Sampling device for geotechnical engineering investigation

Abstract

The utility model relates to the technical field of engineering investigation, in particular to a sampling device for geotechnical engineering investigation, which comprises a vertical rod, a sampling barrel fixed at the lower end of the vertical rod, a grip fixed at the upper end of the vertical rod, a push rod movably mounted between the vertical rod and the middle of the grip, and a pushing disc fixed at the lower end of the push rod and positioned on the inner side of the sampling barrel, a pressurizing mechanism for assisting in force borrowing in the rock-soil sampling process is arranged between the outer side of the vertical rod and the grip. According to the utility model, the original sampling device is scientifically and reasonably improved, and the adjusting sliding sleeve, the transverse supporting block, the U-shaped buckle piece and the outer stud are arranged between the vertical rod and the grip, so that a height-adjustable foot support structure can be formed on the vertical rod, and the legs of an operator can apply additional downward acting force on the vertical rod; the workload and the difficulty of inserting the sampling barrel into the ground are effectively reduced, so that the convenience and the efficiency of actual sampling operation of the sampling device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering investigation, in particular to a sampling device for geotechnical engineering investigation. Background Art

[0002] Geotechnical engineering investigation refers to the activities of identifying, analyzing, and evaluating the geological, environmental characteristics and geotechnical conditions of the construction site and preparing investigation documents according to the requirements of the construction project.

[0003] At present, in the actual investigation process of geotechnical engineering, in order to analyze the soil conditions, it is often necessary to use a sampling device to perform fixed-point soil sampling and processing. During this operation, a special soil sampling device is required. However, the soil sampling device currently used has the following shortcomings during actual use: Since only a handle is provided on the soil sampler, the sampling tube is partially inserted into the ground mainly by applying pressure downward by the operator's hand. However, for sampling of harder soil, the operator is required to apply a large force on the handle, or reciprocate the handle to drive the sampling tube to be inserted into the ground, resulting in a large workload and difficulty in the entire sampling process, which reduces the convenience and efficiency of the sampling device in the actual sampling process.

[0004] In view of this, it is particularly important to design and manufacture a sampling device that is convenient for applying external force and reduces the difficulty of inserting the sampling tube in geotechnical engineering investigation. Utility Model Content

[0005] The utility model aims to solve the problem that it is difficult to apply external force to the traditional sampling device for geotechnical engineering investigation, which makes it troublesome and laborious to insert the sampling tube into the hard soil, and proposes a sampling device for geotechnical engineering investigation.

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

[0007] A sampling device for geotechnical engineering investigation comprises a vertical rod, a sampling tube fixed at the lower end of the vertical rod, a handle fixed at the upper end of the vertical rod, a push rod movably installed between the vertical rod and the middle part of the handle, and a push plate fixed at the lower end of the push rod and located inside the sampling tube. A pressure mechanism for assisting force in the geotechnical sampling process is arranged between the outer side of the vertical rod and the handle.

[0008] As a further description of the above technical solution:

[0009] The pressurizing mechanism includes an adjusting sleeve movably mounted on the outside of the vertical rod, horizontal support blocks symmetrically fixed to the left and right ends of the adjusting sleeve, a U-shaped buckle piece fixed to the upper end of the horizontal support block and engaged with the handle, and a locking portion arranged between the vertical rod and the adjusting sleeve.

[0010] As a further description of the above technical solution:

[0011] The locking part comprises an inner screw seat integrally formed at the middle of the front end of the adjusting sleeve, an outer screw bolt installed inside the inner screw seat through threaded engagement and penetrating the vertical rod, and a plurality of locking holes equidistantly arranged at the front end of the vertical rod.

[0012] As a further description of the above technical solution:

[0013] A knob is installed at the front end of the outer stud.

[0014] As a further description of the above technical solution:

[0015] A guide portion for improving the vertical adjustment stability of the adjusting sleeve is arranged between the adjusting sleeve and the vertical rod.

[0016] As a further description of the above technical solution:

[0017] The guide portion comprises three guide strips fixed integrally on the outside of the vertical rod at an equal angle of 120 degrees and a guide groove opened on the inner side of the adjusting sliding sleeve and corresponding to the guide strips.

[0018] As a further description of the above technical solution:

[0019] Both ends of the handle are sleeved with anti-slip rubber sleeves covering the ends of the handle.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0021] 1. In the utility model, the original sampling device is scientifically and rationally improved, and an adjustment sleeve, a cross support block, a U-shaped buckle and an outer stud are arranged between the vertical rod and the handle. The adjustment sleeve slides on the vertical rod, and the height of the cross support block from the ground can be dynamically adjusted. After the outer stud is screwed into the lock hole at the specified position on the vertical rod, the operator can use his hands and feet to drive the sampling tube to move up and down on the ground. This structure can form a height-adjustable foot support structure on the vertical rod, and the operator's legs can exert additional downward force on the vertical rod, which effectively reduces the workload and difficulty of inserting the sampling tube into the ground, thereby improving the convenience and efficiency of the actual sampling operation of the sampling device.

[0022] 2. In the utility model, three guide strips with equal angles are arranged on the vertical rod, and guide grooves are arranged on the adjusting sleeve, so that the adjusting sleeve can be stably raised and lowered on the vertical rod, effectively reducing the occurrence of deflection and displacement of the cross support block caused by external force acting on the cross support block, thereby improving the working stability of the sampling device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1This is a schematic structural diagram of a sampling device for geotechnical engineering investigation proposed by the utility model;

[0024] Figure 2 It is a three-dimensional disassembly schematic diagram of the utility model;

[0025] Figure 3 It is a 90° angled cross-sectional view of the vertical rod and the adjusting sleeve in the utility model.

[0026] Legend:

[0027] 1. Vertical rod; 101. Lock hole; 102. Guide strip; 2. Sampling tube; 3. Handle; 301. Anti-slip rubber sleeve; 4. Push rod; 401. Push plate; 5. Adjustment sleeve; 501. Internal screw seat; 502. Horizontal support block; 503. U-shaped buckle; 504. Guide groove; 6. External stud; 601. Knob. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-3 The utility model provides a technical solution: a sampling device for geotechnical engineering investigation, comprising a vertical rod 1, a sampling tube 2 fixed at the lower end of the vertical rod 1, a handle 3 fixed at the upper end of the vertical rod 1, a push rod 4 movably installed between the vertical rod 1 and the middle part of the handle 3, and a push plate 401 fixed at the lower end of the push rod 4 and located inside the sampling tube 2, and a pressurizing mechanism for assisting force in the process of geotechnical sampling is arranged between the outer side of the vertical rod 1 and the handle 3.

[0030] Specifically, Figure 1-3As shown, the pressurizing mechanism includes an adjusting sleeve 5 movably sleeved on the outside of the vertical rod 1, a horizontal support block 502 symmetrically fixed to the left and right ends of the adjusting sleeve 5, a U-shaped buckle piece 503 fixed to the upper end of the horizontal support block 502 and buckled with the handle 3, and a locking portion arranged between the vertical rod 1 and the adjusting sleeve 5, wherein the locking portion includes an inner screw seat 501 integrally formed at the middle of the front end of the adjusting sleeve 5, an outer stud 6 installed on the inner side of the inner screw seat 501 through a threaded engagement and penetrating the vertical rod 1, and a screw thread 504 equidistantly provided on the vertical rod. The plurality of locking holes 101 at the front end of the vertical rod 1 can be provided so that the adjusting sleeve 5 can be fixed at a specified height of the vertical rod 1 through a fastener, so as to facilitate the sampling of soils at different depths by the sampling device, and can also be adaptively adjusted according to the use of the operator. In addition, the provision of the U-shaped buckle 503 can, on the one hand, stably buckle the horizontal support block 502 under the handle 3, and on the other hand, increase the contact friction between the operator's feet and the horizontal support block 502.

[0031] At the same time, a knob 601 is installed at the front end of the outer stud 6 to facilitate the operator to hold and rotate the outer stud 6 for adjustment.

[0032] Specifically, Figure 1-3 As shown, a guide portion for improving the vertical adjustment stability of the adjusting sleeve 5 is provided between the adjusting sleeve 5 and the vertical rod 1, and the guide portion includes three guide bars 102 which are fixed integrally at 120° on the outside of the vertical rod 1, and a guide groove 504 which is opened on the inner side of the adjusting sleeve 5 and corresponds to the guide bar 102. The provision of the guide bar 102 and the guide groove 504 can, on the one hand, improve the stability of the lifting and lowering movement of the adjusting sleeve 5 on the vertical rod 1, and on the other hand, prevent the deflection and displacement of the cross support block 502 on the vertical rod 1 when the operator steps on the cross support block 502.

[0033] Specifically, Figure 1 and Figure 2 As shown, both ends of the handle 3 are sleeved with anti-skid rubber sleeves 301 covering the ends of the handle 3, which can increase the contact friction between the user's hand and the gripping end of the handle 3 and reduce the occurrence of the operator's hand slipping off the handle 3.

[0034] Working principle: In the initial state, the adjusting sleeve 5 can be slidably adjusted to between the vertical rod 1 and the handle 3, and the horizontal support block 502 and the U-shaped buckle piece 503 can be stored under the handle 3. During actual use, the operator can raise and lower the adjusting sleeve 5 on the vertical rod 1 according to the soil texture of the actual sampling area. When the horizontal support block 502 is adjusted to a suitable height from the ground, the knob 601 can be held to screw the outer stud 6 into the lock hole 101 at the specified position on the vertical rod 1, and the adjustment and fixing operation of the foot support part of the sampling device is completed. At this time, the operator can hold the handle 3 with both hands, place one of the feet on the U-shaped buckle piece 503 of the horizontal support block 502, and then use hands and feet to apply a vertical downward force to the vertical rod 1, insert the sampling tube 2 into the ground, and perform subsequent soil sampling operations.

[0035] The above description 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 sampling device for geotechnical engineering investigation, comprising a vertical rod (1), a sampling tube (2) fixed at the lower end of the vertical rod (1), a handle (3) fixed at the upper end of the vertical rod (1), a push rod (4) movably mounted between the middle of the vertical rod (1) and the handle (3), and a push plate (401) fixed at the lower end of the push rod (4) and located inside the sampling tube (2), characterized in that: A pressure mechanism for assisting force in the process of rock and soil sampling is provided between the outer side of the vertical rod (1) and the handle (3).

2. A sampling device for geotechnical engineering investigation according to claim 1, characterized in that: The pressurizing mechanism comprises an adjusting sleeve (5) movably sleeved on the outside of the vertical rod (1), a transverse support block (502) symmetrically fixed to the left and right ends of the adjusting sleeve (5), a U-shaped buckle piece (503) fixed to the upper end of the transverse support block (502) and buckled with the handle (3), and a locking portion arranged between the vertical rod (1) and the adjusting sleeve (5).

3. A sampling device for geotechnical engineering investigation according to claim 2, characterized in that: The locking portion comprises an inner screw seat (501) integrally formed at the middle of the front end of the adjusting sleeve (5), an outer screw (6) screwed on the inner side of the inner screw seat (501) and passing through the vertical rod (1), and a plurality of locking holes (101) equidistantly arranged at the front end of the vertical rod (1).

4. A sampling device for geotechnical engineering investigation according to claim 3, characterized in that: A knob (601) is installed at the front end of the outer stud (6).

5. A sampling device for geotechnical engineering investigation according to claim 2, characterized in that: A guide portion for improving the vertical adjustment stability of the adjusting sleeve (5) is provided between the adjusting sleeve (5) and the vertical rod (1).

6. A sampling device for geotechnical engineering investigation according to claim 5, characterized in that: The guide portion comprises three guide strips (102) fixed integrally to the outside of the vertical rod (1) at an equal angle of 120 degrees, and a guide groove (504) provided on the inner side of the adjustment sleeve (5) and corresponding to the guide strips (102).

7. A sampling device for geotechnical engineering investigation according to claim 1, characterized in that: Both ends of the handle (3) are sleeved with anti-slip rubber sleeves (301) covering the ends of the handle (3).

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