Soil sampling device for detecting bearing capacity of foundation of photovoltaic booster station

Abstract

The utility model relates to the technical field of detection and soil sampling, in particular to a photovoltaic booster station foundation bearing capacity detection and soil sampling device. According to the technical scheme, the drilling soil sampling piece comprises a drilling sleeve, a drilling end, two extension arc plates and a reset spring, a bottom output shaft of a motor is fixedly connected with the drilling sleeve, the two extension arc plates are arranged in the drilling sleeve, and the reset spring is arranged in the drilling sleeve; a reset spring is elastically connected between the extension arc plate and the drilling sleeve. The opening between the two extension arc plates is enlarged through centrifugal force, after drilling is finished, the extension arc plates are reset under the elastic action of the reset springs, soil is extruded and gathered, friction force between the extension arc plates and the soil is increased, and scattering of the soil is avoided; when the soil needs to be taken out, the motor is operated again, the opening between the two extension arc plates is enlarged, the friction force between the extension arc plates and the soil is reduced due to gathering of the soil, and the soil can be taken out conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of soil sampling detection, and in particular to a soil sampling device for detecting the bearing capacity of a photovoltaic booster station foundation. Background Art

[0002] The mountain photovoltaic booster station site has large undulating terrain, weathered strata, low soil bearing capacity, and the photovoltaic booster station equipment is large in size, heavy in weight, and requires high installation precision. The photovoltaic booster station foundation and concrete foundation have high requirements. Since the terrain of the proposed photovoltaic booster station site is undulating, the middle of the site is low-lying, and the local soil bearing capacity is low, the bearing capacity of the booster station foundation is verified, and substandard soil is detected. The substandard soil is replaced by filling soil to improve the bearing capacity of the booster station foundation.

[0003] In the existing technology, it is necessary to sample and test the soil near the foundation of the photovoltaic booster station to test the bearing capacity of the soil near the foundation of the booster station. A soil sampling cylinder is inserted into the ground, and a drill bit at the end of the cylinder is used to drill into the ground to obtain soil.

[0004] However, after taking soil, this soil-taking device cannot take out the soil from the soil-taking tube in one piece due to the large friction between the soil and the soil-taking tube, making it inconvenient to detect. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the background technology that it is inconvenient to take out the soil in the soil taking barrel, and to propose a soil taking device for detecting the bearing capacity of the foundation of a photovoltaic booster station.

[0006] The technical solution of the utility model is: a soil-taking device for detecting the bearing capacity of the foundation of a photovoltaic booster station, comprising a central connecting plate, two symmetrically arranged gripping handles are fixedly mounted on the arc surface of the central connecting plate, and a motor is fixedly mounted on the top of the central connecting plate;

[0007] The drilling and soil-extracting component includes a drilling sleeve, a drilling end, an extension arc plate, and a return spring. The bottom output shaft of the motor is fixedly connected to the drilling sleeve. Two extension arc plates are provided, both of which are arranged inside the drilling sleeve. The return spring is elastically connected between the extension arc plate and the drilling sleeve. The drilling end is fixedly installed at the bottom of the drilling sleeve.

[0008] There is a distance between the drilling sleeve and the extended arc plate, and the drilled soil is stored inside the drilling sleeve.

[0009] Optionally, initially, the two extended arc plates are connected to form a complete cylinder, and the soil entering the drilling sleeve rises between the two extended arc plates, and the two extended arc plates clamp the soil.

[0010] Optionally, a receiving groove is provided on the inner arc surface of the drilling sleeve, and the end of the reset spring is fixedly installed at the receiving groove on the inner arc surface of the drilling sleeve. A plurality of reset springs are provided and are distributed equidistantly in a straight line along the drilling sleeve.

[0011] Optionally, a guide telescopic rod is provided at the center of the return spring, and both ends of the guide telescopic rod are fixedly connected to the extended arc plate and the drilling sleeve respectively.

[0012] Optionally, when the guide telescopic rod is fully retracted, the length of the guide telescopic rod is the same as the depth of the receiving groove, and the outer arc surface of the extended arc plate is in contact with the drilling sleeve.

[0013] Optionally, a shielding and anti-seepage component is provided inside the drilling sleeve, and the shielding and anti-seepage component includes a connecting barrier skin and a built-in barrier cloth. The two extended arc plates are connected by the connecting barrier skin, and the built-in barrier cloth is fixedly installed on the inner wall of the drilling end, and the top of the built-in barrier cloth is fixedly installed on the inner wall of the extended arc plate.

[0014] Optionally, the built-in baffle is an elastic cloth with a cylindrical structure, the bottom of the drilling end has a chamfered structure, the cross-section of the connecting baffle is an arc structure, and the outer arc surface of the connecting baffle is fixedly mounted on the inner wall of the drilling sleeve.

[0015] Compared with the prior art, this application has at least one of the following beneficial technical effects:

[0016] The utility model increases the opening between the two extended arc plates by centrifugal force. After drilling is completed, the extended arc plates are reset under the elastic force of the reset spring and the soil is squeezed and gathered, thereby increasing the friction between the extended arc plates and the soil and preventing the soil from scattering.

[0017] Furthermore, when the soil needs to be removed, the motor is operated again to enlarge the opening between the two extended arc plates. As the soil gathers, the friction between the extended arc plates and the soil is reduced, making it easier to remove.

[0018] Furthermore, when the opening between the two extended arc plates increases, the built-in baffle is stretched synchronously to adapt to the changes in the opening between each extended arc plate. The gap between the two extended arc plates is blocked by the connecting baffle, and the soil drilled by the drilling end is guided by the built-in baffle to prevent the soil from entering between the extended arc plate and the drilling sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the overall structure of an embodiment of the present invention is given;

[0020] Figure 2 A schematic cross-sectional view of a drilling sleeve structure according to an embodiment of the present invention is given;

[0021] Figure 3 for Figure 2 A part of the guide telescopic rod structure is enlarged;

[0022] Figure 4 A schematic diagram of the built-in cloth barrier structure of an embodiment of the present utility model is given.

[0023] Figure numerals: 1. Central connecting plate; 2. Motor; 3. Handle; 4. Drilling and soil-taking part; 41. Drilling sleeve; 42. Drilling end; 43. Extended arc plate; 44. Return spring; 45. Guide telescopic rod; 46. Storage slot; 5. Shielding and anti-seepage part; 51. Connecting barrier skin; 52. Built-in barrier cloth. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0025] Example 1

[0026] This embodiment proposes a soil sampling device for detecting the bearing capacity of the foundation of a photovoltaic booster station. Figure 1 As shown, it includes a central connecting plate 1, two symmetrically arranged gripping handles 3 are fixedly installed on the arc surface of the central connecting plate 1, a motor 2 is fixedly installed on the top of the central connecting plate 1, and a drilling and soil-taking piece 4 is provided at the bottom of the gripping handle 3. The user holds the gripping handle 3 and uses the motor 2 to drive the drilling and soil-taking piece 4 to rotate for drilling and soil-taking.

[0027] like Figure 2 and Figure 3 As shown, the drilling and soil-extracting component 4 includes a drilling sleeve 41, a drilling end 42, an extension arc plate 43 and a return spring 44. The bottom output shaft of the motor 2 is fixedly connected to the drilling sleeve 41. Two extension arc plates 43 are provided, and the two extension arc plates 43 are both arranged inside the drilling sleeve 41. Initially, the two extension arc plates 43 are connected to form a complete cylinder. The two extension arc plates 43 clamp the soil. The return spring 44 is elastically connected between the extension arc plate 43 and the drilling sleeve 41. There is a gap between the drilling sleeve 41 and the extension arc plate 43. The drilled soil is stored inside the drilling sleeve 41, and the soil entering the drilling sleeve 41 rises between the two extension arc plates 43.

[0028] By holding the motor 2 and pressing down the middle connecting plate 1, the handle 3 is rotated to drive the drilling sleeve 41 to rotate, thereby drilling and taking soil. During the rotation process, the extended arc plate 43 inside the drilling sleeve 41 is subjected to centrifugal force, the extended arc plate 43 compresses the return spring 44, and the outer arc surface of the extended arc plate 43 is abutted against the drilling sleeve 41. At this time, the opening between the two extended arc plates 43 is enlarged to facilitate the entry of soil.

[0029] After drilling and soil extraction is completed, the elastic force of the return spring 44 resets the extended arc plate 43 to apply a squeezing force to the soil between the two extended arc plates 43, so that the soil is gathered together, and at the same time, the friction between the extended arc plate 43 and the soil is increased to prevent the soil from scattering.

[0030] After the drilling sleeve 41 is taken out from the ground, the grip 3 is activated again, the opening between the two extended arc plates 43 is enlarged, the soil is gathered, and the friction between the soil and the extended arc plates 43 is reduced, making it easier to remove the soil.

[0031] like Figure 2 As shown, a drilling head 42 is fixedly installed at the bottom of the drilling sleeve 41, and the bottom of the drilling head 42 adopts a chamfered structure to facilitate the drilling sleeve 41 to drill into the soil.

[0032] like Figure 3 As shown, the inner curved surface of the drilling sleeve 41 defines a receiving groove 46, and the end of a return spring 44 is fixedly mounted in the receiving groove 46 of the inner curved surface of the drilling sleeve 41. Multiple return springs 44 are provided, equidistantly distributed along the drilling sleeve 41 in a straight line. A guide telescopic rod 45 is provided at the center of the return spring 44, with its ends fixedly connected to the extension arc plate 43 and the drilling sleeve 41, respectively. When the guide telescopic rod 45 is fully retracted, its length is equal to the depth of the receiving groove 46, and the outer curved surface of the extension arc plate 43 rests against the drilling sleeve 41.

[0033] Multiple guiding telescopic rods 45 guide the extended arc plate 43 to prevent the extended arc plate 43 from tilting. The receiving groove 46 is used to accommodate the reset spring 44. When the outer arc surface of the extended arc plate 43 is against the drilling sleeve 41, the reset spring 44 completely enters the receiving groove 46.

[0034] In this embodiment, the opening between the two extended arc plates 43 is increased by centrifugal force. After drilling is completed, the extended arc plates 43 are reset under the elastic force of the reset spring 44 and the soil is squeezed and gathered, thereby increasing the friction between the extended arc plates 43 and the soil to prevent the soil from scattering. When the soil needs to be removed, the motor 2 is operated again to increase the opening between the two extended arc plates 43. Since the soil is gathered, the friction between the extended arc plates 43 and the soil is reduced, making it easier to remove the soil.

[0035] Example 2

[0036] Based on Example 1, this embodiment proposes a soil sampling device for detecting the bearing capacity of the foundation of a photovoltaic booster station, such as Figure 4 As shown, a shielding and anti-seepage component 5 is provided inside the drilling sleeve 41, and the shielding and anti-seepage component 5 includes a connecting barrier skin 51 and a built-in barrier cloth 52. The two extended arc plates 43 are connected by the connecting barrier skin 51. The built-in barrier cloth 52 is fixedly installed on the inner wall of the drilling end 42, and the top of the built-in barrier cloth 52 is fixedly installed on the inner wall of the extended arc plate 43. The built-in barrier cloth 52 adopts an elastic cloth with a cylindrical structure.

[0037] The cross-section of the connecting baffle 51 adopts an arc structure, and the outer arc surface of the connecting baffle 51 is fixedly installed on the inner wall of the drilling sleeve 41. When the opening between the two extended arc plates 43 increases, the built-in baffle 52 is stretched synchronously to adapt to the change of the opening between the two extended arc plates 43.

[0038] The gap between the two extended arc plates 43 is blocked by the connecting blocking skin 51 , and the soil drilled by the drilling end 42 is guided by the built-in blocking cloth 52 to prevent the soil from entering between the extended arc plates 43 and the drilling sleeve 41 .

[0039] In this embodiment, when the opening between the two extended arc plates 43 increases, the built-in blocking cloth 52 is stretched synchronously to adapt to the change in the opening between the two extended arc plates 43. The gap between the two extended arc plates 43 is blocked by the connecting blocking skin 51, and the soil drilled by the drilling end 42 is guided by the built-in blocking cloth 52 to prevent the soil from entering between the extended arc plates 43 and the drilling sleeve 41.

[0040] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art may make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A soil sampling device for detecting the bearing capacity of the foundation of a photovoltaic booster station, characterized in that: include: A central connecting plate (1), two symmetrically arranged gripping handles (3) are fixedly mounted on the arc surface of the central connecting plate (1), and a motor (2) is fixedly mounted on the top of the central connecting plate (1); A soil drilling member (4) includes a drilling sleeve (41), a drilling end (42), an extension arc plate (43) and a return spring (44); the bottom output shaft of the motor (2) is fixedly connected to the drilling sleeve (41); two extension arc plates (43) are provided, and both of the two extension arc plates (43) are provided inside the drilling sleeve (41); a return spring (44) is elastically connected between the extension arc plate (43) and the drilling sleeve (41); and the drilling end (42) is fixedly installed at the bottom of the drilling sleeve (41); There is a distance between the drilling sleeve (41) and the extended arc plate (43), and the drilled soil is stored inside the drilling sleeve (41).

2. A soil sampling device for detecting the bearing capacity of a photovoltaic booster station foundation according to claim 1, characterized in that: The two extended arc plates (43) are connected to form a complete cylinder, and the two extended arc plates (43) clamp soil.

3. The soil sampling device for detecting the bearing capacity of the foundation of a photovoltaic booster station according to claim 1 is characterized in that: The inner arc surface of the drilling sleeve (41) is provided with a receiving groove (46), and the end of the return spring (44) is fixedly mounted at the receiving groove (46) on the inner arc surface of the drilling sleeve (41). A plurality of return springs (44) are provided and are distributed equidistantly in a straight line along the drilling sleeve (41).

4. The soil sampling device for detecting the bearing capacity of the foundation of a photovoltaic booster station according to claim 3 is characterized by: A guide telescopic rod (45) is provided at the center of the return spring (44), and two ends of the guide telescopic rod (45) are fixedly connected to the extended arc plate (43) and the drilling sleeve (41) respectively.

5. The soil sampling device for detecting the bearing capacity of the foundation of a photovoltaic booster station according to claim 4 is characterized in that: The length of the guide telescopic rod (45) is the same as the depth of the receiving groove (46), and the outer arc surface of the extended arc plate (43) is in contact with the drilling sleeve (41).

6. The soil sampling device for detecting the bearing capacity of the photovoltaic booster station foundation according to claim 1 is characterized in that: A shielding and anti-seepage member (5) is provided inside the drilling sleeve (41), and the shielding and anti-seepage member (5) comprises a connecting shield (51) and a built-in shield cloth (52). The two extended arc plates (43) are connected via the connecting shield (51). The built-in shield cloth (52) is fixedly mounted on the inner wall of the drilling end (42), and the top of the built-in shield cloth (52) is fixedly mounted on the inner wall of the extended arc plate (43).

7. The soil sampling device for detecting the bearing capacity of the foundation of a photovoltaic booster station according to claim 6, characterized in that: The built-in blocking cloth (52) is made of elastic cloth with a cylindrical structure, the cross section of the connecting blocking skin (51) is of an arc structure, the outer arc surface of the connecting blocking skin (51) is fixedly mounted on the inner wall of the drilling sleeve (41), and the bottom of the drilling end (42) is of a chamfered structure.

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