Geotechnical engineering investigation drilling hole wall protection device

Abstract

The utility model relates to the technical field of geotechnical engineering reconnaissance, and discloses a geotechnical engineering reconnaissance drilling hole wall protection device which comprises a supporting rod, four protection mechanisms are symmetrically arranged on the outer surface of the supporting rod, a supporting plate is installed at one end of each protection mechanism, a protection plate is installed on the surface of one side of the supporting plate, and the protection plate is arranged on the surface of the other side of the supporting plate. The upper and lower ends of the surface of the side, close to the supporting plate, of the protection plate are provided with inserting rods, and the upper and lower ends of the surface of the side, away from the protection plate, of the supporting plate are provided with positioning mechanisms. The protection mechanism is arranged, an electromagnet in the protection mechanism is electrified to attract an iron block, so that a supporting plate drives a protection plate to be attached to the inner wall of a drill hole to protect the drill hole, collapse and deformation of the hole wall are avoided, a second clamping strip in the positioning mechanism is clamped with a first clamping strip, an insertion rod is fixed, and therefore the protection plate is fixed; and the pull rod is pulled outwards to drive the second clamping strip to be away from the first clamping strip, so that the protection plate is convenient to detach, and the worn protection plate is convenient to replace.

Description

Technical Field

[0001] The utility model relates to the technical field of geotechnical engineering investigation, in particular to a geotechnical engineering investigation drilling hole wall protection device. Background Art

[0002] Geotechnical engineering investigation is an indispensable part of civil engineering construction, and drilling is one of the important means of investigation. During the drilling process, due to the complex and changeable geological conditions, the hole wall often collapses, deforms, and falls off, which not only affects the smooth progress of drilling, but may also cause errors in the investigation results.

[0003] A Chinese patent discloses a device for protecting the borehole wall in geotechnical engineering exploration (authorization announcement number CN219910631U). The patent technology sets a protection mechanism, drives the metal block to move to the right through the magnetic block at the right end, so that the two sets of sliding blocks move relative to each other, so that the TV probe can detect the internal situation of the hole wall through the empty slot on the rotating disk, and protect the TV probe through the sliding block to prevent the brush from sticking the soil to the TV probe again, thereby improving the protection effect;

[0004] However, it has certain disadvantages: the arc plate that plays a role in protecting the hole wall is easily worn and thinned after long-term use, and the arc plate is fixed together with the fixing block, so it is not convenient to disassemble and replace it. Utility Model Content

[0005] The purpose of the utility model is to provide a geotechnical engineering exploration drilling hole wall protection device to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A device for protecting the wall of a drilling hole in geotechnical engineering investigation comprises a support rod, a drill bit is installed at the lower end of the support rod, and four protection mechanisms are symmetrically arranged on the outer surface of the support rod, connecting pipes are installed on the upper and lower sides of the outer surface of the support rod located at the protection mechanism, and a connecting rod is slidably connected inside the connecting pipe, a support plate is installed at one end of the protection mechanism, a protection plate is installed on one side surface of the support plate, an insertion rod is installed at both upper and lower ends of a side surface of the protection plate close to the support plate, a plurality of first clips are installed on the upper surface of the insertion rod, and a positioning mechanism is provided at both upper and lower ends of a side surface of the support plate away from the protection plate.

[0008] As a further solution of the utility model: the protection mechanism includes a connecting seat, a slide plate is slidably connected to the inside of the connecting seat, a first spring is installed on one side surface of the slide plate, and an iron block is installed on the other side surface of the slide plate, a sliding rod is installed on one side surface of the slide plate located outside the iron block, a push rod is installed on one end of the sliding rod, and an electromagnet is installed on the inner surface of the connecting seat away from the first spring.

[0009] As a further solution of the utility model: the positioning mechanism includes a fixed plate, a fixed seat is installed on the upper surface of the fixed plate, a lifting plate is slidably connected to the inner side of the fixed seat, a first pull rod is installed on the upper surface of the lifting plate, and a second spring is installed on the upper surface of the lifting plate located on the outside of the first pull rod, a second pull rod is installed on the lower surface of the lifting plate, a positioning plate is installed at the lower end of the second pull rod, and a plurality of second clips are installed on the lower surface of the positioning plate.

[0010] As a further solution of the utility model: one end of the connecting rod is connected to the support plate, and the insertion rod movably passes through the support plate.

[0011] As a further solution of the utility model: one end of the connecting seat away from the push rod is installed on a side surface of the support rod, one end of the first spring is installed on an inner side surface of the connecting seat, the sliding rod movably passes through one side surface of the connecting seat, one end of the push rod is connected to the support plate, and the iron block is opposite to the electromagnet.

[0012] As a further solution of the utility model: the rear end of the fixed plate is installed on one side surface of the support plate, the upper end of the first pull rod movably passes through the fixed seat, the upper end of the second spring is connected to the fixed seat, the second pull rod movably passes through the fixed plate, and the second clamping strip fits with the first clamping strip.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model is provided with a protection mechanism. The electromagnet in the protection mechanism is energized to attract the iron block, so that the push rod moves outward to push the support plate. The support plate drives the protection plate to fit the inner wall of the drill hole to protect it, thereby preventing the hole wall from collapsing and deforming.

[0015] 2. The utility model is provided with a positioning mechanism, in which the second clamping strip in the positioning mechanism engages with the first clamping strip, so that the insertion rod is fixed, thereby fixing the protective plate. Pulling the pull rod outward drives the second clamping strip away from the first clamping strip, making it easy to disassemble the protective plate and replace the worn protective plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a geotechnical engineering exploration drilling hole wall protection device;

[0017] Figure 2 for Figure 1 A magnified view of middle;

[0018] Figure 3 It is a partial cross-sectional view of a geotechnical engineering exploration drilling hole wall protection device;

[0019] Figure 4 It is a structural schematic diagram of a support plate in a geotechnical engineering exploration drilling hole wall protection device;

[0020] Figure 5 It is a cross-sectional view of a protection mechanism in a drilling hole wall protection device for geotechnical engineering investigation;

[0021] Figure 6 for Figure 4 Enlarged view of middle B;

[0022] Figure 7 It is a structural schematic diagram of a positioning mechanism in a drilling hole wall protection device for geotechnical engineering investigation;

[0023] Figure 8 The present invention is a schematic diagram of the structure of a second pull rod in a drilling hole wall protection device for geotechnical engineering investigation.

[0024] In the figure: 1. support rod; 2. drill bit; 3. protection mechanism; 4. connecting seat; 5. slide plate; 6. first spring; 7. iron block; 8. slide rod; 9. push rod; 10. electromagnet; 11. connecting pipe; 12. connecting rod; 13. support plate; 14. protection plate; 15. plug rod; 16. first clamping strip; 17. positioning mechanism; 18. fixing plate; 19. fixing seat; 20. lifting plate; 21. first pull rod; 22. second spring; 23. second pull rod; 24. positioning plate; 25. second clamping strip. DETAILED DESCRIPTION

[0025] See also Figures 1 to 5In the embodiment of the utility model, a protective device for the wall of a drilling hole in geotechnical engineering survey comprises a support rod 1, a drill bit 2 is installed at the lower end of the support rod 1, and four protective mechanisms 3 are symmetrically arranged on the outer surface of the support rod 1, the protective mechanism 3 comprises a connecting seat 4, a slide plate 5 is slidably connected inside the connecting seat 4, a first spring 6 is installed on one side surface of the slide plate 5, one end of the first spring 6 is installed on one side surface of the inner side of the connecting seat 4, an iron block 7 is installed on the other side surface of the slide plate 5, a slide bar 8 is installed on one side surface of the slide plate 5 located on the outer side of the iron block 7, and the slide bar 8 movably passes through one side surface of the connecting seat 4, A push rod 9 is installed at one end of the slide rod 8, and an end of the connecting seat 4 away from the push rod 9 is installed on a side surface of the support rod 1, an electromagnet 10 is installed on the inner surface of the connecting seat 4 away from the first spring 6, and the iron block 7 is directly opposite to the electromagnet 10. The outer surface of the support rod 1 is located on both the upper and lower sides of the protection mechanism 3 and is installed with a connecting pipe 11, and the inner part of the connecting pipe 11 is slidably connected with a connecting rod 12, and a support plate 13 is installed at one end of the protection mechanism 3, one end of the push rod 9 is connected to the support plate 13, one end of the connecting rod 12 is connected to the support plate 13, and a protection plate 14 is installed on one side surface of the support plate 13;

[0026] The upper end of the support rod 1 is connected to a driving device, such as a motor, to drive the drill bit 2 to rotate, and the drill bit 2 is used to drill holes in the geotechnical exploration area;

[0027] The ends of the four protection mechanisms 3 are all equipped with support plates 13, and the four support plates 13 are all arc-shaped plates, which form a cylinder when they are attached to each other, which is the initial state;

[0028] When the electromagnet 10 is energized, the iron block 7 is attracted, and the slide plate 5 and the slide rod 8 will drive the push rod 9 to move outward, and the push rod 9 will drive the support plate 13 to move outward, so as to fit closely to the hole wall, support the hole wall, and prevent the hole wall from collapsing and deforming.

[0029] exist Figure 1 , Figure 4 , Figures 6 to 8Middle: A plug rod 15 is installed at both upper and lower ends of the surface of one side of the protection plate 14 close to the support plate 13. The plug rod 15 movably penetrates the support plate 13. A plurality of first clips 16 are installed on the upper surface of the plug rod 15. A positioning mechanism 17 is provided at both upper and lower ends of the surface of one side of the support plate 13 away from the protection plate 14. The positioning mechanism 17 includes a fixing plate 18. The rear end of the fixing plate 18 is installed on the surface of one side of the support plate 13. A fixing seat 19 is installed on the upper surface of the fixing plate 18. A lifting plate 20 is slidably connected to the inner side of the fixing seat 19. The lifting plate 20 is slidably connected to the inner side of the fixing seat 19. A first pull rod 21 is installed on the upper surface of the plate 20, and the upper end of the first pull rod 21 movably penetrates the fixed seat 19. A second spring 22 is installed on the upper surface of the lifting plate 20, located outside the first pull rod 21, and the upper end of the second spring 22 is connected to the fixed seat 19. A second pull rod 23 is installed on the lower surface of the lifting plate 20, and the second pull rod 23 movably penetrates the fixed plate 18. A positioning plate 24 is installed on the lower end of the second pull rod 23, and a plurality of second clips 25 are installed on the lower surface of the positioning plate 24, and the second clips 25 fit the first clips 16;

[0030] The insertion rod 15 on the protection plate 14 and the first clamping strip 16 on the insertion rod 15 are both movable through the support plate 13, and the first clamping strip 16 engages with the second clamping strip 25 to fix the insertion rod 15; when the first pull rod 21 is pulled away from the insertion rod 15, the positioning plate 24 will drive the second clamping strip 25 away from the first clamping strip 16, so that the protection plate 14 can be removed for replacement.

[0031] The working principle of the utility model is: when in use, the upper end of the support rod 1 is connected to the motor, and the motor is turned on to drive the support rod 1 and the drill bit 2 to rotate, so as to perform drilling processing in the geotechnical exploration area; when the lower ends of the support plate 13 and the protective plate 14 begin to enter the drill hole, the electromagnet 10 is turned on, the electromagnet 10 attracts the iron block 7, and the slide plate 5 drives the push rod 9 to move outward through the slide rod 8, and the push rod 9 drives the support plate 13 to open, thereby driving the protective plate 14 to fit the drill hole and protect the drill hole; the protective plate 14 will be worn thin after long-term use and needs to be replaced. The user can pull the first pull rod 21 in the direction away from the insertion rod 15, the first pull rod 21 pulls the lifting plate 20, the lifting plate 20 pulls the second pull rod 23, the second pull rod 23 pulls the positioning plate 24, and the positioning plate 24 will drive the second clamping strip 25 away from the first clamping strip 16, so that the protective plate 14 can be disassembled for replacement.

[0032] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A geotechnical engineering exploration drilling hole wall protection device, comprising a support rod (1), a drill bit (2) is installed at the lower end of the support rod (1), and four protection mechanisms (3) are symmetrically arranged on the outer surface of the support rod (1), and the outer surface of the support rod (1) is provided with connecting pipes (11) on both the upper and lower sides of the protection mechanism (3), and the interior of the connecting pipe (11) is slidably connected with a connecting rod (12), a support plate (13) is installed at one end of the protection mechanism (3), and a protection plate (14) is installed on one side surface of the support plate (13), characterized in that: Insertion rods (15) are installed at both upper and lower ends of a side surface of the protection plate (14) close to the support plate (13), and a plurality of first clamping strips (16) are installed on the upper surface of the insertion rod (15). Positioning mechanisms (17) are provided at both upper and lower ends of a side surface of the support plate (13) away from the protection plate (14).

2. A geotechnical engineering exploration drilling hole wall protection device according to claim 1, characterized in that: The protection mechanism (3) comprises a connecting seat (4), a slide plate (5) is slidably connected inside the connecting seat (4), a first spring (6) is installed on one side surface of the slide plate (5), and an iron block (7) is installed on the other side surface of the slide plate (5), a slide bar (8) is installed on one side surface of the slide plate (5) located outside the iron block (7), a push rod (9) is installed on one end of the slide bar (8), and an electromagnet (10) is installed on the side surface of the connecting seat (4) away from the first spring (6).

3. A geotechnical engineering exploration drilling hole wall protection device according to claim 1, characterized in that: The positioning mechanism (17) comprises a fixed plate (18), a fixed seat (19) is installed on the upper surface of the fixed plate (18), a lifting plate (20) is slidably connected to the inner side of the fixed seat (19), a first pull rod (21) is installed on the upper surface of the lifting plate (20), and a second spring (22) is installed on the upper surface of the lifting plate (20) located on the outer side of the first pull rod (21), a second pull rod (23) is installed on the lower surface of the lifting plate (20), a positioning plate (24) is installed at the lower end of the second pull rod (23), and a plurality of second clips (25) are installed on the lower surface of the positioning plate (24).

4. A geotechnical engineering exploration drilling hole wall protection device according to claim 1, characterized in that: One end of the connecting rod (12) is connected to the supporting plate (13), and the inserting rod (15) movably penetrates the supporting plate (13).

5. A geotechnical engineering exploration drilling hole wall protection device according to claim 2, characterized in that: One end of the connecting seat (4) away from the push rod (9) is installed on a side surface of the support rod (1), one end of the first spring (6) is installed on an inner side surface of the connecting seat (4), the sliding rod (8) movably passes through the side surface of the connecting seat (4), one end of the push rod (9) is connected to the support plate (13), and the iron block (7) is opposite to the electromagnet (10).

6. A geotechnical engineering exploration drilling hole wall protection device according to claim 3, characterized in that: The rear end of the fixing plate (18) is mounted on a side surface of the supporting plate (13); the upper end of the first pull rod (21) movably passes through the fixing seat (19); the upper end of the second spring (22) is connected to the fixing seat (19); the second pull rod (23) movably passes through the fixing plate (18); and the second clamping strip (25) fits into the first clamping strip (16).

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