Sand sampler for geotechnical investigation

Abstract

The utility model relates to the technical field of geotechnical investigation, in particular to a geotechnical investigation sand taking device which comprises a drilling mechanism, a moving mechanism arranged on the lower side of the drilling mechanism and a sand taking mechanism. The test sand taking cylinder is used for driving the test sand storage cylinder to drill downwards to take sand, meanwhile, the test push ring is pushed upwards, the partition turning plate is pulled by the test ejector rod and the turning pull rope to turn towards the outside of the test sand storage cylinder, and then the sand enters the test sand storage cylinder. After sand is taken, the separation turning plate is pushed by the testing elastic seat to turn towards the center of the testing sand storage cylinder, so that the sand entering the testing sand storage cylinder is supported, and meanwhile, the sand in the testing sand storage cylinder is cut off and separated from the sand which does not enter the testing sand storage cylinder, so that the sand is prevented from flowing out of the testing sand storage cylinder under the action of gravity.

Description

Technical Field

[0001] The utility model relates to the technical field of rock and soil exploration, in particular to a rock and soil exploration sand extractor. Background Art

[0002] After searching the patent document with the announcement number CN222364794U, it is found that the forward rotation of the second motor drives the synchronous forward rotation of the second screw rod. Since the limit block on the threaded barrel is arranged in the limit groove, the limit block will limit the rotation of the threaded barrel. Therefore, the forward rotation of the second screw rod will drive the threaded barrel to move downward along the axial direction of the second screw rod. As the threaded barrel moves downward, the sampling tube also moves downward, gradually penetrating the soil or sand layer for sampling. After the sample collection is completed, the second screw rod is reversely rotated by the second motor to drive the threaded barrel to move upward along the axial direction of the second screw rod, thereby driving the sampling tube to gradually rise to the initial position.

[0003] The patent document states that when the sampling tube moves upward after taking the sample, since the underground sand contains a certain amount of moisture, if vibration occurs during the upward movement, the entire sand may fall off, which will then affect the entire sand sampling amount and sampling efficiency. In addition, when taking out the sample, the sampling tube needs to be properly knocked to export the sample, which is more troublesome and cannot quickly export the sample. Utility Model Content

[0004] The purpose of the utility model is to provide a rock and soil survey sand extractor in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A rock and soil exploration sand extractor, comprising a drilling mechanism, a moving mechanism is provided at the lower side of the drilling mechanism, and a sand extractor;

[0007] The sand taking mechanism includes a test sand taking cylinder, a test sand storage cylinder is fixed inside the test sand taking cylinder, a test sand pushing plate is slidably connected inside the test sand storage cylinder, a plurality of arc grooves are opened at the lower end of the test sand storage cylinder, and a rotating shaft is provided in each arc groove, a barrier flap is rotatably connected to each arc groove, the rotating shaft is rotatably connected to the barrier flap, a test spring seat is provided on the outer side of each barrier flap near the rotating shaft, a flip rope is fixed on the outer side of the barrier flap away from the rotating shaft, a test push ring is slidably connected between the test sand taking cylinder and the test sand storage cylinder, a plurality of test push rods are fixed on the top of the test push ring, and the upper end of each test push rod is fixedly connected to the corresponding flip pull rope.

[0008] Preferably, the test spring seat is composed of a spring and a sliding seat, the spring is fixedly connected to the sliding seat, and one end of the spring away from the sliding seat is fixedly connected to the barrier flap.

[0009] Preferably, a plurality of limiting grooves are formed at the lower end of the test sand sampling cylinder, and the sliding seat is slidably connected in the limiting grooves.

[0010] Preferably, the drilling mechanism includes a mounting frame, a sliding guide rail is fixed on one side of the mounting frame, a drill pipe is arranged on one side of the sliding guide rail, a hydraulic motor is fixedly arranged at the upper end of the drill pipe, and a lifting seat for mounting the hydraulic motor is slidably connected on the sliding guide rail.

[0011] Preferably, a threaded seat for connecting with the drill pipe is fixed at the top of the lower end of the test sand sampling cylinder, and a first through hole is formed at the top of the threaded seat.

[0012] Preferably, a crescent plate for increasing the supporting area of the sand is fixed at the top of the partition flap.

[0013] Preferably, a second through hole is formed at the connection position between the top of the test sand sampling cylinder and the threaded seat, and an air guide pipe extending out of the second through hole is fixed at the top of the test sand pushing plate.

[0014] The beneficial effects compared with the prior art are as follows: The test sand sampling cylinder is used to drive the test sand storage cylinder to drill downward for sand sampling. At the same time, the test push ring will be pushed upward, and then the partition flap is pulled to flip out of the test sand storage cylinder through the test push rod and the flipping pull rope, so that the sand can enter the test sand storage cylinder. After sand sampling, the partition flap is pushed by the test spring seat to flip towards the center of the test sand storage cylinder, so as to support the sand entering the test sand storage cylinder, and at the same time, the sand in the test sand storage cylinder is cut off and separated from the sand that has not entered, thus avoiding the sand flowing out of the test sand storage cylinder due to the action of gravity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 is an exploded view of the sand sampling mechanism of a sand sampler for geotechnical investigation according to the present invention;

[0017] Figure 2 is a front view of the sand sampling mechanism of a sand sampler for geotechnical investigation according to the present invention;

[0018] Figure 3 is a schematic structural diagram of the moving mechanism of a sand sampler for geotechnical investigation according to the present invention;

[0019] Figure 4 is a schematic structural diagram of the drilling mechanism of a sand sampler for geotechnical investigation according to the present invention;

[0020] Figure 5 It is a schematic structural diagram of the test sand sampling cylinder of a sand sampler for geotechnical investigation according to the present utility model;

[0021] Figure 6 It is a schematic structural diagram of the test sand storage cylinder of a sand sampler for geotechnical investigation according to the present utility model;

[0022] Figure 7 is Figure 2 The cross-sectional view at E-E in

[0023] Figure 8 is Figure 5 The partial enlarged view at F in

[0024] Figure 9 It is a schematic structural diagram of the test push ring, test ejector rod, flipping pull rope and partition flap of a sand sampler for geotechnical investigation according to the present utility model;

[0025] Figure 10 It is a schematic structural diagram of the partition flap of a sand sampler for geotechnical investigation according to the present utility model.

[0026] The description of the reference numerals is as follows:

[0027] 1. Sand sampling mechanism; 2. Drilling mechanism; 3. Moving mechanism; 11. Test sand sampling cylinder; 111. Limit groove; 12. Test sand pushing plate; 13. Test sand storage cylinder; 14. Test spring seat; 15. Test push ring; 16. Test ejector rod; 17. Flipping pull rope; 18. Partition flap; 21. Mounting frame; 22. Sliding guide rail; 23. Hydraulic motor; 24. Drill pipe; 31. Moving frame; 32. Support leg; 33. Moving wheel. Specific embodiments

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" 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, and it can be the communication inside two components. 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.

[0029] The present utility model will be further described below with reference to the accompanying drawings:

[0030] As Figures 1-10 shown, a sand sampler for geotechnical investigation includes a drilling mechanism 2, a moving mechanism 3 is provided below the drilling mechanism 2, and a sand sampling mechanism 1 is further included;

[0031] In this embodiment: The sand taking mechanism 1 includes a test sand taking cylinder 11. Inside the test sand taking cylinder 11, a test sand storage cylinder 13 is fixed. Inside the test sand storage cylinder 13, a test sand pushing plate 12 is slidably connected. At the lower end of the test sand storage cylinder 13, a plurality of arc-shaped grooves are formed, and a rotating shaft is provided in each arc-shaped groove. Each arc-shaped groove is rotatably connected with a partition flap 18. The rotating shaft is rotatably connected with the partition flap 18. At a position close to the rotating shaft on the outer side of each partition flap 18, a test spring seat 14 is provided. At a position far from the rotating shaft on the outer side of the partition flap 18, a turning pull rope 17 is fixed. Between the test sand taking cylinder 11 and the test sand storage cylinder 13, a test pushing ring 15 is slidably connected. On the top of the test pushing ring 15, a plurality of test ejector rods 16 are fixed. The upper end of each test ejector rod 16 is fixedly connected with the corresponding turning pull rope 17. The test spring seat 14 is composed of a spring and a sliding seat. The spring is fixedly connected with the sliding seat. The end of the spring far from the sliding seat is fixedly connected with the partition flap 18. The test sand taking cylinder 11 is rotated to drill the ground, and at the same time, the test sand storage cylinder 13 rotates with the test sand taking cylinder 11 to drill the sand. In addition, when the test sand storage cylinder 13 takes sand, the test pushing ring 15 will slide upward along the outer side of the test sand storage cylinder 13. When the test pushing ring 15 slides, the test ejector rod 16 moves upward following the test pushing ring 15. At the same time, the upper end of the test ejector rod 16 will push the upper end of the turning pull rope 17 upward. At this time, as the turning pull rope 17 moves, the partition flap 18 is pulled to turn into the arc-shaped groove around the rotating shaft, so that the partition flap 18 retracts into the corresponding arc-shaped groove. At the same time, the spring of the test spring seat 14 is compressed. In addition, when the test sand taking cylinder 11 is lifted upward and stops taking sand, the spring of the test spring seat 14 pushes the partition flap 18 to turn inward of the test sand storage cylinder 13 around the rotating shaft. Then, through the turning of a plurality of partition flaps 18, the sand entering the test sand storage cylinder 13 is supported to prevent it from falling. During this process, the turning of the partition flap 18 pulls the turning pull rope 17 to drag the test ejector rod 16 downward, and the test ejector rod 16 pushes the test pushing ring 15 downward through its downward movement.

[0032] In this embodiment: The drilling mechanism 2 includes a mounting frame 21. On one side of the mounting frame 21, a sliding guide rail 22 is fixed. On one side of the sliding guide rail 22, a drill rod 24 is provided. At the upper end of the drill rod 24, a hydraulic motor 23 is fixedly arranged. On the sliding guide rail 22, a lifting seat for mounting the hydraulic motor 23 is slidably connected. The mounting frame 21 is used to support the sliding guide rail 22. The lifting seat on the sliding guide rail 22 drives the hydraulic motor 23 and the drill rod 24 to move up and down. The hydraulic motor 23 drives the drill rod 24 and the test sand taking cylinder 11 to rotate.

[0033] In this embodiment: A plurality of limiting grooves 111 are formed at the lower end of the test sand sampling cylinder 11. The sliding seat is slidably connected in the limiting grooves 111. A threaded seat for connecting with the drill pipe 24 is fixed at the top of the lower end of the test sand sampling cylinder 11. A first through hole is formed at the top of the threaded seat. A second through hole is formed at the connection position between the top of the test sand sampling cylinder 11 and the threaded seat. A gas guide pipe extending out of the second through hole is fixed at the top of the test sand pushing plate 12. A crescent plate for increasing the supporting area of the sand is fixed at the top of the partition flap 18. The lower end of the drill pipe 24 is connected through the threaded seat. By pushing the test pushing ring 15, the partition flap 18 is turned into the arc-shaped groove of the test sand storage cylinder 13, and the gas guide pipe on the test sand pushing plate 12 is pushed from the centers of the first through hole and the second through hole, thereby causing the test sand pushing plate 12 to move downward along the inside of the test sand storage cylinder 13, and then pushing out the sand in the test sand storage cylinder 13.

[0034] In this embodiment: The moving mechanism 3 includes a moving frame 31. A support leg 32 is installed on one side of the moving frame 31. A moving wheel 33 is rotatably connected to the other side of the moving frame 31. The bottom of the mounting frame 21 is fixedly connected to the top of the moving frame 31. The support leg 32 is used to support one side of the moving frame 31, and at the same time, the moving wheel 33 is used to support the other end of the moving frame 31. At the same time, when the support leg 32 is retracted, the moving frame 31 can be conveniently moved through the moving wheel 33.

[0035] Working principle: During use, the moving frame 31 can be conveniently moved through the moving wheel 33, so that the moving frame 31 moves to the sand sampling position. Then, the support leg 32 is used to support one side of the moving frame 31, and the moving wheel 33 is used to support the other side of the moving frame 31, thereby placing and supporting the entire sand sampler.

[0036] Subsequently, the sliding guide rail 22 is supported by the mounting frame 21. The lifting seat on the sliding guide rail 22 drives the hydraulic motor 23 and the drill pipe 24 to move up and down. The hydraulic motor 23 drives the drill pipe 24 and the test sand sampling cylinder 11 to rotate.

[0037] The ground is drilled by the rotation of the test sand sampling cylinder 11. At the same time, the test sand storage cylinder 13 rotates along with the test sand sampling cylinder 11 to drill the sand. In addition, when the test sand storage cylinder 13 takes sand, the test pushing ring 15 slides upward along the outside of the test sand storage cylinder 13. When the test pushing ring 15 slides, the test push rod 16 moves upward along with the test pushing ring 15. At the same time, the upper end of the test push rod 16 pushes the upper end of the flipping pull rope 17 upward. At this time, as the flipping pull rope 17 moves, the partition flap 18 is pulled to flip into the arc-shaped groove around the rotating shaft, so that the partition flap 18 retracts into the corresponding arc-shaped groove. At the same time, the spring of the test spring seat 14 is compressed. At this time, the sliding seat of the test spring seat 14 slides relatively in the limiting groove 111.

[0038] In addition, when the sand sampling cylinder 11 is lifted upward and stops sampling, the spring of the test spring seat 14 pushes the partition flap 18 to turn inward toward the test sand storage cylinder 13 with the rotating shaft as the center. Immediately, the entering sand in the test sand storage cylinder 13 is supported by the turning of multiple partition flaps 18 to prevent it from falling. During this process, the turning of the partition flap 18 pulls the turning pull rope 17 to drag the test ejector rod 16 downward, and the downward movement of the test ejector rod 16 pushes the test push ring 15 downward.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A rock and soil exploration sand extractor, comprising a drilling mechanism (2), wherein a moving mechanism (3) is provided on the lower side of the drilling mechanism (2), characterized in that: It also includes a sand taking mechanism (1); The sand taking mechanism (1) comprises a test sand taking cylinder (11), a test sand storage cylinder (13) is fixed inside the test sand taking cylinder (11), a test sand pushing plate (12) is slidably connected inside the test sand storage cylinder (13), a plurality of arc grooves are opened at the lower end of the test sand storage cylinder (13), and a rotating shaft is arranged in each arc groove, each arc groove is rotatably connected to a barrier flap (18), and the rotating shaft is rotatably connected to the barrier flap (18), a test spring seat (14) is arranged on the outer side of each barrier flap (18) near the rotating shaft, and a flip rope (17) is fixed on the outer side of the barrier flap (18) away from the rotating shaft, a test push ring (15) is slidably connected between the test sand taking cylinder (11) and the test sand storage cylinder (13), a plurality of test push rods (16) are fixed on the top of the test push ring (15), and the upper end of each test push rod (16) is fixedly connected to the corresponding flip rope (17).

2. A rock and soil exploration sand sampling device according to claim 1, characterized in that: The test spring seat (14) is composed of a spring and a sliding seat, the spring is fixedly connected to the sliding seat, and one end of the spring away from the sliding seat is fixedly connected to the barrier flap (18).

3. A rock and soil exploration sand sampling device according to claim 2, characterized in that: A plurality of limiting grooves (111) are provided at the lower end of the test sand extraction cylinder (11), and the sliding seat is slidably connected in the limiting grooves (111).

4. A rock and soil exploration sand sampling device according to claim 1, characterized in that: The drilling mechanism (2) comprises a mounting frame (21), a sliding guide rail (22) being fixed to one side of the mounting frame (21), a drill rod (24) being provided to one side of the sliding guide rail (22), a hydraulic motor (23) being fixed to the upper end of the drill rod (24), and a lifting seat for mounting the hydraulic motor (23) being slidably connected to the sliding guide rail (22).

5. A rock and soil survey sand sampling device according to claim 4, characterized in that: A threaded seat for connecting to a drill rod (24) is fixed at the top of the lower end of the test sand extraction cylinder (11), and a first through hole is formed at the top of the threaded seat.

6. A rock and soil survey sand sampling device according to claim 1, characterized in that: A crescent plate for increasing the supporting area for sand is fixed on the top of the baffle flap (18).

7. A rock and soil survey sand sampling device according to claim 1, characterized in that: A second through hole is provided at a connection position between the top of the test sand taking cylinder (11) and the threaded seat, and an air guide pipe extending out of the second through hole is fixed to the top of the test sand pushing plate (12).

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