealing cylinder 32. The second sealing cylinder 32 is slidably connected to the first sealing cylinder 31, and the third sealing cylinder 33 is slidably connected to the outside of the second sealing cylinder 32 to press the positioning member 3 against the concrete. Since the positioning member 3 is retractable, when manually pressed downward, the third sealing cylinder 33 slides toward the inside of the second sealing cylinder 32 through the slider 36, and the second sealing cylinder 32 is received in the inside of the first sealing cylinder 31 through the slider 36, thereby realizing the contraction of the positioning member 3, and the second sealing cylinder 32 and the third sealing cylinder are connected. The inner wall of the cylinder 33 is provided with a placement cavity 35, and the outer wall of the first sealing cylinder 31 and the second sealing cylinder 32 at one end away from the mounting plate 1 is fixedly installed with a slider 36, and the slider 36 is slidably connected to the inside of the placement cavity 35. The placement cavity 35 is used to place an elastic member 37, providing space for the installation of the elastic member 37, and the first sealing cylinder 31 and the second sealing cylinder 32 at one end away from the mounting plate 1 are fixedly installed with a sealing ring 34, the first sealing cylinder 31 is sealedly connected to the second sealing cylinder 32 through the sealing ring 34, and the second sealing cylinder 32 is sealedly connected to the third sealing cylinder 33 through the sealing ring 34. Since the first sealing cylinder 31 and the second sealing cylinder 32 at one end away from the mounting plate 1 are fixedly installed with the sealing ring 34, a closed space can be formed between the first sealing cylinder 31, the second sealing cylinder 32 and the third sealing cylinder 33 and the wall or the ground, so that the drill tube 52 can perform drilling sampling in a closed space, so that the dust generated by the drill tube 52 during the sampling process will not spread to the outside, thereby improving the sealing performance of the positioning member 3.

[0022] exist Figure 4In the middle: an elastic member 37 is fixedly installed inside the placement chamber 35, and the other end of the elastic member 37 is fixedly connected to the slider 36. The elastic member 37 includes an inner rod 371, an outer rod 372 and a spring 373. The inner rod 371 is slidably connected to the inside of the outer rod 372, and the spring 373 is sleeved on the outside of the inner rod 371 and the outer rod 372. Under the action of the spring 373 inside the elastic member 37, the positioning member 3 is always in an expanded state when no force is applied. After sampling is completed, under the action of the spring 373, the first sealing cylinder 31, the second sealing cylinder 32 and the third sealing cylinder 33 return to their original states. When the drill tube 52 moves for sampling, the first sealing cylinder 31, the second sealing cylinder 32 and the third sealing cylinder 33 contract, and the slider 36 can squeeze the spring 373 to provide a buffer for the contraction of the positioning member 3. In the process of contraction of the positioning member 3, the inner rod 371 slides inside the outer rod 372 to provide a guide function for the compression direction of the spring 373.

[0023] The working principle of the present invention is as follows: when sampling a wall or the ground, the handle 11 is manually gripped to press the positioning member 3 against the concrete. Since the positioning member 3 is retractable, when the positioning member 3 is manually pressed downward, the third sealing cylinder 33 slides toward the inside of the second sealing cylinder 32 through the slider 36, and the second sealing cylinder 32 is received into the inside of the first sealing cylinder 31 through the slider 36, thereby realizing the contraction of the positioning member 3 until the drill barrel 52 is pressed tightly against the surface of the concrete. Then, the driving motor 51 is started to drive the drill barrel 52 to rotate. Then, the driving motor 51 is manually pressed downward to drive the drill barrel 52 to move toward the inside of the concrete, thereby performing the sampling operation. During the rotation sampling process of the drill barrel 52, the first sealing cylinder 31, the second sealing cylinder 32 and the third sealing cylinder 33 can provide positioning for the moving direction of the drill barrel 52, so that during the drilling sampling process, the center line of the drill barrel 52 is aligned with the first sealing cylinder 33. The center lines of the sealing cylinder 31, the second sealing cylinder 32 and the third sealing cylinder 33 are always on the same horizontal line, preventing the drill cylinder 52 from deviating during the sampling process and affecting the sampling effect, thereby ensuring the sampling quality of the device, and the first sealing cylinder 31 and the second sealing cylinder 32 are fixedly installed with a sealing ring 34 at one end away from the mounting plate 1, so that a closed space can be formed between the first sealing cylinder 31, the second sealing cylinder 32 and the third sealing cylinder 33 and the wall or the ground, so that the drill cylinder 52 can drill and sample in a closed space, so that the dust generated by the drill cylinder 52 during the sampling process will not spread to the outside, thereby improving the dust-proof effect of the device. At the same time, the first sealing cylinder 31, the second sealing cylinder 32 and the third sealing cylinder 33 can be used to collect the dust generated during the sampling process, reducing the subsequent cleaning work of the user, making it more convenient for people to use.

[0024] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A geological drilling anti-collapse casing, comprising a base mounting plate (1), characterized in that: A fixing plate (2) is fixedly installed on one side of the mounting plate (1), and a positioning member (3) is fixedly installed on the other side of the fixing plate (2), the positioning member (3) includes a first sealing cylinder (31), a second sealing cylinder (32) and a third sealing cylinder (33), the first sealing cylinder (31), the second sealing cylinder (32) and the third sealing cylinder (33) are connected, the outer wall of the first sealing cylinder (31) is provided with a connection port (311), the second sealing cylinder (32) is sleeved on the outside of the first sealing cylinder (31), the third sealing cylinder (33) is sleeved on the outside of the second sealing cylinder (32), the second sealing cylinder (32) is slidably connected to the first sealing cylinder (31), and the third sealing cylinder (33) is slidably connected to the outside of the second sealing cylinder (32), a sampling member (5) is fixedly installed at the center of one side of the mounting plate (1) away from the fixing plate (2), and a handle (11) is provided above the sampling member (5), and the handle (11) is fixedly installed on one side of the mounting plate (1).

2. A geological drilling anti-collapse casing according to claim 1, characterized in that: The sampling member (5) comprises a driving motor (51) and a drill barrel (52), wherein the driving motor (51) is electrically connected to an external power source, and an output end of the driving motor (51) passes through the mounting plate (1), the fixing plate (2) and is fixedly connected to the drill barrel (52), and the drill barrel (52) is located inside the first sealing cylinder (31).

3. A geological drilling anti-collapse casing according to claim 2, characterized in that: The inner walls of the second sealing cylinder (32) and the third sealing cylinder (33) are both provided with a placement cavity (35), and the outer walls of the first sealing cylinder (31) and the second sealing cylinder (32) at one end away from the mounting plate (1) are both fixedly mounted with a slider (36), and the slider (36) is slidably connected to the interior of the placement cavity (35).

4. A geological drilling anti-collapse casing according to claim 3, characterized in that: An elastic member (37) is fixedly installed inside the placement cavity (35), and the other end of the elastic member (37) is fixedly connected to the slider (36).

5. The geological drilling anti-collapse casing according to claim 4, characterized in that: The elastic member (37) comprises an inner rod (371), an outer rod (372) and a spring (373); the inner rod (371) is slidably connected to the inside of the outer rod (372), and the spring (373) is sleeved on the outside of the inner rod (371) and the outer rod (372).

6. A geological drilling hole collapse prevention casing according to claim 5, characterized in that: A sealing ring (34) is fixedly mounted on one end of the first sealing cylinder (31) and the second sealing cylinder (32) away from the mounting plate (1); the first sealing cylinder (31) is sealedly connected to the second sealing cylinder (32) via the sealing ring (34); and the second sealing cylinder (32) is sealedly connected to the third sealing cylinder (33) via the sealing ring (34).

7. The geological drilling hole collapse prevention casing according to claim 1, characterized in that: A backing plate (4) is fixedly mounted on a side of the third sealing cylinder (33) away from the second sealing cylinder (32).

Images