Soil drilling equipment for geological survey

Abstract

The utility model provides soil drilling equipment for geological survey, which comprises a base, a soil nail, a limiting cylinder, a mounting rack and an adjusting mechanism, the mounting rack is provided with a handle and a guide post, the limiting cylinder is provided with a limiting hole for the guide post to be slidably mounted, the mounting rack is provided with an output shaft driven by a motor to rotate, one end of the output shaft is detachably provided with a sampling cylinder, and the other end of the output shaft is provided with an adjusting mechanism. The base is fixed on the ground through soil nails, a guide column on the mounting frame is inserted into a limiting hole and is matched with an adjusting mechanism to adjust the angle position of a limiting cylinder, after the angle position of the limiting cylinder is fixed, a motor drives a sampling cylinder to rotate through an output shaft, and a worker drives the mounting frame through a handle to drive the guide column to move downwards along the limiting hole; in other words, the limiting hole in the limiting barrel plays a guiding role on the guide column, it is guaranteed that the sampling barrel can conduct sampling work in the set direction, the angle adjusting and guiding functions of sampling work are achieved, the sampling error is reduced, and the sampling accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of geological survey, in particular to a soil drilling device for geological survey. Background Art

[0002] With the development of society and the advancement of science and technology, investigation and research work is carried out on the geological conditions such as rocks, strata, structures, minerals, hydrology, and landforms in a certain area. In the process of geological survey or geological sampling, people need to drill into the rock layer or soil layer, determine the appropriate bearing layer, determine the foundation type according to the bearing capacity of the bearing layer, and calculate the foundation parameters. When conducting geological surveys in a certain area, it is necessary to take deep core samples. The sampling methods are drilling sampling with a drilling rig and manual drilling sampling. In some special spaces, it is inconvenient for large equipment to enter, and soil sampling can only be done manually with the help of samplers. The common handheld sampler uses a motor to drive the drill bit into the ground and takes samples through a sampling tube.

[0003] Most existing samplers are bare-bones and are usually not used in conjunction with a fixed bracket. It is necessary to turn on the motor and manually press the handles on both sides to insert the drill hole into the ground. There is no guidance during this process, so the angle of the drill hole depends entirely on the operator's rough judgment. Especially when drilling on inclined ground, the error is large, which affects the results of soil sampling. Utility Model Content

[0004] The purpose of this utility model is to address the deficiencies in the above-mentioned technologies and to provide a soil drilling device for geological survey, aiming to solve the above-mentioned problems.

[0005] The utility model provides a soil drilling device for geological survey, comprising:

[0006] A base, wherein soil nails are provided on the base for fixing the base to the ground;

[0007] a limiting cylinder, the limiting cylinder being rotatably mounted on the base and capable of rotating relative to the base along a vertical plane;

[0008] A mounting frame, wherein the mounting frame is provided with a handle and a guide column, the limiting cylinder is provided with a limiting hole for sliding installation of the guide column, an output shaft is rotatably provided on the mounting frame, a motor is provided on the mounting frame that is transmission-connected to the output shaft, and a sampling cylinder is detachably provided at one end of the output shaft;

[0009] An adjusting mechanism is provided on the base and is used to adjust the angular position of the limiting cylinder.

[0010] Preferably, a funnel-shaped guide portion is provided on the top of the limiting cylinder, and the bottom of the guide portion is communicated with the limiting hole.

[0011] Preferably, an adjusting cylinder is provided on the base, the limiting cylinder is rotatably mounted on the adjusting cylinder, and the adjusting mechanism is provided on the adjusting cylinder and is used to adjust the angular position of the limiting cylinder.

[0012] Preferably, the adjustment mechanism includes a crown gear, a slider, a spring and an adjustment cover, the crown gear is arranged on the limit cylinder and rotates with the limit cylinder, the slider is movably installed on the adjustment cylinder and the slider cannot rotate relative to the adjustment cylinder, the slider is provided with a crown tooth plate for engaging with the crown gear, the spring is arranged in the inner cavity of the adjustment cylinder, the adjustment cover is threadedly connected to the adjustment cylinder, both ends of the spring are respectively abutted against the adjustment cover and the slider, and the adjustment cover is used to adjust the preload force of the spring.

[0013] Preferably, the sliding block is a square block, and the adjusting cylinder is provided with a square groove for the movable installation of the square block.

[0014] Preferably, a rotating handle and an abutting column are provided on the adjusting cover, and the abutting column is used to press against the sliding block to drive the crown toothed disc to bite onto the crown gear.

[0015] Preferably, an abutment plate and a mounting cover are sleeved on the guide column, a slide groove is provided on the guide column for sliding installation of the abutment plate, the top and bottom of the slide groove are provided with abutment parts for the abutment plate to abut, the mounting cover abuts against the upper end of the abutment plate, the limiting cylinder abuts against the lower end of the abutment plate, and the mounting cover is threadedly connected to the upper end of the limiting cylinder.

[0016] Preferably, a sleeve is provided on the sampling tube, a connecting rod for the sleeve to be sleeved is provided on the guide column, a through hole is provided on the sleeve, a mounting hole is provided on the connecting rod, a bolt is installed at the through hole, the bolt passes through the through hole and the mounting hole, and a nut is threadedly provided at one end of the bolt.

[0017] Preferably, the bottom of the sampling cylinder is provided with serrations.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The base is fixed to the ground by soil nails, the guide column on the mounting frame is inserted into the limit hole, and the angle position of the limit cylinder is adjusted with the adjustment mechanism. After the angle position of the limit cylinder is fixed, the motor drives the sampling cylinder to rotate through the output shaft, and the staff drives the mounting frame through the handle to drive the guide column to move down along the limit hole. That is, the limit hole on the limit cylinder guides the guide column, ensuring that the sampling cylinder can perform sampling work along the set direction, realizing the angle adjustment and guiding function of the sampling work, which is conducive to reducing sampling errors and improving sampling accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0022] Figure 2 A cross-sectional view of an embodiment of the present invention;

[0023] Figure 3 This is a structural diagram of a guide column and a limiting cylinder in a certain embodiment of the present utility model;

[0024] Figure 4 This is a structural diagram of the adjustment mechanism in a certain embodiment of the present utility model;

[0025] Figure 5 This is a schematic diagram of the connection structure between the mounting frame, the guide column and the sampling tube in a certain embodiment of the present utility model;

[0026] Figure 6 This is a structural diagram of the connecting rod and sleeve in a certain embodiment of the present utility model.

[0027] In the figure, 1-base; 2-limiting cylinder; 21-limiting hole; 22-guide part; 3-mounting frame; 31-handle; 32-output shaft; 4-guide column; 41-abutment disk; 42-mounting cover; 43-slide; 44-connecting rod; 441-mounting hole; 5-sampling cylinder; 6-adjusting mechanism; 61-crown gear; 62-slider; 621-crown gear disk; 63-spring; 64-adjusting cover; 641-rotating handle; 642-abutment column; 7-adjusting cylinder; 71-square groove; 8-sleeve; 81-through hole; 9-bolt; 91-nut. DETAILED DESCRIPTION

[0028] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0029] Example 1:

[0030] Reference Figures 1 to 6 The utility model provides a soil drilling device for geological survey, comprising:

[0031] A base 1 is provided with soil nails for fixing the base 1 to the ground;

[0032] The limiting cylinder 2 is rotatably mounted on the base 1 and can rotate relative to the base 1 along a vertical plane;

[0033] The mounting frame 3 is provided with a handle 31 and a guide column 4, the limiting cylinder 2 is provided with a limiting hole 21 for sliding installation of the guide column 4, the mounting frame 3 is rotatably provided with an output shaft 32, the mounting frame 3 is provided with a motor drivingly connected to the output shaft 32, and one end of the output shaft 32 is detachably provided with a sampling cylinder 5;

[0034] The adjusting mechanism 6 is provided on the base 1 and is used to adjust the angular position of the limiting cylinder 2 .

[0035] The base 1 is fixed to the ground by soil nails, the guide column 4 on the mounting frame 3 is inserted into the limiting hole 21, and the angular position of the limiting cylinder 2 is adjusted in conjunction with the adjustment mechanism 6. After the angular position of the limiting cylinder 2 is fixed, the motor drives the sampling cylinder 5 to rotate through the output shaft 32, and the staff drives the mounting frame 3 through the handle 31 to drive the guide column 4 to move downward along the limiting hole 21, that is, the limiting hole 21 on the limiting cylinder 2 guides the guide column 4, ensuring that the sampling cylinder 5 can perform sampling work along the set direction, realizing the angle adjustment and guiding function of the sampling work, which is conducive to reducing sampling errors and improving sampling accuracy.

[0036] Specifically, a funnel-shaped guide portion 22 is provided on the top of the limiting cylinder 2 , and the bottom of the guide portion 22 is communicated with the limiting hole 21 .

[0037] The funnel-shaped guide portion 22 is provided to guide the guide post 4 , thereby facilitating the insertion of the guide post 4 into the limiting hole 21 from the top of the limiting cylinder 2 .

[0038] Specifically, an adjusting cylinder 7 is provided on the base 1 , the limiting cylinder 2 is rotatably mounted on the adjusting cylinder 7 , and the adjusting mechanism 6 is provided on the adjusting cylinder 7 and is used to adjust the angular position of the limiting cylinder 2 .

[0039] Example 2:

[0040] Reference Figures 1 to 6 Combined with the technical solution of Example 1, in this embodiment, the adjusting mechanism 6 includes a crown gear 61, a slider 62, a spring 63 and an adjusting cover 64. The crown gear 61 is set on the limit cylinder 2 and rotates with the limit cylinder 2. The slider 62 is movably installed on the adjusting cylinder 7 and the slider 62 cannot rotate relative to the adjusting cylinder 7. The slider 62 is provided with a crown tooth plate 621 for engaging with the crown gear 61. The spring 63 is set in the inner cavity of the adjusting cylinder 7. The adjusting cover 64 is threadedly connected to the adjusting cylinder 7. The two ends of the spring 63 are respectively abutted against the adjusting cover 64 and the slider 62. The adjusting cover 64 is used to adjust the preload force of the spring 63.

[0041] Specifically, the slider 62 is a square block, and the adjusting cylinder 7 is provided with a square groove 71 for the movable installation of the square block.

[0042] Specifically, a rotation handle 641 and an abutting column 642 are provided on the adjustment cover 64 . The abutting column 642 is used to press against the slider 62 to drive the crown gear 621 to bite on the crown gear 61 .

[0043] When the angle position of the adjusting cylinder 7 needs to be adjusted, the adjusting cylinder 7 can be directly rotated manually or the guide column 4 can be inserted into the adjusting cylinder 7 and the limit cylinder 2 can be rotated by the handle 31 on the mounting bracket 3. During the rotation of the adjusting cylinder 7, the crown gear 61 is driven to rotate by the spring 63. Under the action of the spring 63, the crown gear plate 621 on the slider 62 elastically abuts against the crown gear 61. Under non-human force, the adjusting disk is not easy to deflect accidentally. Every time the adjusting disk rotates, the crown gear plate 621 will re-engage with the crown gear 61, that is, it has a certain rotation limiting function, which is convenient for the staff to adjust the angle of the adjusting cylinder 7. The pre-tightening force of the spring 63 can be adjusted by rotating the adjusting cover 64 so that the staff can adjust the pre-tightening force when the adjusting cylinder 7 rotates, and the slider 62 can be tightened by the abutting column 642 to drive the crown gear plate 621 to fully engage with the crown gear 61 to achieve the angle fixing of the adjusting cylinder 7.

[0044] Example 3:

[0045] Reference Figures 1 to 6 Combined with the technical solutions of Example 1 and Example 2, in this embodiment, an abutment plate 41 and a mounting cover 42 are sleeved on the guide column 4, and a slide groove 43 is provided on the guide column 4 for the sliding installation of the abutment plate 41. The top and bottom of the slide groove 43 are both provided with abutment portions for the abutment plate 41 to abut, the mounting cover 42 abuts against the upper end of the abutment plate 41, the limiting cylinder 2 abuts against the lower end of the abutment plate 41, and the mounting cover 42 is threadedly connected to the upper end of the limiting cylinder 2.

[0046] By connecting the mounting cover 42 to the limiting cylinder 2 and cooperating with the abutment plate 41 to limit the guide column 4, it is possible to prevent the guide column 4 from accidentally detaching from the limiting cylinder 2 during angle adjustment or guided excavation sampling.

[0047] Specifically, a sleeve 8 is provided on the sampling tube 5, a connecting rod 44 for the sleeve 8 to be sleeved is provided on the guide column 4, a through hole 81 is provided on the sleeve 8, a mounting hole 441 is provided on the connecting rod 44, a bolt 9 is installed at the through hole 81, the bolt 9 passes through the through hole 81 and the mounting hole 441, and a nut 91 is threadedly provided at one end of the bolt 9.

[0048] The sampling tube 5 is detachably mounted on the output shaft 32 by means of the bolts 9 and the nuts 91 , so that the staff can conveniently disassemble and assemble the sampling tube 5 and take out soil samples as needed.

[0049] Specifically, the bottom of the sampling tube 5 is provided with saw teeth, which facilitates the soil excavation and sampling work in conjunction with the rotation process of the output shaft 32 by providing the saw teeth at the bottom of the sampling tube 5.

[0050] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Any person skilled in the art can utilize the above technical content to make many possible changes and modifications to the present invention without departing from the scope of the present invention, or modify it into an equivalent embodiment with equivalent changes. Therefore, any changes, modifications, equivalent changes, and modifications made to the above embodiments based on the technology of the present invention that do not depart from the content of the present invention are within the scope of protection of the present invention.

Claims

1. A soil drilling device for geological survey, characterized in that: include: A base, wherein soil nails are provided on the base for fixing the base to the ground; a limiting cylinder, the limiting cylinder being rotatably mounted on the base and capable of rotating relative to the base along a vertical plane; A mounting frame, wherein the mounting frame is provided with a handle and a guide column, the limiting cylinder is provided with a limiting hole for sliding installation of the guide column, an output shaft is rotatably provided on the mounting frame, a motor is provided on the mounting frame that is transmission-connected to the output shaft, and a sampling cylinder is detachably provided at one end of the output shaft; An adjusting mechanism is provided on the base and is used to adjust the angular position of the limiting cylinder.

2. The soil drilling equipment for geological survey according to claim 1, characterized in that: A funnel-shaped guide portion is provided on the top of the limiting cylinder, and the bottom of the guide portion is communicated with the limiting hole.

3. The soil drilling equipment for geological survey according to claim 1, characterized in that: The base is provided with an adjusting cylinder, the limiting cylinder is rotatably mounted on the adjusting cylinder, and the adjusting mechanism is provided on the adjusting cylinder and is used to adjust the angular position of the limiting cylinder.

4. The soil drilling equipment for geological survey according to claim 3, characterized in that: The adjusting mechanism includes a crown gear, a slider, a spring and an adjusting cover. The crown gear is arranged on the limiting cylinder and rotates with the limiting cylinder. The slider is movably installed on the adjusting cylinder and the slider cannot rotate relative to the adjusting cylinder. The slider is provided with a crown tooth plate for engaging with the crown gear. The spring is arranged in the inner cavity of the adjusting cylinder. The adjusting cover is threadedly connected to the adjusting cylinder. The two ends of the spring are respectively in contact with the adjusting cover and the slider. The adjusting cover is used to adjust the preload force of the spring.

5. The soil drilling equipment for geological survey according to claim 4, characterized in that: The sliding block is a square block, and the adjusting cylinder is provided with a square groove for the square block to be movably installed.

6. The soil drilling equipment for geological survey according to claim 4, characterized in that: The adjusting cover is provided with a rotating handle and an abutting column, and the abutting column is used to press against the sliding block to drive the crown gear plate to bite on the crown gear.

7. The soil drilling equipment for geological survey according to claim 1, characterized in that: An abutment plate and an installation cover are sleeved on the guide column, a slide groove is provided on the guide column for the sliding installation of the abutment plate, and abutment portions for the abutment plate to abut are provided on the top and bottom of the slide groove, the installation cover abuts against the upper end of the abutment plate, the limiting cylinder abuts against the lower end of the abutment plate, and the installation cover is threadedly connected to the upper end of the limiting cylinder.

8. The soil drilling equipment for geological survey according to claim 1, characterized in that: The sampling tube is provided with a sleeve, the guide column is provided with a connecting rod for the sleeve to be sleeved, the sleeve is provided with a through hole, the connecting rod is provided with a mounting hole, a bolt is installed at the through hole, the bolt passes through the through hole and the mounting hole, and a nut is threadedly connected at one end of the bolt.

9. The soil drilling equipment for geological survey according to claim 1, characterized in that: The bottom of the sampling tube is provided with serrations.

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