Soil opener for geotechnical investigation

Abstract

The utility model belongs to the field of rock-soil exploration equipment, and discloses a soil opener for rock-soil exploration, which comprises a supporting seat, the supporting seat is used for supporting the ground, a soil opening device is vertically mounted in the middle of the supporting seat, the supporting seat comprises a supporting frame, a connecting cylinder and a spiral guide groove, the supporting frame is of an n-shaped structure, and the vertical connecting cylinder is fixed at the top of the supporting frame. A spiral guide groove is formed in an inner hole of the connecting cylinder, the soil opening device comprises a telescopic column, a soil opening cylinder, guide balls and a grip, the telescopic column slides up and down in the connecting cylinder, the soil opening cylinder is fixed to the bottom of the telescopic column, the top of the soil opening cylinder is closed, the bottom of the soil opening cylinder is open, and the soil opening cylinder is located below the supporting frame; the guide ball slides in the spiral guide groove, and a grip is installed on the top of the telescopic column. The soil opening cylinder can be vertically inserted into the ground, inclination is avoided, the soil opening cylinder automatically rotates in the downward moving process, the soil opening cylinder can be inserted into the ground more easily, labor is saved, and the rock soil sampling efficiency of the soil opening cylinder is improved.

Description

Technical Field

[0001] The utility model belongs to the field of geotechnical exploration equipment, and particularly relates to an earth opener for geotechnical investigation. Background Technique

[0002] Geotechnical investigation is mainly to查明工程地质条件,如山地、平原、河谷等不同地貌单元对工程建设的影响不同。确定各土层或岩层的类型、厚度、分布规律等,如果场地附近存在活动断层,那么工程建设的安全性就会受到严重威胁。(The original text seems to be incomplete here. Please check and provide the complete text for a more accurate translation.)

[0003] The utility model patent with the publication number of CN221764934U discloses an earth opener for geotechnical engineering investigation. For this earth opener for geotechnical engineering investigation, narrow openings and wide openings are respectively arranged on the earth opening cylinder. The settings of the narrow openings and wide openings can reduce the resistance between the earth opening cylinder and the soil, making it easier to insert into the soil for sampling. At the same time, the settings of the narrow openings and wide openings facilitate the removal of the soil with high viscosity inside the earth opening cylinder. However, this structure inserts the earth opening cylinder into the ground manually, and there is no auxiliary support when inserting into the ground, which is prone to tilting with the ground when inserting, affecting the exertion of force by the human arm and the insertion depth of the earth opening cylinder; if encountering a ground with greater resistance, referring to the principle of the hole opener, the handle is rotated horizontally to facilitate the earth opening cylinder to penetrate into the ground by rotating and pressing down. In this process, both a horizontal rotational force and a vertical downward force need to be applied to the handle, which consumes a large amount of physical strength and has low efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to provide an earth opener for geotechnical investigation, which solves the problems that when taking soil samples, the earth opening cylinder has no auxiliary support, resulting in the earth opening cylinder tilting when inserted into the ground, affecting the exertion of force by the human arm and the insertion depth of the earth opening cylinder, and also improves the problem that during the process of pressing down the handle, the earth opening cylinder can rotate left and right without rotating the handle horizontally to achieve more convenient insertion into the underground soil.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An earth opener for geotechnical investigation, including a support base, the support base is used for ground support, and an earth opening device is vertically installed in the middle. The support base includes a support frame, a connecting cylinder, and a spiral guide groove. The support frame is in a "U" - shaped structure, and a vertical connecting cylinder is fixed at the top. A spiral guide groove is opened in the inner hole of the connecting cylinder. The earth opening device includes a telescopic column, an earth opening cylinder, a guide ball, and a handle. The telescopic column slides up and down in the connecting cylinder. The bottom of the telescopic column is fixed with an earth opening cylinder. The top of the earth opening cylinder is sealed and the bottom is open, and it is located below the support frame. A plurality of guide balls are fixed on the outer wall of the telescopic column, and the guide balls slide in the spiral guide groove. A handle is installed at the top of the telescopic column.

[0007] Preferably, the spiral guide groove is composed of forward and reverse spiral grooves connected together.

[0008] Preferably, a bushing is fixed to the bottom of the grip, and the top of the telescopic column is connected to the bushing.

[0009] Preferably, the top outer wall of the soil-opening cylinder is a conical head, the soil-opening cylinder has multiple vertical expansion joints, the top of the conical head is fitted with a conical sleeve, and a pressure plate is fixed to the outer wall of the conical sleeve.

[0010] Preferably, the soil-opening device is equipped with a bulldozing device, which includes a push rod, a push plate, and a bulldozing plate. The push rod is located at the center of the telescopic column and extends to the top of the handle. The telescopic column can slide along the inner axis of the telescopic column. The push rod is fixed with a push plate at the top and a bulldozing plate at the top. The bulldozing plate is located inside the soil-opening cylinder.

[0011] Preferably, the support frame has integrally formed foot pressure plates extending from the front sides of both ends at the bottom.

[0012] Preferably, the bottom of the foot pressure plate is provided with positioning pins.

[0013] This utility model has the following beneficial effects:

[0014] 1. When the excavator is inserted into the ground, the telescopic column slides along the inside of the connecting cylinder, which plays a vertical guiding role. It is also supported by the support frame, so that the excavator can be inserted vertically into the ground and avoids tilting.

[0015] 2. During the downward pressing of the telescopic column, the guide ball slides along the spiral guide groove, causing the telescopic column to rotate. This indirectly causes the soil-opening cylinder to rotate during the downward movement, making it easier to insert the soil-opening cylinder into the ground. Moreover, manual labor only needs to press down on the handle, without the need to rotate the handle horizontally, saving manual labor and improving the efficiency of soil and rock sampling using the soil-opening cylinder. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the external structure of the support base of this utility model;

[0018] Figure 3 This is a schematic diagram of the spiral guide groove structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the soil-opening device of this utility model;

[0020] Figure 5 This is a longitudinal sectional view of the soil-opening device of this utility model;

[0021] Figure 6It is a schematic diagram of the position of the positioning nail of the utility model;

[0022] Icons: 1. Support base; 11. Support frame; 12. Connecting cylinder; 13. Spiral guide groove; 14. Foot pressing plate; 15. Positioning nail; 2. Soil opening device; 21. Telescopic column; 22. Soil opening cylinder; 221. Tapered head; 222. Expansion joint; 223. Tapered sleeve; 224. Pressing plate; 23. Guide ball; 24. Handle; 25. Bush; 3. Earth pushing device; 31. Push rod; 32. Hand push plate; 33. Earth pushing plate. Specific embodiments

[0023] The following further describes the embodiments of the present utility model in detail with reference to the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0024] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0025] As Figure 1-6 shown, in this embodiment, an earth opener for geotechnical exploration includes a support base 1, the support base 1 is used for ground support, and a soil opening device 2 is vertically installed in the middle. The support base 1 includes a support frame 11, a connecting cylinder 12, and a spiral guide groove 13. The support frame 11 is in a "U" - shaped structure with a raised middle part, and a vertical connecting cylinder 12 is welded at the top. A spiral guide groove 13 is opened in the inner hole of the connecting cylinder 12. The soil opening device 2 includes a telescopic column 21, a soil opening cylinder 22, a guide ball 23, and a handle 24. The telescopic column 21 slides up and down in the connecting cylinder 12 to play a guiding role. The bottom of the telescopic column 21 is fixed with a soil opening cylinder 22, which is convenient for the soil opening cylinder 22 to be inserted vertically into the ground, avoiding tilting during the insertion process. The top of the soil opening cylinder 22 is sealed and the bottom is open, which is convenient for the geotechnical materials to enter and be collected from the bottom. The soil opening cylinder 22 is located below the support frame 11. A plurality of guide balls 23 are fixed on the outer wall of the telescopic column 21, and the guide balls 23 slide in the spiral guide groove 13. As the guide balls 23 slide along the spiral guide groove 13, the telescopic column 21 rotates, indirectly causing the soil opening cylinder 22 to rotate during the downward movement, making it easier for the soil opening cylinder 22 to be inserted into the ground. The handle 24 is installed at the top of the telescopic column 21. With only manual pressure on the handle, it can be achieved without horizontally rotating the handle 24, saving manual labor and improving the efficiency of geotechnical sampling with the soil opening cylinder.

[0026] Specifically, the spiral guide groove 13 is composed of forward and reverse spiral grooves connected together. When the guide ball 23 slides along the spiral guide groove 13, the telescopic column 21 can rotate back and forth, reducing the amplitude of rotation of the person following the handle 24, making it easier to insert the soil-opening cylinder 22 into the ground.

[0027] Furthermore, a bushing 25 is fixed to the bottom of the handle 24, and the top of the telescopic column 21 is connected to the bushing 25. This ensures that the handle 24 does not rotate during the rotation of the telescopic column 21, and also eliminates the need for manual rotation when pressing down on the handle 24, making it more convenient to use.

[0028] Furthermore, the top outer wall of the excavation cylinder 22 is a conical head 221, and multiple vertical expansion joints 222 are formed on the excavation cylinder 22 to increase the elastic deformation effect of the excavation cylinder 22. A conical sleeve 223 is fitted onto the top of the conical head 221, and a pressure plate 224 is fixed to the outer wall of the conical sleeve 223. Pressing down the pressure plate 224 can reduce the diameter of the upper part of the excavation cylinder 22, increase the clamping force of the excavation cylinder 22 on the internal rock and soil, and prevent the rock and soil from falling out of the excavation cylinder 22 by gravity when it is removed.

[0029] Furthermore, a bulldozing device 3 is installed inside the soil-opening device 2. The bulldozing device 3 includes a push rod 31, a push plate 32, and a bulldozing plate 33. The push rod 31 is located at the center of the telescopic column 21 and extends to the top of the handle 24. The telescopic column 21 can slide along its inner axial direction. The push rod 31 has a push plate 32 and a bulldozing plate 33 fixed to its top. The bulldozing plate 33 is located inside the soil-opening cylinder 22. By manually pushing the push plate 32, the bulldozing plate 33 can easily push the entire sampled soil and rock inside the soil-opening cylinder 22 out.

[0030] Specifically, the support frame 11 has integrally formed foot pressure plates 14 extending from the front sides of both ends at the bottom. This facilitates manual standing on the foot pressure plates 14 while pressing down on the handle 24, and also increases the stability of the support frame 11 through the positioning pins 15 distributed at the bottom of the foot pressure plates 14.

[0031] The working principle of this utility model is as follows: The support frame 11 is placed directly above the location where the soil and rock to be sampled, so that the bottom opening of the soil-opening cylinder 22 is directly facing the sampling location. A person steps on the foot pressure plate 14, causing the positioning nails 15 to drive into the ground. The person then grips the handle and presses down. During the pressing process, the telescopic column 21 rotates due to the sliding of the guide ball 23 along the spiral guide groove 13. Simultaneously, the soil-opening cylinder 22 rotates and moves downward, allowing the soil and rock to enter the interior of the soil-opening cylinder 22. When pressed to the bottom, press the pressure plate 224 to make the conical sleeve 223 slide down along the conical head 221, which reduces the upper diameter of the soil-opening cylinder 22 and increases the clamping force on the internal sampled soil, preventing the sampled soil from falling out. After it is placed in a suitable position, lift the pressure plate 224 to make the conical sleeve 223 slide up along the conical head 221, which reduces the clamping force of the soil-opening cylinder 22 on the internal sampled soil. Push the push plate 32, and push the push rod 31 to make the push plate 33 push out the entire sampled soil inside the soil-opening cylinder 22.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An earth opening device for geotechnical investigation, characterized by, Including support seat (1), the support seat (1) is used for ground support, and the middle part is vertically installed with soil opening device (2), The support seat (1) includes support frame (11), connecting cylinder (12) and spiral guide groove (13), the support frame (11) is "several" character-shaped structure, and the top is fixed with vertical connecting cylinder (12), the inner hole of connecting cylinder (12) is provided with spiral guide groove (13), The soil opening device (2) includes telescopic column (21), soil opening cylinder (22), guide ball (23) and handle (24), the telescopic column (21) slides up and down along the connecting cylinder (12), the bottom of telescopic column (21) is fixed with soil opening cylinder (22), the top of soil opening cylinder (22) is closed and the bottom is open, and it is located below the support frame (11), a plurality of guide balls (23) are fixed on the outer wall of telescopic column (21), the guide balls (23) slide along the spiral guide groove (13), and the handle (24) is installed at the top of telescopic column (21).

2. The earth excavator for geotechnical investigation according to claim 1, characterized in that, The spiral guide groove (13) is connected by positive and negative spiral grooves.

3. The earth excavator for geotechnical investigation according to claim 2, characterized in that, The bottom of handle (24) is fixed with shaft sleeve (25), and the top of telescopic column (21) is connected with shaft sleeve (25).

4. The earth excavator for geotechnical investigation according to claim 1, characterized in that, The outer wall of the top of soil opening cylinder (22) is conical head (221), a plurality of vertical expansion joints (222) are formed in soil opening cylinder (22), the conical head (221) is sleeved with conical sleeve (223), and the outer wall of conical sleeve (223) is fixed with pressing plate (224).

5. The earth excavator for geotechnical investigation according to claim 1, characterized in that, The inside of soil opening device (2) is installed with bulldozing device (3), the bulldozing device (3) includes push rod (31), hand push plate (32) and bulldozing plate (33), the push rod (31) is located in the center of telescopic column (21) and extends to the top of handle (24), the telescopic column (21) can be connected axially in the telescopic column (21), the top of push rod (31) is fixed with hand push plate (32), and the top is fixed with bulldozing plate (33), and the bulldozing plate (33) is located in soil opening cylinder (22).

6. The earth excavator for geotechnical investigation according to claim 1, wherein The support frame (11) is integrally formed with foot pressing plate (14) at the front side of both ends of the bottom.

7. The earth excavator for geotechnical investigation according to claim 6, characterized in that, The bottom of foot pressing plate (14) is distributed with positioning nails (15).

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